CN105313712B - The Poewr control method of distance increasing unit - Google Patents
The Poewr control method of distance increasing unit Download PDFInfo
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- CN105313712B CN105313712B CN201410364848.2A CN201410364848A CN105313712B CN 105313712 B CN105313712 B CN 105313712B CN 201410364848 A CN201410364848 A CN 201410364848A CN 105313712 B CN105313712 B CN 105313712B
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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
- Y02T10/62—Hybrid vehicles
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Abstract
In the Poewr control method of distance increasing unit, judge whether distance increasing unit output electric energy meets enable condition in enable judges step, if it is judged that to be then to enter rotating speed of target obtaining step, otherwise terminating flow.In rotating speed of target obtaining step, the rotating speed of target of the engine of the distance increasing unit corresponding with the target power of distance increasing unit power output is obtained.The real-time rotating speed pursuit rotating speed of target of engine is adjusted in engine speed regulating step.The real-time moment of torsion of engine corresponding with real-time rotating speed is obtained in reactive torque applies step, is applied with real-time torque approximately equal and reactive torque in opposite direction in engine by the generator of distance increasing unit.Judge whether real-time rotating speed is equal to rotating speed of target in velocity estimated step, if result is yes, ingoing power regulating step, otherwise return engine rotational speed regulation step and method phase moment of torsion apply step.The output torque of engine is adjusted in power modulating step so that distance increasing unit power output is equal to target power.
Description
Technical field
The present invention relates to a kind of Poewr control method, more particularly in stroke-increasing electric automobile, distance increasing unit power output
Control method.
Background technology
As the exhausted and people of petroleum resources are to the pay attention to day by day of environmental protection, electric automobile is increasingly subject to pay attention to, but
, with battery as power, its energy stores amount is low, seriously limits the endurance of electric automobile for current electric automobile, even if
Increase the quantity of battery on electric automobile, due to being significantly increased for complete vehicle quality, the improvement of electric automobile endurance is simultaneously
It is not notable.In addition, be up to 6 ~ 8 hours using the charging interval of the electric automobile of battery, and large-scale fast charge equipment is because of skill
Art difficulty is high, and the problems such as expensive, application is very slow.
Extended-range electric vehicle, is the electric automobile of engine auxiliary power generation based on drive motor.When on-vehicle battery electricity
Amount is when being consumed to minimum threshold limiting, and electric energy is simultaneously supplied to drive motor by engine power generation, redundance or deficiency
Partial electric energy is solved by battery charging or electric discharge.The control method of existing distance increasing unit power output can make distance increasing unit defeated
Go out electric current to fluctuate widely.
The content of the invention
It is an object of the invention to provide a kind of Poewr control method of distance increasing unit, to reduce the ripple of distance increasing unit output current
It is dynamic.
Judge that step, a target turn the invention provides a kind of Poewr control method of distance increasing unit, including an enable
Fast obtaining step, engine speed regulating step, a reactive torque apply step, a velocity estimated step and
Individual power modulating step.In enable judges step, judge whether distance increasing unit output electric energy meets enable condition, if it is determined that knot
Fruit otherwise terminates the power control procedures of distance increasing unit to be then to enter rotating speed of target obtaining step.In rotating speed of target obtaining step
In, obtain the rotating speed of target of the engine of the distance increasing unit corresponding with the target power of distance increasing unit power output.Turn in engine
In fast regulating step, the real-time rotating speed pursuit rotating speed of target of engine is adjusted.Reactive torque apply step in, obtain with it is real-time
The real-time moment of torsion of the corresponding engine of rotating speed, and by distance increasing unit generator apply one with real-time torque approximately equal and
Reactive torque in opposite direction is in engine.In velocity estimated step, judge whether real-time rotating speed is equal to rotating speed of target, if
Judged result is yes, then ingoing power regulating step, and otherwise return engine rotational speed regulation step and method phase moment of torsion applies step.
In power modulating step, the output torque of engine is adjusted so that distance increasing unit power output is equal to target power.
In another schematical implementation method of the Poewr control method of distance increasing unit, enable is judged in step, is enabled
Condition includes judging whether signal normally, and judges engine and generator for the controller of the controller of engine and generator
With the presence or absence of hardware fault and whether go up electric normal.
