CN105336994B - For Vehicular battery group management system and method - Google Patents
For Vehicular battery group management system and method Download PDFInfo
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- CN105336994B CN105336994B CN201410341273.2A CN201410341273A CN105336994B CN 105336994 B CN105336994 B CN 105336994B CN 201410341273 A CN201410341273 A CN 201410341273A CN 105336994 B CN105336994 B CN 105336994B
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- 238000000034 method Methods 0.000 title claims abstract description 63
- 238000007726 management method Methods 0.000 claims description 117
- 238000010438 heat treatment Methods 0.000 claims description 28
- 238000001816 cooling Methods 0.000 claims description 27
- 230000005611 electricity Effects 0.000 claims description 21
- 230000004044 response Effects 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 10
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 9
- 229910052744 lithium Inorganic materials 0.000 description 9
- 230000008859 change Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a kind of Vehicular battery group management system and method.The system comprises：The positive switch and negative switch for being separately positioned between the cathode of the battery pack and anode and vehicle load and being electrically connected in series with the battery pack and the vehicle load；The pre-charge resistance being electrically connected in series and precharge switch being arranged between the battery pack and vehicle load；First switch, the first end of the first switch is connected between the first end of the pre-charge resistance and the first end of the precharge switch, and the second end of the first switch is connected between the negative switch and the vehicle load；And battery management unit, for controlling closure and/or disconnecting positive switch, negative switch, precharge switch and/or first switch, powered as vehicle load precharge, from battery pack to vehicle load from the battery pack using realizing or vehicle load is discharged by pre-charge resistance.
Description
Technical field
The present invention relates generally to vehicle electric field, relates more specifically to a kind of Vehicular battery group management system and method.
Background technology
In the car, high pressure (HV) system, including battery, inverter, motor etc., have stringent security requirement.It is special
It is not in case of emergency, when accident such as occurs, quickly and reliably by high voltage power supply, such as battery pack, from high-pressure system
Other parts, such as vehicle load disconnect, and are vital.In addition it is important that as quickly as possible by high-pressure system
Other parts are discharged, to prevent electric charge from dissipating out of control.For example, preventing system component, such as cable, produces electric arc thing when being damaged
Part.In addition, in vehicle load, the feelings for continuing to power to the other parts of high-pressure system such as electro-motor or power supply inverter unit
Under condition, such as due to after accident or losing and cause after control to converter in the case that wheel rotates freely, although high voltage bus,
High-tension battery has been fully disconnected, but the release system of dump energy will fail, and causes high-pressure system other parts when long
In in concerned power be unsafe.In this case, when a vehicle collision occurs, it is desirable to provide faster, more reliable
Solution disconnects battery pack and vehicle load or vehicle load is discharged.
On the other hand, the battery used in vehicle, within the scope of certain temperature, such as lithium battery, its internal resistance with
The change of temperature and significant changes.Lithium battery interior resistance reduces when the temperature increases, and the efficiency of lithium battery improves therewith, electricity
Pond can work in the power level of higher.And when temperature is very low, lithium battery cannot work at all.Therefore, lithium battery is worked as
Temperature it is too low when, it is necessary to lithium battery is heated, could be used in cold environment.In general, using the air cooling system of vehicle, lead to
Cross using the air in driver's cabin as the source being heated or cooled, lithium battery is heated.But when temperature is very low, it is wet
The cabin air of heat can cause vapor to be condensed on cold battery component.Condensed if necessary to remove, it is still necessary to from interior
Battery pack is heated in portion, it is desirable to provide extra heating element and the power supply that electric energy is provided for heating element, make battery
The structure of circuit is more complicated, adds cost.
The content of the invention
In view of the above problems, it is proposed that the present invention, in order to provide a kind of Vehicular battery group management system and method, to overcome
The above problem solves the above problems at least in part.
According to the first aspect of the present invention, there is provided a kind of Vehicular battery group management system, the system comprises：Cathode is opened
Close, be arranged between cathode and the vehicle load of the battery pack, the positive switch is born with the battery pack and the vehicle
Load is electrically connected in series；Negative switch, is arranged between anode and the vehicle load of the battery pack, the negative switch and institute
State battery pack and the vehicle load is electrically connected in series；Pre-charge resistance and precharge switch, the pre-charge resistance and institute
State precharge switch to be electrically connected in series, and the pre-charge resistance connected and the precharge switch are arranged on the battery
Between group and vehicle load, wherein, the first end of the pre-charge resistance is connected with the first end of the precharge switch, described
The second end of pre-charge resistance is connected between the positive switch and the vehicle load, and by the of the precharge switch
Two ends are connected between the cathode of the positive switch and the battery pack；First switch, the first end of the first switch connect
It is connected between the first end of the pre-charge resistance and the first end of the precharge switch, and the second end of the first switch
It is connected between the negative switch and the vehicle load；Battery management unit, for disconnecting the first switch and described
Positive switch, close the negative switch and the precharge switch, to be pre-charged by the battery pack as the vehicle load；
After the completion of precharge, the battery management unit is used to close the positive switch and the negative switch, disconnects described pre-
Charge switch, to be powered from the battery pack to vehicle load；And when accident occurs for vehicle, the battery management unit is used for
Disconnect the positive switch and the negative switch, and close the first switch, using by the pre-charge resistance as the car
Load discharge.
According to an embodiment of the present invention, the battery management unit is additionally operable to：Born from the battery pack to vehicle
After carrying power supply, battery pack is heated by closing the first switch and disconnect described the first of closure after the completion of heating and open
Close.
According to an embodiment of the present invention, wherein the battery management unit is additionally operable to：Measure the temperature of the battery pack
Degree；Measured temperature is compared with predetermined temperature threshold；When measured temperature is less than the temperature threshold,
Close the first switch；And when measured temperature is equal to or more than the temperature threshold, disconnect described the of closure
One switch, to control the temperature of the battery pack.
According to an embodiment of the present invention, wherein the battery pack is the multiple battery units being electrically connected in series, institute
Stating pre-charge resistance, to be arranged to the distance between each battery unit in the multiple battery unit equal.
According to an embodiment of the present invention, wherein the battery pack is radiated by the air cooling system of the vehicle；And institute
Pre-charge resistance is stated to be arranged at the air intake of the air cooling system.
According to an embodiment of the present invention, wherein the battery pack includes the multiple battery units being electrically connected in series,
The pre-charge resistance is several pre-charge resistances being electrically connected in series, several described pre-charge resistances are evenly distributed in
Around the multiple battery unit.
According to an embodiment of the present invention, wherein the multiple battery unit is radiated by the liquid cooling system of the vehicle；
Several described pre-charge resistances abut the multiple battery unit.
According to an embodiment of the present invention, the system also includes：Several second switches, described several second are opened
Each of the Central Shanxi Plain is electrically connected in parallel with each pre-charge resistance in several described pre-charge resistances respectively；It is and described
Battery management unit is additionally operable to：Close the first switch；It is respectively closed or disconnects and is in several described second switches each
It is a, to control the temperature of each in the multiple battery unit.
According to an embodiment of the present invention, wherein the battery management unit is used for：When accident occurs for vehicle, receive
The trouble-signal of control unit for vehicle or air bag control unit；In response to the trouble-signal, the positive switch is disconnected
With the negative switch, and the first switch is closed to be discharged by the pre-charge resistance as the vehicle load.
According to an embodiment of the present invention, the battery management unit is additionally operable to：When accident occurs for vehicle, when described
When positive switch and the negative switch can not disconnect, the precharge switch and the closure first switch are disconnected, by described
Pre-charge resistance consumes the energy of the battery pack.
According to an embodiment of the present invention, wherein being provided outside metal-back in the pre-charge resistance.
According to an embodiment of the present invention, the system also includes：The pre-charge resistance is arranged to prism-shaped, cylinder
Shape or sheet.
According to the second aspect of the invention, there is provided a kind of Vehicular battery group management system, the system comprises：Cathode is opened
Close, be arranged between the cathode of the battery pack and the vehicle load, the positive switch and the battery pack and the car
It is electrically connected load in series；Negative switch, is arranged between the anode of the battery pack and the vehicle load, the anode
Switch is electrically connected in series with the battery pack and the vehicle load；Pre-charge resistance and precharge switch, the precharge
Resistance and the precharge switch are electrically connected in series, and the pre-charge resistance connected and the precharge switch are set
Between the battery pack and vehicle load, wherein, the first end of the pre-charge resistance and the first of the precharge switch
End connection, the second end of the pre-charge resistance are connected between the positive switch and the vehicle load, and will be described pre-
The second end of charge switch is connected between the cathode of the positive switch and the battery pack；First switch, described first opens
The first end of pass is connected between the first end of the pre-charge resistance and the first end of the precharge switch and by described in
The second end of first switch is connected between the negative switch and the vehicle load；Battery management unit, for disconnecting
State first switch and the positive switch, close the negative switch and the precharge switch, using by the battery pack as institute
State vehicle load precharge；After the completion of precharge, the battery management unit is used to closing the positive switch and described negative
Pole switchs, and disconnects the precharge switch, to be powered from the battery pack to vehicle load；And detected when accident occurs for vehicle
Whether the positive switch and the negative switch can not disconnect；When the positive switch and the negative switch can not disconnect
When, the battery management unit is used to close the first switch, and the energy of the battery pack is consumed by the pre-charge resistance.
According to an embodiment of the present invention, the battery management unit is used for：When accident occurs for vehicle, vehicle is received
The trouble-signal of control unit or air bag control unit；In response to the trouble-signal, the positive switch and institute are detected
State whether negative switch can not disconnect.
According to an embodiment of the present invention, wherein the battery management unit is additionally operable to：From the battery pack to car
After load supplying, battery pack is heated by closing the first switch and disconnect described the of closure after the completion of heating
One switch.
