CN113715800B - Controller of vehicle with hybrid power coupling system, control method and vehicle - Google Patents

Controller of vehicle with hybrid power coupling system, control method and vehicle Download PDF

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Publication number
CN113715800B
CN113715800B CN202010441355.XA CN202010441355A CN113715800B CN 113715800 B CN113715800 B CN 113715800B CN 202010441355 A CN202010441355 A CN 202010441355A CN 113715800 B CN113715800 B CN 113715800B
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China
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mode
hybrid
coupling system
electric quantity
vehicle
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CN113715800A (en
Inventor
李瑶瑶
赵江灵
朱永明
周文太
魏丹
苏建云
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Guangzhou Automobile Group Co Ltd
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Guangzhou Automobile Group Co Ltd
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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
    • 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
    • B60W20/15—Control strategies specially adapted for achieving a particular effect
    • 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
    • B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
    • 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
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • 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
    • B60W20/20—Control strategies involving selection of hybrid configuration, e.g. selection between series or parallel configuration
    • 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
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/24—Energy storage means
    • B60W2510/242—Energy storage means for electrical energy
    • B60W2510/244—Charge state
    • 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
    • B60W2520/00—Input parameters relating to overall vehicle dynamics
    • B60W2520/10—Longitudinal speed
    • 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
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/02—Clutches
    • B60W2710/021—Clutch engagement state
    • 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
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/06—Combustion engines, Gas turbines
    • 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
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/08—Electric propulsion units
    • 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
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/10—Change speed gearings
    • 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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  • 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 discloses a controller of a vehicle with a hybrid power coupling system, a control method and the vehicle, which can enable the vehicle to work on a working point with better economy in a common mode. A hybrid coupling system comprising an engine and a plurality of electric machines, a controller capable of controlling the engine and at least one electric machine of the hybrid coupling system to provide torque to operate in respective modes of operation, the controller being arranged to: determining the mode type of the driving mode selected by the user according to the mode selection instruction; if the mode type of the driving mode is a common mode, controlling the vehicle to enter the common mode; after the vehicle enters the normal mode, acquiring the current vehicle speed requirement and the power battery electric quantity; and controlling the hybrid power coupling system to work in a working mode corresponding to the common mode according to the vehicle speed requirement and the electric quantity of the power battery.

Description

Controller of vehicle with hybrid power coupling system, control method and vehicle
Technical Field
The invention relates to the technical field of vehicle control, in particular to a controller of a vehicle with a hybrid power coupling system, a control method and the vehicle.
Background
The drivability of an automobile is difficult to meet the needs of all drivers with different sexes, different ages, and different driving styles. Such as: for some young male drivers, dynamic performance may be sought after; for some female drivers, economy and the like may be pursued. Thus, many car companies have pushed driving style buttons that allow the driver to manually select different driving modes.
In the prior art, in the driving mode, the specific working mode in the normal mode is usually directly controlled by the speed of power response, and as the control method in the prior art is simpler, the style is more single only when the speed of power response is simple, in the normal mode, the function of weakening the power performance can be realized by controlling the speed of the response of the accelerator pedal, so that the power response in the normal mode is adjusted, but the economy after the speed adjustment of the power response is not necessarily optimal, the economy is related to the action point of the power source, and the state adjusted by the speed of the power response is not necessarily the state with the best economy of the whole vehicle, so that a driving control strategy in the normal mode, which can work at the better economy point, is needed.
Disclosure of Invention
The invention provides a controller of a vehicle with a hybrid power coupling system, a control method and the vehicle, and aims to solve the problem that the prior art cannot effectively work in a common mode and has better economy.
In a first aspect, there is provided a controller for a vehicle having a hybrid coupling system comprising an engine and a plurality of electric machines, the controller being capable of controlling the engine and at least one electric machine of the hybrid coupling system to provide torque to operate in respective modes of operation, the controller being arranged to:
determining the mode type of the driving mode selected by the user according to the mode selection instruction;
If the mode type of the driving mode is a common mode, controlling the vehicle to enter the common mode;
After the vehicle enters the motion mode, acquiring the current vehicle speed requirement and the power battery electric quantity;
and controlling the hybrid power coupling system to work in a working mode corresponding to the common mode according to the vehicle speed requirement and the electric quantity of the power battery.
Further, the controller is arranged to:
And controlling the working modes corresponding to the common mode to be an engine direct drive 1-gear mode, an engine direct drive 2-gear mode, a hybrid drive 1 mode, a hybrid drive 2 mode, a double-motor drive 1 mode, a double-motor drive 2 mode, a single-motor pure electric mode or a series extended range mode.
Further, when the controller controls the hybrid power coupling system to work in the working mode corresponding to the normal mode according to the vehicle speed requirement and the electric quantity of the power battery, the controller is arranged to:
switching the working mode of the hybrid power coupling system according to the magnitude relation between the electric quantity of the power battery and a preset electric quantity threshold value;
Or alternatively, the first and second heat exchangers may be,
And switching the working mode of the hybrid power coupling system according to the magnitude relation between the power battery electric quantity and the preset electric quantity threshold value and the magnitude relation between the vehicle speed requirement and the preset vehicle speed threshold value.
