CN101468646A - Power control system and control method for double-motor hybrid vehicle - Google Patents

Power control system and control method for double-motor hybrid vehicle Download PDF

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Publication number
CN101468646A
CN101468646A CNA2007103022977A CN200710302297A CN101468646A CN 101468646 A CN101468646 A CN 101468646A CN A2007103022977 A CNA2007103022977 A CN A2007103022977A CN 200710302297 A CN200710302297 A CN 200710302297A CN 101468646 A CN101468646 A CN 101468646A
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CN
China
Prior art keywords
power
motor
electric machine
operating mode
machine controller
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Granted
Application number
CNA2007103022977A
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Chinese (zh)
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CN101468646B (en
Inventor
蒋荣勋
王世友
沈强
姚伟
苏伟
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BYD Co Ltd
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BYD Co Ltd
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Priority to CN2007103022977A priority Critical patent/CN101468646B/en
Priority to US12/341,776 priority patent/US8091659B2/en
Priority to US12/341,734 priority patent/US7980340B2/en
Priority to US12/341,805 priority patent/US8478466B2/en
Priority to US12/341,713 priority patent/US8676414B2/en
Priority to US12/341,796 priority patent/US8028778B2/en
Priority to EP08871390.4A priority patent/EP2222494B1/en
Priority to PCT/CN2008/002072 priority patent/WO2009092198A1/en
Priority to EP08871359.9A priority patent/EP2222493B1/en
Priority to PCT/CN2008/002069 priority patent/WO2009092195A1/en
Priority to EP08871556.0A priority patent/EP2225120B1/en
Priority to EP08871292.2A priority patent/EP2222492B1/en
Priority to PCT/CN2008/002073 priority patent/WO2009092199A1/en
Priority to EP08871419.1A priority patent/EP2222526B1/en
Priority to PCT/CN2008/002071 priority patent/WO2009092197A1/en
Priority to PCT/CN2008/002070 priority patent/WO2009092196A1/en
Publication of CN101468646A publication Critical patent/CN101468646A/en
Application granted granted Critical
Publication of CN101468646B publication Critical patent/CN101468646B/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
    • 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
    • B60K6/22—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
    • B60K6/38—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 driveline clutches
    • B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
    • 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
    • B60K6/40—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 assembly or relative disposition of components
    • 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
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
    • B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/24—Energy storage means
    • B60W2510/242—Energy storage means for electrical energy
    • B60W2510/244—Charge state
    • 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)
  • Hybrid Electric Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention provides a power control system. In the power control system, a second motor controller outputs at leas one electric signal for controlling the power output of at least one of a first motor, a second motor and an engine to at least one of the first motor controller, the second motor controller and an engine controller according to a received electric signal indicating the battery capacity SOC value and an electric signal indicating required driving power. In a power control method provided by the invention, the second motor controller controls the power output of at least one of the first motor, the second motor and the engine according to the received electric signal indicating the battery capacity SOC value and the electric signal indicating required driving power. The power control system and the power control method reduce development cost and contribute to the fuel economy and emission reduction of the whole vehicle.

Description

The power control system of double-motor hybrid vehicle and control method
Technical field
The present invention relates to automobile dynamic system, particularly a kind of power control system of double-motor hybrid vehicle and control method.
Background technology
At present; because people are to the pay attention to day by day of environmental protection and the effective and reasonable utilization of the energy; oily electric mixed double-motor hybrid vehicle with efficient, energy-saving and environmental protection vehicle has become the development tendency of auto trade because of it has the anti-emission carburetor of battery-driven car and the high-energy-density advantage of internal-combustion engines vehicle.Since the nineties, Japan, the U.S., each big car company of Europe begin to develop hybrid vehicle.At home, all begin to pay attention to and set about the exploitation and the development of double-motor hybrid vehicle to automobile enterprise from government, R﹠D institution, universities and colleges.
