CN104709091B - The upper electric and lower method for electrically of pure electric vehicle - Google Patents
The upper electric and lower method for electrically of pure electric vehicle Download PDFInfo
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- CN104709091B CN104709091B CN201310684620.7A CN201310684620A CN104709091B CN 104709091 B CN104709091 B CN 104709091B CN 201310684620 A CN201310684620 A CN 201310684620A CN 104709091 B CN104709091 B CN 104709091B
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The invention discloses a kind of upper electric and lower method for electrically of pure electric vehicle, the powering method includes：Under drive mode：Close to enter line precharge according to electricity instruction control pre-charge contactor on high pressure；Judge that whether the precharge completes within the first threshold time, controls positive contact device closure within the first threshold time in the case of completing precharge；Judge whether the positive contact device is closed, the pre-charge contactor is disconnected in the case where the positive contact device is closed；And complete power up.The upper electric and lower method for electrically of the pure electric vehicle that the present invention is provided is detected to the failure being likely to occur in electric and lower electric process on pure electric vehicle, carry out failure in case of a failure to report, thus entire car controller can control whole power up according to each fault message for reporting, so that electric on pure electric vehicle and lower electric process is safer.
Description
Technical field
The present invention relates to electric motor car, in particular it relates under a kind of powering method of pure electric vehicle and a kind of pure electric vehicle
Method for electrically.
Background technology
Pure electric vehicle is generally using the electrokinetic cell of more than 300V voltages, at such high pressures, the pure electric vehicle of safety now
Upper electric and lower method for electrically is particularly important.The upper electric and lower method for electrically of current pure electric vehicle does not account for electric with on pure electric vehicle
The numerous failures being likely to occur in electric process, with great potential safety hazard.
The content of the invention
It is an object of the invention to provide the lower method for electrically of a kind of powering method of pure electric vehicle and a kind of pure electric vehicle, described
The failure that upper electric and lower method for electrically is likely to occur in having fully taken into account electric on pure electric vehicle and lower electric process, and to these failures
Processed rapidly, make electric on pure electric vehicle and lower electric process safer.
To achieve these goals, the powering method of the pure electric vehicle that the present invention is provided includes：Under drive mode：According to
On high pressure, electricity instruction control pre-charge contactor closes to enter line precharge；Whether complete judge to be pre-charged within the first threshold time
Into in the case of precharge is completed within the first threshold time, control positive contact device is closed；Judge positive contact device whether
Be closed, pre-charge contactor is disconnected in the case where positive contact device is closed；And complete power up.
Preferably, the scope of the first threshold time is 1s-3s.
Wherein, in the case of precharge not being completed within the first threshold time, stop precharge, while carrying out in failure
Report.
Wherein, in the case where positive contact device is not closed, pre-charge contactor is disconnected, while carry out failure reporting.
Preferably, the powering method also includes whether detection high-tension battery has charging wire to access, in high-tension battery without charging
Line enters drive mode in the case of accessing；And have charging wire to enter charge mode in the case of accessing in high-tension battery.
The lower method for electrically of the pure electric vehicle that the present invention is provided includes：Electric machine controller three-phase is carried out according to electricity instruction under high pressure
Short-circuit process；Judge whether three-phase shortcircuit process completes within the Second Threshold time, three-phase is completed within the Second Threshold time short
In the case of passing by journey, Insulation monitoring is carried out；Insulation fault being judged whether, in the case where there is no insulation fault, being held
Electricity under horizontal high voltage；Judge whether positive contact device and cathode contact device have at least one to disconnect, connect in positive contact device and negative pole
In the case that tentaculum has at least one disconnection, active discharge is performed；Perform electricity under low pressure；And complete lower electric process.
Preferably, the scope of Second Threshold time is 1s-2s.
Wherein, in the case of the three-phase shortcircuit process not being completed within the Second Threshold time, perform electricity under high pressure, while
Carry out failure to report.
Wherein, in the case where there is insulation fault, electricity under high pressure is performed, while carry out failure reporting.
Wherein, in the case where positive contact device and cathode contact device do not disconnect, electricity under low pressure is performed, while carrying out event
Barrier is reported.
The upper electric and lower method for electrically of the pure electric vehicle provided according to the present invention, in pure electric vehicle power up below execution
Committed step：1）Whether detection high-tension battery has charging wire to access（Enter to enter a profession in the case where high-tension battery is without charging wire access
Car pattern, has charging wire to enter charge mode in the case of accessing in high-tension battery）；2）In the case of into drive mode,
Control pre-charge contactor is closed to enter line precharge, is judged in the first threshold time（1s-2s, the present invention are preferably but not limited to
2s）Whether interior precharge completes, and controls positive contact device closure within the first threshold time in the case of completing precharge, the
Stop precharge in the case of precharge is not completed in one threshold time, while carry out failure reporting；3）Judge positive contact device
Whether be closed, pre-charge contactor is disconnected in the case where positive contact device is closed, do not closed in positive contact device
Pre-charge contactor is disconnected in the case of conjunction, while carry out failure reporting.