Further, when the controller switches the working mode of the hybrid power coupling system according to the magnitude relation between the power battery electric quantity and a preset electric quantity threshold value, the controller is configured to:
Determining a current proper working mode according to the magnitude relation between the electric quantity of the power battery and a preset electric quantity threshold value;
and switching the original working mode of the hybrid power coupling system to the proper working mode.
Further, when the controller switches the operation mode of the hybrid power coupling system according to the magnitude relation between the power battery power and the preset power threshold and the magnitude relation between the vehicle speed requirement and the preset vehicle speed threshold, the controller is configured to:
Determining a current proper working mode according to the magnitude relation between the power battery electric quantity and the preset electric quantity threshold value and the magnitude relation between the vehicle speed requirement and the preset vehicle speed threshold value;
and switching the original working mode of the hybrid power coupling system to the proper working mode.
In a second aspect, there is provided a method of controlling a vehicle having a hybrid coupling system including an engine and a plurality of electric machines, the method being capable of controlling the engine and at least one electric machine of the hybrid coupling system to provide torque to operate in respective modes of operation, the method comprising:
determining the mode type of the driving mode selected by the user according to the mode selection instruction;
if the mode type of the driving mode is a normal mode, controlling the vehicle to enter the normal mode;
after the vehicle enters the normal mode, acquiring the current vehicle speed requirement and the power battery electric quantity;
and controlling the hybrid power coupling system to work in a working mode corresponding to the common mode according to the vehicle speed requirement and the electric quantity of the power battery.
In a third aspect, a controller for a vehicle having a hybrid coupling system, the hybrid coupling system including an engine and a plurality of electric machines, the method being capable of controlling the engine and at least one electric machine of the hybrid coupling system to provide torque to operate in respective modes of operation, the controller comprising:
the determining module is used for determining the mode type of the driving mode selected by the user according to the mode selection instruction;
The control module is used for controlling the vehicle to enter the normal mode if the determining module determines that the mode type of the driving mode is the normal mode;
the acquisition module is used for acquiring the current vehicle speed requirement and the power battery electric quantity after the control module controls the vehicle to enter the common mode;
the control module is also used for controlling the hybrid power coupling system to work in a working mode corresponding to the common mode according to the vehicle speed requirement and the power battery electric quantity acquired by the acquisition module.
Further, the control module is specifically configured to:
switching the working mode of the hybrid power coupling system according to the magnitude relation between the electric quantity of the power battery and a preset electric quantity threshold value;
Or alternatively, the first and second heat exchangers may be,
And switching the working mode of the hybrid power coupling system according to the magnitude relation between the power battery electric quantity and the preset electric quantity threshold value and the magnitude relation between the vehicle speed requirement and the preset vehicle speed threshold value.
Further, the control module is further specifically configured to:
Determining a current proper working mode according to the magnitude relation between the electric quantity of the power battery and a preset electric quantity threshold value;
and switching the original working mode of the hybrid power coupling system to the proper working mode.
In a fourth aspect, a vehicle is provided having the aforementioned hybrid coupling system and controller.
In a fifth aspect, a computer readable storage medium is provided, on which a computer program is stored which, when executed by a processor, implements the steps of the aforementioned control method or the functions of the controller.
In the scheme realized by the controller and the control method of the vehicle with the hybrid power coupling system, after the driving mode selected by the user is the normal mode, the vehicle is controlled to enter the normal mode, at the moment, the hybrid power coupling system can be controlled to work and switch in the working mode corresponding to the normal mode, and particularly, the hybrid power coupling system is controlled to work in the working mode corresponding to the normal mode according to the vehicle speed requirement and the power battery power, so that the normal driving style requirement of a driver can be responded relatively in a close manner without damaging the style requirement of the driver, and the hybrid power coupling system can be switched and operated in the working mode corresponding to the normal mode according to the vehicle speed requirement and the power battery power, so that the vehicle can work on a working point with better economy when in the normal mode.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments of the present invention will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a hybrid coupling system of the present invention;
FIG. 2 is a schematic diagram of a hybrid coupling system in hybrid drive 1 mode according to the present invention;
FIG. 3 is a schematic diagram of a hybrid coupling system in hybrid drive 2 mode according to the present invention;
FIG. 4 is a schematic diagram of a hybrid coupling system in a dual motor drive 1 mode according to the present invention;
FIG. 5 is a schematic diagram of a hybrid coupling system in a dual motor drive 2 mode according to the present invention;
FIG. 6 is a schematic diagram of a hybrid coupling system in electric-only mode with a single motor according to the present invention;
FIG. 7 is a schematic diagram of a hybrid power coupling system in series range-extending mode according to the present invention;
FIG. 8 is a schematic diagram of a hybrid coupling system in park power mode according to the present invention;
FIG. 9 is a schematic wheel end torque output for various modes of operation corresponding to the normal mode of the present invention;
FIG. 10 is a schematic diagram illustrating the switching of the corresponding operation modes in the normal mode according to the present invention;
FIG. 11 is a flow diagram of one embodiment implemented by a controller of a vehicle having a hybrid coupling system in accordance with the present invention;
FIG. 12 is a schematic diagram of a controller of a vehicle having a hybrid coupling system in accordance with the present invention;
Fig. 13 is another structural schematic diagram of a controller of a vehicle having a hybrid coupling system in the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. Based on the embodiments of the present invention, all fall within the scope of the present invention.
