WO2021209054A1 - 车辆驱动控制方法、系统 - Google Patents

车辆驱动控制方法、系统 Download PDF

Info

Publication number
WO2021209054A1
WO2021209054A1 PCT/CN2021/087906 CN2021087906W WO2021209054A1 WO 2021209054 A1 WO2021209054 A1 WO 2021209054A1 CN 2021087906 W CN2021087906 W CN 2021087906W WO 2021209054 A1 WO2021209054 A1 WO 2021209054A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
engine
torque
parallel
maximum
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.)
Ceased
Application number
PCT/CN2021/087906
Other languages
English (en)
French (fr)
Inventor
李云飞
陈其林
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.)
Great Wall Motor Co Ltd
Original Assignee
Great Wall Motor 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 Great Wall Motor Co Ltd filed Critical Great Wall Motor Co Ltd
Priority to EP21789334.6A priority Critical patent/EP4067185A4/en
Priority to US17/790,292 priority patent/US20230038622A1/en
Publication of WO2021209054A1 publication Critical patent/WO2021209054A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/44—Series-parallel type
    • B60K6/442—Series-parallel switching type
    • 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
    • B60W10/11—Stepped 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
    • B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
    • 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
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/30—Control strategies involving selection of transmission gear ratio
    • 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
    • B60W2510/06—Combustion engines, Gas turbines
    • B60W2510/0638—Engine 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
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/06—Combustion engines, Gas turbines
    • B60W2510/0657—Engine torque
    • 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
    • B60W2510/06—Combustion engines, Gas turbines
    • B60W2510/0666—Engine power
    • 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
    • B60W2510/08—Electric propulsion units
    • B60W2510/081—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
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/08—Electric propulsion units
    • B60W2510/083—Torque
    • 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
    • B60W2510/08—Electric propulsion units
    • B60W2510/085—Power
    • 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
    • B60W2510/10—Change speed gearings
    • B60W2510/1005—Transmission ratio engaged
    • 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
    • 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
    • B60W2540/00—Input parameters relating to occupants
    • B60W2540/10—Accelerator pedal position
    • 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
    • B60W2710/0644—Engine 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
    • B60W2710/06—Combustion engines, Gas turbines
    • B60W2710/0666—Engine torque
    • 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
    • B60W2710/081—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
    • B60W2710/08—Electric propulsion units
    • B60W2710/083—Torque
    • 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
    • B60W2710/086—Power
    • 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
    • B60W2710/1005—Transmission ratio engaged
    • 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