Following committed step is performed under pure electric vehicle in electric process：1）Electric machine controller is carried out according to electricity instruction under high pressure
Three-phase shortcircuit process, judged in the Second Threshold time（1s-2s, the present invention are preferably but not limited to 1s）Whether interior three-phase shortcircuit process
Complete, three-phase shortcircuit process carries out Insulation monitoring in the case of completing within the Second Threshold time, the institute within the Second Threshold time
State and in the case that three-phase shortcircuit process is not completed, perform electricity under high pressure, while carry out failure reporting；2）Judge whether insulation
Failure, performs electricity under high pressure in the case where there is no insulation fault, and electricity under high pressure is performed in the case where there is insulation fault
While carry out failure and report；3）Judge whether positive contact device and cathode contact device have at least one to disconnect, in positive contact
In the case that device and cathode contact device have at least one disconnection, active discharge is performed, and low pressure is performed after the completion of active discharge
Lower electricity, performs electricity under low pressure, while carry out failure reporting in the case where positive contact device and cathode contact device do not disconnect.
The upper electric and lower method for electrically of the pure electric vehicle that the present invention is provided is to going out in electric and lower electric process on pure electric vehicle
Existing failure is detected that carrying out failure in case of a failure and reporting, thus entire car controller can be according on each
The fault message of report controls whole power up, so that electric on pure electric vehicle and lower electric process is safer.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Description of the drawings
Accompanying drawing is, for providing a further understanding of the present invention, and to constitute the part of description, with following tool
Body embodiment is used for explaining the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the flow chart of the powering method of the pure electric vehicle that the present invention is provided；And
Fig. 2 is the flow chart of the lower method for electrically of the pure electric vehicle that the present invention is provided.
Specific embodiment
The specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that this place is retouched
The specific embodiment stated is merely to illustrate and explains the present invention, is not limited to the present invention.
Fig. 1 is the flow chart of the powering method of the pure electric vehicle that the present invention is provided.As shown in figure 1, under drive mode：Root
Close to enter line precharge according to electricity instruction control pre-charge contactor on high pressure；Whether judge to be pre-charged within the first threshold time
Complete, in the case of precharge is completed within the first threshold time, control positive contact device closure, it is pre- within the first threshold time
Charging stops precharge in the case of not yet completing, while carry out failure reporting；Judge whether positive contact device is closed,
Positive contact device disconnects pre-charge contactor in the case of being closed, disconnects in the case where positive contact device is not closed pre-
Charging contactor, while carry out failure reporting；And complete power up.
The first threshold time can be configured according to the needs of practical operation, it is preferable that during the first threshold
Between scope be 1s-3s, it is highly preferred that the first threshold time be 2s.
Technology according to the present invention scheme, when battery management system receives electricity instruction on high pressure, controls preliminary filling first
Whether electric contactor closure is then judged to be pre-charged in 2s and is completed entering line precharge（For example when high-tension battery voltage reaches
The 85% of total voltage, it is determined that precharge is completed.Preferably, when high-tension battery voltage reaches the 90% of total voltage, it is determined that preliminary filling
Electricity is completed）If precharge in the first threshold time is completed, battery management system control positive contact device closure, if the
Precharge in one threshold time is not yet completed, then stop precharge, while reporting fault stopping connecting high pressure；In battery management
After system control positive contact device closure, judge whether positive contact device is closed, be not closed in positive contact device
In the case of, battery management system judges positive contact device connection failure, and disconnects pre-charge contactor, carries out failure and report, together
When stop connection high pressure, in the case where positive contact device is closed, battery management system disconnect pre-charge contactor, afterwards
Complete power up.
Powering method mentioned above is carried out under the drive mode of pure electric vehicle, if pure electric vehicle is in charging mould
Formula, then need not perform above-mentioned detecting step.It is therefore preferred that carrying out above-mentioned before electric step, each controller need to be carried out often
The self-inspection of rule, and by self-inspection information reporting entire car controller, in the case where battery management system is not detected and is out of order, this
The powering method of bright offer also includes whether detection high-tension battery has charging wire to access, in the feelings that high-tension battery is accessed without charging wire
Drive mode is entered under condition；And have charging wire to enter charge mode in the case of accessing in high-tension battery.