The present invention provides a hybrid power coupling system, firstly, description is made on the hybrid power coupling system provided by the present invention, referring to fig. 1, fig. 1 is a schematic structural diagram of the hybrid power coupling system, the hybrid power coupling system includes an engine 1, a first clutch 2, an input shaft 3, and a planetary gear mechanism, wherein the planetary gear mechanism includes a sun gear 4, a planet carrier 5, a ring gear 6, the hybrid power coupling system further includes a brake 7, a second clutch 8, a first gear 9, a second gear 10, a generator 11, an intermediate shaft 12, a third gear 13, a fourth gear 14, a fifth gear 15, a driving motor 16, a sixth gear 17, and a differential 18. Wherein the relationship of the various components of the hybrid coupling system is as follows:
the brake 7 is for braking the sun gear 4.
The first clutch 2 is configured to switch between the pure mode and the hybrid mode in order to control whether power of the engine 1 is output.
The function of the second clutch 8 and the brake 7 is to achieve two gears of the engine 1 in combination with a planetary gear mechanism.
When the brake 7 is engaged, the sun gear 4 is braked, at which time the power of the engine 1 is transmitted to the carrier 5 through the ring gear 6, then to the third gear 13 through the carrier 5, the third gear 13 transmits the power to the intermediate shaft 12, the intermediate shaft 12 transmits the power to the sixth gear 17 through the fourth gear 14, and finally the power is transmitted to the differential 18 and the wheel end by the sixth gear 17, which is the first gear of the engine, which is the power transmission process of the first gear of the engine.
When the second clutch 8 is combined, the sun gear 4 and the gear ring 6 of the planetary gear mechanism are connected together, the sun gear 4, the planet carrier 5 and the gear ring 6 of the planetary gear mechanism integrally rotate and are fixedly connected, then power is transmitted to the third gear 13 through the planet carrier 5, the power is transmitted to the intermediate shaft 12 through the third gear 13, the intermediate shaft 12 transmits the power to the sixth gear 17 through the fourth gear 14, and finally the power is transmitted to the differential 18 and the gear end through the sixth gear, and the process is a power transmission process of the second gear of the engine.
The drive motor 16 transmits power to the third gear 13 through the fifth gear 15, transmits power to the intermediate shaft 12 through the third gear 13, transmits power to the sixth gear 17 through the fourth gear 14, and finally transmits power to the differential 18 and the wheel end through the sixth gear 17.
It will be appreciated that the above description of the relationship between the various components of the hybrid coupling system is provided, and that the hybrid coupling system may be provided with a plurality of different modes of operation by comprehensively controlling the components of the engine 1, the generator 11, the drive motor 16, the first clutch 2, the second clutch 8, and the brake 7 of the hybrid coupling system according to different usage conditions.
The working modes of the hybrid power coupling system comprise an engine direct drive 1-gear mode, an engine direct drive 2-gear mode, a hybrid drive 1 mode, a hybrid drive 2 mode, a double-motor drive 1 mode, a double-motor drive 2 mode, a single-motor pure electric mode, a series range-extending mode and a parking power generation mode, and the hybrid power coupling system is provided with a braking energy recovery mode and the like besides the working modes.
When the hybrid coupling system operates in the hybrid drive 1 mode, as shown in fig. 2, the engine 1 is driven, the generator 11 is driven, the drive motor 16 is driven, the first clutch 2 is engaged, the second clutch 8 is disengaged, the brake 7 is braked, and the vehicle speed is at a medium-low vehicle speed. The arrow direction in fig. 2 indicates the power transmission direction, and the first clutch 2 and the second clutch 8 indicate the engaged state when they are shaded, and the brake 7 indicates the braked state when they are shaded.
When the hybrid coupling system operates in the hybrid drive 2 mode, as shown in fig. 3, the engine 1 is driven, the generator 11 is driven, the drive motor 16 is driven, the first clutch 2 is engaged, the second clutch 8 is engaged, the brake 7 is disengaged, and the vehicle speed is at a medium-high vehicle speed.
When the hybrid coupling system is operated in the two-motor drive 1 mode, as shown in fig. 4, the engine 1 is not operated, the generator 11 is driven, the drive motor 16 is driven, the first clutch 2 is disengaged, the second clutch 8 is disengaged, the brake 7 is braked, and the vehicle speed is at a medium-low vehicle speed.
When the hybrid coupling system is operated in the two-motor drive 2 mode, as shown in fig. 5, the engine 1 is not operated, the generator 11 is driven, the drive motor 16 is driven, the first clutch 2 is disengaged, the second clutch 8 is engaged, the brake 7 is disengaged, and the vehicle speed is at a medium-high vehicle speed.
When the hybrid coupling system is operated in the single-motor electric-only mode, as shown in fig. 6, the engine 1 is not operated, the generator 11 is not operated, the drive motor 16 is driven, the first clutch 2 is disengaged, the second clutch 8 is disengaged, the brake 7 is disengaged, and the vehicle speed is at the full vehicle speed.