Definitions

  • the present disclosure relates to the field of vehicle technology, and in particular to a vehicle drive control method and system.
  • Hybrid vehicles are a combination of traditional internal combustion engine vehicles and pure electric vehicles, and have the advantages of both internal combustion engine vehicles and pure electric vehicles.
  • Most hybrid vehicles have the following three operating modes: pure electric operation mode (the engine does not work), series operation mode (the engine and the drive motor work in series), and the parallel operation mode (the drive motor and the engine work in parallel). Different operating modes are the main ones.
  • the present disclosure aims to propose a vehicle drive control method, so that the vehicle can meet the user's greater power demand.
  • a vehicle drive control method comprising: obtaining request information reflecting a user's power demand of the vehicle and performance information reflecting the power performance of the vehicle; the comparison result of the request information and the performance information shows When the power performance of the vehicle cannot meet the power demand of the user for the vehicle, determine whether the vehicle meets the conditions for activating the parallel operation mode according to the request information and the performance information; and when the vehicle meets the requirements for activating the parallel operation mode; Under the condition of the operation mode, the parallel operation mode of the vehicle is activated, so that the vehicle outputs the power corresponding to the request information in the parallel operation mode.
  • the request information includes: vehicle target torque and engine power parameters;
  • the performance information includes: vehicle maximum parallel torque, vehicle maximum series torque, and engine power parameter range, wherein the engine power parameter range is configured In order to reflect the maximum parallel operation capacity of the engine after the vehicle enters the parallel operation mode; and the judging whether the vehicle satisfies the conditions for activating the parallel operation mode according to the request information and the performance information includes: In the case of conditions, it is determined that the vehicle satisfies the conditions for activating the parallel operation mode: the engine power parameter is within the engine power parameter range; the vehicle target torque is greater than the vehicle maximum series torque; and The maximum parallel torque of the entire vehicle is greater than the maximum series torque of the entire vehicle; and otherwise, it is determined that the vehicle does not meet the conditions for activating the parallel operation mode.
  • the engine power parameter includes: the target engine speed and the corresponding target engine torque; the engine power parameter range includes: the engine parallel speed range and the engine parallel torque range, wherein the engine parallel torque range is configured as a correlation In the engine target speed; and, the engine power parameter is within the engine power parameter range includes: the engine target speed is within the engine parallel speed range, and the engine target torque is within the engine parallel torque Within range.
  • the engine power parameter includes a target engine speed and its corresponding target engine torque
  • the vehicle drive control method further includes obtaining the target engine speed by the following steps: obtaining a parallel target gear; and according to the parallel connection The target gear determines the target engine speed.
  • the obtaining the parallel target gear includes: obtaining a vehicle speed and its change; and determining the parallel target gear according to the vehicle speed and its change.
  • the vehicle drive control method further includes determining the maximum series torque of the vehicle by the following steps: obtaining the torque output by the drive motor when the generator is at the maximum power generation and the drive motor when the battery of the vehicle is at high voltage. The sum of the maximum torque that can be output in the state; obtaining the maximum output torque of the drive motor reflecting the characteristics of the drive motor; and determining the smaller of the sum and the maximum output torque of the drive motor as the whole The maximum tandem torque of the vehicle.
  • the vehicle drive control method further includes determining the maximum parallel torque of the whole vehicle by the following steps: obtaining the maximum output torque of the engine, wherein the maximum output torque of the engine is configured to be determined based on the parallel torque range of the engine; obtaining The maximum torque that the drive motor can output when the battery of the vehicle is in a high-voltage state and the maximum output torque of the drive motor reflecting the characteristics of the drive motor, whichever is smaller; and the maximum output torque of the engine is compared with The obtained sum of the smaller one of the two is determined as the maximum parallel torque of the entire vehicle.
  • this embodiment also provides a vehicle drive control system, the vehicle drive control system is configured with a controller, and the controller is used to execute the above-mentioned vehicle drive control method.
  • this embodiment also provides a computer-readable storage medium on which computer program instructions are stored, and the instructions are used to make a machine execute the above-mentioned vehicle drive control method.
  • the vehicle drive control method described in the present disclosure has the following advantages:
  • the request information and performance information obtained by the solution of the present disclosure can reflect the power demand of the user and the power performance of the vehicle. Comparing the request information and performance information to obtain a comparison result. When the comparison result shows that the power performance of the vehicle cannot meet the power demand of the user for the vehicle, determine whether the vehicle is The conditions for activating the parallel operation mode are met. Only when the conditions for activating the parallel operation mode are met, the parallel operation mode of the vehicle will be activated, so that the vehicle can output the power relative to the request information, and then give priority to the vehicle’s power Power demand to ensure the power performance of the vehicle.
  • Fig. 1 is a flowchart of a vehicle drive control method according to an embodiment of the disclosure
  • FIG. 3 is a flow chart of determining the maximum series torque of the entire vehicle according to the embodiment of the disclosure.
  • FIG. 5 is a flowchart of a method for acquiring a parallel target speed of an engine according to an embodiment of the disclosure
  • FIG. 6 is a flowchart of a method for obtaining a parallel target gear reflecting user needs according to an embodiment of the present disclosure.
  • FIG. 7 is a method for judging whether the vehicle satisfies the conditions for activating the parallel operation mode according to the embodiment of the disclosure.
  • the pure electric drive mode is to realize the driving of the vehicle through the cooperation of the high-voltage battery and the drive motor (the generator is only after the engine is started). Run, so it does not run in this mode), the series operation mode is to realize the driving of the vehicle through the series coordination operation of the engine, generator, and driving motor, and the parallel operation mode is to realize the driving of the vehicle through the engine, and the generator and the driving motor operate separately.
  • Different vehicles have different proportions in the operation process of each mode, some are mainly in series operation mode, and some are mainly in parallel operation mode.
  • the efficiency of the engine is only considered in the driving process of the vehicle. When the vehicle has a large power demand, it is easily restricted by work efficiency and cannot meet the power demand of the user's entire vehicle.
  • Fig. 1 is a flowchart of a vehicle drive control method of the present disclosure, as shown in Fig. 1.
  • the vehicle drive control method includes:
  • S101 Obtain request information reflecting the power demand of the user for the vehicle and performance information reflecting the power performance of the vehicle.
  • the request information is a user's power demand request, which mainly includes the target torque of the vehicle and the engine power parameter, and the engine power parameter mainly reflects the parallel power target situation of the engine.
  • the performance information mainly reflects the power performance of the vehicle itself, and different vehicles have different power performance, that is, the power performance of the vehicle is determined by the characteristics of the vehicle itself.
  • the performance information includes: the maximum parallel torque of the entire vehicle, the maximum series torque of the entire vehicle, and the range of engine power parameters, and the maximum parallel torque of the entire vehicle is the maximum output torque of the entire vehicle after entering the parallel operation mode;
  • the maximum series torque is the maximum output torque of the vehicle in the series operation mode;
  • the engine power parameter range is the range of the engine power parameter when the engine is working normally, wherein the engine power parameter range is configured as Reflects the maximum parallel working capacity of the engine after the vehicle enters the parallel operation mode.
  • the comparison result of the request information and the performance information shows that the power performance of the vehicle cannot meet the user's power demand of the vehicle.
  • the specific performance is that the target torque of the vehicle is greater than the vehicle maximum in the series operation mode.
  • Series torque that is, the vehicle cannot meet the user's torque demand even if the maximum torque is output in the series operation mode.
  • it is determined whether the vehicle meets the requirement of activating parallel operation according to the request information and the performance information The conditions of the model.
  • the parallel operation mode can be activated to perform subsequent related operations only if the conditions of the parallel operation mode are satisfied.
  • activating the parallel operation mode requires the vehicle to meet the following condition 1, condition 2, and condition 3:
  • the engine power parameter is within the engine power parameter range, that is, the engine power parameter needs to meet the maximum power parameter range that the engine can output;