Technology according to the present invention scheme, when into charge mode, battery management system controls cathode contact device first
Closure, and judge whether cathode contact device closes, in the case where cathode contact device is closed, battery management system control precharge
Catalyst is closed to enter line precharge, is carried out failure in the case where cathode contact device is not closed and is reported, and stops connecting high pressure；
Then judge in the first threshold time（Such as 2s）Whether interior precharge completes（For example when high-tension battery voltage reaches total voltage
85%, it is determined that precharge is completed.Preferably, when high-tension battery voltage reaches the 90% of total voltage, it is determined that precharge is completed）,
It is pre-charged within the first threshold time in the case of completing, battery management system control positive contact device closure, in first threshold
Then stop precharge in the case that precharge is not yet completed in time, while reporting fault stopping connecting high pressure；In cell tube
After reason system control positive contact device closure, judge whether positive contact device is closed, be closed in positive contact device
In the case of, battery management system disconnects pre-charge contactor, and controls charging contactor closure, is not closed in positive contact device
In the case of conjunction, battery management system judges positive contact device connection failure, and disconnects pre-charge contactor, carries out in failure
Report, while stop connection high pressure；Whether last battery management system detection high-tension battery temperature is too low, if high-tension battery temperature
Too low, then battery control system control high-tension battery begins to warm up, if high-tension battery temperature is normal, is charged normal.
Under drive mode, the powering method that the present invention is provided also needs to carry out a series of following previous steps, full-vehicle control
Device could send electricity on high pressure and instruct to battery management system.The previous step includes：1）Battery management system control first
Cathode contact device is closed, and judges whether cathode contact device closes, and is carried out in failure in the case where cathode contact device is not closed
Report, and stop connecting high pressure, and next step is carried out in the case where cathode contact device is closed；2）Then entire car controller according to
The oneself state information of each controller report judges each controller with the presence or absence of failure, in each controller with the presence of at least one event
Carry out failure to report and report to the police during barrier, and do not deposit in each controller and carry out in the case of a fault next step；3）Then sentence
Disconnected commencing signal whether certain time（The scope of the time is, for example, 0.1s-0.3s）, continue institute in commencing signal
When stating the time, next step is carried out；4）Then judge speed whether less than a vehicle speed value（The scope of the vehicle speed value is, for example,
15km/h-25km/h）, next step is carried out in the case where speed is less than the vehicle speed value；5）Finally judge that electric motor vehicle gears are
It is no whether to step in neutral and brake pedal, in the case where electric motor vehicle gears are in neutral and brake pedal is stepped on,
Entire car controller sends electricity on high pressure and instructs to battery management system.
Fig. 2 is the flow chart of the lower method for electrically of the pure electric vehicle that the present invention is provided.As shown in Fig. 2 being referred to according to electricity under high pressure
Order carries out electric machine controller three-phase shortcircuit process；Judge whether three-phase shortcircuit process completes within the Second Threshold time, second
Insulation monitoring is carried out in the case that three-phase shortcircuit process is completed in threshold time, the three-phase shortcircuit mistake within the Second Threshold time
Journey performs electricity under high pressure in the case of not completing, while carry out failure reporting；Insulation fault is judged whether, is not existed absolutely
Reason performs electricity under high pressure in the case of hindering, electricity under high pressure is performed in the case where there is insulation fault, while carrying out in failure
Report；Judge whether positive contact device and cathode contact device have at least one to disconnect, positive contact device and cathode contact device have to
In the case that few one disconnects, active discharge is performed, performed in the case where positive contact device and cathode contact device do not disconnect
Electricity under low pressure, while carry out failure reporting；Perform electricity under low pressure；And complete lower electric process.
The Second Threshold time can be configured according to the needs of practical operation, it is preferable that during the Second Threshold
Between scope be 1s-2s, it is highly preferred that the first threshold time be 1s.
Technology according to the present invention scheme, entire car controller send electricity under high pressure and instruct to battery management system, cell tube
Reason system judges whether to receive electricity instruction under high pressure, and in the case where battery management system receives high pressure, electricity is instructed or from full-vehicle control
Device sends electricity instruction beginning timing under high pressure and reaches threshold time（Such as 5s）In the case of, carry out electric machine controller three-phase shortcircuit
Process, and judge whether three-phase shortcircuit process completes within the Second Threshold time, the three-phase shortcircuit process within the Second Threshold time
Insulation monitoring is carried out in the case of completing, insulation fault is judged whether, and is performed electricity under high pressure, wherein, there is insulation
Carry out failure to report in the case of failure；Directly skip in the case where three-phase shortcircuit process described in the Second Threshold time is not completed
Insulation monitoring step performs electricity under high pressure, while carry out failure reporting.Next, it is determined that whether positive contact device and cathode contact device
There is at least one to disconnect, in the case where positive contact device and cathode contact device have at least one disconnection, perform active discharge, and
Perform electricity under low pressure；Execution active discharge process is skipped in the case where positive contact device and cathode contact device do not disconnect directly
And electricity under low pressure is performed, while carry out failure reporting.