When the hybrid power coupling system operates in the series extended range mode, as shown in fig. 7, the engine 1 generates power, the generator 11 generates power and starts the engine 1, the driving motor 16 drives, the first clutch 2 is engaged, the second clutch 8 is disengaged, the brake 7 is disengaged, and the vehicle speed is at full vehicle speed.
When the hybrid coupling system is operated in the parking power generation mode, as shown in fig. 8, the engine 1 generates power, the generator 11 generates power and starts the engine 1, the drive motor 16 is not operated, the first clutch 2 is not operated, the second clutch 8 is not operated, the brake 7 is not operated, and the vehicle speed is in a parking state.
When the hybrid power coupling system works in the engine direct drive 1-gear mode, the engine 1 is driven, the generator 11 is not operated, the driving motor 16 is not operated, the first clutch 2 is combined, the second clutch 8 is separated, the brake 7 is braked, and the vehicle speed is at a medium-low vehicle speed.
When the hybrid power coupling system is operated in the engine direct drive 2-speed mode, the engine 1 is driven, the generator 11 is not operated, the driving motor 16 is not operated, the first clutch 2 is engaged, the second clutch 8 is engaged, the brake 7 is disengaged, and the vehicle speed is at a medium-high vehicle speed.
It can be seen that, according to different requirements, the hybrid power coupling system can be made to work in one of the above working modes, and it is worth noting that the above middle-low vehicle speed, middle-high vehicle speed and full vehicle speed can all be configured, and the invention is not limited in particular, wherein the middle-high vehicle speed is greater than the middle-low vehicle speed, the middle-high vehicle speed and the middle-low vehicle speed respectively correspond to different vehicle speed ranges, the full vehicle speed refers to that the vehicle speed is in a certain fixed vehicle speed running, the vehicle speed is zero when the vehicle is in the parking power generation mode, and the engine generates power, drives the motor to generate power and is used for starting the engine.
For convenience of reading and understanding, when the hybrid power coupling system is in different working modes, the implementation conditions of the corresponding execution components, execution elements and the like can be referred to as the following table 1:
TABLE 1
It is noted that, in a vehicle to which the above hybrid coupling system is applied, the embodiment of the present invention includes a plurality of different driving modes including an electric mode (EV mode), an economy mode (ECO mode), a Normal mode (Normal mode), and a Sport mode (Sport mode), and has corresponding operation modes for different driving modes, wherein the driving performance in the different driving modes is different, the driving performance includes power and economy, the driving performance in the same driving performance type in the different driving modes has different driving performance heights, and exemplary driving performance in the different driving modes may be as shown in table 2 below:
TABLE 2
It can be seen that drivability in different driving modes is different, and different driving modes have different drivability heights in the same drivability type. The power performance of the EV mode depends on the power battery power, and if the power battery power is higher than a certain value, the power performance of the EV mode may be higher than that of the Sport mode or other driving modes, which will not be described in detail herein.
In the embodiment of the present invention, the Normal mode, that is, the working mode corresponding to the Normal mode includes all working modes of the hybrid power coupling system, for example, the working mode corresponding to the Normal mode includes an engine direct drive 1-gear mode, an engine direct drive 2-gear mode, a hybrid drive 1-mode, a hybrid drive 2-mode, a dual-motor drive 1-mode, a dual-motor drive 2-mode, a single-motor pure electric mode, a series range-extending mode and a parking power generation mode, and of course, other working modes of the hybrid power coupling system may also be included.
In Normal mode, there are different wheel end torques (Nm) at different vehicle speeds (km/H), and referring to fig. 9, DEV1 is a dual-motor drive 1 mode, DEV2 is a dual-motor drive 2 mode, SEV is a single-motor electric-only and series range-increasing mode, H1 is a hybrid drive 1 mode, H2 is a hybrid drive 2 mode, ICE1 is an engine direct drive 1-speed mode, and ICE2 is an engine direct drive 2-speed mode. It should be noted that fig. 9 is only an example. It can be seen that the different operation modes have different characteristics, and a plurality of different operation modes can adapt to different requirements of drivers, so as to improve the adaptability, and it should be noted that fig. 9 is only an illustration here.
In addition, the switching relationship between the corresponding operation modes in Normal mode is as shown in fig. 10, that is:
assuming that the hybrid drive 1 mode is currently adopted, if the first clutch 2 is disconnected, switching to the dual-motor drive 1 mode; if the brake 7 is disconnected, switching to a series range-extending mode; if the brake 7 is released and the second clutch 8 is engaged, the hybrid drive 2 mode is switched.
Assuming that the hybrid drive 2 mode is currently adopted, if the first clutch 2 is disconnected, switching to the dual-motor drive 2 mode; if the second clutch 8 is disconnected, switching to a series range-extending mode; when the brake 7 is engaged and the second clutch 8 is disengaged, the hybrid drive 1 mode is switched.
Assuming that the two-motor drive 1 mode is currently set, if the first clutch 2 is engaged, switching to the hybrid drive 1 mode; if the brake 7 is disconnected, switching to a single-motor electric-only mode; if the first clutch 2 is engaged and the brake 7 is disconnected, switching to the series range-extending mode is performed; if the brake 7 is released and the second clutch 8 is engaged, the mode is switched to the two-motor drive 2 mode.
