CN107253475A - A kind of moment of torsion distribution method, moment of torsion dispensing controller for hybrid vehicle - Google Patents
A kind of moment of torsion distribution method, moment of torsion dispensing controller for hybrid vehicle Download PDFInfo
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- CN107253475A CN107253475A CN201710428557.9A CN201710428557A CN107253475A CN 107253475 A CN107253475 A CN 107253475A CN 201710428557 A CN201710428557 A CN 201710428557A CN 107253475 A CN107253475 A CN 107253475A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
-
- 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
Abstract
The invention provides a kind of moment of torsion distribution method, moment of torsion dispensing controller for hybrid vehicle, the moment of torsion dispensing controller is allocated control to moment of torsion using the moment of torsion distribution method, and the moment of torsion distribution method includes：Step A, original demands moment of torsion is drawn according to the parsing of the aperture of gas pedal；Step B, driving processing is carried out to original demands moment of torsion and draws operator demand's moment of torsion；Step C, according to original demands torque arithmetic engine steady state demand torque, using engine steady state demand torque as engine execution moment of torsion；Step D, calculates the difference that operator demand's moment of torsion subtracts engine actual torque, when difference is not less than zero, and using difference as the execution moment of torsion of motor, when difference is less than zero, controlled motor enters power generation mode.The moment of torsion distribution method of the present invention is based on operator demand's moment of torsion, the dynamic torque allocation strategy calculated using optimization, and reasonable distribution is to engine and motor, so as to improve the operating efficiency of hybrid power system.
Description
Technical field
The present invention relates to Development of HEV Technology field, more particularly to a kind of moment of torsion for hybrid vehicle point
Method of completing the square, moment of torsion dispensing controller.
Background technology
As global energy is in short supply and increasingly serious the problems such as vehicle emission pollution, promote low energy consumption, low emission it is new
Energy automobile turns into the common recognition of all circles.In new-energy automobile dynamical system scheme, strong mixing system is current good selection.
In strong mixing system, power configuration typically uses less engine and high pulling torque, high-power motor.Engine drives in response
During member's demand, it can be short of power, torque responsive is slow, and now demand motor does certain power-assisted, so, to meet driver's power
Property require, need to do engine, motor dynamic moment of torsion distribution in dynamic process.
Strong mixing system typically has 50 to 80 kilometers of pure motor driving mileage, when electricity declines to a certain extent, again
Combination drive mode of operation can be entered.Strong mixing system had both considered certain pure electronic mileage, reached higher energy-saving and emission-reduction
Effect.Again not by current electrically-charging equipment is in short supply and limitation car situation, thus with huge application prospect.
In summary, how a kind of moment of torsion distribution method under combination drive mode of operation is provided, passes through reasonable energy
Allocation strategy optimizes engine operation interval, so as to improve the operating efficiency of whole system, becomes those skilled in the art urgently
Technical problem to be solved.
The content of the invention
In view of this, control is distributed the invention provides a kind of moment of torsion distribution method for hybrid vehicle, moment of torsion
Device, the moment of torsion dispensing controller is allocated control to moment of torsion using the moment of torsion distribution method, and the moment of torsion distribution method is based on
Operator demand's moment of torsion, the dynamic torque allocation strategy calculated using optimization, reasonable distribution is to engine and motor, so as to improve
The operating efficiency of hybrid power system.
In order to achieve the above object, the present invention provides following technical scheme：
A kind of moment of torsion distribution method for hybrid vehicle, including：
Step A, original demands moment of torsion is drawn according to the parsing of the aperture of gas pedal；
Step B, driving processing is carried out to the original demands moment of torsion and draws operator demand's moment of torsion；
Step C, according to the original demands torque arithmetic engine steady state demand torque, by the engine steady state demand
Moment of torsion as engine execution moment of torsion；
Step D, calculates the difference that operator demand's moment of torsion subtracts engine actual torque, when the difference is not less than
When zero, using the difference as the execution moment of torsion of motor, when the difference is less than zero, the motor is controlled to enter generating mould
Formula.
Preferably, in above-mentioned moment of torsion distribution method, also include before step A：Judge whether Full Vehicle System meets pre-
If the condition of enable, the default enable condition is specially：
Dynamical system is in torque drive pattern；And
Engine is in running status；And
Electric system meets default generation aid condition.