  • the target torque of the whole vehicle is greater than the maximum series torque of the whole vehicle. This condition is used to reflect that the maximum series torque of the vehicle can no longer meet the target torque of the whole vehicle, where the maximum series torque of the whole vehicle can be measured by Get directly
  • Condition 3 The maximum parallel torque of the whole vehicle is greater than the maximum series torque of the whole vehicle. This condition is used to reflect that the power limit that the vehicle can output should be the maximum parallel torque of the whole vehicle, not the maximum series torque of the whole vehicle. The conditions are determined by the characteristics of the vehicle itself, and the maximum parallel torque of the vehicle can also be directly obtained through measurement.
  • the engine power parameter includes: a target engine speed and its corresponding target engine torque.
  • the engine power parameter range includes: an engine parallel speed range and an engine parallel torque range, wherein the engine parallel torque range is configured to be associated with the engine target speed, and the engine power parameter is within the engine power parameter range.
  • the target engine speed is within the parallel engine speed range, and the engine target torque is within the engine parallel torque range.
  • Figure 2 is a schematic diagram of the engine power parameter range.
  • N max is the maximum parallel operating speed
  • N min is the minimum parallel operating speed
  • L max is the curve of the maximum parallel operating torque in the interval [N min , N max ]
  • L min is the curve of parallel minimum operating torque in the interval of [N min , N max ]
  • L1 is the optimal operating curve (OOL, Optimal Operation Line) of the engine.
  • A represents the range of the engine power parameter, that is, the condition 1 is shown in FIG. 2 as the engine target speed and its corresponding engine target torque need to be kept in the A region. Among them, the abscissa is the rotation speed, and the ordinate is the torque.
  • FIG. 3 is a flow chart for determining the maximum series torque of the entire vehicle. As shown in FIG. 3, in the condition 2, the maximum series torque of the entire vehicle is determined by the following steps:
  • S301 Obtain the sum of the torque output by the drive motor when the generator is at the maximum generated power and the maximum torque that the drive motor can output when the battery of the vehicle is at a high voltage;
  • S303 Determine the smaller one of the sum value and the maximum output torque of the drive motor as the maximum series torque of the entire vehicle.
  • Min[a, b] means the smaller of a and b.
  • the maximum series torque of the whole vehicle is the smaller of the sum obtained in step S301 and the maximum output torque of the drive motor, that is, the above two limit each other, and the minimum value represents the output of the drive motor The maximum torque.
  • FIG. 4 is a flowchart for determining the maximum parallel torque of the entire vehicle. As shown in FIG. 4, in the condition 3, the maximum parallel torque of the entire vehicle is determined by the following steps:
  • S401 Acquire the maximum output torque of the engine, where the maximum output torque of the engine is configured to be determined based on the parallel torque range of the engine, and in fact the maximum output torque of the engine is the maximum value of the parallel torque range of the engine;
  • S402 Obtain the smaller of the following two: the maximum torque that the drive motor can output when the battery of the vehicle is in a high-voltage state; the maximum output torque of the drive motor that reflects the characteristics of the drive motor; and
  • S403 Determine the sum of the maximum output torque of the engine and the obtained smaller one as the maximum parallel torque of the entire vehicle.
  • the maximum parallel torque of the whole vehicle the maximum output torque of the engine + Min [the maximum torque that the drive motor can output when the battery of the vehicle is in a high-voltage state, and the maximum output torque of the drive motor that reflects the characteristics of the drive motor] .
  • Min[a, b] means to take the smaller of a and b.
  • FIG. 5 is a flowchart of a method for acquiring a parallel target speed of an engine in an embodiment of the present disclosure.
  • the engine power parameter includes the target engine speed and the corresponding target torque of the engine
  • the vehicle drive control method further includes obtaining the target engine speed through the following steps:
  • S502 Determine the target engine speed according to the parallel target gear.
  • FIG. 6 is a flow chart of the method for obtaining a parallel target gear that reflects user needs.
  • the method for obtaining a parallel target gear that reflects user needs includes:
  • S602 Determine the parallel target gear according to the vehicle speed and its changes.
  • the determination of the first gear and the second gear is taken as an example for detailed description.
  • the first gear is determined as the parallel target gear;
  • the vehicle speed is greater than the second vehicle speed At the threshold, the second gear is determined as the parallel target gear.
  • the target engine speed can be calculated based on the following formula:
  • Engine target speed vehicle speed * transmission ratio
  • the transmission ratio is configured to be associated with the parallel target gear.
  • each parallel target gear corresponds to a transmission ratio.
  • FIG. 7 is a flow chart of a specific implementation manner for judging whether a vehicle meets the conditions for activating the parallel operation mode according to the present disclosure.
  • the vehicle drive control method includes:
  • S701 Obtain the vehicle target torque, the parallel target gear and the corresponding engine target torque, the vehicle maximum parallel torque, the vehicle maximum series torque, the engine parallel speed range and the engine parallel torque range;
  • S702 Determine the target engine speed and its corresponding target engine torque according to the parallel target gear
  • S703 Determine whether the target engine speed is within the parallel engine speed range, and the engine target torque is within the engine parallel torque range;
  • S704 Determine that the target torque of the entire vehicle is greater than the maximum series torque of the entire vehicle
  • S705 Determine that the maximum parallel torque of the entire vehicle is greater than the maximum series torque of the entire vehicle
  • S707 In a case where the judgment result of any one of S703, S704, and S705 is no, it is judged that the vehicle does not satisfy the condition for activating the parallel operation mode.
  • the series operation mode when the whole vehicle has a large power demand, when the series operation mode has not been able to meet the power demand, it is possible to consider whether the vehicle meets the conditions for activating the parallel operation mode, so that the vehicle can be based on the actual situation of the vehicle. Activating the parallel operation mode to output power corresponding to the request information, thereby ensuring normal power performance.
  • the conditions for activating the parallel operation mode include: the engine power parameter is within the engine power parameter range; the vehicle target torque is greater than the vehicle maximum series torque; and the vehicle maximum parallel torque is greater than the The maximum tandem torque of the whole vehicle.
  • the present disclosure also provides a vehicle drive control system, the vehicle drive control system is equipped with a controller, and the controller is used to execute the above-mentioned vehicle drive control method.
  • the vehicle drive control system includes a processor and a memory, and the execution steps of the vehicle drive control method are stored in the memory as a program unit, and the processor executes the program unit stored in the memory to realize the corresponding Function.
  • the processor contains the kernel, and the kernel calls the corresponding program unit from the memory.
  • the kernel can be set with one or more, and the control of the vehicle drive can be realized by adjusting the kernel parameters.
  • the memory may include non-permanent memory in computer-readable media, random access memory (RAM) and/or non-volatile memory, such as read-only memory (ROM) or flash memory (flash RAM), and the memory includes at least one Memory chip.
  • RAM random access memory
  • ROM read-only memory
  • flash RAM flash random access memory
  • the embodiments of the present disclosure provide a machine-readable storage medium having instructions stored on the machine-readable storage medium, and the instructions are used to make a machine execute the aforementioned vehicle drive control method.
  • the embodiment of the present disclosure provides a processor, the processor is used to run a program, wherein the vehicle driving control method is executed when the program is running.
  • the application also provides a computer program product, which when executed on a data processing device, is suitable for executing a program that initializes the steps of the vehicle drive control method in the embodiment.
  • this application can be provided as methods, systems, or computer program products. Therefore, this application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, this application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
  • the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • the computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
  • processors CPUs
  • input/output interfaces network interfaces
  • memory volatile and non-volatile memory
  • the memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and/or non-volatile memory, such as read-only memory (ROM) or flash memory (flash RAM).
  • RAM random access memory
  • ROM read-only memory
  • flash RAM flash memory
  • Computer-readable media include permanent and non-permanent, removable and non-removable media, and information storage can be realized by any method or technology.
  • the information can be computer-readable instructions, data structures, program modules, or other data.
  • Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, CD-ROM, digital versatile disc (DVD) or other optical storage, Magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media can be used to store information that can be accessed by computing devices. According to the definition in this article, computer-readable media does not include transitory media, such as modulated data signals and carrier waves.