In the schematical implementation method of another kind of the Poewr control method of distance increasing unit, in rotating speed of target obtaining step also
It is provided with an instruction and judges step, instruction judges step for judging whether to receive the enabled instruction of distance increasing unit, if it is determined that
Result is yes, then obtain rotating speed of target, otherwise terminates the power control procedures of distance increasing unit.
In the schematical implementation method of another kind of the Poewr control method of distance increasing unit, target power and rotating speed of target
Corresponding relation is：
| Target power（Kilowatt） | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| Rotating speed of target（Revolutions per minute） | 1000 | 1300 | 1350 | 1400 | 1550 | 1580 | 1800 | 1900 |
| Target power（Kilowatt） | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
| Rotating speed of target（Revolutions per minute） | 2100 | 2200 | 2400 | 2600 | 2700 | 2800 | 2900 | 3100 |
| Target power（Kilowatt） | 16 | 17 | 18 | 19 | 20 | —— | —— | —— |
| Rotating speed of target（Revolutions per minute） | 3300 | 3400 | 3500 | 3600 | 3800 | —— | —— | —— |
In the schematical implementation method of another kind of the Poewr control method of distance increasing unit, the size of reactive torque is equal in fact
When moment of torsion subtract transmission loss between engine and motor.
Brief description of the drawings
The following drawings only does schematic illustration and explanation to the present invention, not delimit the scope of the invention.
Fig. 1 is used to illustrate a kind of structural representation of exemplary embodiment of stroke-increasing electric automobile.
Fig. 2 shows a kind of flow chart of exemplary embodiment of the Poewr control method of distance increasing unit.
Fig. 3 is used to illustrate the flow chart of the Poewr control method another kind exemplary embodiment of distance increasing unit.
Label declaration
10 distance increasing units
12 engines
14 generators
20 electrokinetic cells
30 motors.
Specific embodiment
In order to be more clearly understood to the technical characteristic invented, purpose and effect, now control brief description of the drawings is of the invention
Specific embodiment, in the various figures identical label represent identical part.
Herein, " schematic " expression " serving as example, example or explanation ", will should not be described herein as " showing
Any diagram of meaning property ", implementation method are construed to a kind of preferred or more advantageous technical scheme.
To make simplified form, part related to the present invention is only schematically show in each figure, their not generations
Table its as product practical structures.In addition, so that simplified form is readily appreciated, there is identical structure or function in some figures
Part, only symbolically depict one of those, or only marked one of those.
Herein, " one " is not only represented " only this ", it is also possible to represent the situation of " more than one ".
Unless otherwise indicated, number range herein not only includes the gamut in two end points, also including containing
In some subranges therein.
Fig. 1 is used to illustrate a kind of structural representation of exemplary embodiment of stroke-increasing electric automobile.As shown in figure 1, increasing
Formula electric automobile includes 10, electrokinetic cell 20 of a distance increasing unit and a motor 30.Wherein, distance increasing unit 10 is wrapped
Include an engine 12 and a generator 14.The exportable moment of torsion of engine 12 and rotating speed are to generator 14 so that generator 14
The mechanical energy that engine 12 is exported is converted into electric energy.
Motor 30 can convert electrical energy into the driving force of vehicle traveling.When the electricity of electrokinetic cell 20 is sufficient, by it
Powered to motor 30.When 20 not enough power supply of electrokinetic cell, distance increasing unit 10 starts.Generator 14 is driven to send out by engine 12
Electricity.The electric energy of the output of generator 14 is supplied to motor 30, so as to maintain the driving force that vehicle is travelled.Start in engine 12
When, can be powered from electrokinetic cell 20 to generator 14 so that generator 14 is changed into motor, by the output torque of engine 14 to hair
Motivation 12, so as to drag engine 12 start.
Fig. 2 shows a kind of flow chart of exemplary embodiment of the Poewr control method of distance increasing unit.As shown in Fig. 2 increasing
The Poewr control method of journey device judges step S10, rotating speed of target obtaining step S20, an engine including an enable
Rotational speed regulation step S30, a reactive torque apply step S40, a velocity estimated step S50 and a power adjusting step
Rapid S60.
In step slo, judge whether to meet distance increasing unit and export the enable condition of electric energy, if it is judged that be it is yes, then
Into step S20, otherwise terminate the power control procedures of distance increasing unit.In a kind of schematically implementation of the Poewr control method of distance increasing unit
In mode, enable condition includes：Whether signal is normal to judge the controller and the controller of generator of engine；Judgement is started
Whether machine and generator whether there is hardware fault and go up electric normal.Only when these enable conditions all meet, distance increasing unit is
Electric energy can normally be exported.
