CN112706749A - Hybrid power vehicle retarding method and vehicle - Google Patents

Hybrid power vehicle retarding method and vehicle Download PDF

Info

Publication number
CN112706749A
CN112706749A CN201911025100.9A CN201911025100A CN112706749A CN 112706749 A CN112706749 A CN 112706749A CN 201911025100 A CN201911025100 A CN 201911025100A CN 112706749 A CN112706749 A CN 112706749A
Authority
CN
China
Prior art keywords
generator
vehicle
engine
isg
speed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911025100.9A
Other languages
Chinese (zh)
Inventor
沙超
夏天星
余梦辉
苏常军
李涛
杨学青
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhengzhou Yutong Bus Co Ltd
Original Assignee
Zhengzhou Yutong Bus Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhengzhou Yutong Bus Co Ltd filed Critical Zhengzhou Yutong Bus Co Ltd
Priority to CN201911025100.9A priority Critical patent/CN112706749A/en
Publication of CN112706749A publication Critical patent/CN112706749A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/18—Conjoint control of vehicle sub-units of different type or different function including control of braking systems
    • B60W10/198—Conjoint control of vehicle sub-units of different type or different function including control of braking systems with exhaust brakes
    • 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
    • B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
    • B60W20/13—Controlling the power contribution of each of the prime movers to meet required power demand in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion
    • B60W20/14—Controlling the power contribution of each of the prime movers to meet required power demand in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion in conjunction with braking regeneration
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

The invention relates to a hybrid vehicle retarding method and a vehicle, which execute retarding control according to the operation judgment of a driver; controlling a generator to drag an engine, enabling the engine to be in an exhaust braking state, and maintaining the engine to a set rotating speed; calculating the power consumption of the generator at a set rotating speed, and calculating the regenerative braking torque of the driving motor according to the power consumption; and controlling the driving motor to output the regenerative braking torque. The invention overcomes the problem of slow speed failure caused by full charge of the energy storage device when the regenerative braking of the driving motor of the hybrid power vehicle is used for slowing the vehicle, simultaneously does not increase equipment, does not need to change the vehicle structure, and ensures the driving safety of the vehicle on long-time downhill.