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)

Abstract

一种车辆驱动控制方法、系统，车辆驱动控制方法包括：获取反映用户对车辆的动力需求的请求信息和反映车辆动力性能的性能信息（S101）；在请求信息与性能信息的比较结果示出车辆动力性能无法满足用户对车辆的动力需求时，根据请求信息和性能信息判断车辆是否满足激活并联运行模式的条件（S102）；以及在车辆满足激活并联运行模式的条件的情况下，激活车辆的所述并联运行模式，以使得车辆在并联运行模式下输出与请求信息相对应的动力（S103）。

Description

车辆驱动控制方法、系统
相关申请的交叉引用
本公开要求在2020年04月17日提交中国专利局、申请号为202010307158.9、名称为“车辆驱动控制方法、系统”的中国专利申请的优先权，其全部内容通过引用结合在本公开中。
技术领域
本公开涉及车辆技术领域，特别涉及一种车辆驱动控制方法、系统。
背景技术
混合动力车辆是传统内燃机车辆与纯电动车辆的结合，具有内燃机车辆和纯电动车辆两者的优势。大部分混合动力车辆具备以下三种运行模式：纯电动运行模式(发动机不工作)、串联运行模式(发动机与驱动电机串联工作)以及并联运行模式(驱动电机与发动机并联工作)，不同的车型以不同的运行模式为主。
目前，车辆在进行驱动的过程中仅单一考虑发动机的工作效率，在车辆具有较大的动力需求时，容易受到工作效率的限制，无法满足车辆的动力需求。
发明内容
有鉴于此，本公开旨在提出一种车辆驱动控制方法，以使得车辆能够满足用户较大的动力需求。
为达到上述目的，本公开的技术方案是这样实现的：
一种车辆驱动控制方法，所述车辆驱动控制方法包括：获取反映用户对车辆的动力需求的请求信息和反映车辆动力性能的性能信息；在所述请求信息与所述性能信息的比较结果示出所述车辆动力性能无法满足用户对所述 车辆的动力需求时，根据所述请求信息和所述性能信息判断所述车辆是否满足激活并联运行模式的条件；以及在所述车辆满足激活所述并联运行模式的条件的情况下，激活所述车辆的所述并联运行模式，以使得所述车辆在所述并联运行模式下输出与所述请求信息相对应的动力。
优选地，所述请求信息包括：整车目标扭矩以及发动机动力参数；所述性能信息包括：整车最大并联扭矩、整车最大串联扭矩以及发动机动力参数范围，其中所述发动机动力参数范围被配置为反映发动机在车辆进入并联运行模式后的并联最大工作能力；并且，所述根据所述请求信息和所述性能信息判断车辆是否满足激活并联运行模式的条件包括：在所述车辆满足下述所有条件的情况下，判断所述车辆满足激活所述并联运行模式的条件：所述发动机动力参数处于所述发动机动力参数范围内；所述整车目标扭矩大于所述整车最大串联扭矩；以及所述整车最大并联扭矩大于所述整车最大串联扭矩；以及否则，判断所述车辆不满足激活所述并联运行模式的条件。
优选地，所述发动机动力参数包括：发动机目标转速及其对应的发动机目标扭矩；所述发动机动力参数范围包括：发动机并联转速范围以及发动机并联扭矩范围，其中所述发动机并联扭矩范围被配置为关联于所述发动机目标转速；并且，所述发动机动力参数处于所述发动机动力参数范围内包括：所述发动机目标转速处于所述发动机并联转速范围内，且所述发动机目标扭矩处于所述发动机并联扭矩范围内。
优选地，所述发动机动力参数包括发动机目标转速及其对应的发动机目标扭矩，且所述车辆驱动控制方法还包括通过以下步骤获取所述发动机目标转速：获取并联目标档位；以及根据所述并联目标档位确定所述发动机目标转速。
优选地，所述获取并联目标档位包括：获取车速及其变化情况；以及根据所述车速及其变化情况确定所述并联目标档位。
优选地，所述根据所述并联目标档位确定所述发动机目标转速包括：基于下述公式计算所述发动机目标转速：发动机目标转速＝车速*传动比；其中，所述传动比被配置为与所述并联目标档位相关联。
优选地，所述车辆驱动控制方法还包括通过以下步骤确定所述整车最大串联扭矩：获取驱动电机在发电机处于最大发电功率下输出的扭矩与所述驱动电机在所述车辆的电池处于高压状态下能够输出的最大扭矩的和值；获取反映所述驱动电机特性的驱动电机最大输出扭矩；以及将所述和值与所述驱动电机最大输出扭矩中较小之一者确定为所述整车最大串联扭矩。
优选地，所述车辆驱动控制方法还包括通过以下步骤确定所述整车最大并联扭矩：获取发动机最大输出扭矩，其中所述发动机最大输出扭矩被配置为基于所述发动机并联扭矩范围而确定；获取所述驱动电机在所述车辆的电池处于高压状态下能够输出的最大扭矩和反映所述驱动电机特性的驱动电机最大输出扭矩两者中的较小一者；以及将所述发动机最大输出扭矩与所获取的两者中较小一者的和值确定为所述整车最大并联扭矩。
另外，本实施例还提供一种车辆驱动控制系统，所述车辆驱动控制系统配置有控制器，所述控制器用于执行上述的车辆驱动控制方法。
另外，本实施例还提供一种计算机可读存储介质，其上存储有计算机程序指令，该指令用于使得机器执行上述车辆驱动控制方法。
相对于现有技术，本公开所述的车辆驱动控制方法具有以下优势：
本公开方案获取到的请求信息和性能信息，可以反映用户的动力需求和车辆的动力性能情况。比较所述请求信息和性能信息获得比较结果，当所述比较结果示出车辆的动力性能无法满足用户对所述车辆的动力需求时，根据所述请求信息和所述性能信息判断所述车辆是否满足激活并联运行模式的条件，只有在满足激活并联运行模式的条件的情况下，才会激活所述车辆的并联运行模式，以使得车辆可以输出与请求信息相对于的动力，进而优先考 虑车辆的动力需求，保证车辆的动力性能。
本公开的其它特征和优点将在随后的具体实施方式部分予以详细说明。
附图说明
构成本公开的一部分的附图用来提供对本公开的进一步理解，本公开的示意性实施方式及其说明用于解释本公开，并不构成对本公开的不当限定。在附图中：
图1为本公开实施方式所述的车辆驱动控制方法的流程图；
图2为本公开实施方式所述的发动机动力参数范围的示意图；
图3为本公开实施方式所述的整车最大串联扭矩的确定流程图；
图4为本公开实施方式所述的整车最大并联扭矩的确定流程图；
图5为本公开实施方式所述的发动机并联目标转速的获取方法的流程图；