According to an embodiment of the present invention, wherein the battery management unit is additionally operable to：Measure the temperature of the battery pack
Degree；Measured temperature is compared with predetermined temperature threshold；When measured temperature is less than the temperature threshold,
Close the first switch；And when measured temperature is equal to or more than the temperature threshold, disconnect described the of closure
One switch, to control the temperature of the battery pack.
According to the third aspect of the invention we, there is provided a kind of Vehicular battery group management method, the described method includes：Described
Positive switch is disposed in series between the cathode and vehicle load of battery pack；Between the anode of the battery pack and vehicle load
It is disposed in series negative switch；The pre-charge resistance that is electrically connected in series and pre- is set between the battery pack and vehicle load
Charge switch, wherein, the first end of the pre-charge resistance is connected with the first end of the precharge switch, the precharge electricity
The second end of resistance is connected between the positive switch and the vehicle load, and the second end of the precharge switch is connected to
Between the cathode of the positive switch and the battery pack；One first switch is set, the first end of the first switch is connected
Between the first end of the pre-charge resistance and the first end of the precharge switch and by the second end of the first switch
It is connected between the negative switch and the vehicle load；Disconnect described in the first switch and the positive switch, closure
Negative switch and the precharge switch, to be pre-charged by the battery pack as the vehicle load；After the completion of precharge, close
The positive switch and the negative switch are closed, disconnects the precharge switch, to be powered from the battery pack to vehicle load；
And when accident occurs for vehicle, the positive switch and the negative switch are disconnected, and the first switch is closed, with by described
Pre-charge resistance discharges for the vehicle load.
According to an embodiment of the present invention, wherein closing the positive switch after the completion of precharge and the anode is opened
Close, disconnect the precharge switch, after powering from the battery pack to vehicle load, the method further includes：By closing
The first switch is closed or disconnected, controls the temperature of the battery pack.
According to an embodiment of the present invention, wherein by closing or disconnecting the first switch, the battery pack is controlled
Temperature include：Measure the temperature of the battery pack；Measured temperature is compared with predetermined temperature threshold；Work as institute
When the temperature of measurement is less than the temperature threshold, the first switch is closed；And when measured temperature is equal to or more than institute
When stating temperature threshold, the first switch of closure is disconnected, to control the temperature of the battery pack.
According to an embodiment of the present invention, wherein the battery pack is the multiple battery units being electrically connected in series, institute
The method of stating further includes：By the pre-charge resistance be arranged between each battery unit in the multiple battery unit away from
From equal.
According to an embodiment of the present invention, wherein the battery pack is radiated by the air cooling system of the vehicle；And institute
The method of stating further includes：The pre-charge resistance is arranged at the air intake of the air cooling system.
According to an embodiment of the present invention, wherein the battery pack includes the multiple battery units being electrically connected in series,
The pre-charge resistance is several pre-charge resistances being electrically connected in series, and the method further includes：Several are pre- by described in
Charging resistor is evenly distributed in around the multiple battery unit.
According to an embodiment of the present invention, wherein the multiple battery unit is radiated by the liquid cooling system of the vehicle；
And the method further includes：Several described pre-charge resistances are abutted into the multiple battery unit.
According to an embodiment of the present invention, the method further includes：Will be each in several described pre-charge resistances
Pre-charge resistance is electrically connected in parallel with a second switch respectively；And wherein controlled by closing or disconnecting the first switch
Making the temperature of the battery pack includes：Close the first switch；It is respectively closed or disconnects in several described second switch
Each, to control the temperature of each in the multiple battery unit.
According to an embodiment of the present invention, wherein when accident occurs for vehicle, the positive switch and described negative is disconnected
Pole switchs, and closes the first switch to include for vehicle load electric discharge：When accident occurs for vehicle, vehicle control is received
The trouble-signal of unit or air bag control unit processed；In response to the trouble-signal, the positive switch and described is disconnected
Negative switch, and the first switch is closed to be discharged by the pre-charge resistance as the vehicle load.
According to an embodiment of the present invention, the method further includes：When accident occurs for vehicle, when the positive switch
When can not be disconnected with the negative switch, the precharge switch and the closure first switch are disconnected, by the precharge electricity
Resistance consumes the energy of the battery pack.
According to an embodiment of the present invention, the method further includes：Metal-back is set outside the pre-charge resistance.
According to an embodiment of the present invention, the method further includes：The pre-charge resistance is arranged to prism-shaped, circle
Column or sheet.
According to the fourth aspect of the invention, there is provided a kind of Vehicular battery group management method, the described method includes：Described
Positive switch is disposed in series between the cathode and vehicle load of battery pack；Between the anode of the battery pack and vehicle load
It is disposed in series negative switch；Set between the battery pack and vehicle load the pre-charge resistance that is electrically connected in series and
Precharge switch, wherein, the first end of the pre-charge resistance is connected with the first end of the precharge switch, the precharge
The second end of resistance is connected between the positive switch and the vehicle load, and the second end connection of the precharge switch
Between the cathode of the positive switch and the battery pack；One first switch is set, the first end of first switch is connected to
Between the first end of the pre-charge resistance and the first end of the precharge switch and by the second end of the first switch
It is connected between the negative switch and the vehicle load；Disconnect described in the first switch and the positive switch, closure
Negative switch and the precharge switch, to be pre-charged by the battery pack as the vehicle load；After the completion of precharge, close
The positive switch and the negative switch are closed, disconnects the precharge switch, to be powered from the battery pack to vehicle load；
And detect whether the positive switch and the negative switch can not disconnect when accident occurs for vehicle；When the positive switch and
When the negative switch can not disconnect, the first switch is closed, the energy of the battery pack is consumed by the pre-charge resistance.
According to an embodiment of the present invention, wherein detecting the positive switch and the anode when accident occurs for vehicle
Switch whether can not disconnect including：When accident occurs for vehicle, the thing of control unit for vehicle or air bag control unit is received
Therefore signal；In response to the trouble-signal, detect whether the positive switch and the negative switch can not disconnect.
According to an embodiment of the present invention, wherein closing the positive switch after the completion of precharge and the anode is opened
Close, disconnect the precharge switch, after powering from the battery pack to vehicle load, the method further includes：By closing
The first switch is closed or disconnected, controls the temperature of the battery pack.
According to an embodiment of the present invention, wherein by closing or disconnecting the first switch, the battery pack is controlled
Temperature include：Measure the temperature of the battery pack；Measured temperature is compared with predetermined temperature threshold；Work as institute
When the temperature of measurement is less than the temperature threshold, the first switch is closed；And when measured temperature is equal to or more than institute
When stating temperature threshold, the first switch of closure is disconnected, to control the temperature of the battery pack.
In short, Vehicular battery group management system and method that embodiments of the present invention provide, there is provided a kind of quick, can
By the scheme with safety, the immediate current spike in battery circuit can not only be effectively avoided, extends the service life of each component,
Battery can also be disconnected from vehicle load, and effectively the residual charge in vehicle load discharges；Even if battery pack and vehicle
Load can not disconnect, and vehicle load can also be discharged by resistance, and this scheme is effectively and reliable；Vehicle battery packs can be controlled
Temperature, control the heat around battery pack each region respectively, adjust temperature respectively to each battery unit, while being capable of basis
The speed for controlling battery pack to heat up is needed, is evenly distributed heat, so that all battery unit heating have identical temperature；
A large amount of amount of localized heat caused by can working battery circuit are managed；Itself the resistance of heat can be produced using after energization
As heating element, it is not necessary to be arranged to the extra power supply of heater element power supply, simplify the structure of battery circuit, reduce
Cost；In addition, Vehicular battery group management system and method that embodiments of the present invention provide are not only suitable for using air cooling system
Vehicle, be also applied for the vehicle using liquid cooling system.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, and in order to allow above and other objects of the present invention, feature and advantage can
Become apparent, below especially exemplified by the embodiment of the present invention.
Brief description of the drawings
By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is common for this area
Technical staff will be clear understanding.Attached drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention
Limitation.And in whole attached drawing, identical component is denoted by the same reference numerals.In the accompanying drawings：
Fig. 1 be according to an embodiment of the present invention in be used for control battery pack temperature device schematic diagram；
Fig. 2 is multiple battery units and the signal of several first resistors in battery pack middle according to an embodiment of the present invention
Figure；
Fig. 3 is the voltage of vehicle load when closure is respectively switched in system 100 according to an embodiment of the present invention or being disconnected
And the curve map of the temperature change of battery pack；
Fig. 4 is the flow chart of Vehicular battery group management method 200 according to an embodiment of the present invention；And
Fig. 5 is the flow chart of Vehicular battery group management method 300 according to an embodiment of the present invention.
Embodiment
The illustrative embodiments of the disclosure are more fully described below with reference to accompanying drawings.Although this public affairs is shown in attached drawing
The illustrative embodiments opened, it being understood, however, that may be realized in various forms the disclosure without the reality that should be illustrated here
The mode of applying is limited.Conversely, there is provided these embodiments are to be able to be best understood from the disclosure, and can be by this public affairs
The scope opened completely is communicated to those skilled in the art.It should be appreciated that those skilled in the art are not it is contemplated that although have
Have and be expressly recited or record in the present specification but realize the present invention and be included in present invention spirit, principle and model
Enclose interior various structures.All examples and conditional language quoted from this specification are all in order at explanation and the purpose of teaching,
To help reader to understand principle and concept that inventor contributes the prior art, and it should be understood that and be not limited to these
The example and condition specifically quoted from.In addition, in order to illustrate more clearly of eliminating for the detailed of known devices, circuit and method
Thin description, not obscure description of the invention.It is to be understood that unless stated otherwise, the feature in each embodiment described herein
It can be combined with each other.