Description

Hybrid power vehicle retarding method and vehicle
Technical Field
The invention relates to a hybrid vehicle retarding method and a vehicle, and belongs to the field of vehicle retarding braking.
Background
The dual-motor hybrid power system is a hybrid power system generally composed of a driving motor, a generator, an engine and the like, can achieve decoupling of the engine and the vehicle speed, and is commonly a direct-drive hybrid system, a double-planet-row hybrid system and the like.
The vehicle retarding function can provide auxiliary speed control when the vehicle descends for a long time, maintain the constant speed, avoid using mechanical braking based on friction force for a long time, prevent the attenuation of high-temperature braking force of the mechanical braking, and increase the driving safety of the vehicle.
The slow speed function of present commercial vehicle configuration mainly relies on extra configuration eddy current retarder or hydraulic retarber, and eddy current retarder or hydraulic retarber can solve the slow speed demand of road conditions such as vehicle long slope down to the driver can keep off the position according to the slope regulation retarber, controls the power of slowing down the speed in order to adapt to different road conditions. However, the configuration of the eddy current retarder or the hydraulic retarder increases the vehicle cost, improves the structural complexity of the vehicle and increases the vehicle weight. And for a hybrid electric vehicle, due to the limitations of the overall mechanism layout and the like, it is difficult to assemble a vortex retarder or a hydrodynamic retarder.
The exhaust brake blocks the exhaust passage with a butterfly valve provided in the exhaust pipe, so that resistance is generated by the fact that air in the cylinder cannot be smoothly discharged from the exhaust pipe during the exhaust stroke. The vehicle retarding function is realized on the basis of exhaust braking, and the vehicle retarding function is currently mainly applied to a traditional manual-gear vehicle, and a driver can control the retarding force by adjusting the gear of the vehicle. The hybrid vehicle is mainly an automatic transmission vehicle, and exhaust braking is used for slowing the vehicle of a new energy vehicle, so that multi-gear control is difficult to realize; according to the control logic of the hybrid vehicle, under the condition of long downhill road conditions needing a speed slowing function, an engine of the hybrid vehicle is often in a disconnected and stopped state to save fuel, and exhaust braking is difficult to be used for speed slowing control of the hybrid vehicle.
The motor regenerative braking of the new energy automobile applies reverse braking torque through a driving motor, recovers and converts the kinetic energy of the automobile into electric energy through electromagnetic force, and can store the electric energy back to a power battery of the automobile. When the motor regenerative braking is used for the vehicle speed slowing function, the vehicle cost is not increased, the vehicle economy is improved, the motor regenerative braking is realized based on the existing configuration of the hybrid vehicle, the vehicle weight is not increased, the vehicle structure is not changed, the speed slowing is controllable, and the motor regenerative braking can adapt to different road conditions. However, the energy storage device is limited in recharging capability and cannot be used for a long time. The power battery of the hybrid vehicle is limited by space and vehicle weight, and generally has small capacity, and when the power battery is fully charged, the retarding function is disabled. The speed slowing function is mainly used for speed control of long downhill road conditions instead of mechanical braking, and if the speed slowing function cannot be used for a long time, the speed slowing function cannot be used for long downhill to guarantee driving safety of a vehicle on long downhill.
Disclosure of Invention
The invention aims to provide a hybrid vehicle retarding method, which is used for solving the problem that the hybrid vehicle cannot be used for a long time when regenerative braking is used for a vehicle retarding function; meanwhile, the vehicle is provided, and the problem that the driving safety is influenced because the retarding device cannot be used for a long time under long downhill road conditions is solved.
In order to achieve the above object, the scheme of the invention comprises:
according to the hybrid vehicle speed slowing method, the speed slowing control is judged and executed according to the operation of a driver; controlling a generator to drag an engine, enabling the engine to be in an exhaust braking state, and maintaining the engine to a set rotating speed; calculating the power consumption of the generator at a set rotating speed, and calculating the regenerative braking torque of the driving motor according to the power consumption; and controlling the driving motor to output the regenerative braking torque.
The invention overcomes the problem of slow speed failure caused by full charge of the energy storage device when the regenerative braking of the driving motor of the hybrid power vehicle is used for slowing the vehicle, simultaneously does not increase equipment, does not need to change the vehicle structure, and ensures the driving safety of the vehicle on long-time downhill.
When the energy generated by braking is recovered in the retarding process, the generator reversely drags the engine of exhaust braking to consume power, so that the full time of the vehicle energy storage device is greatly prolonged, and the available time of retarding control when regenerative braking is used for retarding control is greatly prolonged.
Further, the regenerative braking torque of the driving motor is calculated according to the balance between the power consumption of the generator and the regenerative power of the driving motor.
The energy recovered by regenerative braking of the driving motor and the energy recovered by exhaust braking of the engine driven by the generator are balanced, the energy recovered by the regenerative braking is directly and completely consumed for dragging the exhaust braking of the engine, the traveling safety is the first requirement under the condition that the vehicle is on a long downhill road, the kinetic energy recovery is not considered, the electric power generated by the kinetic energy recovery is completely consumed, and the slow speed control cannot be failed because the energy storage device is full when the regenerative braking is used for the slow speed control.
Further, the regenerative braking torque of the drive motor is equal to the ratio of the generator speed to the drive motor speed multiplied by the generator torque.
The regenerative braking torque is obtained according to the relation between the torque and the rotating speed of the generator and the motor, and the method is simple, small in calculation amount and not prone to error.