图6为本公开实施方式所述的获取反映用户需求的并联目标档位的方法流程图；以及
图7为本公开实施方式所述的一种判断车辆是否满足激活所述并联运行模式的条件。
具体实施方式
需要说明的是，在不冲突的情况下，本公开中的实施方式及实施方式中的特征可以相互组合。
目前，大部分的混动车辆都具备纯电动驱动模式、串联运行模式和并联运行模式，其中，纯电动驱动模式为通过高压电池与驱动电机配合实现车辆的驱动(发电机只有在发动机启动之后才运行，故此模式下不运行)，串联运行模式为通过发动机、发电机、驱动电机的串联配合运行实现车辆的驱动，并联运行模式为通过发动机、以及发电机和驱动电机分开运行实现车辆的驱 动。不同的车辆对于各模式在运行过程中所占的比重不同，有的以串联运行模式为主，有的以并联运行模式为主。当前情况下，车辆在进行驱动的过程中仅单一考虑发动机的效率，在车辆具有较大的动力需求时，容易受到工作效率的限制，无法满足用户的整车动力需求。下面将结合多个附图对本公开的“优先考虑满足车辆动力需求”的方案进行详细的说明。
图1是本公开的一种车辆驱动控制方法的流程图，如图1所示。所述车辆驱动控制方法包括：
S101，获取反映用户对车辆的动力需求的请求信息和反映车辆动力性能的性能信息。
其中，所述请求信息为用户的动力需求请求，其主要包括整车目标扭矩和发动机动力参数，所述发动机动力参数主要反映发动机的并联动力目标情况。所述性能信息主要反映车辆本身的动力性能情况，不同车辆具有不同的动力性能，即车辆的动力性能是车辆本身的特性决定的。具体地，所述性能信息包括：整车最大并联扭矩、整车最大串联扭矩以及发动机动力参数范围，所述整车最大并联扭矩为整车在进入并联运行模式后的最大可输出扭矩；整车最大串联扭矩为整车在串联运行模式下的最大可输出扭矩；所述发动机动力参数范围为所述发动机正常工作时所述发动机动力参数所存在的范围，其中所述发动机动力参数范围被配置为反映发动机在车辆进入并联运行模式后的并联最大工作能力。
S102，在所述请求信息与所述性能信息的比较结果示出所述车辆动力性能无法满足用户对所述车辆的动力需求时，根据所述请求信息和所述性能信息判断所述车辆是否满足激活并联运行模式的条件。
S103，在所述车辆满足激活所述并联运行模式的条件的情况下，激活所述车辆的所述并联运行模式，以使得所述车辆在所述并联运行模式下输出与所述请求信息相对应的动力。
其中，所述请求信息与所述性能信息的比较结果示出所述车辆动力性能无法满足用户对所述车辆的动力需求具体表现为所述整车目标扭矩大于车辆在串联运行模式下整车最大串联扭矩，即所述整车在串联运行模式下即使输出最大扭矩也无法满足用户的扭矩需求，在此情况下，根据所述请求信息和所述性能信息来判断所述车辆是否满足激活并联运行模式的条件。其中，只有在满足所述并联运行模式的条件的前提下，才能激活所述并联运行模式以执行后续相关操作。
进一步优选地，激活所述并联运行模式需要车辆满足以下条件1、条件2和条件3：
条件1、所述发动机动力参数处于所述发动机动力参数范围内，即所述发动机动力参数需要满足发动机所能输出的最大动力参数范围；
条件2、所述整车目标扭矩大于所述整车最大串联扭矩，该条件用于体现车辆的最大串联扭矩已无法满足用户需求的整车目标扭矩，其中所述整车最大串联扭矩可以通过测量直接获得；
条件3、所述整车最大并联扭矩大于所述整车最大串联扭矩，该条件用于体现车辆所能够输出的动力极限应该是整车最大并联扭矩，而不是整车最大串联扭矩，其中，该条件由车辆本身特性决定，所述整车最大并联扭矩也可以通过测量直接获得。
若不满足上述条件1、2、3中的任一者，则判断所述车辆不满足激活所述并联运行模式的条件。
进一步优选地，所述发动机动力参数包括：发动机目标转速及其对应的发动机目标扭矩。所述发动机动力参数范围包括：发动机并联转速范围以及发动机并联扭矩范围，其中所述发动机并联扭矩范围被配置为关联于所述发动机目标转速，所述发动机动力参数处于所述发动机动力参数范围内包括：所述发动机目标转速处于所述发动机并联转速范围内，且所述发动机目标扭 矩处于所述发动机并联扭矩范围内。图2是发动机动力参数范围的示意图，如图2所示，N max为并联最大工作转速；N min为并联最小工作转速；L max为[N min，N max]区间并联最大工作扭矩的曲线；L min为[N min，N max]区间并联最小工作扭矩的曲线，L1为发动机最优工作曲线(OOL，Optimal Operation Line)。“A”表示所述发动机动力参数范围，即所述条件1在图2中表示为所述发动机目标转速及其对应的发动机目标扭矩需要保持在A区域中。其中，横坐标为转速，纵坐标为扭矩。
进一步优选地，图3是整车最大串联扭矩的确定流程图，如图3所示，在所述条件2中，所述整车最大串联扭矩通过以下步骤被确定：
S301，获取驱动电机在发电机处于最大发电功率下输出的扭矩与所述驱动电机在所述车辆的电池处于高压状态下能够输出的最大扭矩的和值；
S302，获取反映所述驱动电机特性的驱动电机最大输出扭矩；以及
S303，将所述和值与所述驱动电机最大输出扭矩中较小之一者确定为所述整车最大串联扭矩。
换句话说，整车最大串联扭矩＝Min[驱动电机在发电机处于最大发电功率下输出的扭矩+在所述车辆的电池处于高压状态下能够输出的最大扭矩，反映所述驱动电机特性的驱动电机最大输出扭矩]；其中，“Min[a，b]”表示取a和b中的较小一者。所述整车最大串联扭矩为所述步骤S301求得的和值与所述驱动电机最大输出扭矩中较小之一者，即上述两者互相限制，取最小值表示所述驱动电机所能输出的最大扭矩。
进一步优选地，图4是确定整车最大并联扭矩的流程图，如图4所示，在所述条件3中，所述整车最大并联扭矩通过以下步骤被确定：
S401，获取发动机最大输出扭矩，其中所述发动机最大输出扭矩被配置为基于所述发动机并联扭矩范围而确定，实际上发动机最大输出扭矩为所述发动机并联扭矩范围的最大值；
S402，获取以下两者中较小一者：所述驱动电机在所述车辆的电池处于高压状态下能够输出的最大扭矩；反映所述驱动电机特性的驱动电机最大输出扭矩；以及
S403，将所述发动机最大输出扭矩与所获取的两者中较小一者的和值确定为所述整车最大并联扭矩。