Preferably, in above-mentioned moment of torsion distribution method, the default generation aid condition is：
The dump energy of battery, which is more than the minimum of Full Vehicle System, allows generating electricity；And
The available generated output of battery is more than the minimum use generated output of Full Vehicle System；And
The available charge power of motor is more than the minimum use charge power of vehicle；And
The maximum generation moment of torsion of motor and maximum booster torquemoment are all higher than predetermined threshold value.
A kind of moment of torsion dispensing controller for hybrid vehicle, including：
Receiving module, execution moment of torsion and operator demand's moment of torsion for receiving engine, the engine performs torsion
The engine steady state demand torque that square obtains for calculating；
Processing module, the difference of engine actual torque is subtracted for calculating operator demand's moment of torsion, when the difference
When value is not less than zero, obtains the difference as the first signal of the execution moment of torsion of motor, when the difference is less than zero, obtain
To the secondary signal for controlling the motor to enter power generation mode；
Signal transmitting module, for first signal and the secondary signal to be sent into the motor.
Preferably, in above-mentioned moment of torsion dispensing controller, in addition to for judging that the enable of default enable condition judges mould
Block, the default enable condition is specially：
Dynamical system is in torque drive pattern；And
Engine is in running status；And
Electric system meets default generation aid condition.
Preferably, in above-mentioned moment of torsion dispensing controller, in addition to for judging the hair of the default generation aid condition
Electric power-assisted judge module, the generation aid judge module is electrically connected with the enable judge module, the default generation aid
Condition is：
The dump energy of battery, which is more than the minimum of Full Vehicle System, allows generating electricity；And
The available generated output of battery is more than the minimum use generated output of Full Vehicle System；And
The available charge power of motor is more than the minimum use charge power of vehicle；And
The maximum generation moment of torsion of motor and maximum booster torquemoment are all higher than predetermined threshold value.
Preferably, in above-mentioned moment of torsion dispensing controller, in addition to the driving module electrically connected with the receiving module,
The driving module is used to receive the original demands moment of torsion for parsing and drawing according to the aperture of gas pedal, and to the original need
Ask moment of torsion to carry out driving processing and draw operator demand's moment of torsion.
It can be seen from above-mentioned technical proposal, provided by the present invention in the moment of torsion distribution method of hybrid vehicle, sending out
Motivation is actual, and perform is engine steady state demand torque that energy management unit is calculated, and the mode of operation of motor is according to driving
The person's of sailing demand torque and engine perform the mutual magnitude relationship of moment of torsion and changed, and engine is played high efficiency work
While work, the function of reasonable distribution motor, so as to improve the operating efficiency of hybrid power system.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is a kind of principle signal of moment of torsion distribution method for hybrid vehicle provided in an embodiment of the present invention
Figure；
Fig. 2 is a kind of execution stream of moment of torsion distribution function module for hybrid vehicle provided in an embodiment of the present invention
Cheng Tu；
Fig. 3 is a kind of result signal of moment of torsion distribution method for hybrid vehicle provided in an embodiment of the present invention
Figure.
Embodiment
In order to make it easy to understand, the invention will be further described below in conjunction with the accompanying drawings.
It is a kind of principle of moment of torsion distribution method for hybrid vehicle provided in an embodiment of the present invention referring to Fig. 1
Schematic diagram, the moment of torsion distribution method that the present invention is provided comprises the following steps：
Step A, driver's raw torque demand parsing show that original demands are turned round according to the parsing of the aperture of gas pedal
Square.
" parsing " original operator demand's moment of torsion refers to that the actual aperture of detection gas pedal accounts for the design of gas pedal
After the ratio of total aperture, the maximum drive torque value of Full Vehicle System is multiplied by with the ratio value, gained product is original driving
Member's demand torque.
Step B, demand torque driving processing, i.e., the original demands moment of torsion obtained to step A carries out driving and handled
Go out operator demand's moment of torsion.
Driving is processed as prior art, including Tip-in and Tip-out, Tip-in are exactly according to driver original
The moment of torsion that pedal is parsed carries out gradient limitation and filtering, it is ensured that the ride comfort that moment of torsion rises；Tip-out is exactly driver
During accelerator releasing, the gradient that original demands moment of torsion is done different parameters is limited and filtered, it is ensured that the ride comfort that moment of torsion declines.
Step C, energy management Steady Torque distribution is that is, steady according to the original demands torque arithmetic engine that step A is obtained
State demand torque, using engine steady state demand torque as engine execution moment of torsion.
" using engine steady state demand torque as engine execution moment of torsion " refer to, VCU (Vehicle Control
Uni, entire car controller) engine steady state demand torque is sent to ECU (Electrical Control Unit, Electronic Control
Unit), ECU adjusts air throttle and the angle of ignition using the engine steady state demand torque that receives as control parameter.
Step D, dynamic torque distribution calculates the difference that operator demand's moment of torsion subtracts engine actual torque, is on duty
Value be not less than zero when, using difference as motor execution moment of torsion (" motor demand torque " in Fig. 1), when difference be less than zero when,
Controlled motor enters power generation mode.
" engine actual torque " refers to, after ECU sends control signal, is actually provided in engine implementation procedure
Moment of torsion, in the prior art, " engine actual torque ", which can be detected, to be obtained and is sent to VCU, is used as VCU control parameter.
In practice, generally there is certain deviation in " engine actual torque " and " engine steady state demand torque ".
It is a kind of moment of torsion distribution function module for hybrid vehicle provided in an embodiment of the present invention referring to Fig. 2
Execution flow chart, the moment of torsion distribution function module is that the above-mentioned moment of torsion distribution method provided according to the present invention is designed, and it has
Body, which performs flow, to be included：S1, function coherent signal is received；S2, function enables condition judgment；S3, moment of torsion allocation strategy；S4, work(
Can exit criteria judgement.
S1~S4 is introduced separately below：
S1, function coherent signal is received.
Function coherent signal is used to judge whether power assembly meets the enable condition of the functional module, the signal bag of reception
Battery electric quantity is included, discharge power can be used, charge power, the maximum booster torquemoment of motor maximum generation moment of torsion, motor, engine can be used
State (operation or inoperative), gear, and accelerator pedal signal.
S2, function enables condition judgment.
The present embodiment is directed to dynamic torque distribution of the strong mixing system during parallel drive, so into the function
Condition be：
A. electric system has enough generating and power-assisted ability；And
B. dynamical system is in parallel drive state；And
C. vehicle is in the process of moving rather than in idling speed control process.
Wherein, condition a typically judges that electric system has enough generating and power-assisted ability from the following aspect：
The dump energy of battery, which is more than the minimum of Full Vehicle System, allows generating electricity；And
The available generated output of battery is more than the minimum use generated output of Full Vehicle System；And
The available charge power of motor is more than the minimum use charge power of vehicle；And
The maximum generation moment of torsion of motor and maximum booster torquemoment are all higher than predetermined threshold value.
In condition b, dynamical system refers in parallel drive state, and engine is in running status.When engine is in
Then it is pure electric Drive Mode during non-operating state.
Condition c is judged according to gear and accelerator pedal signal, and power just can be defeated when driving gear D/R for gear
Go out, stepped on certain throttle, the rotating speed control mould that such dynamical system can just enter under torque drive pattern, rather than idling crawling
Formula.
S3, moment of torsion allocation strategy.
Moment of torsion allocation strategy is that the engine steady state demand torque for being calculated energy management unit is used as engine
Perform moment of torsion；Operator demand's moment of torsion is subtracted to the difference of engine execution moment of torsion as motor demand torque, if the motor
Demand torque is the value not less than zero, then motor enters assistant mode, if the motor demand torque is minus value, electricity
Machine enters power generation mode.
The specific implementation process of moment of torsion allocation strategy can be found in the description above for Fig. 1, will not be repeated here.
It is the schematic diagram of the implementing result of the allocation strategy of the present embodiment referring to Fig. 3, as seen from Figure 3, as driver needs
Ask the change of moment of torsion, motor completes different functions, when the incipient stage of engine response, motor enter assistant mode there is provided
Booster torquemoment；When engine response to certain time, driving force is provided separately in engine, and motor enters power generation mode；By illustrating
Right part understand, when engine actual torque be less than operator demand's moment of torsion when, motor is again introduced into assistant mode.
S4, function exit criteria judges.
Function exit criteria is corresponding with enabling condition, i.e.,：
D. electric system does not have enough generating and power-assisted ability；Or
E. dynamical system is not at parallel drive state；Or
F. vehicle is not in the process of moving and in idling speed control process.
Provided by the present invention in the moment of torsion distribution method of hybrid vehicle, the actual execution of engine is energy pipe
The engine steady state demand torque that reason unit is calculated, and the mode of operation of motor is held according to operator demand's moment of torsion and engine
The mutual magnitude relationship of row moment of torsion and change, just can so make engine play efficiency operation while, reasonable distribution motor
Function, so as to improve the operating efficiency of hybrid power system.