The power system of existing double-motor hybrid vehicle by basic motive modules such as driving engine, motor, battery pack, power-transfer clutch with and separately control unit form, have three kinds of basic versions of series, parallel and series-parallel connection, but belong to the Weak hybrid power form mostly, promptly adopt driving engine to export as subject impetus, its horsepower output changes according to the driving demand power from accelerator pedal sensor, and motor only possesses power-aid function, therefore driving engine can not stable operation in the economic zone, the car load fuel oil consumption still can not reach optimization point.Patent application CN1895942A " kinetic system control for double-motor mixed-kinetic automobile " discloses a kind of power system that adopts the hybrid vehicle that entire car controller controls power system, realized the reasonable switching between driving engine individual drive, series, parallel, the multiple driving mode such as electronic, but the power combination mechanism of this power system is comparatively complicated, cost of development is high, and accelerator pedal sensor still acts on control unit of engine, the inreal pure motor driving pattern that realizes.
Summary of the invention
The objective of the invention is for the power system that solves existing double-motor hybrid vehicle exists power combination mechanism complexity, cost of development high and not have really to realize the problem of pure motor driving pattern, provide a kind of drive connection between demand and the power distribution more direct, reduced cost of development and really realized the power control system and the control method of the double-motor hybrid vehicle of pure motor driving pattern.
The power control system of double-motor hybrid vehicle provided by the invention comprises first electric machine controller, second electric machine controller, engine controller, electric motor clutch controller and battery controller, described first electric machine controller, second electric machine controller, engine controller, electric motor clutch controller and battery controller all with the total wire joint of CAN, described second electric machine controller is used to receive from the moving electric signal that drives the demand power size of the expression of accelerator pedal sensor, receive electric signal by the CAN bus, and drive the electric signal of demand power size and expression battery capacity SOC value electric signal just according to the expression that receives and export at least one and be used for electric signal that power controlling exports to first electric machine controller from the expression battery capacity SOC value height of battery controller, in second electric machine controller and the engine controller at least one.
In the power-control method of power control system provided by the invention, power control system comprises first electric machine controller, second electric machine controller, engine controller, electric motor clutch controller and battery controller, first electric machine controller, second electric machine controller, engine controller, electric motor clutch controller and battery controller all with the total wire joint of CAN, described method comprises: second electric machine controller receives the electric signal that drives the demand power size from the expression of accelerator pedal sensor, by the electric signal of CAN bus reception from the expression battery capacity SOC value height of battery controller, and the electric signal that drives the demand power size according to the expression that receives is controlled first motor with the electric signal of expression battery capacity SOC value height, the power output of at least one in second motor and the driving engine.
The power control system of double-motor hybrid vehicle provided by the invention and control method adopt and are used to control the master controller of second electric machine controller of second power of motor output as power distribution in the power system, realize the reasonable switching between the various driving modes of power vehicle, and need not to be provided with extra master controller, reduced control module, make the connection between power demand and the power distribution more direct, reduced cost of development.And accelerator pedal sensor directly acts on second electric machine controller, second electric machine controller is according to the power output of adjusting driving engine and each control module from the power demand of acceleration pedal rapidly and accurately, guaranteed that the driving engine stable operation is in the economic zone, the fuel economy and the anti-emission carburetor that help car load, and truly realizing the pure motor driving pattern of double-motor hybrid vehicle.
Description of drawings
Fig. 1 is the constructional drawing of power control system provided by the invention;
Fig. 2 is the diagram of circuit of power-control method provided by the invention.
The specific embodiment
Be described in further detail below in conjunction with the power control system and the control method of accompanying drawing double-motor hybrid vehicle provided by the invention.
The power control system of double-motor hybrid vehicle provided by the invention comprises the first electric machine controller MCU1, the second electric machine controller MCU2, engine controller ECU, electric motor clutch controller TCU and battery controller BCU, the described first electric machine controller MCU1, the second electric machine controller MCU2, engine controller ECU, electric motor clutch controller TCU and battery controller BCU all with the total wire joint of CAN, the described second electric machine controller MCU2 is used to receive the electric signal that drives the demand power size from the expression of accelerator pedal sensor 5, receive electric signal by the CAN bus, and control first motor 1 according to electric signal and expression battery capacity SOC value electric signal just that the expression that receives drives the demand power size from the expression battery capacity SOC value height of battery controller BCU, the power output of at least one in second motor 2 and the driving engine 3.