换句话说，整车最大并联扭矩＝发动机最大输出扭矩+Min[所述驱动电机在所述车辆的电池处于高压状态下能够输出的最大扭矩，反映所述驱动电机特性的驱动电机最大输出扭矩]。其中，“Min[a，b]”表示取a和b中的较小一者。
进一步优选地，图5是本公开实施例的一种发动机并联目标转速的获取方法的流程图，如图5所示，所述发动机动力参数包括发动机目标转速及其对应的发动机目标扭矩，且所述车辆驱动控制方法还包括通过以下步骤获取所述发动机目标转速：
S501，获取并联目标档位；以及
S502，根据所述并联目标档位确定所述发动机目标转速。
其中，S501步骤中所述并联目标档位由车速决定。优选地，图6是所述获取反映用户需求的并联目标档位的方法流程图，如图6所示，所述获取反映用户需求的并联目标档位的方法包括：
S601，获取车速及其变化情况；以及
S602，根据所述车速及其变化情况确定所述并联目标档位。
具体地，以一档和二档的确定为例进行详细说明。当车速变化情况示出车速由高到低且所述车速大于第一车速阈值时，将一档确定作为并联目标档位；当车速变化情况示出车速由低到高所述车速大于第二车速阈值时，将二档确定作为并联目标档位。
其中，所述502步骤中，所述发动机目标转速可以基于下述公式计算得 到：
发动机目标转速＝车速*传动比；
其中，所述传动比被配置为与所述并联目标档位相关联。具体地，每一并联目标档位对应一个传动比。
图7为本公开的一种判断车辆是否满足激活所述并联运行模式的条件，具体实施方式的流程图，如图7所示，所述车辆驱动控制方法包括：
S701，获取整车目标扭矩、并联目标档位及其对应的发动机目标扭矩、整车最大并联扭矩、整车最大串联扭矩以及发动机并联转速范围以及发动机并联扭矩范围；
S702，根据所述并联目标档位确定所述发动机目标转速及其对应的发动机目标扭矩；
S703，判断所述发动机目标转速是否处于所述发动机并联转速范围内，且所述发动机目标扭矩处于所述发动机并联扭矩范围内；
S704，判断所述整车目标扭矩大于所述整车最大串联扭矩；
S705，判断所述整车最大并联扭矩大于所述整车最大串联扭矩；
S706，在所述S703、S704和S705的判断结果都为是的情况下，判断车辆满足激活所述并联运行模式的条件；
S707，在所述S703、S704和S705中任意一个判断结果为否的情况下，判断车辆不满足激活所述并联运行模式的条件。
其中，通过上述实施方式，可以判断出车辆是否满足激活并联运行模式的条件。
通过上述的实施方式，可以在整车由较大的动力需求时，当串联运行模式已经不能够满足所述动力需求时，考虑车辆是否满足激活并联运行模式的条件，使得车辆可以根据车辆实际情况，激活所述并联运行模式从而输出与所述请求信息相对应的动力，进而保证正常动力性能。其中，激活并联运行 模式的条件包括：所述发动机动力参数处于所述发动机动力参数范围内；所述整车目标扭矩大于所述整车最大串联扭矩；以及所述整车最大并联扭矩大于所述整车最大串联扭矩。
此外，本公开还提供一种车辆驱动控制系统，所述车辆驱动控制系统配置有控制器，所述控制器用于执行上述的车辆驱动控制方法。
在其他实施例中，所述车辆驱动控制系统包括处理器和存储器，上述车辆驱动控制方法的执行步骤作为程序单元存储在存储器中，由处理器执行存储在存储器中的上述程序单元来实现相应的功能。
处理器中包含内核，由内核去存储器中调取相应的程序单元。内核可以设置一个或以上，通过调整内核参数来实现车辆驱动的控制。
存储器可能包括计算机可读介质中的非永久性存储器，随机存取存储器(RAM)和/或非易失性内存等形式，如只读存储器(ROM)或闪存(flash RAM)，存储器包括至少一个存储芯片。
本公开实施例提供了一种机器可读存储介质，该机器可读存储介质上存储有指令，该指令用于使得机器执行上述的车辆驱动控制方法。
本公开实施例提供了一种处理器，所述处理器用于运行程序，其中，所述程序运行时执行所述车辆驱动控制方法。
本申请还提供了一种计算机程序产品，当在数据处理设备上执行时，适于执行初始化有实施例中的所述车辆驱动控制方法步骤的程序。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、设备(系统)、和计算机程序 产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
在一个典型的配置中，计算设备包括一个或多个处理器(CPU)、输入/输出接口、网络接口和内存。
存储器可能包括计算机可读介质中的非永久性存储器，随机存取存储器(RAM)和/或非易失性内存等形式，如只读存储器(ROM)或闪存(flash RAM)。存储器是计算机可读介质的示例。
计算机可读介质包括永久性和非永久性、可移动和非可移动媒体可以由任何方法或技术来实现信息存储。信息可以是计算机可读指令、数据结构、程序的模块或其他数据。计算机的存储介质的例子包括，但不限于相变内存(PRAM)、静态随机存取存储器(SRAM)、动态随机存取存储器(DRAM)、 其他类型的随机存取存储器(RAM)、只读存储器(ROM)、电可擦除可编程只读存储器(EEPROM)、快闪记忆体或其他内存技术、只读光盘只读存储器(CD-ROM)、数字多功能光盘(DVD)或其他光学存储、磁盒式磁带，磁带磁磁盘存储或其他磁性存储设备或任何其他非传输介质，可用于存储可以被计算设备访问的信息。按照本文中的界定，计算机可读介质不包括暂存电脑可读媒体(transitory media)，如调制的数据信号和载波。
还需要说明的是，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、商品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、商品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括要素的过程、方法、商品或者设备中还存在另外的相同要素。
以上所述仅为本公开的较佳实施方式而已，并不用以限制本公开，凡在本公开的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本公开的保护范围之内。