Further, the driver's operation includes coasting the vehicle and the retarder switch not being in neutral.
The vehicle speed slowing function is judged to be started based on the sliding working condition and the speed retarder switch, the driver is prevented from mistakenly touching the speed retarder handle, the speed retarder is started when the vehicle accelerates, energy is wasted, and the vehicle cannot accelerate effectively.
Furthermore, the retarding control comprises a plurality of gears, and the retarding control of different gears is judged and executed according to the operation of a driver; the retarding control of different gears corresponds to different set rotating speeds of the engine.
The control of the speed reducer in different grades is realized, and the speed reducer is suitable for more working conditions and road conditions.
Further, the regenerative braking torque T is set when the retarder control is in the lowest gear or the highest gearMOTComprises the following steps:
TMOT＝TISG·RISG/RMOT
wherein, TISGFor the torque in the current gear of the generator, RISGFor the speed of the generator in the current gear, RMOTThe current driving motor rotating speed.
Further, when the retarding control is in the N gear, the regenerative braking torque T isMOT_NComprises the following steps:
TMOT_N＝TISG·[RISG_min+(RISG_max-RISG_min)·M/N]/RMOT
wherein 1 is<N<M, M is the maximum gear number, TISGFor the torque in the current gear of the generator, RISG_minFor minimum generator speed, R, during engine exhaust braking operationISG_maxFor maximum generator speed, R, during engine exhaust braking operationMOTThe current driving motor rotating speed.
The invention also provides a vehicle which comprises an engine, a driving motor, a generator and a controller, wherein the controller is connected with the engine, the driving motor and the generator in a control mode, and the controller executes an instruction for realizing the hybrid vehicle speed reducing method.
The vehicle is provided with a dual-motor hybrid power system, the engine in an exhaust braking state can be reversely dragged by the generator to consume power, the problem that when regenerative braking of the driving motor is used for vehicle speed slowing control, an energy storage device is easily full to cause speed slowing failure is solved, and the driving safety is improved.
Drawings
FIG. 1 is a schematic diagram of a retarder system according to the present invention;
fig. 2 is a control flow chart of a hybrid vehicle retarding method of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The method comprises the following steps:
the hybrid vehicle retarding system shown in fig. 1 includes a retarder control bar disposed on an instrument desk, the retarder control bar is in communication connection with a vehicle controller, and the vehicle controller is respectively in control connection with a driving motor, a generator and an engine; the generator is electrically connected with an energy storage device of the hybrid power vehicle, the energy storage device can be a super capacitor or a power battery, and the energy storage device is electrically connected with the driving motor; the generator is in transmission connection with the engine, adopts an ISG motor, can be used for driving the engine to run so as to start the engine, and can generate electricity when the vehicle is driven by the engine; the engine has an exhaust braking function, and can be disconnected with the drive axle, such as the drive axle and the drive axle differential mechanism through a transmission shaft and a clutch; the driving motor is in transmission connection with the drive axle, and kinetic energy recovery can be realized through regenerative braking.
As another embodiment, the vehicle control unit may be replaced by an independent speed reduction controller, and a dedicated controller is used to independently implement the speed reduction function.
As shown in fig. 2, the hybrid vehicle retarding method of the present invention comprises the steps of:
the vehicle control unit judges the running state of the vehicle, and if the vehicle is in a sliding mode; and the retarding function is in an opening state, namely the retarder control handle is in a gear (non-neutral gear), the retarding function is started to enter a retarding control mode.
The determination method of the vehicle coasting mode may be that, when the opening degree of the accelerator pedal of the vehicle is zero and the set time is continued, the vehicle is considered to be in a coasting running state, and the vehicle enters the coasting mode. The hybrid vehicle in the coasting mode will shut off the engine and disconnect the drive connection of the engine to the downstream powertrain to conserve fuel while preventing the engine from dragging backwards during vehicle coasting to waste coasting kinetic energy.
After entering a slow speed control mode, the vehicle control unit controls the generator to reversely drag the engine to rotate and enables the engine to rotate according to a set rotating speed; meanwhile, the engine is controlled to start exhaust braking, a butterfly valve in the exhaust direction of the engine is closed, oil injection and ignition are stopped, the cylinder generates positive pressure to block the movement of the piston in the upward stroke of the compression piston and the exhaust piston of the engine, so that certain resistance is generated in the running of the engine, and certain electric energy is consumed by a generator driving the engine to rotate.
The vehicle control unit calculates the power consumption of the generator (namely the power consumption of the engine in the state that the generator reversely drags the exhaust brake), and then calculates the regenerative braking torque of the driving motor according to the power consumption of the generator, so that the power generation power for recovering the kinetic energy in the regenerative braking process of the driving motor is equal to the power consumption of the generator.
And the vehicle control unit controls the driving motor to output the regenerative braking torque. The braking torque acts on the wheels through the drive axle, and the slow speed control of the vehicle is realized.