In step S20, the target work(of power demand, i.e. distance increasing unit power output is sent to distance increasing unit from entire car controller
Rate.Distance increasing unit finds engine target rotating speed corresponding with target power according to target power.In the Power Control side of distance increasing unit
In a kind of exemplary embodiment of method, rotating speed of target corresponding with target power, and target power are found by way of tabling look-up
With the corresponding relation such as following table of rotating speed of target：
| Target power（Kilowatt） | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| Rotating speed of target（Revolutions per minute） | 1000 | 1300 | 1350 | 1400 | 1550 | 1580 | 1800 | 1900 |
| Target power（Kilowatt） | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
| Rotating speed of target（Revolutions per minute） | 2100 | 2200 | 2400 | 2600 | 2700 | 2800 | 2900 | 3100 |
| Target power（Kilowatt） | 16 | 17 | 18 | 19 | 20 | —— | —— | —— |
| Rotating speed of target（Revolutions per minute） | 3300 | 3400 | 3500 | 3600 | 3800 | —— | —— | —— |
Then enter step S30 and step S40.
In step s 30, the output speed of engine is adjusted so that determine in the rotating speed pursuit step S20 of engine
Rotating speed of target.Then enter step S50.
In step s 40, the output speed of engine is obtained in real time, and according to the real-time admission pressure of engine, is utilized
The method that engine pedestal is demarcated, obtains real-time moment of torsion corresponding with real-time rotating speed.Engine pedestal is demarcated as the normal of this area
With method, will not be repeated here.In distance increasing unit so that generator be powered, thus generator can apply a reactive torque in
Engine.The size of reactive torque is approximately equal to real-time moment of torsion, and in the opposite direction with real-time moment of torsion.The size of reactive torque needs to examine
Consider the transmission loss of real-time torque drive to generator, in a kind of exemplary embodiment of Poewr control method of distance increasing unit,
The size of reactive torque is equal to the transmission loss that real-time moment of torsion is subtracted between engine and generator.Then enter step S50.
In step s 50, judge engine implementation rotating speed whether be equal to rotating speed of target, if it is judged that be it is yes, then
Into step S60, otherwise return to step S30 and step S40.
In step S60, now the output speed of engine has been stablized in rotating speed of target, by the defeated of vernier
Go out moment of torsion so that the power output of distance increasing unit is equal to target power.Terminate the power control procedures of distance increasing unit.
Fig. 3 is used to illustrate the flow chart of the Poewr control method another kind exemplary embodiment of distance increasing unit.Such as Fig. 3 institutes
Show, step S20 also judges a step S22 and rotating speed obtaining step S24 including an instruction.Judge whether in step S22
The enabled instruction of distance increasing unit is received, if it is judged that being yes, then rotating speed of target is obtained into step S24, otherwise terminated
The power control procedures of distance increasing unit.
The Poewr control method of distance increasing unit, distance increasing unit rotating speed is gently adjusted using engine so that distance increasing unit output current
Fluctuation is small.
It should be understood that, although this specification is described according to each implementation method, but not each implementation method is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Specification an as entirety, the technical scheme in each implementation method can also be formed into people in the art through appropriately combined
The understandable other embodiment of member.
Those listed above is a series of to be described in detail only for feasibility implementation method of the invention specifically
Bright, they simultaneously are not used to limit the scope of the invention, all equivalent embodiments made without departing from skill spirit of the present invention
Or change, such as combination of feature, segmentation or repetition, should be included within the scope of the present invention.
Claims (5)
1. the Poewr control method of distance increasing unit, including one enable judge step, rotating speed of target obtaining step, one start
Machine rotational speed regulation step, a reactive torque apply step, a velocity estimated step and a power modulating step, wherein：
In the enable judges step, judge whether distance increasing unit output electric energy meets enable condition, if it is judged that being yes
Then enter the rotating speed of target obtaining step, otherwise terminate the power control procedures of distance increasing unit；
In the rotating speed of target obtaining step, the hair of the distance increasing unit corresponding with the target power of distance increasing unit power output is obtained
The rotating speed of target of motivation；
In the engine speed regulating step, the real-time rotating speed for adjusting engine pursues the rotating speed of target；
In the reactive torque applies step, the real-time moment of torsion of engine corresponding with the real-time rotating speed is obtained, and by increasing
The generator of journey device applies one with the real-time torque approximately equal and reactive torque in opposite direction in engine；
In the velocity estimated step, judge whether the real-time rotating speed is equal to the rotating speed of target, if it is judged that being
It is, then into the power modulating step, otherwise to return to the engine speed regulating step and the reactive torque applies step
Suddenly；With
In the power modulating step, the output torque of engine is adjusted so that distance increasing unit power output is equal to the target
Power.