It will be understood by those skilled in the art that the quantity of each component cited in the exemplary embodiment of the present invention is only
It is for illustrative purposes, and is not construed as limitation of the present invention.Each component can have other numbers in the present invention
Amount, is made without departing from the scope of the present invention.
In the present specification, the function of each unit can be by using specialized hardware or can be with appropriate software
It is combined and is realized to perform the hardware of processing.Such hardware or specialized hardware can include application-specific integrated circuit (ASIC),
Various other circuits, various processors etc..When being realized by processor, which can be by single application specific processor, single common
Processor or multiple independent processors (some of which may be shared) are enjoyed to provide.In addition, processor should not be managed
Solve to refer exclusively to be able to carry out the hardware of software, but can implicitly include and be not limited to digital signal processor (DSP) firmly
Part, for storing the read-only storage of software (ROM), random access memory (RAM) and non-volatile memory apparatus.
Embodiment one
According to the first aspect of the invention, there is provided a kind of Vehicular battery group management system 100, the system 100 include：
Positive switch 120, is arranged between cathode and the vehicle load 101 of the battery pack 110, the positive switch 120 with it is described
Battery pack 110 and the vehicle load 101 are electrically connected in series；Negative switch 130, is arranged on the anode of the battery pack 110
Between vehicle load 101, the negative switch 130 is electrically connected in series with the battery pack 110 and the vehicle load 101
Connect；Pre-charge resistance 140 and precharge switch 150, the pre-charge resistance 140 and the precharge switch 150 are electric in series
Connection, and connect the pre-charge resistance 140 and the precharge switch 150 is arranged on the battery pack 110 and vehicle is born
Between carrying 101, wherein, the first end of the pre-charge resistance 140 is connected with the first end of the precharge switch 150, described
The second end of pre-charge resistance 140 is connected between the positive switch 120 and the vehicle load 101, and by the preliminary filling
The second end of electric switch 150 is connected between the cathode of the positive switch 120 and the battery pack 110；First switch 160,
The first end of the first switch 160 be connected to the pre-charge resistance 140 first end and the precharge switch 150
Between one end, and the second end of the first switch 160 is connected between the negative switch 130 and the vehicle load 101；
Battery management unit 170, for disconnecting the first switch 160 and the positive switch 120, the closure negative switch 130
With the precharge switch 150, to be pre-charged by the battery pack 110 for the vehicle load 101；After the completion of precharge,
The battery management unit 170 is used to close the positive switch 120 and the negative switch 130, disconnects the preliminary filling and establishes by cable
150 are closed, to be powered from the battery pack 110 to vehicle load 101；And when accident occurs for vehicle, the battery management unit
170 are used to disconnect the positive switch 120 and the negative switch 130, and close the first switch 160, with by described pre-
Charging resistor 140 is discharged for the vehicle load 101.
According to the embodiment of the present invention, battery pack 110, such as lithium battery group, be to the high-pressure system 100 of vehicle other
Part, such as inverter or motor, the power supply of power supply.
Fig. 1 shows the non-limiting and exemplary embodiment of the present invention.It should be appreciated that represented by Fig. 1
The connection relation of each unit is merely illustrative, and those skilled in the art can use other connection relations completely, as long as at this
Each unit can also realize the function of the present invention under the connection relation of sample.
As shown in Figure 1, Vehicular battery group management system 100 according to an illustrative embodiment of the invention is opened including cathode
Close 120 and negative switch 130.Positive switch 120 is arranged between cathode and the vehicle load 101 of the battery pack 110,
The positive switch 120 is electrically connected in series with the battery pack 110 and the vehicle load 101.Negative switch 130 is arranged on
Between the anode and the vehicle load 101 of the battery pack 110, the negative switch 130 and the battery pack 110 and described
Vehicle load 101 is electrically connected in series.
System 100 further includes pre-charge resistance 140 and precharge switch 150, the pre-charge resistance 140 and the preliminary filling
Electric switch 150 is electrically connected in series, and the pre-charge resistance 140 and the precharge switch 150 connected are arranged on institute
State between battery pack 110 and vehicle load 101, wherein, first end and the precharge switch of the pre-charge resistance 140
150 first end connection, the second end of the pre-charge resistance 140 are connected to the positive switch 120 and the vehicle load
Between 101, and the second end of the precharge switch 150 is being connected to the positive switch 120 and the battery pack 110 just
Between pole.
System 100 further includes first switch 160, and the first end of the first switch 160 is connected to the pre-charge resistance
Between the first end of 140 first end and the precharge switch 150, and the second end of the first switch 160 is connected to institute
State between negative switch 130 and the vehicle load 101.
System 100 further includes battery management unit 170, for disconnecting the first switch 160 and the positive switch
120th, the negative switch 130 and the precharge switch 150 are closed, with by the battery pack 110 for the vehicle load 101
Precharge.When positive switch 120, negative switch 130 and first switch 160 disconnect, there is no electric current in whole battery circuit.If
Without pre-charge process, and battery pack 110 is directly disposed as normal power supply state to vehicle load 101, need to closed at the same time
Positive switch 120 and negative switch 130 are closed, an immediate current spike can be produced in circuit at this time, seriously affects battery electricity
The service life of each element in road.Therefore, in closure positive switch 120 and negative switch 130 to be born from battery pack 110 to vehicle
Before carrying 101 power supplies, battery management unit 170 first disconnects the first switch 160 and the positive switch 120, makes at circuit
In off-position；Then, battery management unit 170 closes precharge switch 150 and negative switch 130, at this time, pre-charge resistance
140 are connected in series with battery pack 110 and load 101, and a part of load is served as by pre-charge resistance 140, so as to avoid moment electric
Spike is flowed, extends the service life of each element in battery circuit.After the completion of precharge, the battery management unit 170 is used for
The positive switch 120 and the negative switch 130 are closed, disconnects the precharge switch 150, with by the battery pack 110
Power to vehicle load 101, there is no electric current in pre-charge resistance 140 at this time.When accident occurs for vehicle, the battery management list
Member 170 is used to disconnect the positive switch 120 and the negative switch 130, so that between battery pack 110 and vehicle load 101
Power-off, and the first switch 160 is closed, pre-charge resistance 140 is connected in series with vehicle load 101 at this time, passes through precharge
Resistance 140 discharges for the vehicle load 101.
According to an illustrative embodiment of the invention, the battery management unit 170 is additionally operable to：By the battery pack
After 110 power to vehicle load 101, battery pack 110 is heated and after the completion of heating by closing the first switch 160
Disconnect the first switch 160 of closure.After being powered from the battery pack 110 to vehicle load 101,120 He of positive switch
Negative switch 130 closes；When closing first switch 160, pre-charge resistance 140, which is powered, produces heat so as to heat battery pack
110；After the completion of heating, when disconnecting first switch 160, there is no electric current in pre-charge resistance 140, no longer produce heat, so that
The temperature for maintaining battery pack 110 or the temperature for making battery pack 110 are gradually reduced through radiating.This mode uses itself energy after being powered
The resistance of heat is produced as heating element, it is not necessary to be arranged to the extra power supply of heater element power supply, simplify battery electricity
The structure on road, reduces cost.
According to an illustrative embodiment of the invention, the battery management unit 170 is additionally operable to：Measure the battery pack
110 temperature；Measured temperature is compared with predetermined temperature threshold；When measured temperature is less than the temperature
During threshold value, the first switch 160 is closed；And when measured temperature is equal to or more than the temperature threshold, disconnection is closed
The first switch 160 closed, to control the temperature of the battery pack 110.As shown in Figure 1, battery management unit 170 closes just
Pole switch 120 and negative switch 130 with from battery pack 110 to vehicle load power；Battery management unit 170 measures battery pack
110 temperature T；By the temperature T of measured battery pack 110 and predetermined temperature threshold T0Compare, alternatively, in advance
Definite temperature threshold T0Temperature when can be 110 work efficiency highest of battery pack.Alternatively, the battery pack detected
110 temperature T can be the temperature that is directly measured by a temperature sensor or one group of temperature sensor detects
The average value of temperature or 110 temperature of battery pack drawn according to other algorithms.When measured temperature T is less than temperature threshold T0,
Battery management unit 170 closes first switch 160, then first switch 160 by pre-charge resistance 140 and battery pack 110 in parallel
It is electrically connected, pre-charge resistance 140 produces heat after being powered, so as to heat battery pack 110.When measured temperature T is equal to or greatly
In temperature threshold T0, the first switch 160 of the disconnection closure of battery management unit 170, then do not have electric current in pre-charge resistance 140,
Heat is no longer produced, so that the temperature T of battery pack 110 is maintained temperature threshold T0Or make the temperature T of battery pack 110 through heat dissipation
It is gradually lowered to temperature threshold T0.This mode itself can produce the resistance of heat using after energization as heating element, be not required to
The extra power supply of heater element power supply is arranged to, the structure of battery circuit is simplified, reduces cost.
According to an illustrative embodiment of the invention, the battery pack 110 is the multiple battery units being electrically connected in series
111-119, the pre-charge resistance 140 are arranged between each battery unit in the multiple battery unit 111-119
Distance it is equal.Alternatively, battery pack 110 may include multiple battery unit 111-119, these battery units 111-119 can be with
With various combined serials and/or it is connected in parallel, to provide required voltage and energy.For example, battery pack 110 may include multiple strings
Join the battery unit 111-119 of connection, each battery unit may also include multiple series connection and/or the battery being connected in parallel.In order to
The purpose of packaging, installation, safety management and control, these battery units 111-119 could be provided as independent module.For example,
For a battery pack 110 with 96 batteries being connected in series, battery pack 110 can be arranged to 12 electricity being connected in series
Pool unit, each battery unit may be configured as independent module, and each module includes 8 batteries being connected in series.This area skill
Art personnel should be understood that the quantity of each component cited in exemplary embodiment of the invention merely to the mesh of explanation
, and it is not construed as limitation of the present invention.Each component can have other quantity in the present invention, without departing from this hair
Bright scope.Alternatively, multiple battery unit 111-119 can be evenly distributed on to the circumference with pre-charge resistance 140 for the center of circle
On.Alternatively, multiple battery unit 111-119 can be evenly distributed on pre-charge resistance 140 as on the sphere of the centre of sphere.It is this
Mode causes pre-charge resistance 140 to be uniformly heated up each battery unit in battery pack 110.