As another embodiment, the vehicle controller may further calculate, recalculate, and change the regenerative braking torque of the driving motor according to the energy storage condition of the vehicle energy storage device, for example, when the energy storage device is not full of electricity, the recovered power of the driving motor is greater than the power consumption power of the generator, so that a part of the recovered kinetic energy is stored; specifically, the rotational speed of the generator may be reduced to reduce the power consumption, and a constant regenerative braking, that is, a constant retarding force may be maintained. And if the energy storage device is fully charged, the recovered power of the driving motor is equal to the power consumption power of the generator, and the recovered kinetic energy is completely consumed. And may be further. Or further changing a retarding control strategy according to the electric quantity of the energy storage device, normally maintaining a constant retarding braking force through regenerative braking without using a generator to drag the engine in an exhaust braking state under the condition that the electric quantity of the energy storage device is not full, and recovering and storing kinetic energy in the energy storage device; when the energy storage device is fully charged, the vehicle control unit calculates the generating power recovered by the regenerative braking kinetic energy, controls the generator to reversely drag the engine in the exhaust braking state, and consumes the generating power recovered by the regenerative braking.
For a hybrid vehicle, the capacity of an energy storage device is small, and the vehicle can not be controlled to slow by using regenerative braking when the hybrid vehicle is fully charged.
In the exhaust braking process of the engine, different braking torques exist at different rotating speeds, and the braking force is larger when the rotating speed is higher. The engine exhaust brake is divided into a plurality of different rotating speed working intervals, and a plurality of different speed buffers or speed buffer grades can be set based on the different rotating speed working intervals. The driver selects different speed buffers through the retarder control handle, the generator drags the engine, and the engine reaches the rotating speed working interval of exhaust braking corresponding to the selected speed buffer; and then the vehicle control unit calculates the power consumption of the generator at the moment, and calculates the regenerative braking torque of the driving motor according to the power consumption, so that the power generation power recovered by the regenerative braking kinetic energy is equal to the power consumption. And finally, controlling the driving motor to respond to the regenerative braking torque by the vehicle control unit. The multi-stage control of the retarder based on the regenerative braking is realized.
Specifically, the corresponding relationship exists between the rotating speed of the engine and the rotating speed of the generator, the corresponding relationship of different driving systems is different, a corresponding relationship table between an engine rotating speed interval and a generator rotating speed interval can be specifically obtained through calibration, and the corresponding generator rotating speed or rotating speed interval can be obtained according to the engine rotating speed or the rotating speed interval through table look-up. Each different retarder corresponds to different engine rotating speeds or rotating speed intervals, the generator rotating speed or rotating speed interval of the retarder can be correspondingly obtained according to a table look-up, and the regenerative braking torque under the retarder is calculated according to the generator rotating speed or rotating speed interval, wherein the specific calculation method comprises the following steps:
1) for retarder first gear (lowest gear):
the engine exhaust braking speed is controlled to work at R through controlling the generator speedENG_minThen, the rotating speed of the generator is obtained as R through table look-upISG_minDriving the motor to regenerate the braking torque T according to the electric quantity balanceMOT_1Comprises the following steps:
TMOT_1＝TISG·RISG_min/RMOT
wherein R isENG_minFor minimum engine speed, T, during engine exhaust braking operationISGAs generator torque, RMOTFor driving the motor speed. The torque of the generator can be obtained by a table look-up or a sensor, the rotating speed of the driving motor is related to the real-time vehicle speed and the transmission ratio, and the torque can be obtained according to the vehicle speedOr directly by the sensor.
2) For retarder M gear (highest gear):
the engine exhaust braking speed is controlled to work at R through controlling the generator speedENG_maxThen, the rotating speed of the generator is obtained as R through table look-upISG_maxDriving the motor to regenerate the braking torque T according to the electric quantity balanceMOT_MComprises the following steps:
TMOT_M＝TISG·RISG_max/RMOT
wherein R isENG_maxThe maximum engine speed when the engine exhaust brake is in operation.
3) For retarder N-gear (1< N < M):
the engine exhaust braking speed is controlled to work at R through controlling the generator speedENG_min+(RENG_max-RENG_min) N/M, then the generator speed is R through table look-upISG_min+(RISG_max-RISG_min) N/M driving the motor regenerative braking torque T according to the electric quantity balanceMOT_NComprises the following steps:
TMOT_N＝TISG·[RISG_min+(RISG_max-RISG_min)·N/M]/RMOT。
the specific control chart of each gear of the hybrid multi-level retarding is shown in a table I:
list multi-stage slow-speed each gear control detail list
Figure BDA0002248404070000071
The invention aims at a double-motor hybrid vehicle with a motor regenerative braking function and an engine exhaust braking function, and utilizes a generator to reversely drag the engine to activate exhaust braking to consume electric quantity, and then realizes a speed slowing function through regenerative braking of a driving motor. The electric quantity generated by regenerative braking is consumed through engine exhaust braking, the problem that a driving motor cannot provide retarding braking force for a vehicle through regenerative braking after the hybrid vehicle energy storage device is fully charged is effectively solved, components are not added, and the original structure of the hybrid vehicle is not changed.
In the aspect of multi-level slow speed control, a generator is adopted to drag exhaust brake power consumption of an engine, the regenerative brake torque of a driving motor is controlled through the power consumption of the generator, and electric quantity is balanced. The generator is used for dragging the engine to exhaust and brake at different rotating speeds, the power consumption of the generator is controlled, the regenerative braking of the driving motor is correspondingly controlled, and the generator is divided into a plurality of gears according to the number of the multistage gears and the retarding force, so that multistage retarding control is realized.
The embodiment of the vehicle is as follows:
the vehicle of the invention is a double-motor hybrid vehicle, comprising an engine, a driving motor, a generator and a controller, and the structure and the connection relation of the retarding system of the invention are sufficiently clear in the method embodiment, and are not described again.
The controller of the present invention executes the instructions to implement the vehicle retarding method in the method embodiments, which are described in the method embodiments for sufficient clarity and will not be described herein again.