As shown in Figure 1, the power control system of double-motor hybrid vehicle comprises first motor 1, second motor 2, driving engine 3, electric motor clutch 4 and battery pack 9, driving engine 3 is connected mutually with first motor 1, the output shaft of first motor 1 and second motor 2 is connected to electric motor clutch 4, first motor 1 is connected with battery pack 9 respectively with second motor 2, and the mouth of described second motor 2 also is used to be connected to retarder 7.
Described second motor 2 for example can be A/C alternating current dynamo, switched reluctance machines or direct current permanent magnet motor for converting electrical energy into the electric machine that mechanical energy is travelled with powered vehicle with electric motor mode work arbitrarily.Described second motor 2 can have the power bigger than first motor 1, major impetus output unit for power vehicle, can drive demand power at automobile travels with pure form of power powered vehicle separately under less than the situation of its maximum output power, thereby can farthest reduce the use of driving engine 3, reduce consumption of fuel and emission abatement.
Described first motor 1 is for arbitrarily can be with generator mode work, mechanical energy is converted to electric energy, also can convert electrical energy into the electric machine of mechanical energy, for example can be A/C alternating current dynamo, switched reluctance machines or direct current permanent magnet motor with electric motor mode work.When first motor 1 is worked with generator mode, the mechanical energy of driving engine 3 outputs can be converted to electric energy and use for battery pack 9 chargings; When first motor 1 is worked with electric motor mode, can convert electrical energy into mechanical energy with start the engine 3, or start vehicle '.Described first motor 1 is the passive element of power vehicle, can travel as auxiliary second motor, 2 powered vehicle of auxiliary power source separately or with driving engine 3 when automobile drives demand power greater than the maximum output power of its second motor 2.
Described driving engine 3 for example can be engine petrol, diesel motor or other engine fuels for being the engine installation of mechanical energy with thermal power transfer arbitrarily.Driving engine 3 can not participate in work when second motor 2 travels with pure form of power powered vehicle, or drives 1 generating of first motor or participate in driving work as auxiliary power source under other form patterns.The drive controlling of hybrid vehicle will be described in further detail in the following specific embodiment.
Described electric motor clutch 4 can for example can be pinion carrier or tri-state overrun clutch for disconnecting or engage power bonded assembly clutch equipment between first motor 1 and second motor 2 arbitrarily.The mode of operation of described electric motor clutch 4 is conventionally known to one of skill in the art.
Described battery pack 9 for example can be lead acid storage battery battery pack, iron cell group, nickel chromium triangle electrical storage battery or ni-mh electrical storage battery for the electrical storage battery of electric energy can be provided for first motor 1 and second motor 2 arbitrarily.Be preferably the iron cell group.
The input end of described retarder 7 is used for being connected with the mouth of second motor 2, mouth is used for being connected with wheel, for the velocity transducer that can utilize its gear arbitrarily is reduced to required slow speed of revolution with the high rotating speed of electric motor and improves the power reception and registration device that output torque rotates with drive wheels simultaneously, for example can be helical gear reducer or epicyclic reduction gear.The mode of operation of retarder 7 is conventionally known to one of skill in the art.
First motor 1, second motor 2, driving engine 3, electric motor clutch 4 and battery pack 9 are respectively by the first electric machine controller MCU1, the second electric machine controller MCU2, engine controller ECU, electric motor clutch controller TCU and battery controller BCU and the total wire joint of CAN, be used for by CAN bus realization data exchange each other, for conventionally known to one of skill in the art.
The described second electric machine controller MCU2 is the master controller of power control system, is used to gather and handle the working status parameter from the power system of each controller, and sends the operating order requirement to each controller, and driving torque is distributed.Engine controller ECU is used for according to output torque and the engine speed of regulating driving engine from the instruction of the second electric machine controller MCU2, and the engine operation relevant information is sent to the second electric machine controller MCU2; Electric motor clutch controller TCU is used for conducting and the disconnection of basis from the instruction control electric motor clutch 4 of the second electric machine controller MCU2; Battery controller BCU is used for detecting and counting cell group SOC value and this SOC value sent to the second electric machine controller MCU2.
The described first electric machine controller MCU1, the second electric machine controller MCU2, engine controller ECU, electric motor clutch controller TCU and battery controller BCU can be PLC or micro controller system.
Described accelerator pedal sensor 5 is connected with the second electric machine controller MCU2, the operation intention that is used for the perception chaufeur is according to the corresponding sensor device of representing to drive the electric signal of demand power size and described electric signal being sent to the second electric machine controller MCU2 of the operation generation of chaufeur.
The described second electric machine controller MCU2 also is used for determining that according to the electric signal of the electric signal of expression driving demand power size and expression battery capacity SOC value height described power control system is in pure electronic operating mode, the series connection operating mode, series-parallel connection operating mode or operating mode in parallel, and according to the electric signal of determined operating mode output control corresponding power output, described pure electronic operating mode is second motor, 2 independent drive vehicle ', the operating mode that the driving engine 3 and first motor 1 stop, described series connection operating mode is second motor, 2 independent drive vehicle ', driving engine 3 drives the operating mode of first motor, 1 generating, described series-parallel connection operating mode is that second motor 2 and driving engine 3 common powered vehicle are travelled, driving engine 3 drives the operating mode of first motor, 1 generating simultaneously, and described operating mode in parallel is a driving engine 3, the operating mode that first motor 1 and second motor, 2 common powered vehicle are travelled.
Therefore, when described power control system was in pure electronic operating mode, described second electric machine controller MCU2 output was used to control the electric signal of power output of second motor 2 to the second electric machine controller MCU2; When described power control system was in series connection operating mode or series-parallel connection operating mode, described second electric machine controller MCU2 output was used to control the electric signal of power output of second motor 2 and driving engine 3 to the second electric machine controller MCU2 and engine controller ECU; When described power control system was in operating mode in parallel, described second electric machine controller MCU2 output was used to control the electric signal of power output of first motor 1, second motor 2 and driving engine 3 to the first electric machine controller MCU1, the second electric machine controller MCU2 and engine controller ECU.
The described second electric machine controller MCU2 controls described power control system and is in pure electronic operating mode or series connection operating mode when receiving expression when driving demand power and being less than or equal to 90% the electric signal of maximum output power of second motor 2; The described second electric machine controller MCU2 drives demand power greater than the maximum output power 90% of second motor 2 and be less than or equal to the maximum output power of second motor 2 and during the electric signal of the maximum output power sum of driving engine 3, control described power control system and be in the series-parallel connection operating mode when receiving expression; The described second electric machine controller MCU2 drives demand power greater than 90% during with the electric signal of the maximum output power sum of driving engine 3 of the maximum output power of second motor 2 when receiving expression, controls described power control system and is in operating mode in parallel.
Generally, cause damage for fear of motor, the maximum power that second motor 2 can be exported is 90% of its specified maximum output power.
Under pure electronic operating mode and series connection operating mode, vehicle is only driven by second motor 2 that electric energy is provided by battery pack 9 and travels, and therefore, the battery capacity SOC value of battery pack 9 becomes judges that it is in the necessary condition of pure electronic operating mode or series connection operating mode.
Therefore, the described second electric machine controller MCU2 drives 90% the electric signal that demand power is less than or equal to the maximum output power of second motor 2 when receiving expression, and receive when representing that battery capacity SOC value is higher than the electric signal of battery capacity SOC lower limit, control described power control system and be in pure electronic operating mode; The second electric machine controller MCU2 drives 90% the electric signal that demand power is less than or equal to the maximum output power of second motor 2 when receiving expression, and receive when representing that battery capacity SOC value is lower than the electric signal of battery capacity SOC lower limit, control described power control system and be in the series connection operating mode, reach battery capacity SOC higher limit up to battery capacity SOC value.
The scope of the battery capacity SOC lower limit of described battery pack 9 is 35%-40%, and the scope of battery capacity SOC higher limit is 55%-70%.Under the preferable case, the battery capacity SOC lower limit of described battery pack 9 is 40%, and battery capacity SOC higher limit is 60%.
Under series-parallel connection operating mode or operating mode in parallel, need determine the mode of operation of first motor 1 equally by the battery capacity SOC value of battery pack 9.
When power control system was in the series-parallel connection operating mode, second electric machine controller ECU2 control driving engine 3 and second motor, 2 common powered vehicle were travelled, and electric motor clutch 4 is in engagement state.If this moment, battery capacity SOC value was greater than or equal to battery capacity SOC lower limit, the enough powered vehicle of the electric weight of battery pack are travelled, and first motor 1 does not generate electricity, and only is used for the driving kinetic energy of driving engine 3 is transmitted.If this moment, battery capacity SOC value was lower than battery capacity SOC lower limit, the electric weight of battery pack is not enough to powered vehicle and exercises, battery controller BCU will send generating and ask the second electric machine controller MCU2, the second electric machine controller MCU2 then controls driving engine 3 drives first motor 1 simultaneously and works under power generation mode, is battery pack 9 chargings.
Therefore, described power control system also can comprise synchronous device 8, as shown in Figure 1.Described synchronous device 8 is connected with the output shaft of second motor 2 and driving engine 3, and by electric motor clutch controller TCU and the total wire joint of CAN, described electric motor clutch controller TCU also is used for according to from the instruction of the second electric machine controller MCU2 synchronous device 8 being controlled.
Under the series-parallel connection operating mode, electric motor clutch controller TCU comes the power connection mode of the driving engine 3 and first motor 1 is changed by control synchronous device 8, make when battery capacity SOC value is greater than or equal to battery capacity SOC lower limit, first motor 1 is that first motor 1 only transmits the driving kinetic energy of driving engine 3 with the power connection mode of driving engine 3, and when battery capacity SOC value was lower than battery capacity SOC lower limit, first motor 1 was that the motor 1 of winning can be generated electricity under the drive of driving engine 3 with the power connection mode of driving engine 3.
Described synchronous device 8 is arbitrarily can conversion driving engine 3 and the device of the power connection mode of first motor 1, for example can be synchro, dry type clutch or liquid clutch.The structure of described synchronous device 8 and mode of operation are conventionally known to one of skill in the art.
When power control system was in operating mode in parallel, second electric machine controller ECU2 control driving engine 3, first motor 1 and second motor, 2 common powered vehicle were travelled, and electric motor clutch 4 is in engagement state.If battery capacity SOC value is greater than or equal to battery capacity SOC lower limit, driving engine 3, first motor 1 and second motor, 2 common powered vehicle are travelled.If this moment, battery capacity SOC value was lower than battery capacity SOC lower limit, then battery controller BCU will send generating and ask the second electric machine controller MCU2, this moment, the second electric machine controller MCU2 temporarily shielded this request, guaranteed that first motor 1 also can provide takeoff output together with second motor 2 and driving engine 3.Operating mode in parallel mainly is in order to respond vehicular drive, flat-out acceleration or climbing etc. the situation of extra power demand to be arranged.
Be described in further detail below in conjunction with the power-control method of accompanying drawing power control system provided by the invention.
In the power-control method of power control system provided by the invention, power control system comprises the first electric machine controller MCU1, the second electric machine controller MCU2, engine controller ECU, electric motor clutch controller TCU and battery controller BCU, the described first electric machine controller MCU1, the second electric machine controller MCU2, engine controller ECU, electric motor clutch controller TCU and battery controller BCU all with the total wire joint of CAN, described method comprises: the second electric machine controller MCU2 receives the electric signal that drives the demand power size from the expression of accelerator pedal sensor 5, receive electric signal by the CAN bus, and control first motor 1 according to electric signal and expression battery capacity SOC value electric signal just that the expression that receives drives the demand power size from the expression battery capacity SOC value height of battery controller BCU, the power output of at least one in second motor 2 and the driving engine 3.
The described second electric machine controller MCU2 is the master controller of power control system, be used for according to battery capacity SOC value and drive demand power controlling power control system conversion rationally between each operating mode, and control at least one power output in first motor 1, second motor 2 and the driving engine 3.
The described second electric machine controller MCU2 also is used for determining that according to the electric signal of the electric signal of expression driving demand power size and expression battery capacity SOC value height described power control system is in pure electronic operating mode, the series connection operating mode, series-parallel connection operating mode or operating mode in parallel, and according to the correspondingly power controlling output of determined operating mode, described pure electronic operating mode is second motor, 2 independent drive vehicle ', the operating mode that the driving engine 3 and first motor 1 stop, described series connection operating mode is second motor, 2 independent drive vehicle ', driving engine 3 drives the operating mode of first motor, 1 generating, described series-parallel connection operating mode is that second motor 2 and driving engine 3 common powered vehicle are travelled, driving engine 3 drives the operating mode of first motor, 1 generating simultaneously, and described operating mode in parallel is a driving engine 3, the operating mode that first motor 1 and second motor, 2 common powered vehicle are travelled.
When described power control system was in pure electronic operating mode, the described second electric machine controller MCU2 controlled the power output of second motor 2; When described power control system was in series connection operating mode or series-parallel connection operating mode, the described second electric machine controller MCU2 controlled the power output of second motor 2 and driving engine 3; When described power control system was in operating mode in parallel, the described second electric machine controller MCU2 controlled the power output of first motor 1, second motor 2 and driving engine 3.
When power control system was in pure electronic operating mode, the second electric machine controller ECU2 control driving engine 3 and first motor 1 stopped, second motor, 2 independent drive vehicle ', and electric motor clutch 4 is in released state.Described pure electronic operating mode is applicable to that the maximum output power of second motor 2 can satisfy the vehicular drive demand, and the SOC value of battery pack 9 is higher than battery capacity SOC lower limit, can be for the situation of second motor, 2 independent drive vehicles.
When power control system was in the series connection operating mode, second electric machine controller ECU2 control driving engine 3 drove 1 generating of first motor, second motor, 2 independent drive vehicle ', and electric motor clutch 4 is in released state.The series connection operating mode is applicable to that the maximum output power of second motor 2 can satisfy the vehicular drive demand, but the SOC value of battery pack 9 is lower, can not be for the situation of second motor, 2 independent drive use.This moment second, electric machine controller MCU2 force start driving engine 3 drove first motor 1 in power generation mode work, was battery pack 9 chargings, reached battery capacity SOC higher limit up to the SOC of battery pack 9 value and just controlled driving engine 3 and quit work.At this moment, first motor 1 absorb driving engine 3 energy output and with this Conversion of energy be electrical power storage in battery pack 9, or drive uses for second motor 2.
When power control system was in the series-parallel connection operating mode, second electric machine controller ECU2 control driving engine 3 and second motor, 2 common powered vehicle were travelled, and electric motor clutch 4 is in engagement state.If this moment, battery capacity SOC value was greater than or equal to battery capacity SOC lower limit, the enough powered vehicle of the electric weight of battery pack are travelled, and first motor 1 does not generate electricity, and only the driving kinetic energy to driving engine 3 transmits.If this moment, battery capacity SOC value was lower than battery capacity SOC lower limit, the electric weight of battery pack is not enough to powered vehicle and exercises, battery controller BCU will send generating and ask the second electric machine controller MCU2, the second electric machine controller MCU2 then controls driving engine 3 drives first motor 1 simultaneously and works under power generation mode, is battery pack 9 chargings.
When power control system was in operating mode in parallel, second electric machine controller ECU2 control driving engine 3, first motor 1 and second motor, 2 common powered vehicle were travelled, and electric motor clutch 4 is in engagement state.If battery capacity SOC value is greater than or equal to battery capacity SOC lower limit, driving engine 3, first motor 1 and second motor, 2 common powered vehicle are travelled.If this moment, battery capacity SOC value was lower than battery capacity SOC lower limit, then battery controller BCU will send generating and ask the second electric machine controller MCU2, this moment, the second electric machine controller MCU2 temporarily shielded this request, guaranteed that first motor 1 also can provide takeoff output together with second motor 2 and driving engine 3.Operating mode in parallel mainly is in order to respond vehicular drive, flat-out acceleration or climbing etc. the situation of extra power demand to be arranged.
Be described in detail control the specific strategy that described power control system is in pure electronic operating mode, series connection operating mode, series-parallel connection operating mode or operating mode in parallel according to the battery capacity SOC value of the driving demand of power control system and battery pack 9 below.
The second electric machine controller MCU2 controls described power control system and is in pure electronic operating mode or series connection operating mode when receiving expression when driving demand power and being less than or equal to 90% the electric signal of maximum output power of second motor 2; The second electric machine controller MCU2 when receive expression drive demand power greater than the maximum output power of second motor 2 90% and when being less than or equal to the electric signal of maximum output power sum of the maximum output power of second motor 2 and driving engine 3, control described power control system and be in the series-parallel connection operating mode; The second electric machine controller MCU2 drives demand power greater than 90% during with the electric signal of the maximum output power sum of driving engine 3 of the maximum output power of second motor 2 when receiving expression, controls described power control system and is in operating mode in parallel.
In above-mentioned control policy, when described driving demand power be less than or equal to second motor 2 maximum output power 90% the time, also need further the battery capacity SOC value of battery pack 9 to be judged.
Therefore, the second electric machine controller MCU2 drives 90% the electric signal that demand power is less than or equal to the maximum output power of second motor 2 when receiving expression, and receive when representing that battery capacity SOC value is higher than the electric signal of battery capacity SOC lower limit, control described power control system and be in pure electronic operating mode; The second electric machine controller MCU2 drives 90% the electric signal that demand power is less than or equal to the maximum output power of second motor 2 when receiving expression, and receive when representing that battery capacity SOC value is lower than the electric signal of battery capacity SOC lower limit, control described power control system and be in the series connection operating mode, reach battery capacity SOC higher limit up to battery capacity SOC value.
Therefore, be less than or equal at described driving demand power under 90% the situation of maximum output power of second motor 2, when battery capacity SOC value is higher than battery capacity SOC lower limit, the electric weight of battery pack enough drives automobile and exercises, and when battery capacity SOC value is lower than battery capacity SOC lower limit, the electric weight of battery pack is not enough to powered vehicle and exercises, need charge to battery pack, this moment, the second electric machine controller MCU2 sent the request of force start to driving engine 3, start the engine 3 is to drive 1 generating of first motor, thereby battery pack 9 is charged, and this moment, power control system was in the series connection operating mode.Do not having under the situation of other power demands, when the battery capacity SOC of battery pack 9 value reached 60%, the second electric machine controller MCU2 sent control signals to driving engine 3, the work of shutting engine down 3.
Wherein, the scope of the battery capacity SOC higher limit of the battery capacity SOC value of described battery pack 9 is 35%-40%, and the scope of battery capacity SOC lower limit is 55%-70%.Under the preferable case, described battery capacity SOC lower limit is 40%, and battery capacity SOC higher limit is 60%.
Fig. 2 is the diagram of circuit of power-control method provided by the invention.
As shown in Figure 2, the second electric machine controller MCU2 at first judges the driving demand power of power control system and the battery capacity SOC value of battery pack 9:
When driving demand power smaller or equal to 90% of the maximum output power of second motor 2, and when battery capacity SOC value is higher than battery capacity SOC lower limit, the second electric machine controller MCU2 controls described power control system and is in pure electronic operating mode, and control second motor, 2 powered vehicle and travel, the electrical generator 3 and first motor 1 are not worked;
When driving demand power smaller or equal to 90% of the maximum output power of second motor 2, and when battery capacity SOC value is lower than battery capacity SOC lower limit, the second electric machine controller MCU2 controls described power control system and is in the series connection operating mode, and control second motor, 2 powered vehicle and travel, electrical generator 3 drives 1 generating of first motor, reach battery capacity SOC higher limit up to battery capacity SOC value, driving engine 3 just quits work.
When drive demand power greater than the maximum output power of second motor 2 90% and be less than or equal to 90% during of maximum output power of second motor 2 with the maximum output power sum of driving engine 3, the second electric machine controller MCU2 controls described power control system and is in the series-parallel connection operating mode, the second electric machine controller MCU2 control second motor 2 and driving engine 3 together powered vehicle travel, the second electric machine controller MCU2 also controlled driving engine 3 simultaneously and drove 1 generating of first motor as if battery capacity SOC value out of reach battery capacity SOC lower limit this moment;
When driving demand power greater than 90% during of the maximum output power of second motor 2 with the maximum output power sum of driving engine 3, the second electric machine controller MCU2 controls described power control system and is in operating mode in parallel, and control second motor 2, driving engine 3 and 1 three propulsions source of first motor and work simultaneously, powered vehicle is travelled together.