Assuming the two-motor drive 2 mode is currently engaged, if the first clutch 2 is engaged, switching to the hybrid drive 2 mode; if the second clutch 8 is disconnected, switching to a single-motor electric-only mode; if the first clutch 2 is engaged and the second clutch 8 is disengaged, switching to the series range-extending mode is performed; when the brake 7 is engaged and the second clutch 8 is disengaged, the mode is switched to the two-motor drive 1 mode.
Assuming that the series extended range mode is currently set, if the brake 7 is engaged, switching to the hybrid drive 1 mode; if the second clutch 8 is engaged, switching to the hybrid drive 2 mode; if the first clutch 2 is disconnected and the brake is engaged, switching to the two-motor drive 1 mode; if the first clutch 2 is disengaged and the second clutch 8 is engaged, the mode is switched to the two-motor drive 2 mode.
Assuming that the single motor pure electric mode is currently adopted, if the brake 7 is engaged, switching to the double motor drive 1 mode; when the second clutch 8 is engaged, the mode is switched to the two-motor drive 2 mode.
It can be seen that, by controlling the relevant executing elements/components of the hybrid power coupling system, the hybrid power coupling system can be switched in different working modes, specifically, the embodiment of the invention proposes a specific switching control strategy for a driving mode being a normal mode, and the following detailed description is given below:
As shown in fig. 11, the present embodiment provides a controller of a vehicle having a hybrid coupling system including an engine and a plurality of electric machines, the controller being capable of controlling the engine and at least one electric machine of the hybrid coupling system to provide torque to operate in respective modes of operation, the controller being arranged to implement:
s10: and receiving a mode selection instruction which is input by a user and is used for selecting the driving mode type.
S20: and determining the mode type of the driving mode selected by the user according to the mode selection instruction.
When the driver drives the vehicle equipped with the hybrid coupling system as shown in fig. 1, the driver may select a desired driving mode according to driving requirements, and exemplarily, a driving mode selection button may be set at a central position of the vehicle, a corresponding mode selection instruction may be generated when the driver touches or clicks one of the buttons, the controller may receive the mode selection instruction, and a mode type of the driving mode selected by the user may be determined according to the mode selection instruction. For example, the driver may select EV, ECO, normal, sport or the like driving modes. For example, when the driver clicks a button corresponding to the Normal mode, the controller may determine that the driving mode selected by the user is the Normal mode.
S30: and if the mode type of the driving mode is Normal mode, controlling the vehicle to enter the Normal mode.
It will be appreciated that, since the Normal mode has a corresponding operation mode, and different operation modes of the hybrid coupling system have different implementation conditions, in this embodiment, the operation mode of the hybrid coupling system corresponding to the Normal mode also has an implementation condition, and thus, when the mode type of the driving mode selected by the user is the Normal mode, the vehicle can be controlled to enter the Normal mode.
S40: after the vehicle enters the Normal mode, acquiring the current vehicle speed requirement and the power battery electric quantity;
S50: and controlling the hybrid power coupling system to work in a working mode corresponding to the Normal mode according to the vehicle speed requirement and the electric quantity of the power battery.
After the vehicle enters the Normal mode, the hybrid power coupling system can be controlled to work in a working mode corresponding to the Normal mode according to the vehicle speed requirement and the electric quantity of the power battery, namely, in the Normal mode, the hybrid power coupling system can be switched between the working modes corresponding to the Normal mode further specifically according to the vehicle speed requirement (realized by a driver through an accelerator pedal) and the actual electric quantity of the power battery.
Therefore, when the driving mode selected by the user is Normal mode, the hybrid power coupling system can be controlled to work and switch in the working mode corresponding to the Normal mode, and particularly, the hybrid power coupling system is controlled to work in the working mode corresponding to the Normal mode according to the vehicle speed requirement and the electric quantity of the power battery, so that the Normal driving style requirement of the driver for Normal driving is not destroyed, the driver can respond more closely, and the hybrid power coupling system can work in the working mode corresponding to the Normal mode according to the vehicle speed requirement and the electric quantity of the power battery, so that the vehicle can work at a working point with better economical efficiency when in the Normal mode.
In an embodiment, the Normal mode corresponds to a working mode including an engine direct drive 1 gear mode, an engine direct drive 2 gear mode, a hybrid drive 1 mode, a hybrid drive 2 mode, a dual-motor drive 1 mode, a dual-motor drive 2 mode, a single-motor pure electric mode and a series range extending mode. That is, after the vehicle enters Normal mode, the hybrid power coupling system can be controlled to work in an engine direct drive 1-gear mode, an engine direct drive 2-gear mode, a hybrid drive 1-mode, a hybrid drive 2-mode, a dual-motor drive 1-mode, a dual-motor drive 2-mode, a single-motor pure electric mode or a series range-extending mode, and the switching between the working modes can be determined according to the power battery capacity and the vehicle speed requirement.