Claims (8)

1. A hybrid vehicle retarding method is characterized in that a retarding control is executed according to a driver's operation judgment;
controlling a generator to drag an engine, enabling the engine to be in an exhaust braking state, and maintaining the engine to a set rotating speed;
calculating the power consumption of the generator at a set rotating speed, and calculating the regenerative braking torque of the driving motor according to the power consumption;
and controlling the driving motor to output the regenerative braking torque.
2. A method of slowing a hybrid vehicle as claimed in claim 1, wherein the regenerative braking torque of the drive motor is calculated based on a balance between the consumed power of the generator and the regenerative power of the drive motor.
3. A hybrid vehicle retarding method according to claim 2, wherein the regenerative braking torque of the drive motor is equal to the generator torque multiplied by the ratio of the generator speed to the drive motor speed.
4. A hybrid vehicle retarding method as set forth in claim 1, wherein said driver's operation includes coasting the vehicle and the retarder switch is not in neutral.
5. The hybrid vehicle retarding method according to any one of claims 1 to 4, wherein the retarding control includes a plurality of gears, and the retarding control of different gears is executed according to the driver's operation judgment; the retarding control of different gears corresponds to different set rotating speeds of the engine.
6. A hybrid vehicle retarding method according to claim 5, wherein said regenerative braking torque T is applied when retarding control is in a lowest gear or a highest gearMOTComprises the following steps:
TMOT＝TISG·RISG/RMOT
wherein, TISGFor the torque in the current gear of the generator, RISGFor the speed of the generator in the current gear, RMOTThe current driving motor rotating speed.
7. The hybrid vehicle retarding method according to claim 6, wherein the regenerative braking torque T is applied when the retarding control is in N rangeMOT_NComprises the following steps:
TMOT_N＝TISG·[RISG_min+(RISG_max-RISG_min)·M/N]/RMOT
wherein 1 is<N<M, M is the maximum gear number, TISGFor the torque in the current gear of the generator, RISG_minFor minimum generator speed, R, during engine exhaust braking operationISG_maxFor maximum generator speed, R, during engine exhaust braking operationMOTThe current driving motor rotating speed.
8. A vehicle comprising an engine, a driving motor, a generator and a controller, wherein the controller is used for controlling and connecting the engine, the driving motor and the generator, and is characterized in that the controller executes instructions for realizing the hybrid vehicle speed slowing method according to any one of claims 1-7.
CN201911025100.9A 2019-10-25 2019-10-25 Hybrid power vehicle retarding method and vehicle Pending CN112706749A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911025100.9A CN112706749A (en) 2019-10-25 2019-10-25 Hybrid power vehicle retarding method and vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911025100.9A CN112706749A (en) 2019-10-25 2019-10-25 Hybrid power vehicle retarding method and vehicle

Publications (1)

Publication Number Publication Date
CN112706749A true CN112706749A (en) 2021-04-27

Family

ID=75540843

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911025100.9A Pending CN112706749A (en) 2019-10-25 2019-10-25 Hybrid power vehicle retarding method and vehicle

Country Status (1)