It is corresponding with moment of torsion distribution method disclosed in above-described embodiment, it is used for hybrid power vapour present invention also offers one kind
The moment of torsion dispensing controller of car, including：
Receiving module, execution moment of torsion and operator demand's moment of torsion for receiving engine, the execution moment of torsion of engine is
Calculate obtained engine steady state demand torque；
Processing module, the difference of engine actual torque is subtracted for calculating operator demand's moment of torsion, when difference is not less than
When zero, obtain difference as the first signal of the execution moment of torsion of motor, when difference is less than zero, obtains controlled motor and enter hair
The secondary signal of power mode；
Signal transmitting module, for the first signal and secondary signal to be sent into motor.
In the particular embodiment, moment of torsion dispensing controller can also set enable judge module, for judging default make
Energy condition, presetting enable condition is specially：
Dynamical system is in torque drive pattern；And
Engine is in running status；And
Electric system meets default generation aid condition.
Certainly, in order to reduce the complexity of enable judge module, it can be provided for judging default generation aid in addition
The generation aid judge module of condition, and generation aid judge module is electrically connected with enabling judge module, so, enable and judge
Module receives the judged result of generation aid condition from generation aid judge module when judging default enable condition.
In the particular embodiment, presetting generation aid condition is：
The dump energy of battery, which is more than the minimum of Full Vehicle System, allows generating electricity；And
The available generated output of battery is more than the minimum use generated output of Full Vehicle System；And
The available charge power of motor is more than the minimum use charge power of vehicle；And
The maximum generation moment of torsion of motor and maximum booster torquemoment are all higher than predetermined threshold value.
The present invention is provided in moment of torsion dispensing controller, and receiving module is used to receive operator demand's moment of torsion, therefore, can set
The driving module electrically connected with receiving module is put, driving module is used to receive parses what is drawn according to the aperture of gas pedal
Original demands moment of torsion, and operator demand's moment of torsion is drawn to the progress driving processing of original demands moment of torsion.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to embodiment will be apparent for those skilled in the art, as defined herein general
Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention will not
It can be restricted to embodiment illustrated herein, and be to fit to consistent with features of novelty with principles disclosed herein most wide
Scope.
Claims (7)
1. a kind of moment of torsion distribution method for hybrid vehicle, it is characterised in that including：
Step A, original demands moment of torsion is drawn according to the parsing of the aperture of gas pedal；
Step B, driving processing is carried out to the original demands moment of torsion and draws operator demand's moment of torsion；
Step C, according to the original demands torque arithmetic engine steady state demand torque, by the engine steady state demand torque
It is used as the execution moment of torsion of engine；
Step D, calculates the difference that operator demand's moment of torsion subtracts engine actual torque, when the difference is not less than zero
When, using the difference as the execution moment of torsion of motor, when the difference is less than zero, control the motor to enter power generation mode.
2. moment of torsion distribution method according to claim 1, it is characterised in that also include before step A：Judge vehicle system
Whether system meets default enable condition, and the default enable condition is specially：
Dynamical system is in torque drive pattern；And
Engine is in running status；And
Electric system meets default generation aid condition.
3. moment of torsion distribution method according to claim 2, it is characterised in that the default generation aid condition is：
The dump energy of battery, which is more than the minimum of Full Vehicle System, allows generating electricity；And
The available generated output of battery is more than the minimum use generated output of Full Vehicle System；And
The available charge power of motor is more than the minimum use charge power of vehicle；And
The maximum generation moment of torsion of motor and maximum booster torquemoment are all higher than predetermined threshold value.
4. a kind of moment of torsion dispensing controller for hybrid vehicle, it is characterised in that including：
Receiving module, execution moment of torsion and operator demand's moment of torsion for receiving engine, the execution moment of torsion of the engine is
Calculate obtained engine steady state demand torque；
Processing module, the difference of engine actual torque is subtracted for calculating operator demand's moment of torsion, when the difference not
During less than zero, obtain the difference as the first signal of the execution moment of torsion of motor, when the difference is less than zero, controlled
Make the secondary signal that the motor enters power generation mode；
Signal transmitting module, for first signal and the secondary signal to be sent into the motor.
5. moment of torsion dispensing controller according to claim 4, it is characterised in that also including for judging default enable condition
Enable judge module, the default enable condition is specially：
Dynamical system is in torque drive pattern；And
Engine is in running status；And
Electric system meets default generation aid condition.