According to an illustrative embodiment of the invention, the battery pack 110 is radiated by the air cooling system of the vehicle；And
The pre-charge resistance 140 is arranged at the air intake of the air cooling system.The air cooling system of vehicle is used in driver's cabin
Air is as the source being heated or cooled, battery pack 110 is heated or radiated.By the way that pre-charge resistance 140 is arranged on institute
State at the air intake of air cooling system so that the air in driver's cabin is arranged on described air-cooled when by air intake
The pre-charge resistance 140 of the air intake of system heats, and the air after heating quickly reaches and surrounds battery pack 110, to battery
The heating of group 110.Heat, can be quickly delivered to battery pack 110 by this mode, and is added battery pack 110 and participated in hot biography
The contact area passed, so that battery pack 110 quickly heats up.
According to an illustrative embodiment of the invention, the battery pack 110 includes the multiple battery lists being electrically connected in series
First 111-119, the pre-charge resistance 140 are several pre-charge resistances being electrically connected in series, several described precharge
Resistance 140 is evenly distributed in around the multiple battery unit 111-119, so as to more uniformly controlling the temperature of battery pack 110
Degree.Alternatively, the quantity of battery unit 111-119 can be equal to the quantity of pre-charge resistance 140, can not also be equal to precharge
The quantity of resistance 140.Alternatively, as shown in Fig. 2, battery pack 110 may include multiple, such as 9 battery lists being electrically connected in series
First 111-119, pre-charge resistance 140 are several, such as four pre-charge resistance 141-144 being electrically connected in series, this four
Pre-charge resistance 141-144 can be configured as being evenly distributed in battery pack 110, i.e., around battery unit 111-119.Alternatively,
The battery pack 110 can have the battery unit 111-119 of other quantity.Alternatively, pre-charge resistance 140 can also be other numbers
The pre-charge resistance of amount.Fig. 2 shows multiple battery units in battery pack 110 middle according to an illustrative embodiment of the invention
The schematic diagram of 111-119 and several pre-charge resistances 140.As shown in Fig. 2, as the battery unit 111-119 in battery pack 110
Along a straight line successively equidistantly when, pre-charge resistance 141 may be provided at battery unit 112, and pre-charge resistance 142 is set
At battery unit 114, pre-charge resistance 143 is arranged at battery unit 116, and pre-charge resistance 144 is arranged on battery unit
At 118, so that each several part of battery pack 110 is evenly heated.Alternatively, four pre-charge resistance 141-144 can be arranged to one
A module, 9 battery unit 111-119 are evenly distributed on using the module as on the circumference in the center of circle.Alternatively, can be by 9 electricity
Pool unit 111-119 is arranged to a module, and four pre-charge resistance 141-144 are evenly distributed on using the module as the centre of sphere
On sphere.Alternatively, 9 battery unit 111-119 can be arranged to a module, four pre-charge resistance 141-144 are equal
It is even to be distributed in using the module as on the circumference in the center of circle.Alternatively, pre-charge resistance 140 can be set against battery pack 110, can also be set
It is set to apart from 110 a distance of battery pack.
According to an illustrative embodiment of the invention, the multiple battery unit 111-119 by the vehicle the cold system of liquid
System heat dissipation；Several described pre-charge resistances 140 abut the multiple battery unit 111-119, so that heat can be from precharge
Resistance 140 is directly delivered to battery pack 110, so that each several part of battery pack 110 be evenly heated.As shown in Fig. 2, system 100
Battery pack 110 include 9 battery unit 111-119, and 4 pre-charge resistance 141-144 are evenly distributed in battery unit
Around 111-119.When battery pack 110 is radiated by the liquid cooling system of the vehicle, pre-charge resistance 141 is positioned against battery
Unit 112, pre-charge resistance 142 are positioned against battery unit 114, and pre-charge resistance 143 is positioned against battery unit
116, pre-charge resistance 144 is positioned against battery unit 118, so that heat can be directly delivered to electricity from pre-charge resistance 140
Pond group 110, so that each several part of battery pack 110 be evenly heated.Alternatively, four pre-charge resistance 141-144 can be set
For a module, 9 battery unit 111-119 are uniformly distributed against the module.Alternatively, can be by 9 battery unit 111-
119 are arranged to a module, and four pre-charge resistance 141-144 are uniformly distributed against the module.
According to an illustrative embodiment of the invention, system 100 further includes：Several second switches 181-184, if described
In dry second switch 181-184 each respectively with each pre-charge resistance in several described pre-charge resistances 140
140 are electrically connected in parallel；And the battery management unit 170 is additionally operable to：Close the first switch 160；Be respectively closed or
Each in several described second switch 181-184 is disconnected, it is each in the multiple battery unit 111-119 to control
A temperature.
As shown in Fig. 2, the battery pack 110 includes a Battery pack unit 111-119 of series connection, such as 9 including series connection
A Battery pack unit 111-119 of a battery unit 111-119, and several pre-charge resistances 140 of series connection, such as 4
Pre-charge resistance 141-144.System 100 further includes several second switches 181-184, such as 4 second switch 181-184,
Each second switch is distinguished 181-184 and is electrically connected in parallel with a pre-charge resistance 140, such as second switch 181 and preliminary filling
Resistance 141 is electrically connected in parallel, and second switch 182 is electrically connected in parallel with pre-charge resistance 142, second switch 183 with it is pre-
Charging resistor 143 is electrically connected in parallel, and second switch 184 is electrically connected in parallel with pre-charge resistance 144.Battery management unit
170 are additionally operable to：Positive switch 120 and negative switch 130 are closed, to be powered by battery pack 110 to vehicle load, and closes first
Switch 160, so that the pre-charge resistance 141-144 of series connection with it is powered；It is respectively closed or disconnects several second switches
Each in 181-184, makes pre-charge resistance 141-144 short circuits connected in parallel or normal work, to control respectively respectively
The temperature of each in the multiple battery unit 111-119.For example, closure positive switch 120 and negative switch 130, and
After closing first switch 160, battery management unit 170 can close second switch 182, make pre-charge resistance 142 connected in parallel
Short circuit is without producing heat；Second switch 181,183 and 184 is simultaneously switched off, makes pre-charge resistance 141 connected in parallel, 143 and
144 work normally and produce heat, so as to heat the multiple battery units being arranged near pre-charge resistance 141,143 and 144
111-119.Alternatively, battery management unit 170 can be closed at multiple second switches, disconnect other second switches.It is optional
Ground, battery management unit 170 can close multiple second switch 181-184 successively in multiple time intervals, between each time
A second switch is closed every interior, disconnects other second switches.
According to an illustrative embodiment of the invention, alternatively, the battery management unit 170 and control unit for vehicle or
Air bag control unit communicates to connect.The battery management unit 170 is used for：When accident occurs for vehicle, vehicle control is received
The trouble-signal of unit or air bag control unit processed；In response to the trouble-signal, the positive switch 120 and institute are disconnected
Negative switch 130 is stated, and closes the first switch 160, to be put by the pre-charge resistance 140 for the vehicle load 101
Electricity.
According to an illustrative embodiment of the invention, wherein the battery management unit 170 is additionally operable to：Thing occurs in vehicle
Therefore when, when the positive switch 120 and the negative switch 130 can not disconnect, disconnect the precharge switch 150 and close
The first switch 160, the energy of the battery pack 110 is consumed by the pre-charge resistance 140.When positive switch 120 and bear
When pole switch 130 fails, can not disconnect, battery management unit 170 disconnects precharge switch 150 and the closure first switch
160, pre-charge resistance 140 is electrically connected with battery pack 110 and vehicle load 101, battery pack is consumed by pre-charge resistance 140
110 energy.Whether detection positive switch 120 and negative switch 130, which can not disconnect, can use any side of the prior art
Formula, such as realized by detecting 110 temperature of battery pack or detection circuit electric current etc..
According to an illustrative embodiment of the invention, wherein, metal-back is provided outside in the pre-charge resistance 140, with
More rapidly, effectively heat release.
According to an illustrative embodiment of the invention, the pre-charge resistance 140 is arranged to prism-shaped, cylindric or piece
Shape.
Fig. 3, which is shown in system 100 according to the embodiment of the present invention, respectively switchs vehicle load 101 when closing or disconnecting
Voltage and battery pack 110 temperature change curve map.
As shown in figure 3, in time interval t1In, battery management unit 170 disconnect positive switch 120, negative switch 130,
Precharge switch 150 and first switch 160.At this time, the not oriented vehicle load 101 of battery pack 110 is powered, pre-charge resistance
There is no electric current in 140, do not heat battery pack 110, the voltage of vehicle load 101 is 0, and the temperature T of battery pack 110 is equal to environment
Temperature is simultaneously less than temperature threshold T0.Alternatively, when accident occurs for vehicle, the disconnection of battery management unit 170 positive switch 120,
Negative switch 130, precharge switch 150, and first switch 160 is closed, vehicle load 101 to be put by pre-charge resistance 140
Electricity.
In time interval t2In, cause in circuit in order to avoid being closed at positive switch 120 and negative switch 130
Immediate current spike is produced, battery management unit 170 makes first switch 160 and positive switch 120 still remain open, at this time circuit
In off-position；Then, battery management unit 170 closes precharge switch 150 and negative switch 130, at this time, precharge electricity
Resistance 140 is connected in series with battery pack 110 and vehicle load 101, and pre-charge resistance 140 serves as a part of load, by battery pack 110
Power to vehicle load 101, the voltage V of vehicle load 101 slowly rises, so as to avoid immediate current spike.Work as vehicle load
101 voltage V reaches normal working voltage V0When, positive switch 120 is closed, then disconnects precharge switch 150, at this time preliminary filling
No current in resistance 140, battery pack 110 are in the normal power supply state to vehicle load 101.In time interval t2In, the
One switch 160 is always maintained at disconnecting, and does not heat battery pack 110, the temperature T of battery pack 110 is still equal to environment temperature and less than temperature
Spend threshold value T0。
In time interval t3In, battery management unit 170 remains closed positive switch 120 and negative switch 130, battery
Group 110 is in the normal power supply state to vehicle load 101；Precharge switch 150 remains open, at this time pre-charge resistance 140
Middle no current；The voltage V of vehicle load 101 is maintained at normal working voltage V0.In time interval t3In, first switch 160 is always
Remain open, there is no electric current in pre-charge resistance 140, do not heat battery pack 110, the temperature T of battery pack 110 is still equal to environment
Temperature is simultaneously less than temperature threshold T0。
In time interval t4In, battery management unit 170 remains closed positive switch 120 and negative switch 130, battery
Group 110 is in the normal power supply state to vehicle load 101；Precharge switch 150 remains open；The voltage V of vehicle load 101
It is maintained at normal working voltage V0.When battery management unit 170 detects that the temperature T of battery pack 110 is less than temperature threshold T0, close
First switch 160 is closed, has electric current in pre-charge resistance 140 and produces heat, and heats battery pack 110, the temperature of battery pack 110
T increases to temperature threshold T0。
In time interval t5In, battery management unit 170 remains closed positive switch 120 and negative switch 130, battery
Group 110 is in the normal power supply state to vehicle load 101；Precharge switch 150 remains open；The voltage V of vehicle load 101
It is maintained at normal working voltage V0.When battery management unit 170 detects that the temperature T of battery pack 110 is equal to or more than temperature threshold
Value T0, first switch 160 is disconnected, does not have electric current in pre-charge resistance 140 and no longer produces heat, the temperature T of battery pack 110 is protected
Hold in temperature threshold T0Or it is gradually decrease to temperature threshold T through heat dissipation0。
In time interval t6In, such as when accident occurs for vehicle, battery management unit 170 disconnects the positive switch 120
With the negative switch 130, so as to be powered off between battery pack 110 and vehicle load 101, and the first switch 160 is closed, this
When pre-charge resistance 140 be connected in series with vehicle load 101, discharged by pre-charge resistance 140 for the vehicle load 101,
The voltage of vehicle load 101 is set quickly to be reduced to 0.At this time, pre-charge resistance 140 has electric current and produces heat, and of short duration heating
Battery pack 110, because discharge time is very short, therefore the temperature T of battery pack 110 rises and unobvious.
After electric discharge completely, in time interval t7In, battery management unit 170 disconnect positive switch 120, negative switch 130,
First switch 160 and precharge switch 150.At this time, battery pack 110 is not powered to vehicle load 101, pre-charge resistance 140
In there is no electric current, do not heat battery pack 110, the voltage of vehicle load 101 is 0, and the temperature T of battery pack 110 is gradually decreased down
Environment temperature.Alternatively, battery management unit 170 can close first switch 160 always, pre- until being carried out to battery pack 110
Charging.
In short, the Vehicular battery group management system 100 that embodiments of the present invention provide, there is provided a kind of quick, reliable
With the scheme of safety, the immediate current spike in battery circuit can not only be effectively avoided, extends the service life of each component, also
Battery can be disconnected from vehicle load 101, and effectively the residual charge in vehicle load 101 discharges；Even if battery pack 110
It can not disconnect with vehicle load 101, vehicle load 101 can also be discharged by resistance, this scheme is effectively and reliable；It can control
The temperature of vehicle battery packs 110 processed, controls the heat around 110 each region of battery pack, each battery unit is adjusted respectively respectively
Whole temperature, while the speed that battery pack 110 can be controlled to heat up as needed, are evenly distributed heat, so that all batteries
Unit 111-119 heating has identical temperature；A large amount of amount of localized heat caused by can working battery circuit are managed；
The resistance that heat itself can be produced using after energization is used as heating element, it is not necessary to is arranged to the extra electricity of heater element power supply
Source, simplifies the structure of battery circuit, reduces cost；In addition, the vehicle battery packs management that embodiments of the present invention provide
System 100 is not only suitable for the vehicle using air cooling system, is also applied for the vehicle using liquid cooling system.
Embodiment two
According to the second aspect of the invention, there is provided a kind of Vehicular battery group management system 100, the system 100 include：
Positive switch 120, is arranged between cathode and the vehicle load 101 of the battery pack 110, the positive switch 120 with
The battery pack 110 and the vehicle load 101 are electrically connected in series；Negative switch 130, is arranged on the battery pack 110
Between anode and the vehicle load 101, the negative switch 130 is connected with the battery pack 110 and the vehicle load 101
Ground is electrically connected；Pre-charge resistance 140 and precharge switch 150, the pre-charge resistance 140 and the precharge switch 150 are gone here and there
Connection ground is electrically connected, and the pre-charge resistance 140 and the precharge switch 150 connected are arranged on the battery pack 110
Between vehicle load 101, wherein, the first end of the pre-charge resistance 140 and the first end of the precharge switch 150 connect
Connecing, the second end of the pre-charge resistance 140 is connected between the positive switch 120 and the vehicle load 101, and by institute
The second end for stating precharge switch 150 is connected between the cathode of the positive switch 120 and the battery pack 110；First opens
160 are closed, the first end of the first switch 160 is connected to be established by cable in the first end of the pre-charge resistance 140 and the preliminary filling
Between the first end of pass 150 and the second end of the first switch 160 is connected to the negative switch 130 and the vehicle is born
Carry between 101；Battery management unit 170, for disconnecting the first switch 160 and the positive switch 120, closing described bear
Pole switch 130 and the precharge switch 150, to be pre-charged by the battery pack 110 for the vehicle load 101；In preliminary filling
After the completion of electricity, the battery management unit 170 is used to close the positive switch 120 and the negative switch 130, described in disconnection
Precharge switch 150, to be powered from the battery pack 110 to vehicle load 101；And detected when accident occurs for vehicle it is described just
Whether pole switch 120 and the negative switch 130 can not disconnect；When the positive switch 120 and the negative switch 130 can not
During disconnection, the battery management unit 170 is used to close the first switch 160, is consumed by the pre-charge resistance 140 described
The energy of battery pack 110.
According to the embodiment of the present invention, battery pack 110, are other portions to the high-pressure system of vehicle such as lithium battery group
Point, such as inverter or motor, the power supply of power supply.
As shown in Figure 1, Vehicular battery group management system 100 according to an illustrative embodiment of the invention is opened including cathode
Close 120 and negative switch 130.Positive switch 120 is arranged between cathode and the vehicle load 101 of the battery pack 110,
The positive switch 120 is electrically connected in series with the battery pack 110 and the vehicle load 101.Negative switch 130 is arranged on
Between the anode and the vehicle load 101 of the battery pack 110, the negative switch 130 and the battery pack 110 and described
Vehicle load 101 is electrically connected in series.
System 100 further includes pre-charge resistance 140 and precharge switch 150, the pre-charge resistance 140 and the preliminary filling
Electric switch 150 is electrically connected in series, and the pre-charge resistance 140 and the precharge switch 150 connected are arranged on institute
State between battery pack 110 and vehicle load 101, wherein, first end and the precharge switch of the pre-charge resistance 140
150 first end connection, the second end of the pre-charge resistance 140 are connected to the positive switch 120 and the vehicle load
Between 101, and the second end of the precharge switch 150 is being connected to the positive switch 120 and the battery pack 110 just
Between pole.
System 100 further includes first switch 160, and the first end of the first switch 160 is connected to the pre-charge resistance
Between the first end of 140 first end and the precharge switch 150, and the second end of the first switch 160 is connected to institute
State between negative switch 130 and the vehicle load 101.
System 100 further includes battery management unit 170, for disconnecting the first switch 160 and the positive switch
120th, the negative switch 130 and the precharge switch 150 are closed, with by the battery pack 110 for the vehicle load 101
Precharge.When positive switch 120, negative switch 130 and first switch 160 disconnect, there is no electric current in whole battery circuit.If
Without pre-charge process, and battery pack 110 is directly disposed as normal power supply state to vehicle load 101, need to closed at the same time
Positive switch 120 and negative switch 130 are closed, an immediate current spike can be produced in circuit at this time, seriously affects battery electricity
The service life of each element in road.Therefore, in closure positive switch 120 and negative switch 130 to be born from battery pack 110 to vehicle
Before carrying 101 power supplies, battery management unit 170 first disconnects the first switch 160 and the positive switch 120, makes at circuit
In off-position；Then, battery management unit 170 closes precharge switch 150 and negative switch 130, at this time, pre-charge resistance
140 are connected in series with battery pack 110 and load 101, and a part of load is served as by pre-charge resistance 140, so as to avoid moment electric
Spike is flowed, extends the service life of each element in battery circuit.After the completion of precharge, the battery management unit 170 is used for
The positive switch 120 and the negative switch 130 are closed, disconnects the precharge switch 150, with by the battery pack 110
Power to vehicle load 101, there is no electric current in pre-charge resistance 140 at this time.When accident occurs for vehicle, the battery management list
Member 170 is further adapted for：Detect whether the positive switch 120 and the negative switch 130 disconnect when accident occurs for vehicle；When just
When pole switch 120 and negative switch 130 fail, can not disconnect, battery management unit 170 closes the first switch 160, makes pre-
Charging resistor 140 is electrically connected with battery pack 110 and vehicle load 101, and the energy of battery pack 110 is consumed by pre-charge resistance 140
Amount.