Country Link
CN (1) CN112706749A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113479071A (en) * 2021-07-09 2021-10-08 华人运通(江苏)技术有限公司 Electric vehicle slope sliding prevention control system and method

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1695976A (en) * 2004-05-14 2005-11-16 通用汽车公司 Coordinated regenerative and engine retard braking for a hybrid vehicle
CN101024397A (en) * 2006-02-22 2007-08-29 三菱扶桑卡客车株式会社 Control device for hybrid electric vehicle
WO2014199810A1 (en) * 2013-06-13 2014-12-18 いすゞ自動車株式会社 Hybrid vehicle and method for controlling same
CN104859658A (en) * 2015-04-30 2015-08-26 郑州宇通客车股份有限公司 Downhill slide control method of hybrid electric vehicle
JP2018083573A (en) * 2016-11-25 2018-05-31 三菱自動車工業株式会社 Regeneration control device for hybrid vehicle
CN108515970A (en) * 2017-01-23 2018-09-11 丰田自动车株式会社 Hybrid vehicle
US10183662B1 (en) * 2016-01-04 2019-01-22 Hydro-Gear Limited Partnership Regeneration power control
CN209320935U (en) * 2018-09-30 2019-08-30 郑州宇通客车股份有限公司 Merge the hybrid power system and vehicle of exhaust brake

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1695976A (en) * 2004-05-14 2005-11-16 通用汽车公司 Coordinated regenerative and engine retard braking for a hybrid vehicle
CN101024397A (en) * 2006-02-22 2007-08-29 三菱扶桑卡客车株式会社 Control device for hybrid electric vehicle
WO2014199810A1 (en) * 2013-06-13 2014-12-18 いすゞ自動車株式会社 Hybrid vehicle and method for controlling same
CN104859658A (en) * 2015-04-30 2015-08-26 郑州宇通客车股份有限公司 Downhill slide control method of hybrid electric vehicle
US10183662B1 (en) * 2016-01-04 2019-01-22 Hydro-Gear Limited Partnership Regeneration power control
JP2018083573A (en) * 2016-11-25 2018-05-31 三菱自動車工業株式会社 Regeneration control device for hybrid vehicle
CN108515970A (en) * 2017-01-23 2018-09-11 丰田自动车株式会社 Hybrid vehicle
CN209320935U (en) * 2018-09-30 2019-08-30 郑州宇通客车股份有限公司 Merge the hybrid power system and vehicle of exhaust brake

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113479071A (en) * 2021-07-09 2021-10-08 华人运通(江苏)技术有限公司 Electric vehicle slope sliding prevention control system and method

Similar Documents

Publication Publication Date Title
US8055422B2 (en) Vehicle deceleration rate control method and apparatus
CN102039891B (en) The control setup of motor vehicle driven by mixed power
JP5382223B2 (en) Control device for hybrid vehicle
US9457788B2 (en) Electromotive drive device used in engine-driven vehicle
JP2013035441A (en) Hybrid vehicle control device
JP2010155590A (en) Start control device for hybrid car
WO2016016390A1 (en) Electric drive control
CN105459799A (en) Driving system used for hybrid vehicle and provided with centrifugal overrunning clutch
CN113602071A (en) Hybrid power system and control method
JP5556580B2 (en) Control device for hybrid vehicle
JP5239841B2 (en) Control device for hybrid vehicle
JP2012131497A (en) Engine start control device of hybrid vehicle and method of controlling engine start of hybrid vehicle
CN110901626A (en) Novel plug-in type oil-electricity hybrid power parallel system and control strategy
JP2010269642A (en) Braking controller of hybrid vehicle
CN112706749A (en) Hybrid power vehicle retarding method and vehicle
CN114286763B (en) Control method for switching torque output paths of motor of hybrid electric vehicle
JP6801220B2 (en) Hybrid vehicle
CN210912403U (en) Hybrid power system
CN211642156U (en) Novel plug-in type oil-electricity hybrid power parallel system
JP5527159B2 (en) Control device for hybrid vehicle
CN113459791A (en) Hybrid electric vehicle and energy management control method applying same
JP2012153319A (en) Hybrid vehicle control device
JP2012091716A (en) Hybrid vehicle control device
JP5601964B2 (en) Control device for hybrid vehicle
JP3925498B2 (en) Control device for hybrid vehicle

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination