CN113602071A - Hybrid power system and control method - Google Patents

Hybrid power system and control method Download PDF

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Publication number
CN113602071A
CN113602071A CN202110929668.4A CN202110929668A CN113602071A CN 113602071 A CN113602071 A CN 113602071A CN 202110929668 A CN202110929668 A CN 202110929668A CN 113602071 A CN113602071 A CN 113602071A
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China
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engine
driving motor
power
gear
soc
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CN202110929668.4A
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Chinese (zh)
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王建
陈金柯
尹必峰
贾和坤
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Jiangsu University
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Jiangsu University
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Priority to CN202110929668.4A priority Critical patent/CN113602071A/en
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    • 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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
    • 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54—Transmission for changing ratio
    • B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
    • 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
    • B60W20/10—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
    • B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
    • B60W20/13—Controlling the power contribution of each of the prime movers to meet required power demand in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion
    • B60W20/14—Controlling the power contribution of each of the prime movers to meet required power demand in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion in conjunction with braking regeneration
    • 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
    • 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 hybrid power system and a control method, comprising a hybrid power source, a whole vehicle control unit and a gear shifting execution mechanism, wherein the hybrid power source comprises an engine, a main driving motor and a power generation and auxiliary driving motor; the engine, the main driving motor and the power generation and auxiliary driving motor are in power connection through a gear transmission mechanism; the gear shifting actuating mechanism is used for realizing the switching of gears; the whole vehicle control unit comprises a whole vehicle controller, and the working mode is judged in the whole vehicle controller; the vehicle control unit outputs corresponding driving signals according to the output working mode, and respectively controls the motor, the gear shifting execution mechanism and the engine.

Description

Hybrid power system and control method
Technical Field
The invention belongs to the technical field of new energy hybrid electric vehicle transmission, and particularly relates to a hybrid power system and a control method.
Background
With the increasing global fossil energy consumption, people are facing more and more serious problems of environmental pollution and resource exhaustion. Automobiles, the current leading vehicle, consume a large amount of petroleum resources each year, and the automobile holding amount will continue to increase with the development of economy. How to reduce the consumption of the oil resources and the influence on the environment of the automobile are paid attention by various automobile enterprises and governments of various countries. The automobile industry faces huge pressure nowadays, and the hybrid electric vehicle has the advantages of energy conservation, low emission and the like, so that the hybrid electric vehicle becomes the key point in the field of automobile research and development.
The existing hybrid power transmission has various types and complex technical routes, has low integration level, causes huge volume and redundant waste of cost, has poor energy-saving and emission-reducing effect due to the change of the traditional technology, greatly increases the cost due to the processing difficulty and the control difficulty, and cannot achieve the balance of production cost and use effect. In order to take design cost and work reliability into consideration, the patent describes a two-gear dual-motor hybrid transmission; the double motors can meet the requirements of power generation and driving functions in the driving process, the working range of the traditional engine is enlarged through gear adjustment, and the economy and the dynamic property are both considered.
Disclosure of Invention
Aiming at the technical defects of the existing hybrid power transmission, the invention provides a hybrid power system and a control method, which can be suitable for a mixed oil insertion passenger car and have the advantages of reliable work, compact structure and lower use and production cost.
The technical scheme adopted by the invention is as follows:
a hybrid power system comprises a hybrid power source, a whole vehicle control unit and a gear shifting execution mechanism, wherein the hybrid power source comprises an engine, a main driving motor and a power generation and auxiliary driving motor; the engine of the engine, the input shaft of the power generation and auxiliary driving motor and the output shaft of the power generation and auxiliary driving motor are in meshing transmission through a gear mechanism; the engine and the input shaft of the power generation and auxiliary driving motor are respectively in meshing transmission with the gear shift execution mechanism and the power output shaft of the engine through a gear mechanism; the power output shaft of the engine is respectively in meshing transmission with the drive motor output shaft and the main output shaft of the main drive motor through a gear mechanism; the main output shaft and the differential are in meshing transmission through a gear mechanism;
the gear shifting actuating mechanism comprises a gear shifting mechanism driving motor, a gear shifting cam, a first-gear clutch and a second-gear clutch; the first-gear clutch is in meshing transmission with the power output shaft of the engine through a first-gear mechanism; the second-gear clutch is in meshing transmission with the power output shaft of the engine through a second-gear mechanism; the gear shifting mechanism driving motor drives the gear shifting cam to rotate, so that the gear shifting cam is pressed or the clutch pressing plate mechanism is released to realize gear shifting;
the whole vehicle control unit comprises a whole vehicle controller, a BMS controller, an MCU controller, a TCU controller and an ECU controller, wherein the whole vehicle controller collects the current working information of the vehicle, and the battery BMS controller is connected with the input end of the whole vehicle controller and receives the battery information; judging the working mode in the vehicle controller according to the input information; the output end of the vehicle control unit is respectively connected with the MCU controller, the TCU controller and the ECU controller, the vehicle control unit outputs corresponding driving signals to the MCU controller, the TCU controller and the ECU controller according to the output working mode, the MCU controller, the TCU controller and the ECU controller respectively control the motor, the gear shifting executing mechanism and the engine, and the motor comprises a power generation and auxiliary driving motor and a main driving motor.
A control method of a hybrid system, comprising:
in the starting phase, the rule for selecting the working mode is as follows:
1) judging whether the vehicle is in a starting state or a stopping state;
2) if the starting state is true, the torque is determined according to the required torque TdriverJudging whether the brake state or the driving state;
3) when the battery is in a driving state, if the current SOC of the battery is>SOCmidEntering a pure electric working mode; if the current SOC of the battery<SOCmidThen enter the pure fuel oil first gear operating mode, SOCmidIs a preset SOC minimum threshold, SOCmidIs the lowest value SOC of SOCminAnd SOC maximum value SOCmaxA median value of (d);
after the starting process of the whole vehicle is finished, the rule of selecting the working mode is as follows:
4) and the vehicle speed V and the set pure electric running vehicle speed VemaxMaking comparison when the vehicle speed V is>Set pure electric driving speed VemaxWhen the vehicle speed V is higher than the first gear second-up vehicle speed V, further judging whether the vehicle speed V is higher than the first gear second-up vehicle speed V1-2；
5) When V is<V1-2When, if the battery SOC>SOCmaxOr the driver requests a torque Tdriver<T_1shif_maxEntering a pure fuel oil first-gear working mode; if SOCmin<SOC<SOCmaxOr Tdriver>T_1shif_maxEntering a hybrid first-gear operating mode, T_1shif_maxIs the first gear maximum efficient torque;
6) when V is>V1-2When, if SOC is>SOCmaxOr Tdriver<T_2shif_maxEntering a pure fuel oil second-gear working mode; if SOCmin<SOC<SOCmaxOr Tdriver>T_2shif_maxEntering a hybrid power second-gear working mode; t is_2shif_maxIs the maximum efficient torque of the second gear;
7) when the vehicle speed V is<VemaxAnd SOC<SOCmidEntering a range extending working mode;
8) when the vehicle is in a running state, the braking torque T of the driverbrake>And 0, entering an energy recovery working mode.
Further, in the pure electric working mode, the engine and the power generation and auxiliary driving motor do not work, the gear shifting mechanism driving motor does not work and is arranged in a neutral position, the storage battery supplies power to the main driving motor, and the main driving motor drives the vehicle to start.
Further, under the pure fuel oil first-gear working mode, the storage battery supplies power for the power generation and auxiliary driving motor, the power generation and auxiliary driving motor serves as a starter to start the engine, and the engine is switched into the working mode; at this time, the shift actuator engages the first clutch, and the engine outputs power.
Further, under the pure fuel oil second-gear working mode, the storage battery supplies power for the power generation and auxiliary driving motor, the power generation and auxiliary driving motor serves as a starter to start the engine, and the engine is switched into the working mode; at this time, the shift actuator engages the first clutch, and the engine outputs power.
Further, in the hybrid first-gear operating mode, if the SOC is lower than the first thresholdmin<SOC<SOCmaxWhen the power generation and auxiliary driving motor is started, the storage battery supplies power to the power generation and auxiliary driving motor, the power generation and auxiliary driving motor serves as a starter to start the engine, the engine is switched into a working mode, and the engine outputs power; when the gear shifting actuating mechanism is connected with the first gear clutch; the main driving motor is used as a generator, when the engine works in a low-efficiency area, the work of the engine is adjusted to a high-efficiency area to work, and redundant power of the engine is supplied to the main driving motor to generate power.
Further, in the hybrid first-gear operating mode, if T isdriver>T_1shif_maxWhen the power generation and auxiliary driving motor is started, the storage battery supplies power to the power generation and auxiliary driving motor, the power generation and auxiliary driving motor only serves as a starter to start the engine, the engine is switched into a working mode, and the engine outputs power; when the gear shifting actuating mechanism is connected with the first gear clutch; the main driving motor provides driving power, the storage battery supplies power to the main driving motor, and the main driving motor and the engine output power together.
Further, in the hybrid two-gear operating mode, if the SOC is lowermin<SOC<SOCmaxThe storage battery supplies power to the power generation and auxiliary driving motor, and the power generation and auxiliary driving motorThe auxiliary driving motor is used as a starter to start the engine, the engine is switched into a working mode, and the engine outputs power; the gear shifting actuating mechanism is connected with the second gear clutch; the main driving motor is used as a generator, when the engine works in a low-efficiency area, the work of the engine is adjusted to a high-efficiency area to work, and redundant power of the engine is supplied to the main driving motor to generate power.
Further, in the hybrid second-gear operating mode, if Tdriver>T_2shif_maxWhen the power generation and auxiliary driving motor is started, the storage battery supplies power to the power generation and auxiliary driving motor, the power generation and auxiliary driving motor serves as a starter to start the engine, the engine is switched into a working mode, and the engine outputs power; the gear shifting actuating mechanism is connected with the second gear clutch; the main driving motor provides driving power, the storage battery supplies power to the main driving motor, and the main driving motor and the engine output power together.
Further, in the range-extended working mode, the storage battery supplies power to the power generation and auxiliary driving motor, the power generation and auxiliary driving motor serves as a starter to start the engine, the engine is switched into the working mode, and the engine outputs power; the power generation and auxiliary driving motor is used as a generator, the power generated by the power generation and auxiliary driving motor 2 is used for supplying power to the main driving motor 4 or charging a storage battery, and the main driving motor and the engine output power together.
Further, under the energy recovery working mode, the engine and the power generation and auxiliary driving motor are in a stop state, the main driving motor is switched from the driving mode to the power generation mode, and part of braking torque generated in the vehicle braking process is converted and recovered to be charged into the storage battery in a power shortage state.
The invention has the beneficial effects that:
the dual-motor scheme of the driving motor and the auxiliary power generation motor can be further motorized; the step characteristics of the output power of the engine and the transmission are exerted through the power distribution of the motor and the engine, and the driving and riding experience is optimized; the novel gear shifting mechanism is adopted, so that the gear shifting process is simpler and cleaner, and the gear shifting time is shortened; by adopting the novel control method of the special hybrid power transmission, the output power of the transmission is not interrupted in the gear shifting process, and the driving texture and experience are further improved.
Drawings
FIG. 1 is a schematic block diagram of the hybrid vehicle powertrain of the present invention;
FIG. 2 is a schematic diagram of the hybrid vehicle powertrain of the present invention;
FIG. 3 is a logic flow diagram of a control strategy for the powertrain of the hybrid vehicle of the present invention;
in the figure, 1, an engine, 2, a power generation and auxiliary driving motor, 4, a main driving motor, 6, a power generation and auxiliary driving motor output shaft, 8, an engine and power generation and auxiliary driving motor input shaft, 9, a first gear mechanism, 10, a second gear mechanism, 11, a first gear clutch, 12, a second gear clutch, 13, a gear shifting mechanism driving motor, 14, a gear shifting cam, 15, an engine power output shaft, 16, a driving motor output shaft, 17, a main output shaft, 18 and a differential mechanism.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
A hybrid system, as shown in fig. 1 and 2, includes a hybrid power source, a vehicle control unit, and a shift actuator. The hybrid power source comprises an engine 1, a main driving motor 4 and a power generation and auxiliary driving motor 2; the engine of the engine 1, the input shaft 8 of the power generation and auxiliary driving motor and the output shaft 6 of the power generation and auxiliary driving motor 2 are in meshing transmission through a gear mechanism; the engine and the input shaft 8 of the power generation and auxiliary driving motor are respectively in meshing transmission with the gear shifting execution mechanism and the power output shaft 15 of the engine through a gear mechanism; the engine power output shaft 15 is respectively in meshing transmission with a drive motor output shaft 16 and a main output shaft 17 of the main drive motor 4 through a gear mechanism; the main output shaft 17 and the differential 18 are in meshed transmission through a gear mechanism. The power of the main driving motor 4 and the power of the engine 1 are converged to a total output shaft 17, and the power is input to a differential 18 through the total output shaft 17. In this embodiment, the power generation and auxiliary driving motor 2 and the main driving motor 4 are all starting and power generation integrated machines.
The gear shifting actuating mechanism comprises a gear shifting mechanism driving motor 13, a gear shifting cam 14, a first-gear clutch 11 and a second-gear clutch 12; the first-gear clutch 11 is in meshed transmission with the power output shaft 15 of the engine through the first-gear mechanism 9; the second gear clutch 12 is in meshing transmission with the engine power output shaft 15 through the second gear mechanism 10. The gear shift mechanism driving motor 13 drives the gear shift cam 14 to rotate, so that the gear shift cam 14 presses or releases the clutch pressing plate mechanism, and the gear is engaged or disengaged. In addition, a shift mechanism drive motor 13, a shift cam 14, a first-gear clutch 11, and a second-gear clutch 12 are arranged at the power input shaft end of the engine 1; the first gear mechanism 9 and the second gear mechanism 10 are in an idling state when not engaged.
The vehicle control unit is shown in fig. 2 and comprises a vehicle controller, a BMS controller, an MCU controller, a TCU controller and an ECU controller. The vehicle control unit collects current working information of a vehicle, and the current working information mainly comprises driver required torque, vehicle running speed, current output torque of an engine, a current engine working state, current engine rotating speed, current motor torque, current motor rotating speed, a current gear signal, a current clutch state and a current gear shifting mechanism position; the battery BMS controller is connected with the input end of the vehicle controller and is used for inputting the current battery SOC, the current battery voltage platform, the current battery current and the battery temperature signal to the vehicle controller. The output end of the vehicle control unit is respectively connected with the MCU controller, the TCU controller and the ECU controller, the vehicle control unit calculates and processes to determine a corresponding working mode, the vehicle control unit sends a motor working signal, a motor output torque and a motor working mode to the MCU controller, and the MCU controller sends a driving signal to the power generation and auxiliary driving motor 2 and the main driving motor 4 to control the motors to work. The vehicle control unit sends a required gear signal, a clutch working signal and a gear shifting mechanism motion signal to the TCU controller, and the TCU sends a driving signal to the gear shifting execution mechanism to drive the gear shifting mechanism to drive the motor 13 to work so as to drive the gear shifting mechanism to perform gear shifting work. The whole vehicle controller sends an engine working signal and engine required torque to the ECU controller, and the ECU controller sends a driving signal to the engine 1 so as to control the engine to meet the required work.
The control method of the power transmission system of the built-in hybrid vehicle in the vehicle control unit is shown in fig. 3 and comprises the following steps:
1) judging whether the vehicle is in a starting state or a stopping state according to the working signal acquired by the vehicle control unit;
2) after the vehicle is confirmed to be in a starting state by the vehicle control unit, the required torque T of the driver is useddriverJudging whether the brake state or the driving state; namely Tdriver>0 is in a driving state, Tbrake>0 is the braking state.
3) If the current SOC of the battery is the driving state, judging the working state of the battery, and if the current SOC of the battery is the driving state>Preset lowest threshold SOCmidThe pure electric operation mode is entered. In the pure electric working mode, the engine 1 and the power generation and auxiliary driving motor 2 do not work, the gear shifting mechanism driving motor 13 does not work, the gear shifting cam 14 is arranged in a neutral position at the middle position, the storage battery supplies power to the main driving motor 4, the main driving motor 4 drives the vehicle to start, and power output by the main driving motor 4 is transmitted to the main output shaft 17 through the driving motor output shaft 16 and then transmitted to the differential mechanism 18.
If the current SOC of the battery<Preset lowest threshold SOCmidAnd entering a pure fuel first-gear working mode. Under the pure fuel oil first gear working mode, the starting mode is consistent with the traditional vehicle starting mode, the storage battery supplies power to the power generation and auxiliary driving motor 2, the power generation and auxiliary driving motor 2 serves as a starter to start the engine 1, the engine 1 is switched into the working mode, the gear shifting mechanism driving motor 13 drives the gear shifting cam 14 to move anticlockwise, the first gear shifting cam pushes the pressing rod of the first gear clutch 11 to be jointed with the first gear clutch 11, the power of the engine 1 is transmitted to the engine power output shaft 15 through the engine, the power generation and auxiliary motor input shaft 8 and the first gear mechanism 9, then is transmitted to the main output shaft 17, and finally, the power is output through the differential 18.
4) After the starting process of the whole vehicle is finished, according to the driverRequired torque T ofdriverAnd the vehicle running speed V (the higher weight of the vehicle running speed is judged preferentially) is judged, and when the vehicle speed V is higher>Set pure electric driving speed VemaxWhen the value is far less than the highest speed of pure electric running, whether the speed V is greater than the first-gear second-up speed V or not is further judged1-2；
5) When V is<V1-2Then, whether the SOC is between the set maximum threshold SOC is judgedmaxAnd minimum threshold SOCminInter-or driver-demanded torque TdriverWhether the torque is less than the set first-gear maximum efficient torque T_1shif_max；
5.1) when battery SOC>SOCmaxOr the driver requests a torque Tdriver<T_1shif_maxAnd entering a pure fuel oil first gear working mode. At the moment, under a pure fuel oil first-gear working mode, the storage battery supplies power for the power generation and auxiliary driving motor 2, the power generation and auxiliary driving motor 2 serves as a starter to start the engine 1, and the engine 1 is switched into a working mode; the gear shifting mechanism driving motor 13 drives the gear shifting cam 14 to move anticlockwise, the first gear shifting cam pushes a pressing rod of the first gear clutch 11 to be jointed with the first gear clutch 11, the power of the engine 1 is transmitted to the engine power output shaft 15 through the engine, the power generation and auxiliary motor input shaft 8 and the first gear mechanism 9, then is transmitted to the main output shaft 17, and finally is output through the differential 18.
5.2) when the SOC of the battery is between the SOCmaxAnd SOCminOr Tdriver>T_1shif_maxThe hybrid first gear working mode is entered. In the hybrid first-gear operating mode, the shift mechanism driving motor 13 drives the shift cam 14 to move counterclockwise, and the first-gear shift cam pushes the pressing lever of the first-gear clutch 11 to engage the first-gear clutch 11.
5.2.1) if the SOC of the battery is between the SOCmaxAnd SOCminIn the meantime, the storage battery supplies power to the power generation and auxiliary driving motor 2, the power generation and auxiliary driving motor 2 serves as a starter to start the engine 1, and the engine 1 is switched to a working mode; the power of the engine 1 is transmitted to the power output shaft 15 of the engine through the input shaft 8 of the engine, the power generation and auxiliary motor and the first gear mechanism 9 and then transmitted to the engineA main output shaft 17, and finally, power is output through a differential 18; the main driving motor 4 is used as a generator, when the engine 1 works in the low-efficiency area, the work of the engine 1 is adjusted to the work in the high-efficiency area, and the redundant power of the engine 1 is provided for the driving motor to generate power.
5.2.2) if Tdriver>T_1shif_maxWhen the power generation and auxiliary driving motor 2 is started, the storage battery supplies power to the power generation and auxiliary driving motor 2, the power generation and auxiliary driving motor 2 only serves as a starter to start the engine 1, and the engine is switched to a working mode; the power of the engine 1 is transmitted to an engine power output shaft 15 through an engine, a power generation and auxiliary driving motor input shaft 8 and a first gear mechanism 9, then transmitted to a main output shaft 17, and finally output through a differential 18; the main driving motor 4 provides driving power, the storage battery supplies power to the main driving motor 4, and the power output by the main driving motor 4 is transmitted to a main output shaft 17 through a driving motor output shaft 16 and then transmitted to a differential 18;
6) when V is>V1-2Then, judging whether the SOC is between the set maximum threshold SOCmaxAnd minimum threshold SOCminInter-or driver-demanded torque TdriverWhether the torque is less than the set maximum efficient torque T of the second gear_2shif_max。
6.1) when battery SOC>SOCmaxOr the driver requests a torque Tdriver<T_2shif_maxAnd entering a pure fuel oil second-gear working mode. In a pure fuel oil second-gear working mode, the gear shifting mechanism driving motor 13 drives the gear shifting cam 14 to move clockwise, and the second-gear shifting cam pushes the pressing rod of the second-gear clutch 12 to be jointed with the second-gear clutch 12; the storage battery supplies power to the power generation and auxiliary driving motor 2, the power generation and auxiliary driving motor 2 serves as a starter to start the engine 1, and the engine 1 is switched to a working mode; the power of the engine 1 is transmitted to the engine power output shaft 15 through the engine, the power generation and auxiliary motor input shaft 8 and the second gear mechanism 10, then transmitted to the main output shaft 17, and finally output through the differential 18.
6.2) when the SOC of the battery is between the SOCmaxAnd SOCminOr Tdriver>T_2shif_maxAnd then entering a hybrid second-gear working mode.
6.2.1), in the second-gear hybrid power operating mode, if the SOC of the battery is between the SOCmaxAnd SOCminIn the meantime, the storage battery supplies power to the power generation and auxiliary driving motor 2, the power generation and auxiliary driving motor 2 serves as a starter to start the engine 1, and the engine is switched to a working mode; the gear shifting mechanism driving motor 13 drives the gear shifting cam 14 assembly to move clockwise, the second gear shifting cam pushes a pressing rod of the second gear clutch 12 to be jointed with the second gear clutch 12, the power of the engine 1 is transmitted to an engine power output shaft 15 through the engine, the power generation and auxiliary motor input shaft 8 and the second gear mechanism 10, then is transmitted to a main output shaft 17, and finally is output through the differential 18; the main driving motor 4 is used as a generator, when the engine 1 works in a low-efficiency area, the work of the engine 1 is adjusted to work in a high-efficiency area, and redundant power of the engine 1 is supplied to the main driving motor 4 for power generation;
6.2.2) if Tdriver>T_2shif_maxWhen the power generation and auxiliary driving motor 2 is started, the storage battery supplies power to the power generation and auxiliary driving motor 2, the power generation and auxiliary driving motor 2 serves as a starter to start the engine 1, and the engine is switched to a working mode; the gear shifting mechanism driving motor 13 drives the gear shifting cam 14 assembly to move clockwise, the second gear shifting cam pushes a pressing rod of the second gear clutch 12 to be jointed with the second gear clutch 12, the power of the engine 1 is transmitted to an engine power output shaft 15 through the engine, the power generation and auxiliary motor input shaft 8 and the second gear mechanism 10, then is transmitted to a main output shaft 17, and finally is output through the differential 18; the main driving motor 4 provides driving power, the storage battery supplies power to the main driving motor 4, and the power output by the main driving motor 4 is transmitted to a main output shaft 17 through a driving motor output shaft 16 and then transmitted to a differential 18.
7) According to the judgment of the step 4), when the vehicle speed V is<Set pure electric driving speed Vemax(VemaxValue far less than the maximum vehicle speed of pure electric driving), whether the SOC of the battery is less than the SOC is further judgedmid，SOCmidIs SOCminAnd SOCmaxMiddle value of if SOC<SOCmidThe extended range mode of operation is entered. In the extended-range operating mode, the storage battery supplies power to the power generation and auxiliary drive motor 2, and the power generation and auxiliary drive motor 2 is used as a startingThe engine is started, the engine is switched to a working mode, the power generation and auxiliary driving motor 2 serves as a generator 1, the power generated by the power generation and auxiliary driving motor 2 is used for supplying power to the main driving motor 4 or charging a storage battery, and the power output by the main driving motor 4 is transmitted to a main output shaft 17 through a driving motor output shaft 16 and then transmitted to a differential 18.
8) When the vehicle is in a running state, the braking torque T of the driverbrake>And 0, entering an energy recovery working mode. In the energy recovery working mode, the engine 1 and the power generation and auxiliary driving motor 2 are in a stop state, the main driving motor 4 is switched from the driving mode to the power generation mode, and part of braking torque generated in the vehicle braking process is recovered to be charged into a storage battery in a power shortage state.
The above embodiments are only used for illustrating the design idea and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the content of the present invention and implement the present invention accordingly, and the protection scope of the present invention is not limited to the above embodiments. Therefore, all equivalent changes and modifications made in accordance with the principles and concepts disclosed herein are intended to be included within the scope of the present invention.

Claims (10)

1. A hybrid power system is characterized by comprising a hybrid power source, a whole vehicle control unit and a gear shifting execution mechanism, wherein the hybrid power source comprises an engine (1), a main driving motor (4) and a power generation and auxiliary driving motor (2); the engine of the engine (1), the input shaft (8) of the power generation and auxiliary drive motor and the output shaft (6) of the power generation and auxiliary drive motor (2) are in meshing transmission through a gear mechanism; the engine and the input shaft (8) of the power generation and auxiliary driving motor are respectively in meshing transmission with the gear shifting execution mechanism and the power output shaft (15) of the engine through a gear mechanism; the engine power output shaft (15) is respectively in meshing transmission with a drive motor output shaft (16) of the main drive motor (4) and a main output shaft (17) through a gear mechanism; the main output shaft (17) and the differential (18) are in meshing transmission through a gear mechanism;
the gear shifting executing mechanism comprises a gear shifting mechanism driving motor (13), a gear shifting cam (14), a first-gear clutch (11) and a second-gear clutch (12); the first-gear clutch (11) is in meshed transmission with the power output shaft (15) of the engine through a first-gear mechanism (9); the second-gear clutch (12) is in meshed transmission with the power output shaft (15) of the engine through a second-gear mechanism (10); the gear shifting mechanism driving motor (13) drives the gear shifting cam (14) to rotate, so that the gear shifting cam (14) is pressed or the clutch pressing plate mechanism is released to realize gear shifting;
the whole vehicle control unit comprises a whole vehicle controller, a BMS controller, an MCU controller, a TCU controller and an ECU controller, wherein the whole vehicle controller collects the current working information of the vehicle, and the battery BMS controller is connected with the input end of the whole vehicle controller and receives the battery information; judging the working mode in the vehicle controller according to the input information; the output end of the vehicle control unit is respectively connected with the MCU controller, the TCU controller and the ECU controller, the vehicle control unit outputs corresponding driving signals to the MCU controller, the TCU controller and the ECU controller according to the output working mode, the MCU controller, the TCU controller and the ECU controller respectively control the motor, the gear shifting executing mechanism and the engine (1), and the motor comprises a power generation and auxiliary driving motor (2) and a main driving motor (4).
2. A control method of a hybrid system according to claim 1, characterized by comprising:
in the starting phase, the rule for selecting the working mode is as follows:
1) judging whether the vehicle is in a starting state or a stopping state;
2) if the starting state is true, the torque is determined according to the required torque TdriverJudging whether the brake state or the driving state;
3) when the battery is in a driving state, if the current SOC of the battery is>SOCmidEntering a pure electric working mode; if the current SOC of the battery<SOCmidThen enter the pure fuel oil first gear operating mode, SOCmidIs a preset SOC minimum threshold, SOCmidIs the lowest value SOC of SOCminAnd SOC maximum value SOCmaxA median value of (d);
after the starting process of the whole vehicle is finished, the rule of selecting the working mode is as follows:
4) and the vehicle speed V and the set pure electric running vehicle speed VemaxMaking comparison when the vehicle speed V is>Set pure electric driving speed VemaxWhen the vehicle speed V is higher than the first gear second-up vehicle speed V, further judging whether the vehicle speed V is higher than the first gear second-up vehicle speed V1-2；
5) When V is<V1-2When, if the battery SOC>SOCmaxOr the driver requests a torque Tdriver<T_1shif_maxEntering a pure fuel oil first-gear working mode; if SOCmin<SOC<SOCmaxOr Tdriver>T_1shif_maxEntering a hybrid first-gear operating mode, T_1shif_maxIs the first gear maximum efficient torque;
6) when V is>V1-2When, if SOC is>SOCmaxOr Tdriver<T_2shif_maxEntering a pure fuel oil second-gear working mode; if SOCmin<SOC<SOCmaxOr Tdriver>T_2shif_maxEntering a hybrid power second-gear working mode; t is_2shif_maxIs the maximum efficient torque of the second gear;
7) when the vehicle speed V is<VemaxAnd SOC<SOCmidEntering a range extending working mode;
8) when the vehicle is in a running state, the braking torque T of the driverbrake>And 0, entering an energy recovery working mode.
3. The control method of the hybrid power system is characterized in that in the pure electric operation mode, the engine (1) and the power generation and auxiliary driving motor (2) do not work, the gear shifting mechanism driving motor (13) does not work and is placed in a neutral position, the storage battery supplies power to the main driving motor (4), and the vehicle is driven by the main driving motor (4) to start.
4. A control method of a hybrid system according to claim 2, characterized in that in the pure fuel first gear operating mode, the storage battery supplies power to the power generation and auxiliary drive motor (2), the power generation and auxiliary drive motor (2) is used as a starter to start the engine (1), and the engine (1) is switched to the operating mode; at this time, the shift actuator engages the first clutch (11) and the engine (1) outputs power.
5. A control method of a hybrid system according to claim 2, characterized in that in the pure fuel second-gear operating mode, the storage battery supplies power to the power generation and auxiliary drive motor (2), the power generation and auxiliary drive motor (2) is used as a starter to start the engine (1), and the engine (1) is switched to the operating mode; at this time, the shift actuator engages the first clutch (11) and the engine (1) outputs power.
6. The control method of a hybrid powertrain system of claim 2, wherein in the hybrid first-gear operating mode, if the SOC is lowmin<SOC<SOCmaxWhen the power generation and auxiliary driving device is used, the storage battery supplies power for the power generation and auxiliary driving motor (2), the power generation and auxiliary driving motor (2) serves as a starter to start the engine (1), the engine (1) is switched into a working mode, and the engine (1) outputs power; when the gear shifting actuating mechanism is engaged with the first gear clutch (11); the main driving motor (4) is used as a generator, when the engine (1) works in a low-efficiency area, the operation of the engine (1) is adjusted to a high-efficiency area to work, and redundant power of the engine (1) is supplied to the main driving motor (4) to generate power.
7. The control method of a hybrid system according to claim 6, wherein in the hybrid first-gear operating mode, if T is Tdriver>T_1shif_maxWhen the power generation and auxiliary driving device is used, the storage battery supplies power for the power generation and auxiliary driving motor (2), the power generation and auxiliary driving motor (2) only serves as a starter to start the engine (1), the engine is switched into a working mode, and the engine (1) outputs power; when the gear shifting actuating mechanism is engaged with the first gear clutch (11); the main driving motor (4) provides driving power, the storage battery supplies power to the main driving motor (4), and the main driving motor (4) and the engine (1) output power together.
8. The control method of a hybrid system according to claim 2Method, characterized in that in the hybrid second gear operating mode, if SOCmin<SOC<SOCmaxThe storage battery supplies power to the power generation and auxiliary driving motor (2), the power generation and auxiliary driving motor (2) is used as a starter to start the engine (1), the engine is switched into a working mode, and the engine (1) outputs power; when the gear shifting actuating mechanism is used for engaging a second gear clutch (12); the main driving motor (4) is used as a generator, when the engine (1) works in a low-efficiency area, the operation of the engine (1) is adjusted to a high-efficiency area to work, and redundant power of the engine (1) is supplied to the main driving motor (4) to generate power.
9. The method as claimed in claim 8, wherein in the second hybrid operating mode, if T isdriver>T_2shif_maxWhen the power generation and auxiliary driving device is used, the storage battery supplies power for the power generation and auxiliary driving motor (2), the power generation and auxiliary driving motor (2) serves as a starter to start the engine (1), the engine is switched into a working mode, and the engine (1) outputs power; when the gear shifting actuating mechanism is used for engaging a second gear clutch (12); the main driving motor (4) provides driving power, the storage battery supplies power to the main driving motor (4), and the main driving motor (4) and the engine (1) output power together.
10. The control method of the hybrid system according to claim 2, wherein in the extended-range operating mode, the storage battery supplies power to the power generation and auxiliary drive motor (2), the power generation and auxiliary drive motor (2) serves as a starter to start the engine (1), the engine (1) is switched to the operating mode, and the engine (1) outputs power; the power generation and auxiliary driving motor (2) is used as a power generator (1), the power generated by the power generation and auxiliary driving motor (2) is used for supplying power to the main driving motor (4) or charging a storage battery, and the main driving motor (4) and the engine (1) output power together;
under the energy recovery working mode, the engine (1) and the power generation and auxiliary driving motor (2) are in a stop state, the main driving motor (4) is switched from the driving mode to the power generation mode, and part of braking torque generated in the vehicle braking process is converted into the storage battery in a power shortage state for charging.