According to the embodiment of the present invention, the battery management unit 170 is used for：When accident occurs for vehicle, car is received
The trouble-signal of control unit or air bag control unit；In response to the trouble-signal, the positive switch 120 is detected
Whether can not be disconnected with the negative switch 130.Alternatively, battery management unit 170 and control unit for vehicle or air bag
Control unit communicates to connect.
According to the embodiment of the present invention, the battery management unit 170 is additionally operable to：From the battery pack 110 to car
After the power supply of load 101, battery pack 110 is heated and is disconnected after the completion of heating by closing the first switch 160 and closed
The first switch 160 closed.After being powered from the battery pack 110 to vehicle load 101, positive switch 120 and anode are opened
130 are closed to close；Battery management unit 170 closes first switch 160, and pre-charge resistance 140, which is powered, produces heat so as to heat
Battery pack 110；After the completion of heating, battery management unit 170 disconnects first switch 160, does not have electricity in pre-charge resistance 140
Stream, no longer produces heat, so as to maintain the temperature of battery pack 110 or the temperature of battery pack 110 is gradually reduced through radiating.It is this
The resistance that mode itself can produce heat using after energization is used as heating element, it is not necessary to is arranged to the extra of heater element power supply
Power supply, simplify the structure of battery circuit, reduce cost.
According to the embodiment of the present invention, the battery management unit 170 is additionally operable to：Measure the temperature of the battery pack 110
Degree；Measured temperature is compared with predetermined temperature threshold；When measured temperature is less than the temperature threshold,
Close the first switch 160；And when measured temperature is equal to or more than the temperature threshold, disconnect the described of closure
First switch 160, to control the temperature of the battery pack 110.As shown in Figure 1, battery management unit 170 closes positive switch
120 and negative switch 130 to be powered from battery pack 110 to vehicle load 101；Battery management unit 170 measures battery pack 110
Temperature T；By the temperature T of measured battery pack 110 and predetermined temperature threshold T0Compare, alternatively, predefine
Temperature threshold T0Temperature when can be 110 work efficiency highest of battery pack.Alternatively, the battery pack 110 detected
Temperature T can be the temperature that is directly measured by a temperature sensor or temperature that one group of temperature sensor detects
The average value of degree or 110 temperature of battery pack drawn according to other algorithms.When measured temperature T is less than temperature threshold T0, electricity
Pond administrative unit 170 closes first switch 160, then first switch 160 is electric in parallel with battery pack 110 by pre-charge resistance 140
Connection, pre-charge resistance 140 produces heat after being powered, so as to heat battery pack 110.When measured temperature T is equal to or more than
Temperature threshold T0, the first switch 160 of the disconnection closure of battery management unit 170, then do not have electric current, no in pre-charge resistance 140
Heat is produced again, so that the temperature T of battery pack 110 is maintained temperature threshold T0Or make the temperature T of battery pack 110 through heat dissipation by
Gradually it is reduced to temperature threshold T0.The resistance that this mode itself can produce heat using after energization is used as heating element, it is not necessary to
The extra power supply of heater element power supply is arranged to, the structure of battery circuit is simplified, reduces cost.
The foregoing description of Vehicular battery group management system 100 in embodiment one can also be applied to according to the present invention
Vehicular battery group management system 100 in embodiment two, for brief purpose, details are not described herein.
In short, the Vehicular battery group management system 100 that embodiments of the present invention provide, there is provided a kind of quick, reliable
With the scheme of safety, the immediate current spike in battery circuit can not only be effectively avoided, extends the service life of each component, also
Battery can be disconnected from vehicle load 101, and effectively the residual charge in vehicle load 101 discharges；Even if battery pack 110
It can not disconnect with vehicle load 101, vehicle load 101 can also be discharged by resistance, this scheme is effectively and reliable；It can control
The temperature of vehicle battery packs 110 processed, controls the heat around 110 each region of battery pack respectively, while can control as needed
The speed that battery pack 110 heats up, can be managed a large amount of amount of localized heat caused by battery circuit work；After energization
The resistance of heat itself can be produced as heating element, it is not necessary to be arranged to the extra power supply of heater element power supply, simplify
The structure of battery circuit, reduces cost.
Embodiment three
According to the third aspect of the invention we, corresponding to vehicle according to the invention battery pack pipe as described in embodiment 1
A kind of reason system 100, there is provided Vehicular battery group management method 200.
Fig. 4 shows the flow chart of the Vehicular battery group management method 200 of illustrative embodiments according to the present invention.
As shown in figure 4, method 200 includes：Step S210：Between the cathode of the battery pack 110 and vehicle load 101
It is disposed in series positive switch 120；Step S220：Set in series between the anode of the battery pack 110 and vehicle load 101
Put negative switch 130；Step S230：The preliminary filling being electrically connected in series is set between the battery pack 110 and vehicle load 101
Resistance 140 and precharge switch 150, wherein, the first end of the pre-charge resistance 140 and the precharge switch 150
First end connects, the second end of the pre-charge resistance 140 be connected to the positive switch 120 and the vehicle load 101 it
Between, and the second end of the precharge switch 150 is connected between the cathode of the positive switch 120 and the battery pack 110；
Step S240：One first switch 160 is set, the first end of the first switch 160 is connected to the pre-charge resistance 140
It is connected between the first end of first end and the precharge switch 150 and by the second end of the first switch 160 described negative
Between pole switch 130 and the vehicle load 101；Step S250：Disconnect the first switch 160 and the positive switch 120,
Close the negative switch 130 and the precharge switch 150, with by the battery pack 110 for 101 preliminary filling of vehicle load
Electricity；After the completion of precharge, the positive switch 120 and the negative switch 130 are closed, disconnects the precharge switch 150,
To be powered from the battery pack 110 to vehicle load 101；And when accident occurs for vehicle, disconnect the positive switch 120 and institute
Negative switch 130 is stated, and closes the first switch 160, to be put by the pre-charge resistance 140 for the vehicle load 101
Electricity.
According to an illustrative embodiment of the invention, wherein closing the positive switch 120 and institute after the completion of precharge
Negative switch 130 is stated, disconnects the precharge switch 150, after being powered from the battery pack 110 to vehicle load 101, institute
Method 200 is stated to further include：Battery pack 110 is heated and is disconnected after the completion of heating by closing the first switch 160 and closed
The first switch 160 closed.
According to an illustrative embodiment of the invention, by closing or disconnecting the first switch 160, the battery is controlled
The temperature of group 110 includes：Measure the temperature of the battery pack 110；By measured temperature and predetermined temperature threshold phase
Compare；When measured temperature is less than the temperature threshold, the first switch 160 is closed；And when measured temperature
During equal to or more than the temperature threshold, the first switch 160 of closure is disconnected, to control the temperature of the battery pack 110.
According to an illustrative embodiment of the invention, wherein the battery pack 110 is the multiple batteries being electrically connected in series
Unit 111-119, the method 200 further include：The pre-charge resistance 140 is arranged to and the multiple battery unit 111-
The distance between each battery unit in 119 is equal.
According to an illustrative embodiment of the invention, wherein the battery pack 110 is radiated by the air cooling system of the vehicle；
And the method 200 further includes：The pre-charge resistance 140 is arranged at the air intake of the air cooling system.
According to an illustrative embodiment of the invention, wherein the battery pack 110 includes the multiple electricity being electrically connected in series
Pool unit 111-119, the pre-charge resistance 140 are several pre-charge resistances 140 being electrically connected in series, the method
200 further include：Several described pre-charge resistances 140 are evenly distributed in around the multiple battery unit 111-119.
According to an illustrative embodiment of the invention, wherein the multiple battery unit 111-119 by the vehicle liquid
Cooling system radiates；And the method 200 further includes：Several described pre-charge resistances 140 are abutted into the multiple battery list
First 111-119.
According to an illustrative embodiment of the invention, the method 200 further includes：Will several described pre-charge resistances
Each pre-charge resistance 140 in 140 is electrically connected in parallel with a second switch respectively；And wherein by closing or disconnecting institute
First switch 160 is stated, controlling the temperature of the battery pack 110 includes：Close the first switch 160；It is respectively closed or disconnects
Each in several described second switch 181-184, with control in the multiple battery unit 111-119 each
Temperature.
According to an illustrative embodiment of the invention, wherein when accident occurs for vehicle, 120 He of positive switch is disconnected
The negative switch 130, and the first switch 160 is closed to include for the vehicle load 101 electric discharge：Thing occurs in vehicle
Therefore when, the trouble-signal of reception control unit for vehicle or air bag control unit；In response to the trouble-signal, described in disconnection
Positive switch 120 and the negative switch 130, and the first switch 160 is closed to discharge for the vehicle load 101.
According to an illustrative embodiment of the invention, the method 200 further includes：When accident occurs for vehicle, when described
When positive switch 120 and the negative switch 130 can not disconnect, disconnect the precharge switch 150 and closure described first is opened
160 are closed, the energy of the battery pack 110 is consumed by the pre-charge resistance 140.
According to an illustrative embodiment of the invention, the method 200 further includes：In 140 peripheral hardware of pre-charge resistance
Put metal-back.
According to an illustrative embodiment of the invention, the method 200 further includes：The pre-charge resistance 140 is set
For prism-shaped, cylindric or sheet.
Car according to the present invention can also be applied to the foregoing description of Vehicular battery group management system 100 in embodiment one
The method 200 of battery set management, for brief purpose, details are not described herein.