In an embodiment, the controller controls the hybrid power coupling system to operate in an operation mode corresponding to the Normal mode according to the vehicle speed requirement and the power battery power, and mainly comprises the following two modes, wherein the following two modes are respectively described below:
In a first way, the controller is arranged to switch the mode of operation of the hybrid coupling system according to the magnitude relation of the power battery level and a preset level threshold. That is, in this first manner, the operation mode of the hybrid power coupling system is directly switched according to the magnitude relation between the power battery level and the preset power level threshold, specifically, the controller is configured to determine the current suitable operation mode according to the magnitude relation between the power battery level and the preset power level threshold, and switch the original operation mode of the hybrid power coupling system to the suitable operation mode. The preset electric quantity threshold value is a preset value, and in the method, a plurality of preset electric quantity threshold values can be used for switching the working mode of the hybrid power coupling system by combining the electric quantity of the power battery.
Therefore, in this embodiment, a mode of switching the working mode of the hybrid power coupling system according to the magnitude relation between the power battery electric quantity and the preset electric quantity threshold is specifically provided, so that the feasibility of the scheme is improved, and the hybrid power coupling system is effectively ensured to work in a reasonable working mode in consideration of the power battery electric quantity, so that the dynamic property and economical efficiency of the vehicle can be ensured.
In a second way, the controller is arranged to switch the mode of operation of the hybrid coupling system in dependence on the magnitude relation of the power battery charge and the preset charge threshold, and the magnitude relation of the vehicle speed demand and a preset vehicle speed threshold. That is, in this second mode, the operation mode of the hybrid power coupling system is switched in combination with the magnitude relation between the vehicle speed requirement and the preset vehicle speed threshold while the magnitude relation between the power battery power and the preset power threshold is being used, specifically, the controller is configured to determine the current suitable operation mode according to the magnitude relation between the power battery power and the preset power threshold, and the magnitude relation between the vehicle speed requirement and the preset vehicle speed threshold; and switching the original working mode of the hybrid power coupling system to the proper working mode. Wherein the preset vehicle speed threshold is a preset value.
Therefore, in this embodiment, the working mode of the hybrid power coupling system is specifically set to be switched according to the electric quantity of the power battery and the vehicle speed requirement, so that the feasibility of the scheme is improved, and the electric quantity of the power battery and the vehicle speed requirement are comprehensively considered, so that the hybrid power coupling system is more effectively ensured to work in a reasonable working mode, and the dynamic property and the economical efficiency of the vehicle can be ensured.
It can be understood that in Normal mode, the switching schematic diagram between the operation modes is shown in fig. 10. According to the embodiment of the invention, related executive elements or components of the hybrid power coupling system can be controlled according to the electric quantity of the power battery or the vehicle speed requirement and the electric quantity of the power battery, so that the hybrid power coupling system can be switched between corresponding working modes when the driving mode is a Normal mode, namely, the direct driving 1-gear mode of the engine, the direct driving 2-gear mode of the engine, the hybrid driving 1-mode, the hybrid driving 2-mode, the dual-motor driving 1-mode, the dual-motor driving 2-mode, the single-motor pure electric mode and the series range increasing mode.
In an embodiment, before the controller controls the vehicle to perform Normal mode, the controller is further arranged to determine whether an admission condition of Normal mode is currently met, in particular arranged to implement the following scheme:
determining whether the vehicle currently meets one of preset conditions;
if the vehicle currently meets one of the preset conditions, determining that the vehicle does not currently meet the admission condition of the Normal mode;
And if the vehicle does not meet any one of the preset conditions, determining that the vehicle meets the admission condition of the Normal mode.
Wherein, in an embodiment, the controller determines whether the preset condition is satisfied by the vehicle comprises:
a. the failure of parts of the power system, such as the failure of a driving motor, an engine, a motor controller and the like;
b. The temperature of a generator or a driving motor of the vehicle is higher than a preset temperature value, and the power output of the vehicle is influenced by the excessive temperature, so that the dynamic property is influenced;
It can be seen that, in the embodiment of the present invention, specific Normal mode admission conditions are provided, and when one of the preset conditions is satisfied, it is determined that the vehicle does not satisfy the Normal mode admission conditions; the vehicle is determined to meet the admission condition of the Normal mode if the vehicle does not meet any one of the preset conditions, the feasibility of the scheme is improved, in addition, the admission condition of the specific Normal mode is limited, the hybrid power coupling system can be enabled to normally work in the working mode of the Normal mode after entering the Normal mode, the power driving requirement of a driver can be accurately responded, and the power performance and the adaptability of the vehicle are improved.
It should be noted that the above preset conditions are exemplified herein, and in practical application, the preset conditions may also include other condition restrictions besides the conditions a and b, or the preset conditions include some of the conditions a and b, which is not limited in the present invention and may be configured according to practical situations. For example, other conditions that may cause the vehicle to fail to operate in the Normal mode may be adopted, such as an over-temperature of the power battery, a failure of the high-voltage system of the whole vehicle, a failure of the clutch to be engaged or disengaged, a stuck solenoid valve, etc., where the admission condition of the Normal mode is not satisfied.
In one embodiment, when the vehicle brakes, the driving motor generates braking torque to brake the wheels, and induction current is generated in the motor winding to charge the power battery, so that braking energy is recovered. Whereby the controller is further arranged to: the driving motor is controlled to generate braking torque and generate induced current in the winding to charge the battery during braking, so that the driving motor can be effectively utilized to act as a power battery.