Entire car controller send high pressure under electricity instruction before, the present invention provide lower method for electrically also need to carry out following one be
Row previous step.Following previous step includes：1）Entire car controller sends unloading and enables first, inquires that each controller whether can be with
Carry out lower electricity；2）Then each controller to entire car controller feedback whether can electricity below, each controller feedback can below electricity or
Unloading enable is sent from entire car controller to start to reach threshold time（Such as 2s）In the case of perform next step；3）Then it is whole
Whether vehicle controller judges speed less than a vehicle speed value（The scope of the vehicle speed value is, for example, 15km/h-25km/h）, it is little in speed
Judge that vehicle speed value starts to reach another threshold time in the vehicle speed value or from entire car controller（The scope of the threshold time is, for example,
1s-3s, the present invention are not limited）In the case of perform next step；4）Then detect whether high-tension battery electric current drops to one electric
Flow valuve（The scope of the current value is, for example, 5A-15A）Hereinafter, in the case where high-tension battery electric current is dropped to below the current value,
Entire car controller sends electricity instruction under high pressure；In the case where high-tension battery electric current is not dropped to below the current value, postpone for the moment
Between（The scope of the time is, for example, 1s-2s）And judge whether high-tension battery electric current drops to below the current value for the second time, if
High-tension battery electric current drops to below the current value in judging at second, then entire car controller sends electricity instruction under high pressure, if
Judge that high-tension battery electric current does not drop to below the current value yet second, then reporting fault, but for electric process under pure electric vehicle
Proceed, entire car controller also will send high pressure under electricity instruction.
Described above is under pure electric vehicle each judgement step of electricity, but no matter judge how step is carried out, it is preferable that from
When driver closes pure electric vehicle switch beginning, the persistent period reaches a threshold time（The threshold time is, for example, 11s-13s, this
Invention is not limited thereof）In the case of, under the equal data storage of entire car controller electricity, with ensure pure electric vehicle can following electricity it is complete
Into.
The upper electric and lower method for electrically of the pure electric vehicle that the present invention is provided is to going out in electric and lower electric process on pure electric vehicle
Existing failure is detected that carrying out failure in case of a failure and reporting, thus entire car controller can be according on each
The fault message of report controls whole power up, so that electric on pure electric vehicle and lower electric process is safer.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, but, the present invention is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the present invention, various letters can be carried out to technical scheme
Monotropic type, these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned specific embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The compound mode of energy is no longer separately illustrated.
Additionally, combination in any between a variety of embodiments of the present invention, can also be carried out, as long as which is without prejudice to this
The thought of invention, which should equally be considered as content disclosed in this invention.
Claims (10)
1. a kind of powering method of pure electric vehicle, it is characterised in that the powering method includes：
Under drive mode：
Battery management system control cathode contact device is closed and checks whether the cathode contact device closes；
Entire car controller sequentially checks whether each controller, commencing signal persistent period, speed, gear and brake pedal are full
Sufficient pre-provisioning request, closes and described each controller, the commencing signal persistent period, the car in the cathode contact device
Fast, described gear and the brake pedal send electricity instruction on high pressure when meeting pre-provisioning request；
Close to enter line precharge according to electricity instruction control pre-charge contactor on the high pressure；
Judge that whether the precharge completes within the first threshold time, completes situation about being pre-charged within the first threshold time
Under, control positive contact device closure；
Judge whether the positive contact device is closed, in the case where the positive contact device is closed, disconnect described
Pre-charge contactor；And
Complete power up.
2. powering method according to claim 1, it is characterised in that the scope of the first threshold time is 1s-3s.
3. powering method according to claim 1, it is characterised in that do not complete within the first threshold time described pre-
In the case of charging, stop the precharge, while carry out failure reporting.
4. powering method according to claim 1, it is characterised in that in the situation that the positive contact device is not closed
Under, the pre-charge contactor is disconnected, while carry out failure reporting.
5. powering method according to claim 1, it is characterised in that the powering method also includes：
Whether detection high-tension battery has charging wire to access, and enters the row in the case where the high-tension battery is without charging wire access
Car pattern；And have charging wire to enter charge mode in the case of accessing in the high-tension battery.