A kind of in short, Vehicular battery group management method that embodiments of the present invention provide, there is provided quick, reliable and peace
Full scheme, can not only effectively avoid the immediate current spike in battery circuit, extend the service life of each component, moreover it is possible to will
Battery is disconnected from vehicle load 101, and effectively the residual charge in vehicle load 101 discharges；Even if battery pack 110 and car
Load 101 can not disconnect, and vehicle load 101 can also be discharged by resistance, this scheme is effectively and reliable；Car can be controlled
The temperature of battery pack 110, controls the heat around 110 each region of battery pack, each battery unit 111-119 is distinguished respectively
Temperature is adjusted, while the speed that battery pack 110 can be controlled to heat up as needed, it is evenly distributed heat, so that all electricity
Pool unit 111-119 heating has identical temperature；A large amount of amount of localized heat caused by can working battery circuit carry out pipe
Reason；The resistance that heat itself can be produced using after energization is used as heating element, it is not necessary to is arranged to the extra of heater element power supply
Power supply, simplify the structure of battery circuit, reduce cost；In addition, the vehicle battery packs that embodiments of the present invention provide
Management system 100 and method are not only suitable for the vehicle using air cooling system, are also applied for the vehicle using liquid cooling system.
Embodiment four
According to the fourth aspect of the invention, corresponding to vehicle according to the invention battery pack pipe as described in embodiment 2
A kind of reason system 100, there is provided Vehicular battery group management method 300.
Fig. 5 shows the flow chart of the Vehicular battery group management method 300 of illustrative embodiments according to the present invention.
As shown in figure 5, method 300 includes：Step S310：Between the cathode of the battery pack 110 and vehicle load 101
It is disposed in series positive switch 120；Step S320：Set in series between the anode of the battery pack 110 and vehicle load 101
Put negative switch 130；Step S330：Setting one is electrically connected in series pre- between the battery pack 110 and vehicle load 101
Charging resistor 140 and precharge switch 150, wherein, the first end of the pre-charge resistance 140 and the precharge switch 150
First end connection, the second end of the pre-charge resistance 140 is connected to the positive switch 120 and the vehicle load 101
Between, and the second end of the precharge switch 150 be connected to the positive switch 120 and the battery pack 110 cathode it
Between；Step S340：One first switch 160 is set, the first end of first switch 160 is connected in the pre-charge resistance 140
First end and the precharge switch 150 first end between and the second end of the first switch 160 is connected to described
Between negative switch 130 and the vehicle load 101；Step S350：Disconnect the first switch 160 and the positive switch
120th, the negative switch 130 and the precharge switch 150 are closed, with by the battery pack 110 for the vehicle load 101
Precharge；After the completion of precharge, the positive switch 120 and the negative switch 130 are closed, disconnects the precharge switch
150, to be powered from the battery pack 110 to vehicle load 101；And the positive switch 120 is detected when accident occurs for vehicle
Whether can not be disconnected with the negative switch 130；When the positive switch 120 and the negative switch 130 can not disconnect, close
The first switch 160 is closed, the energy of the battery pack 110 is consumed by the pre-charge resistance 140.
According to an illustrative embodiment of the invention, wherein detecting 120 He of positive switch when accident occurs for vehicle
The negative switch 130 whether can not disconnect including：When accident occurs for vehicle, control unit for vehicle or air bag control are received
The trouble-signal of unit processed；In response to the trouble-signal, whether the positive switch 120 and the negative switch 130 are detected
It can not disconnect.
According to an illustrative embodiment of the invention, wherein closing the positive switch 120 and institute after the completion of precharge
Negative switch 130 is stated, disconnects the precharge switch, it is described after being powered from the battery pack 110 to vehicle load 101
Method further includes：The institute of closure is heated and disconnected after the completion of heating to battery pack 110 by closing the first switch 160
State first switch 160.
According to an illustrative embodiment of the invention, wherein by closing or disconnecting the first switch 160, described in control
The temperature of battery pack 110 includes：Measure the temperature of the battery pack 110；By measured temperature and predetermined temperature threshold
Value compares；When measured temperature is less than the temperature threshold, the first switch 160 is closed；And when measured
When temperature is equal to or more than the temperature threshold, the first switch 160 of closure is disconnected, to control the battery pack 110
Temperature.
Car according to the present invention can also be applied to the foregoing description of Vehicular battery group management system 100 in embodiment two
The method 300 of battery set management, for brief purpose, details are not described herein.
A kind of in short, Vehicular battery group management method that embodiments of the present invention provide, there is provided quick, reliable and peace
Full scheme, can not only effectively avoid the immediate current spike in battery circuit, extend the service life of each component, moreover it is possible to will
Battery is disconnected from vehicle load 101, and effectively the residual charge in vehicle load 101 discharges；Even if battery pack 110 and car
Load 101 can not disconnect, and vehicle load 101 can also be discharged by resistance, this scheme is effectively and reliable；Car can be controlled
The temperature of battery pack 110, controls the heat around 110 each region of battery pack respectively, while can control battery as needed
The speed of the heating of group 110, can be managed a large amount of amount of localized heat caused by battery circuit work；Using after energization itself
The resistance of heat can be produced as heating element, it is not necessary to be arranged to the extra power supply of heater element power supply, simplify battery
The structure of circuit, reduces cost.
In the present specification, substantial amounts of detail is illustrated.It will be appreciated, however, that embodiments of the present invention can be with
Implement in the case of these no details.In some embodiments, be not been shown in detail known method, structure and
Technology, so as not to make reader obscure the understanding to the principle of this specification.
It will be understood by those skilled in the art that the module in the device in each embodiment can be carried out adaptively
Change, and they are arranged in one or more devices different from the embodiment.Except feature or processing mutually row
Outside the situation of reprimand, any combinations can be used, all steps or any dress to any method disclosed in this specification
All modules put are combined.Unless expressly stated otherwise, each feature disclosed in this specification can be by offer phase
Same, equivalent or similar purpose alternative features replace.
It should be noted that the present invention will be described rather than limits the invention for the above embodiment, and ability
Field technique personnel can design various alternate embodiments in the case of without departing from scope of the following claims.In right
In claim, the sequence of feature is not meant to any particular order of feature, and especially, is respectively walked in claim to a method
Rapid order is not meant to that these steps must sequentially be performed according to this.On the contrary, these steps can be with any appropriate
Order perform.In detail in the claims, any reference marker in bracket should not be understood as to the limit to claim
System.Term " comprising " or "comprising" do not exclude the presence of module or step not listed in the claims.Positioned at module or step it
Preceding term "a" or "an" does not exclude the presence of multiple such modules or step.Term " first ", " second " and "
Three " etc. use does not indicate that any order, these terms can be construed to title.
Claims (28)
- A kind of 1. Vehicular battery group management system, it is characterised in that the system comprises：Positive switch, is arranged between cathode and the vehicle load of the battery pack, the positive switch and the battery pack and The vehicle load is electrically connected in series；Negative switch, is arranged between anode and the vehicle load of the battery pack, the negative switch and the battery pack and The vehicle load is electrically connected in series；Pre-charge resistance and precharge switch, the pre-charge resistance and the precharge switch are electrically connected in series, and are connected The pre-charge resistance and the precharge switch be arranged between the battery pack and vehicle load, wherein, the preliminary filling The first end of resistance is connected with the first end of the precharge switch, the second end of the pre-charge resistance be connected to it is described just Pole is switched between the vehicle load, and the second end of the precharge switch is connected to the positive switch and the electricity Between the cathode of pond group；First switch, the first end of the first switch are connected to the first end of the pre-charge resistance and the precharge switch First end between, and the second end of the first switch is connected between the negative switch and the vehicle load；Battery management unit, for disconnecting the first switch and the positive switch, the closure negative switch and described pre- Charge switch, to be pre-charged by the battery pack as the vehicle load；After the completion of precharge, the battery management unit is used In closing the positive switch and the negative switch, the precharge switch is disconnected, with from the battery pack to vehicle load Power supply；And when accident occurs for vehicle, the battery management unit is used to disconnect the positive switch and the negative switch, and The first switch is closed, to be discharged by the pre-charge resistance as the vehicle load；Wherein described battery management unit is additionally operable to：After powering from the battery pack to vehicle load, battery pack is heated and heated by closing the first switch After the completion of disconnect the first switch of closure；Wherein described battery management unit is additionally operable to：Measure the temperature of the battery pack；Measured temperature is compared with predetermined temperature threshold, the predetermined temperature threshold is the battery Temperature during group work efficiency highest；When measured temperature is less than the temperature threshold, the first switch is closed；And when measured temperature is equal to Or during more than the temperature threshold, the first switch of closure is disconnected, to control the temperature of the battery pack.
- 2. the system as claimed in claim 1, wherein the battery pack is the multiple battery units being electrically connected in series, it is described pre- It is equal that charging resistor is arranged to the distance between each battery unit in the multiple battery unit.
- 3. the system as claimed in claim 1, wherein the battery pack is radiated by the air cooling system of the vehicle；It is and described pre- Charging resistor is arranged at the air intake of the air cooling system.
- 4. the system as claimed in claim 1, wherein the battery pack includes the multiple battery units being electrically connected in series, it is described Pre-charge resistance is several pre-charge resistances being electrically connected in series, several described pre-charge resistances are evenly distributed in described Around multiple battery units.
- 5. system as claimed in claim 4, wherein the multiple battery unit is radiated by the liquid cooling system of the vehicle；It is described Several pre-charge resistances abut the multiple battery unit.
- 6. system as described in claim 4 or 5, further includes：Several second switches, in several described second switches each respectively with several described pre-charge resistances Each pre-charge resistance is electrically connected in parallel；And the battery management unit is additionally operable to：Close the first switch；Each in several described second switches is respectively closed or disconnects, it is each in the multiple battery unit to control A temperature.