In one embodiment, a control method of a vehicle having a hybrid coupling system including an engine and a plurality of electric machines is provided, the method capable of controlling the engine and at least one electric machine of the hybrid coupling system to provide torque to operate in respective modes of operation, the method comprising:
determining the mode type of the driving mode selected by the user according to the mode selection instruction;
if the mode type of the driving mode is a normal mode, controlling the vehicle to enter the normal mode;
after the vehicle enters the normal mode, acquiring the current vehicle speed requirement and the power battery electric quantity;
and controlling the hybrid power coupling system to work in a working mode corresponding to the common mode according to the vehicle speed requirement and the electric quantity of the power battery.
It should be noted that, regarding the steps of the control method of the vehicle having the hybrid coupling system, reference may be made specifically to the functions and implementation steps in which the aforementioned controller is arranged, and detailed description thereof will not be repeated here.
It should be understood that the sequence number of each step in the foregoing embodiment does not mean that the execution sequence of each process should be determined by the function and the internal logic, and should not limit the implementation process of the embodiment of the present invention.
In one embodiment, a controller for a vehicle having a hybrid coupling system including an engine and a plurality of electric machines is provided, the controller being capable of controlling the engine and at least one electric machine of the hybrid coupling system to provide torque to operate in respective modes of operation, the controller in the foregoing embodiments having a one-to-one correspondence of functions. As shown in fig. 12, the controller 10 includes a determination module 101, a control module 102, and an acquisition module 103. The functional modules are described in detail as follows:
the determining module is used for determining the mode type of the driving mode selected by the user according to the mode selection instruction;
The control module is used for controlling the vehicle to enter the normal mode if the determining module determines that the mode type of the driving mode is the normal mode;
the acquisition module is used for acquiring the current vehicle speed requirement and the power battery electric quantity after the control module controls the vehicle to enter the common mode;
the control module is also used for controlling the hybrid power coupling system to work in a working mode corresponding to the common mode according to the vehicle speed requirement and the power battery electric quantity acquired by the acquisition module.
In one embodiment, the control module is specifically configured to:
switching the working mode of the hybrid power coupling system according to the magnitude relation between the electric quantity of the power battery and a preset electric quantity threshold value;
Or alternatively, the first and second heat exchangers may be,
And switching the working mode of the hybrid power coupling system according to the magnitude relation between the power battery electric quantity and the preset electric quantity threshold value and the magnitude relation between the vehicle speed requirement and the preset vehicle speed threshold value.
In an embodiment, the control module is further specifically configured to:
Determining a current proper working mode according to the magnitude relation between the electric quantity of the power battery and a preset electric quantity threshold value;
and switching the original working mode of the hybrid power coupling system to the proper working mode.
In an embodiment, the control module is further specifically configured to:
Determining a current proper working mode according to the magnitude relation between the power battery electric quantity and the preset electric quantity threshold value and the magnitude relation between the vehicle speed requirement and the preset vehicle speed threshold value;
and switching the original working mode of the hybrid power coupling system to the proper working mode.
The function of the controller may be referred to as the above limitation of the controller, and will not be described herein. The various modules in the controller described above may be implemented in whole or in part by software, hardware, and combinations thereof. The above modules may be embedded in hardware or may be independent of a processor in the controller, or may be stored in software in a memory in the controller, so that the processor may call and execute operations corresponding to the above modules.
In one embodiment, a controller is provided, which may be a vehicle controller on a vehicle, and an internal structure thereof may be as shown in fig. 13. The controller includes a processor and a memory connected by a system bus. Wherein the processor of the controller is configured to provide computing and control capabilities. The memory of the controller includes a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The computer program is executed by a processor to realize the functions of the controller of the vehicle having the hybrid coupling system in the embodiment of the invention, or the steps of the control method of the vehicle having the hybrid coupling system in the present embodiment.
In one embodiment, a controller is provided that includes a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program:
determining the mode type of the driving mode selected by the user according to the mode selection instruction;
If the mode type of the driving mode is a common mode, controlling the vehicle to enter the common mode;
after the vehicle enters the normal mode, acquiring the current vehicle speed requirement and the power battery electric quantity;
and controlling the hybrid power coupling system to work in a working mode corresponding to the common mode according to the vehicle speed requirement and the electric quantity of the power battery.
In one embodiment, a computer readable storage medium is provided having a computer program stored thereon, which when executed by a processor, performs the steps of:
determining the mode type of the driving mode selected by the user according to the mode selection instruction;
If the mode type of the driving mode is a common mode, controlling the vehicle to enter the common mode;
after the vehicle enters the normal mode, acquiring the current vehicle speed requirement and the power battery electric quantity;
and controlling the hybrid power coupling system to work in a working mode corresponding to the common mode according to the vehicle speed requirement and the electric quantity of the power battery.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (SYNCHLINK) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention.