Claims (11)

  1. 一种车辆驱动控制方法，其特征在于，所述车辆驱动控制方法包括：
    获取反映用户对车辆的动力需求的请求信息和反映车辆动力性能的性能信息；
    在所述请求信息与所述性能信息的比较结果示出所述车辆动力性能无法满足用户对所述车辆的动力需求时，根据所述请求信息和所述性能信息判断所述车辆是否满足激活并联运行模式的条件；以及
    在所述车辆满足激活所述并联运行模式的条件的情况下，激活所述车辆的所述并联运行模式，以使得所述车辆在所述并联运行模式下输出与所述请求信息相对应的动力。
  2. 根据权利要求1所述的车辆驱动控制方法，其特征在于，
    所述请求信息包括：整车目标扭矩以及发动机动力参数；
    所述性能信息包括：整车最大并联扭矩、整车最大串联扭矩以及发动机动力参数范围，其中所述发动机动力参数范围被配置为反映发动机在车辆进入并联运行模式后的并联最大工作能力；
    并且，所述根据所述请求信息和所述性能信息判断车辆是否满足激活并联运行模式的条件包括：
    在所述车辆满足下述所有条件的情况下，判断所述车辆满足激活所述并联运行模式的条件：所述发动机动力参数处于所述发动机动力参数范围内；所述整车目标扭矩大于所述整车最大串联扭矩；以及所述整车最大并联扭矩大于所述整车最大串联扭矩；以及
    否则，判断所述车辆不满足激活所述并联运行模式的条件。
  3. 根据权利要求2所述的车辆驱动控制方法，其特征在于，
    所述发动机动力参数包括：发动机目标转速及其对应的发动机目标扭矩；
    所述发动机动力参数范围包括：发动机并联转速范围以及发动机并联扭矩范围，其中所述发动机并联扭矩范围被配置为关联于所述发动机目标转速；
    并且，所述发动机动力参数处于所述发动机动力参数范围内包括：
    所述发动机目标转速处于所述发动机并联转速范围内，且所述发动机目标扭矩处于所述发动机并联扭矩范围内。
  4. 根据权利要求2所述的车辆驱动控制方法，其特征在于，所述发动机动力参数包括发动机目标转速及其对应的发动机目标扭矩，且所述车辆驱动控制方法还包括通过以下步骤获取所述发动机目标转速：
    获取并联目标档位；以及
    根据所述并联目标档位确定所述发动机目标转速。
  5. 根据权利要求4所述的车辆驱动控制方法，其特征在于，所述获取并联目标档位包括：
    获取车速及其变化情况；以及
    根据所述车速及其变化情况确定所述并联目标档位。
  6. 根据权利要求4所述的车辆驱动控制方法，其特征在于，所述根据所述并联目标档位确定所述发动机目标转速包括：基于下述公式计算所述发动机目标转速：
    发动机目标转速＝车速*传动比；
    其中，所述传动比被配置为与所述并联目标档位相关联。
  7. 根据权利要求2所述的车辆驱动控制方法，其特征在于，所述车辆 驱动控制方法还包括通过以下步骤确定所述整车最大串联扭矩：
    获取驱动电机在发电机处于最大发电功率下输出的扭矩与所述驱动电机在所述车辆的电池处于高压状态下能够输出的最大扭矩的和值；
    获取反映所述驱动电机特性的驱动电机最大输出扭矩；以及
    将所述和值与所述驱动电机最大输出扭矩中较小之一者确定为所述整车最大串联扭矩。
  8. 根据权利要求2所述的车辆驱动控制方法，其特征在于，所述车辆驱动控制方法还包括通过以下步骤确定所述整车最大并联扭矩：
    获取发动机最大输出扭矩，其中所述发动机最大输出扭矩被配置为基于所述发动机并联扭矩范围而确定；
    获取以下两者中较小一者：所述驱动电机在所述车辆的电池处于高压状态下能够输出的最大扭矩；反映所述驱动电机特性的驱动电机最大输出扭矩；以及
    将所述发动机最大输出扭矩与所获取的两者中较小一者的和值确定为所述整车最大并联扭矩。
  9. 一种车辆驱动控制系统，其特征在于，所述车辆驱动控制系统配置有控制器，所述控制器用于执行权利要求1-8中任意一项所述的车辆驱动控制方法。
  10. 一种计算机可读存储介质，其上存储有计算机程序指令，其特征在于，该指令用于使得机器执行权利要求1-8中任意一项所述车辆驱动控制方法。
  11. 一种计算机程序产品，其特征在于，所述计算机程序产品在数据处理设备上执行时用于执行权利要求1-8中任一项所述的车辆驱动控制方法的代码部分。
PCT/CN2021/087906 2020-04-17 2021-04-16 车辆驱动控制方法、系统 Ceased WO2021209054A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP21789334.6A EP4067185A4 (en) 2020-04-17 2021-04-16 VEHICLE POWERTRAIN CONTROL METHOD AND SYSTEM
US17/790,292 US20230038622A1 (en) 2020-04-17 2021-04-16 Method and system for drive control of vehicle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010307158.9A CN112810599B (zh) 2020-04-17 2020-04-17 车辆驱动控制方法、系统
CN202010307158.9 2020-04-17

Publications (1)

Publication Number Publication Date
WO2021209054A1 true WO2021209054A1 (zh) 2021-10-21

Family

ID=75854366

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/087906 Ceased WO2021209054A1 (zh) 2020-04-17 2021-04-16 车辆驱动控制方法、系统

Country Status (4)

Country Link
US (1) US20230038622A1 (zh)
EP (1) EP4067185A4 (zh)
CN (1) CN112810599B (zh)
WO (1) WO2021209054A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114228726A (zh) * 2021-11-25 2022-03-25 中联重科股份有限公司 用于工程设备的控制方法、控制器、控制装置和工程设备

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116215498B (zh) * 2023-03-10 2025-08-05 重庆长安汽车股份有限公司 混动车辆的驱动模式切换时机判定方法、驱动模式控制方法、装置、车辆、介质及设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102275497A (zh) * 2010-06-08 2011-12-14 福特全球技术公司 混合动力电动车的动力传动系中串联驱动和并联驱动之间的转换
CN105730447A (zh) * 2014-12-10 2016-07-06 北汽福田汽车股份有限公司 一种混合动力车整车模式切换控制方法及系统
CN107539309A (zh) * 2016-06-29 2018-01-05 丰田自动车株式会社 混合动力车辆的控制装置及混合动力车辆的控制方法
JP2018001869A (ja) * 2016-06-29 2018-01-11 トヨタ自動車株式会社 ハイブリッド車両
CN109353330A (zh) * 2018-10-31 2019-02-19 重庆长安汽车股份有限公司 一种混合动力车辆、工作模式控制系统及其方法
CN109720334A (zh) * 2017-10-31 2019-05-07 丰田自动车株式会社 混合动力车辆