CN202110929668.4A 2021-08-13 2021-08-13 Hybrid power system and control method Pending CN113602071A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114212072A (en) * 2021-12-10 2022-03-22 奇瑞万达贵州客车股份有限公司 Power coupling control method for hybrid power bus
CN114347775A (en) * 2022-01-27 2022-04-15 东风商用车有限公司 Hybrid motor clutch control system and installation method thereof
US11376943B1 (en) * 2021-08-13 2022-07-05 Oshkosh Defense, Llc Electrified military vehicle
WO2023226660A1 (en) * 2022-05-26 2023-11-30 江苏大学 Hybrid power driving apparatus for hybrid electric vehicle, and control method therefor

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101565042A (en) * 2009-05-12 2009-10-28 奇瑞汽车股份有限公司 Driving controlling method and device of hybrid electric vehicle
CN103991374A (en) * 2014-05-08 2014-08-20 江苏大学 Hybrid power vehicle system based on dual-rotor motor power coupler and control switching method of hybrid power vehicle system
CN106515417A (en) * 2016-10-17 2017-03-22 中国第汽车股份有限公司 Hybrid power driving system
CN107089130A (en) * 2017-04-24 2017-08-25 合肥工业大学 A kind of novel double-motor multi gear hybrid power system
CN107539116A (en) * 2017-09-13 2018-01-05 上海汽车变速器有限公司 The bi-motor Mechanical ＆ Electrical Combination System and its control method of automobile-used extended-range
US20180072319A1 (en) * 2016-09-13 2018-03-15 Honda Motor Co.,Ltd. Control device in hybrid vehicle
WO2018108053A1 (en) * 2016-12-12 2018-06-21 郑州宇通客车股份有限公司 Vehicle, series-parallel hybrid power system, and method for controlling hybrid power system
CN108237892A (en) * 2016-12-27 2018-07-03 江苏万马传动科技有限公司 Novel plug-in hybrid power transmission system
CN108382187A (en) * 2018-03-27 2018-08-10 中国第汽车股份有限公司 Double-motor hybrid power system and its control method
CN109094351A (en) * 2018-08-21 2018-12-28 舍弗勒技术股份两合公司 Hybrid power system and hybrid vehicle
CN111469652A (en) * 2020-05-28 2020-07-31 格特拉克（江西）传动系统有限公司 Hybrid power driving system, control method and automobile
CN112829739A (en) * 2019-11-22 2021-05-25 广州汽车集团股份有限公司 Method for controlling operating mode of hybrid drive device and hybrid system
CN113043828A (en) * 2021-03-18 2021-06-29 江苏大学 Transmission of vehicle hybrid power system and control method

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101565042A (en) * 2009-05-12 2009-10-28 奇瑞汽车股份有限公司 Driving controlling method and device of hybrid electric vehicle
CN103991374A (en) * 2014-05-08 2014-08-20 江苏大学 Hybrid power vehicle system based on dual-rotor motor power coupler and control switching method of hybrid power vehicle system
US20180072319A1 (en) * 2016-09-13 2018-03-15 Honda Motor Co.,Ltd. Control device in hybrid vehicle
CN106515417A (en) * 2016-10-17 2017-03-22 中国第汽车股份有限公司 Hybrid power driving system
WO2018108053A1 (en) * 2016-12-12 2018-06-21 郑州宇通客车股份有限公司 Vehicle, series-parallel hybrid power system, and method for controlling hybrid power system
CN108237892A (en) * 2016-12-27 2018-07-03 江苏万马传动科技有限公司 Novel plug-in hybrid power transmission system
CN107089130A (en) * 2017-04-24 2017-08-25 合肥工业大学 A kind of novel double-motor multi gear hybrid power system
CN107539116A (en) * 2017-09-13 2018-01-05 上海汽车变速器有限公司 The bi-motor Mechanical ＆ Electrical Combination System and its control method of automobile-used extended-range
CN108382187A (en) * 2018-03-27 2018-08-10 中国第汽车股份有限公司 Double-motor hybrid power system and its control method
CN109094351A (en) * 2018-08-21 2018-12-28 舍弗勒技术股份两合公司 Hybrid power system and hybrid vehicle
CN112829739A (en) * 2019-11-22 2021-05-25 广州汽车集团股份有限公司 Method for controlling operating mode of hybrid drive device and hybrid system
CN111469652A (en) * 2020-05-28 2020-07-31 格特拉克（江西）传动系统有限公司 Hybrid power driving system, control method and automobile
CN113043828A (en) * 2021-03-18 2021-06-29 江苏大学 Transmission of vehicle hybrid power system and control method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11376943B1 (en) * 2021-08-13 2022-07-05 Oshkosh Defense, Llc Electrified military vehicle
CN114212072A (en) * 2021-12-10 2022-03-22 奇瑞万达贵州客车股份有限公司 Power coupling control method for hybrid power bus
CN114212072B (en) * 2021-12-10 2023-09-12 奇瑞万达贵州客车股份有限公司 Power coupling control method for hybrid electric bus
CN114347775A (en) * 2022-01-27 2022-04-15 东风商用车有限公司 Hybrid motor clutch control system and installation method thereof
CN114347775B (en) * 2022-01-27 2023-10-10 东风商用车有限公司 Hybrid motor clutch control system and installation method thereof
WO2023226660A1 (en) * 2022-05-26 2023-11-30 江苏大学 Hybrid power driving apparatus for hybrid electric vehicle, and control method therefor

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