- 7. the system as claimed in claim 1, wherein the battery management unit is used for：When accident occurs for vehicle, the trouble-signal of control unit for vehicle or air bag control unit is received；In response to the trouble-signal, disconnect the positive switch and the negative switch, and close the first switch with by The pre-charge resistance discharges for the vehicle load.
- 8. the system as claimed in claim 1, wherein the battery management unit is additionally operable to：When accident occurs for vehicle, when the positive switch and the negative switch can not disconnect, disconnect the preliminary filling and establish by cable Close and close the first switch, the energy of the battery pack is consumed by the pre-charge resistance.
- 9. the system as claimed in claim 1, whereinMetal-back is provided outside in the pre-charge resistance.
- 10. the system as claimed in claim 1, further includes：The pre-charge resistance is arranged to prism-shaped, cylindric or sheet.
- A kind of 11. Vehicular battery group management system, it is characterised in that the system comprises：Positive switch, is arranged between the cathode of the battery pack and the vehicle load, the positive switch and the battery Group and the vehicle load are electrically connected in series；Negative switch, is arranged between the anode of the battery pack and the vehicle load, the negative switch and the battery Group and the vehicle load are electrically connected in series；Pre-charge resistance and precharge switch, the pre-charge resistance and the precharge switch are electrically connected in series, and are gone here and there The pre-charge resistance and the precharge switch of connection are arranged between the battery pack and vehicle load, wherein, it is described pre- The first end of charging resistor is connected with the first end of the precharge switch, and the second end of the pre-charge resistance is connected to described Between positive switch and the vehicle load, and the second end of the precharge switch is connected to the positive switch and described Between the cathode of battery pack；First switch, the first end of the first switch is connected to be established by cable in the first end of the pre-charge resistance and the preliminary filling It is connected between the first end of pass and by the second end of the first switch between the negative switch and the vehicle load；Battery management unit, for disconnecting the first switch and the positive switch, the closure negative switch and described pre- Charge switch, to be pre-charged by the battery pack as the vehicle load；After the completion of precharge, the battery management unit is used In closing the positive switch and the negative switch, the precharge switch is disconnected, with from the battery pack to vehicle load Power supply；And detect whether the positive switch and the negative switch can not disconnect when accident occurs for vehicle；When the cathode When switch and the negative switch can not disconnect, the battery management unit is used to close the first switch, by the preliminary filling The energy of battery pack described in electric resistance consumption；Wherein described battery management unit is additionally operable to：After powering from the battery pack to vehicle load, battery pack is heated and heated by closing the first switch After the completion of disconnect the first switch of closure；Wherein described battery management unit is additionally operable to：Measure the temperature of the battery pack；Measured temperature is compared with predetermined temperature threshold, the predetermined temperature threshold is the battery Temperature during group work efficiency highest；When measured temperature is less than the temperature threshold, the first switch is closed；And when measured temperature is equal to Or during more than the temperature threshold, the first switch of closure is disconnected, to control the temperature of the battery pack.
- 12. system as claimed in claim 11, wherein the battery management unit is used for：When accident occurs for vehicle, the trouble-signal of control unit for vehicle or air bag control unit is received；In response to the trouble-signal, detect whether the positive switch and the negative switch can not disconnect.
- A kind of 13. Vehicular battery group management method, it is characterised in that the described method includes：Positive switch is disposed in series between the cathode of the battery pack and vehicle load；Negative switch is disposed in series between the anode of the battery pack and vehicle load；The pre-charge resistance being electrically connected in series and precharge switch are set between the battery pack and vehicle load, wherein, The first end of the pre-charge resistance is connected with the first end of the precharge switch, the second end connection of the pre-charge resistance Between the positive switch and the vehicle load, and the second end of the precharge switch be connected to the positive switch and Between the cathode of the battery pack；One first switch is set, the first end of the first switch is connected to the first end of the pre-charge resistance and described pre- The negative switch and the vehicle load are connected between the first end of charge switch and by the second end of the first switch Between；Disconnect the first switch and the positive switch, close the negative switch and the precharge switch, with by described Battery pack is pre-charged for the vehicle load；After the completion of precharge, the positive switch and the negative switch are closed, is disconnected The precharge switch, to be powered from the battery pack to vehicle load；And when accident occurs for vehicle, disconnect the cathode and open Pass and the negative switch, and the first switch is closed, to be discharged by the pre-charge resistance as the vehicle load.
- 14. method as claimed in claim 13, wherein closing the positive switch after the completion of precharge and the anode is opened Close, disconnect the precharge switch, after powering from the battery pack to vehicle load, the method further includes：The first switch of closure is heated and disconnected after the completion of heating to battery pack by closing the first switch.
- 15. method as claimed in claim 14, wherein by closing or disconnecting the first switch, controls the battery pack Temperature includes：Measure the temperature of the battery pack；Measured temperature is compared with predetermined temperature threshold；When measured temperature is less than the temperature threshold, the first switch is closed；And when measured temperature is equal to Or during more than the temperature threshold, the first switch of closure is disconnected, to control the temperature of the battery pack.
- 16. method as claimed in claim 14, wherein the battery pack is the multiple battery units being electrically connected in series, it is described Method further includes：It is equal that the pre-charge resistance is arranged to the distance between each battery unit in the multiple battery unit.
- 17. method as claimed in claim 14, wherein the battery pack is radiated by the air cooling system of the vehicle；It is and described Method further includes：The pre-charge resistance is arranged at the air intake of the air cooling system.
- 18. method as claimed in claim 14, wherein the battery pack includes the multiple battery units being electrically connected in series, institute It is several pre-charge resistances being electrically connected in series to state pre-charge resistance, and the method further includes：Several described pre-charge resistances are evenly distributed in around the multiple battery unit.
- 19. method as claimed in claim 18, wherein the multiple battery unit is radiated by the liquid cooling system of the vehicle；And And the method further includes：Several described pre-charge resistances are abutted into the multiple battery unit.
- 20. the method as described in claim 18 or 19, further includes：Each pre-charge resistance in several described pre-charge resistances is electrically connected in parallel with a second switch respectively；AndWherein by closing or disconnecting the first switch, controlling the temperature of the battery pack includes：Close the first switch；Each in several described second switches is respectively closed or disconnects, it is each in the multiple battery unit to control A temperature.
- 21. method as claimed in claim 13, wherein when accident occurs for vehicle, disconnects the positive switch and the anode Switch, and the first switch is closed to include for vehicle load electric discharge：When accident occurs for vehicle, the trouble-signal of control unit for vehicle or air bag control unit is received；In response to the trouble-signal, disconnect the positive switch and the negative switch, and close the first switch with by The pre-charge resistance discharges for the vehicle load.
- 22. method as claimed in claim 13, further includes：When accident occurs for vehicle, when the positive switch and the negative switch can not disconnect, disconnect the preliminary filling and establish by cable Close and close the first switch, the energy of the battery pack is consumed by the pre-charge resistance.
- 23. method as claimed in claim 13, further includes：Metal-back is set outside the pre-charge resistance.
- 24. method as claimed in claim 13, further includes：The pre-charge resistance is arranged to prism-shaped, cylindric or sheet.
- A kind of 25. Vehicular battery group management method, it is characterised in that the described method includes：Positive switch is disposed in series between the cathode of the battery pack and vehicle load；Negative switch is disposed in series between the anode of the battery pack and vehicle load；One pre-charge resistance being electrically connected in series and precharge switch are set between the battery pack and vehicle load, its In, the first end of the pre-charge resistance is connected with the first end of the precharge switch, the second end of the pre-charge resistance It is connected between the positive switch and the vehicle load, and the second end of the precharge switch is connected to the cathode and opens Close between the cathode of the battery pack；One first switch is set, the first end of first switch is connected to first end and the preliminary filling in the pre-charge resistance Between the first end of electric switch and by the second end of the first switch be connected to the negative switch and the vehicle load it Between；Disconnect the first switch and the positive switch, close the negative switch and the precharge switch, with by described Battery pack is pre-charged for the vehicle load；After the completion of precharge, the positive switch and the negative switch are closed, is disconnected The precharge switch, to be powered from the battery pack to vehicle load；And the cathode is detected when accident occurs for vehicle and is opened Close and whether the negative switch can not disconnect；When the positive switch and the negative switch can not disconnect, described in closure First switch, the energy of the battery pack is consumed by the pre-charge resistance.
- 26. method as claimed in claim 25, wherein detecting the positive switch and the anode when accident occurs for vehicle Switch whether can not disconnect including：When accident occurs for vehicle, the trouble-signal of control unit for vehicle or air bag control unit is received；In response to the trouble-signal, detect whether the positive switch and the negative switch can not disconnect.
- 27. method as claimed in claim 25, wherein closing the positive switch after the completion of precharge and the anode is opened Close, disconnect the precharge switch, after powering from the battery pack to vehicle load, the method further includes：The first switch of closure is heated and disconnected after the completion of heating to battery pack by closing the first switch.
- 28. method as claimed in claim 27, wherein by closing or disconnecting the first switch, controls the battery pack Temperature includes：Measure the temperature of the battery pack；Measured temperature is compared with predetermined temperature threshold；When measured temperature is less than the temperature threshold, the first switch is closed；And when measured temperature is equal to Or during more than the temperature threshold, the first switch of closure is disconnected, to control the temperature of the battery pack.
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| CN201410341273.2A CN105336994B (en) | 2014-07-17 | 2014-07-17 | For Vehicular battery group management system and method |
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| CN201410341273.2A CN105336994B (en) | 2014-07-17 | 2014-07-17 | For Vehicular battery group management system and method |
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