6. moment of torsion dispensing controller according to claim 5, it is characterised in that also including for judging the default generating
The generation aid judge module of power-assisted condition, the generation aid judge module is electrically connected with the enable judge module, described
Presetting generation aid condition is：
The dump energy of battery, which is more than the minimum of Full Vehicle System, allows generating electricity；And
The available generated output of battery is more than the minimum use generated output of Full Vehicle System；And
The available charge power of motor is more than the minimum use charge power of vehicle；And
The maximum generation moment of torsion of motor and maximum booster torquemoment are all higher than predetermined threshold value.
7. the moment of torsion dispensing controller according to any one in claim 4~6, it is characterised in that also including with it is described
The driving module of receiving module electrical connection, the driving module is used to receive parses what is drawn according to the aperture of gas pedal
Original demands moment of torsion, and operator demand's moment of torsion is drawn to original demands moment of torsion progress driving processing.
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| CN110834621A (en) * | 2019-10-15 | 2020-02-25 | 中国第一汽车股份有限公司 | Torque distribution control method for light hybrid vehicle, storage medium and vehicle |
| CN111016874A (en) * | 2019-12-05 | 2020-04-17 | 浙江吉利汽车研究院有限公司 | Torque distribution method and torque distribution device for hybrid electric vehicle |
| CN111071237A (en) * | 2019-12-29 | 2020-04-28 | 吉泰车辆技术（苏州）有限公司 | Seamless downshift control method for hybrid system |
| CN111169457A (en) * | 2019-12-29 | 2020-05-19 | 吉泰车辆技术（苏州）有限公司 | Hybrid power gear shifting control method |
| CN111452625A (en) * | 2019-01-22 | 2020-07-28 | 上海汽车集团股份有限公司 | Torque control method and device |
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| CN111016874A (en) * | 2019-12-05 | 2020-04-17 | 浙江吉利汽车研究院有限公司 | Torque distribution method and torque distribution device for hybrid electric vehicle |
| CN111016874B (en) * | 2019-12-05 | 2021-04-16 | 浙江吉利汽车研究院有限公司 | Torque distribution method and torque distribution device for hybrid electric vehicle |
| CN111169457A (en) * | 2019-12-29 | 2020-05-19 | 吉泰车辆技术（苏州）有限公司 | Hybrid power gear shifting control method |
| CN111071237A (en) * | 2019-12-29 | 2020-04-28 | 吉泰车辆技术（苏州）有限公司 | Seamless downshift control method for hybrid system |
| CN111071237B (en) * | 2019-12-29 | 2021-10-12 | 吉泰车辆技术（苏州）有限公司 | Seamless downshift control method for hybrid system |
| CN111169457B (en) * | 2019-12-29 | 2021-10-12 | 吉泰车辆技术（苏州）有限公司 | Hybrid power gear shifting control method |
| CN111645667A (en) * | 2020-04-23 | 2020-09-11 | 吉泰车辆技术（苏州）有限公司 | Torque control method, device and equipment for parallel mode of hybrid vehicle and vehicle |
| CN112477843A (en) * | 2020-11-24 | 2021-03-12 | 上汽通用五菱汽车股份有限公司 | Torque distribution method, system, device and storage medium for hybrid vehicle |
| CN112477843B (en) * | 2020-11-24 | 2022-09-06 | 上汽通用五菱汽车股份有限公司 | Torque distribution method, system, device and storage medium for hybrid vehicle |
| CN112977396A (en) * | 2021-03-18 | 2021-06-18 | 中国第一汽车股份有限公司 | Hybrid electric vehicle power generation torque distribution method and hybrid electric vehicle |
| CN112977396B (en) * | 2021-03-18 | 2022-04-22 | 中国第一汽车股份有限公司 | Hybrid electric vehicle power generation torque distribution method and hybrid electric vehicle |
| CN113619406A (en) * | 2021-09-02 | 2021-11-09 | 北京汽车集团越野车有限公司 | Control method and device for automobile power-assisted function |
| CN114274942A (en) * | 2022-01-14 | 2022-04-05 | 中国第一汽车股份有限公司 | Method and device for controlling charging and discharging power of battery of hybrid electric vehicle |
| CN114394083A (en) * | 2022-03-01 | 2022-04-26 | 重庆金康动力新能源有限公司 | Hybrid electric vehicle torque distribution method and system |
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