Claims (9)

1. A controller of a vehicle having a hybrid coupling system, the hybrid coupling system comprising an engine and a plurality of electric machines, the controller being capable of controlling the engine and at least one electric machine of the hybrid coupling system to provide torque to operate in respective modes of operation, the controller being arranged to:
determining the mode type of the driving mode selected by the user according to the mode selection instruction;
if the mode type of the driving mode is a normal mode, controlling the vehicle to enter the normal mode;
after the vehicle enters the normal mode, acquiring the current vehicle speed requirement and the power battery electric quantity;
Controlling the hybrid power coupling system to work in a working mode corresponding to the common mode according to the vehicle speed requirement and the electric quantity of the power battery, wherein the working mode corresponding to the common mode is an engine direct drive 1-gear mode, an engine direct drive 2-gear mode, a hybrid drive 1 mode, a hybrid drive 2 mode, a double-motor drive 1 mode, a double-motor drive 2 mode, a single-motor pure electric mode or a series range extending mode;
The controller is arranged to:
And switching the working mode of the hybrid power coupling system according to the magnitude relation between the electric quantity of the power battery and a preset electric quantity threshold value.
2. The controller of claim 1, wherein the controller is further configured to, when operating in the mode corresponding to the normal mode, control the hybrid coupling system based on the vehicle speed demand and the power battery level:
And switching the working mode of the hybrid power coupling system according to the magnitude relation between the power battery electric quantity and the preset electric quantity threshold value and the magnitude relation between the vehicle speed requirement and the preset vehicle speed threshold value.
3. The controller of claim 1, wherein when the controller switches the operation mode of the hybrid coupling system according to the magnitude relation between the power battery level and a preset level threshold, the controller is arranged to:
Determining a current proper working mode according to the magnitude relation between the electric quantity of the power battery and a preset electric quantity threshold value;
and switching the original working mode of the hybrid power coupling system to the proper working mode.
4. The controller of claim 2, wherein when the controller switches the mode of operation of the hybrid coupling system according to the magnitude relationship of the power battery charge and the preset charge threshold, and the magnitude relationship of the vehicle speed demand and a preset vehicle speed threshold, the controller is arranged to:
Determining a current proper working mode according to the magnitude relation between the power battery electric quantity and the preset electric quantity threshold value and the magnitude relation between the vehicle speed requirement and the preset vehicle speed threshold value;
and switching the original working mode of the hybrid power coupling system to the proper working mode.
5. A method of controlling a vehicle having a hybrid coupling system, the hybrid coupling system including an engine and a plurality of electric machines, the method being capable of controlling the engine and at least one electric machine of the hybrid coupling system to provide torque to operate in respective modes of operation, the method comprising:
determining the mode type of the driving mode selected by the user according to the mode selection instruction;
if the mode type of the driving mode is a normal mode, controlling the vehicle to enter the normal mode;
after the vehicle enters the normal mode, acquiring the current vehicle speed requirement and the power battery electric quantity;
Controlling the hybrid power coupling system to work in a working mode corresponding to the common mode according to the vehicle speed requirement and the electric quantity of the power battery, wherein the working mode corresponding to the common mode is an engine direct drive 1-gear mode, an engine direct drive 2-gear mode, a hybrid drive 1 mode, a hybrid drive 2 mode, a double-motor drive 1 mode, a double-motor drive 2 mode, a single-motor pure electric mode or a series range extending mode;
when the hybrid power coupling system is controlled to work in a working mode corresponding to the common mode according to the vehicle speed requirement and the electric quantity of the power battery, the hybrid power coupling system comprises:
And switching the working mode of the hybrid power coupling system according to the magnitude relation between the electric quantity of the power battery and a preset electric quantity threshold value.
6. A controller for a vehicle having a hybrid coupling system, the hybrid coupling system including an engine and a plurality of electric machines, the controller being capable of controlling the engine and at least one electric machine of the hybrid coupling system to provide torque to operate in respective modes of operation, the controller comprising:
the determining module is used for determining the mode type of the driving mode selected by the user according to the mode selection instruction;
the control module is used for controlling the vehicle to enter the normal mode if the determining module determines that the mode type of the driving mode is the normal mode;
the acquisition module is used for acquiring the current vehicle speed requirement and the power battery electric quantity after the control module controls the vehicle to enter the common mode;
The control module is further used for controlling the hybrid power coupling system to work in a working mode corresponding to the common mode according to the vehicle speed requirement and the power battery electric quantity acquired by the acquisition module, wherein the working mode corresponding to the common mode is an engine direct drive 1-gear mode, an engine direct drive 2-gear mode, a hybrid drive 1-mode, a hybrid drive 2-mode, a dual-motor drive 1-mode, a dual-motor drive 2-mode, a single-motor pure electric mode or a series range extending mode;
Wherein, the control module is specifically used for:
And switching the working mode of the hybrid power coupling system according to the magnitude relation between the electric quantity of the power battery and a preset electric quantity threshold value.
7. The controller of claim 6, wherein the control module is further specifically configured to:
And switching the working mode of the hybrid power coupling system according to the magnitude relation between the power battery electric quantity and the preset electric quantity threshold value and the magnitude relation between the vehicle speed requirement and the preset vehicle speed threshold value.
8. The controller of claim 6, wherein the control module is further specifically configured to:
Determining a current proper working mode according to the magnitude relation between the electric quantity of the power battery and a preset electric quantity threshold value;
and switching the original working mode of the hybrid power coupling system to the proper working mode.
9. A vehicle comprising a hybrid coupling system and a controller as claimed in any one of claims 1-4, 6-8.
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