2. the Poewr control method of distance increasing unit as claimed in claim 1, wherein during the enable judges step, the enable bar
Part includes：
Whether signal is normal to judge the controller and the controller of generator of engine, and
Whether engine and generator are judged with the presence or absence of hardware fault and are gone up electric normal.
3. the Poewr control method of distance increasing unit as claimed in claim 1, wherein being additionally provided with the rotating speed of target obtaining step
One instruction judges step, and the instruction judges step for judging whether to receive the enabled instruction of the distance increasing unit, if
Judged result is yes, then obtain the rotating speed of target, otherwise terminates the power control procedures of distance increasing unit.
4. the Poewr control method of distance increasing unit as claimed in claim 1, wherein the target power and the rotating speed of target
Corresponding relation is：
Target power is that 0 kilowatt hour rotating speed of target is 1000 revolutions per minute；
Target power is that 1 kilowatt hour rotating speed of target is 1300 revolutions per minute；
Target power is that 2 kilowatt hour rotating speed of target are 1350 revolutions per minute；
Target power is that 3 kilowatt hour rotating speed of target are 1400 revolutions per minute；
Target power is that 4 kilowatt hour rotating speed of target are 1550 revolutions per minute；
Target power is that 5 kilowatt hour rotating speed of target are 1580 revolutions per minute；
Target power is that 6 kilowatt hour rotating speed of target are 1800 revolutions per minute；
Target power is that 7 kilowatt hour rotating speed of target are 1900 revolutions per minute；
Target power is that 8 kilowatt hour rotating speed of target are 2100 revolutions per minute；
Target power is that 9 kilowatt hour rotating speed of target are 2200 revolutions per minute；
Target power is that 10 kilowatt hour rotating speed of target are 2400 revolutions per minute；
Target power is that 11 kilowatt hour rotating speed of target are 2600 revolutions per minute；
Target power is that 12 kilowatt hour rotating speed of target are 2700 revolutions per minute；
Target power is that 13 kilowatt hour rotating speed of target are 2800 revolutions per minute；
Target power is that 14 kilowatt hour rotating speed of target are 2900 revolutions per minute；
Target power is that 15 kilowatt hour rotating speed of target are 3100 revolutions per minute；
Target power is that 16 kilowatt hour rotating speed of target are 3300 revolutions per minute；
Target power is that 17 kilowatt hour rotating speed of target are 3400 revolutions per minute；
Target power is that 18 kilowatt hour rotating speed of target are 3500 revolutions per minute；
Target power is that 19 kilowatt hour rotating speed of target are 3600 revolutions per minute；
Target power is that 20 kilowatt hour rotating speed of target are 3800 revolutions per minute.
5. the Poewr control method of distance increasing unit as claimed in claim 1, wherein the size of the reactive torque is equal to the reality
When moment of torsion subtract transmission loss between engine and motor.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105857095B (en) * | 2016-04-16 | 2018-05-08 | 浙江吉利控股集团有限公司 | A kind of distance increasing unit Power x Time control method |
| CN105946601B (en) * | 2016-05-05 | 2019-01-29 | 北京新能源汽车股份有限公司 | Range-extending type electric automobile and power generation control method thereof |
| US10112596B2 (en) * | 2016-05-18 | 2018-10-30 | Ford Global Technologies, Llc | Hybrid vehicle operating strategy during loss of motor controllability |
| CN106740821B (en) * | 2016-12-29 | 2019-01-08 | 丽水博远科技有限公司 | A kind of control method and system of hybrid power new-energy automobile |
| CN110281905B (en) * | 2019-06-28 | 2021-01-15 | 浙江吉利控股集团有限公司 | Control method, device, equipment and terminal of range-extending electric automobile |
| CN114785215A (en) * | 2022-04-27 | 2022-07-22 | 重庆小康工业集团股份有限公司 | Method and device for adjusting rotating speed of generator, vehicle control unit and vehicle |
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