6. a kind of powering method of the pure electric vehicle with described in any one claim in claim 1-5 is corresponding pure electronic
The lower method for electrically of car, it is characterised in that the lower method for electrically includes：
Entire car controller sends unloading to each controller and enables, and the feedback of each controller described in receiving；
The entire car controller sequentially checks whether each controller, speed and the high-tension battery electric current meet predetermined wanting
Ask, electricity under high pressure is sent when described each controller, the speed and the high-tension battery electric current meet pre-provisioning request and is referred to
Order；
Electric machine controller three-phase shortcircuit process is carried out according to electricity instruction under the high pressure；
Judge whether the three-phase shortcircuit process completes within the Second Threshold time, complete described within the Second Threshold time
In the case of three-phase shortcircuit process, Insulation monitoring is carried out；
Insulation fault being judged whether, in the case where there is no the insulation fault, electricity under high pressure is performed；
Judge whether positive contact device and cathode contact device have at least one to disconnect, connect in the positive contact device and the negative pole
In the case that tentaculum has at least one disconnection, active discharge is performed；
Perform electricity under low pressure；And
Complete lower electric process.
7. lower method for electrically according to claim 6, it is characterised in that the scope of the Second Threshold time is 1s-2s.
8. lower method for electrically according to claim 6, it is characterised in that do not complete described three within the Second Threshold time
In the case of phase short-circuit process, electricity under high pressure is performed, while carry out failure reporting.
9. lower method for electrically according to claim 6, it is characterised in that in the case where there is insulation fault, performs high pressure
Lower electricity, while carry out failure reporting.
10. lower method for electrically according to claim 6, it is characterised in that in the positive contact device and the cathode contact
In the case that device does not disconnect, electricity under low pressure is performed, while carry out failure reporting.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310684620.7A CN104709091B (en) | 2013-12-13 | 2013-12-13 | The upper electric and lower method for electrically of pure electric vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310684620.7A CN104709091B (en) | 2013-12-13 | 2013-12-13 | The upper electric and lower method for electrically of pure electric vehicle |
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| CN104709091A CN104709091A (en) | 2015-06-17 |
| CN104709091B true CN104709091B (en) | 2017-04-05 |
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| CN110466355B (en) * | 2019-08-29 | 2021-10-12 | 广州小鹏汽车科技有限公司 | Intelligent high-voltage delay power-off control method for electric automobile and electric automobile |
| CN112026787A (en) * | 2020-07-28 | 2020-12-04 | 北汽福田汽车股份有限公司 | Fault information processing method, device, vehicle and storage medium |
| CN113002353B (en) * | 2021-04-22 | 2023-01-13 | 远景动力技术(江苏)有限公司 | Battery pack connection method and device, electronic equipment and storage medium |
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| CN118790193B (en) * | 2024-09-13 | 2025-01-14 | 江西江铃集团新能源汽车有限公司 | Electric control method for pure electric vehicle, pure electric vehicle and storage medium |
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| CN101174715A (en) * | 2007-09-28 | 2008-05-07 | 深圳先进技术研究院 | A power battery management system and method integrating control and protection functions |
| US7742317B2 (en) * | 2007-12-19 | 2010-06-22 | Gm Global Technology Operations, Inc. | Precharging boost converters in DC to DC power converters |
| CN102549877B (en) * | 2009-11-11 | 2015-11-25 | 美商源捷有限公司 | Interlock mechanism for multiple battery packs |
| CN102175971B (en) * | 2011-02-18 | 2013-10-16 | 奇瑞汽车股份有限公司 | Relay state detection method and device of electric vehicle high-voltage system |
| WO2012146306A2 (en) * | 2011-04-29 | 2012-11-01 | Siemens Aktiengesellschaft | Method for limiting electrical power |
| CN102874124B (en) * | 2011-07-14 | 2014-09-17 | 北汽福田汽车股份有限公司 | Relay control strategy and device for battery of electric vehicle |
| JP5629657B2 (en) * | 2011-08-03 | 2014-11-26 | トヨタ自動車株式会社 | Hybrid vehicle and control method of hybrid vehicle |
| CN102426319A (en) * | 2011-09-16 | 2012-04-25 | 天津市松正电动汽车技术股份有限公司 | Direct current power supply system contactor adhesion detection device and method and electric vehicle |
| CN103419666B (en) * | 2012-05-22 | 2016-03-02 | 比亚迪股份有限公司 | The power system of electronlmobil, electronlmobil and heating of battery method |
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