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3892611B2 (ja) * 1999-04-09 2007-03-14 富士重工業株式会社 ハイブリッド車の制御装置
US6553287B1 (en) * 2001-10-19 2003-04-22 Ford Global Technologies, Inc. Hybrid electric vehicle control strategy to achieve maximum wide open throttle acceleration performance
CN101445042B (zh) * 2008-10-11 2012-03-21 比亚迪股份有限公司 一种混合动力汽车
US8924057B2 (en) * 2010-03-19 2014-12-30 GM Global Technology Operations LLC Method for starting a hybrid vehicle
CN117048579A (zh) * 2011-01-13 2023-11-14 卡明斯公司 用于控制混合动力传动系中的功率输出分布的系统、方法和装置
JP5699841B2 (ja) * 2011-07-21 2015-04-15 三菱自動車工業株式会社 ハイブリッド自動車
CN102358283B (zh) * 2011-08-19 2013-12-18 奇瑞汽车股份有限公司 一种混合动力车驱动轴扭矩解析控制方法
JP5720893B2 (ja) * 2011-09-01 2015-05-20 三菱自動車工業株式会社 ハイブリット車両の制御装置
JP5578336B2 (ja) * 2012-12-11 2014-08-27 三菱自動車工業株式会社 ハイブリッド車両の制御装置
WO2014136592A1 (ja) * 2013-03-07 2014-09-12 本田技研工業株式会社 電源制御装置および電源制御方法
GB2517470B (en) * 2013-08-21 2016-07-20 Jaguar Land Rover Ltd Hybrid electric vehicle controller and method
GB2517469A (en) * 2013-08-21 2015-02-25 Jaguar Land Rover Ltd Hybrid electric vehicle controller and method
US9545913B2 (en) * 2015-03-20 2017-01-17 GM Global Technology Operations LLC Method and apparatus for controlling a powertrain system including multiple torque-generative devices
CN104760591B (zh) * 2015-04-12 2017-09-05 北京理工大学 混合动力综合控制系统
US9616881B2 (en) * 2015-05-22 2017-04-11 Ford Global Technologies, Llc System and method of controlling a powertrain
WO2016194172A1 (ja) * 2015-06-03 2016-12-08 日産自動車株式会社 ハイブリッド車両のモード遷移制御装置
DE102015222692A1 (de) * 2015-11-17 2017-05-18 Volkswagen Aktiengesellschaft Betreiben einer Antriebseinrichtung eines Hybridfahrzeuges und Hybridfahrzeug
DE102015222691A1 (de) * 2015-11-17 2017-05-18 Volkswagen Aktiengesellschaft Verfahren zum Steuern einer Antriebseinrichtung eines Hybridfahrzeuges und Hybridfahrzeug
DE102015222690B4 (de) * 2015-11-17 2025-03-27 Volkswagen Aktiengesellschaft Steuern einer Antriebseinrichtung eines Hybridfahrzeuges und Hybridfahrzeug
JP6649607B2 (ja) * 2015-12-24 2020-02-19 三菱自動車工業株式会社 ハイブリッド車両の走行制御装置
US9944285B2 (en) * 2016-03-04 2018-04-17 Ford Global Technologies, Llc Hybrid vehicle and lash mitigation strategy
JP2018134942A (ja) * 2017-02-21 2018-08-30 株式会社豊田中央研究所 ハイブリッド車両の制御装置
DE102017208654A1 (de) * 2017-05-22 2018-11-22 Volkswagen Aktiengesellschaft Verfahren zum Steuern einer Antriebseinrichtung eines Hybridfahrzeuges und Hybridfahrzeug
FR3071799B1 (fr) * 2017-10-04 2021-08-06 Psa Automobiles Sa Controle des couplages/decouplages d’une machine motrice non-thermique d’un vehicule en fonction d’un couple cible ou de consigne
CN109760661B (zh) * 2017-11-03 2021-02-26 宝沃汽车（中国）有限公司 车辆的启动方法、装置及具有其的车辆
JP6915501B2 (ja) * 2017-11-08 2021-08-04 トヨタ自動車株式会社 車両の制御装置
GB2568874B (en) * 2017-11-24 2020-06-17 Jaguar Land Rover Ltd Method of controlling a hybrid vehicle
US10773710B2 (en) * 2018-05-09 2020-09-15 Ford Global Technologies, Llc Systems and methods for a hybrid vehicle with a manual shift transmission
CN210212022U (zh) * 2019-07-24 2020-03-31 长城汽车股份有限公司 用于车辆的动力传动系统及车辆
CN110979307B (zh) * 2019-12-31 2022-05-03 义乌吉利动力总成有限公司 一种双电机动力系统串并联模式切换的控制方法及装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102275497A (zh) * 2010-06-08 2011-12-14 福特全球技术公司 混合动力电动车的动力传动系中串联驱动和并联驱动之间的转换
CN105730447A (zh) * 2014-12-10 2016-07-06 北汽福田汽车股份有限公司 一种混合动力车整车模式切换控制方法及系统
CN107539309A (zh) * 2016-06-29 2018-01-05 丰田自动车株式会社 混合动力车辆的控制装置及混合动力车辆的控制方法
JP2018001869A (ja) * 2016-06-29 2018-01-11 トヨタ自動車株式会社 ハイブリッド車両
CN109720334A (zh) * 2017-10-31 2019-05-07 丰田自动车株式会社 混合动力车辆
CN109353330A (zh) * 2018-10-31 2019-02-19 重庆长安汽车股份有限公司 一种混合动力车辆、工作模式控制系统及其方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4067185A4

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114228726A (zh) * 2021-11-25 2022-03-25 中联重科股份有限公司 用于工程设备的控制方法、控制器、控制装置和工程设备

Also Published As

Publication number Publication date
US20230038622A1 (en) 2023-02-09
CN112810599B (zh) 2022-04-12
EP4067185A4 (en) 2023-01-04
EP4067185A1 (en) 2022-10-05
CN112810599A (zh) 2021-05-18

Similar Documents

Publication Publication Date Title
US12233844B2 (en) Method for controlling interference torque, controller, equipment and medium
WO2022037651A1 (zh) 四驱电动车动力分配方法和装置
US12012093B2 (en) Vehicle drive control method and system
US11628747B2 (en) Apparatus for controlling fuel cell of environment-friendly vehicle, system including the same, and method thereof
CN112660103B (zh) 一种车辆控制模式的确定方法、装置和整车控制系统
CN118024897A (zh) 车辆增程器系统的控制方法、控制装置和存储介质
CN110609577A (zh) 电控发动机的控制方法和装置、电子设备、存储介质
US10710571B2 (en) Hybrid vehicle and method of controlling response to driving load for the same
CN110284980A (zh) 一种基于主喷角度的油量修正方法及装置
CN112810599B (zh) 车辆驱动控制方法、系统
US11208005B2 (en) Automatic APS map generating method and system
CN117841957A (zh) 一种车辆扭矩控制方法、装置、电子设备及混合动力车辆
JP6733385B2 (ja) ハイブリッド車両の制御装置
CN118257695B (zh) 发动机点火角的控制方法及电子设备
CN116677507B (zh) 发动机的停机控制方法、装置和电子设备
US12472932B2 (en) Hybrid electric vehicle and method for controlling the same
WO2025161042A1 (zh) 混动车辆工作模式控制方法、装置、混动车辆及介质
CN116834565A (zh) 增程器发电控制方法及装置
CN115352322A (zh) 用于氢燃料电池车辆的控制方法、处理器及装置
US20250187625A1 (en) Apparatus and method for controlling autonomous driving
CN115140013B (zh) 动力总成及其发电控制方法、介质和电子设备
CN116520152B (zh) 车载动力电池性能估算方法、装置和计算机设备
CN121989908A (zh) 增程式车辆的控制方法、控制系统及增程式车辆
KR20230136795A (ko) 연비 개선을 위한 차량 제어 장치 및 방법
CN117284095A (zh) 电驱系统的扭矩控制方法、装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21789334

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2021789334

Country of ref document: EP

Effective date: 20220627

NENP Non-entry into the national phase

Ref country code: DE