Claims (12)

1. the power control system of a double-motor hybrid vehicle, this power control system comprises first electric machine controller (MCU1), second electric machine controller (MCU2), engine controller (ECU), electric motor clutch controller (TCU) and battery controller (BCU), described first electric machine controller (MCU1), second electric machine controller (MCU2), engine controller (ECU), electric motor clutch controller (TCU) and battery controller (BCU) all with the total wire joint of CAN, wherein, described second electric machine controller (MCU2) is used for receiving the electric signal that drives the demand power size from the expression of accelerator pedal sensor (5), receive electric signal by the CAN bus, and drive the electric signal of demand power size and expression battery capacity SOC value electric signal just according to the expression that receives and export at least one and be used for electric signal that power controlling exports to first electric machine controller (MCU1) from the expression battery capacity SOC value height of battery controller (BCU), in second electric machine controller (MCU2) and the engine controller (ECU) at least one.
2. power control system according to claim 1, wherein, described second electric machine controller (MCU2) also is used for determining that according to the electric signal of the electric signal of expression driving demand power size and expression battery capacity SOC value height described power control system is in pure electronic operating mode, series connection operating mode, series-parallel connection operating mode or operating mode in parallel, and exports the electric signal of control corresponding power output according to determined operating mode.
3. power control system according to claim 2, wherein, when described power control system was in pure electronic operating mode, described second electric machine controller (MCU2) output was used to control the electric signal of power output of second motor (2) to second electric machine controller (MCU2);
When described power control system was in series connection operating mode or series-parallel connection operating mode, described second electric machine controller (MCU2) output was used to control electric signal that the power of second motor (2) and driving engine (3) exports to second electric machine controller (MCU2) and engine controller (ECU);
When described power control system was in operating mode in parallel, described second electric machine controller (MCU2) output was used to control electric signal that the power of first motor (1), second motor (2) and driving engine (3) exports to first electric machine controller (MCU1), second electric machine controller (MCU2) and engine controller (ECU).
4. power control system according to claim 3, wherein, described second electric machine controller (MCU2) is controlled described power control system and is in pure electronic operating mode or series connection operating mode when receiving expression when driving demand power and being less than or equal to 90% the electric signal of maximum output power of second motor (2);
Described second electric machine controller (MCU2) when receive expression drive demand power greater than the maximum output power of second motor (2) 90% and when being less than or equal to the electric signal of maximum output power sum of the maximum output power of second motor (2) and driving engine (3), control described power control system and be in the series-parallel connection operating mode;
Described second electric machine controller (MCU2) drives demand power greater than 90% during with the electric signal of the maximum output power sum of driving engine (3) of the maximum output power of second motor (2) when receiving expression, controls described power control system and is in operating mode in parallel.
5. power control system according to claim 4, wherein, described second electric machine controller (MCU2) drives 90% the electric signal that demand power is less than or equal to the maximum output power of second motor (2) when receiving expression, and receive when representing that battery capacity SOC value is higher than the electric signal of battery capacity SOC lower limit, control described power control system and be in pure electronic operating mode;
Described second electric machine controller (MCU2) drives 90% the electric signal that demand power is less than or equal to the maximum output power of second motor (2) when receiving expression, and receive when representing that battery capacity SOC value is lower than the electric signal of battery capacity SOC lower limit, control described power control system and be in the series connection operating mode, reach battery capacity SOC higher limit up to battery capacity SOC value.
6. power control system according to claim 5, wherein, the scope of described battery capacity SOC lower limit is 35%-40%, the scope of described battery capacity SOC higher limit is 55%-70%.
7. the power-control method of a power control system, this power control system comprises first electric machine controller (MCU1), second electric machine controller (MCU2), engine controller (ECU), electric motor clutch controller (TCU) and battery controller (BCU), described first electric machine controller (MCU1), second electric machine controller (MCU2), engine controller (ECU), electric motor clutch controller (TCU) and battery controller (BCU) all with the total wire joint of CAN, this method comprises:
Described second electric machine controller (MCU2) receives the electric signal that drives the demand power size from the expression of accelerator pedal sensor (5), receive electric signal by the CAN bus, and drive at least one the power that the electric signal of demand power size and expression battery capacity SOC value electric signal just control in first motor (1), second motor (2) and the driving engine (3) according to the expression that receives and export from the expression battery capacity SOC value height of battery controller (BCU).
8. power-control method according to claim 7, wherein, described second electric machine controller (MCU2) also drives the electric signal of demand power size according to the expression that receives and the electric signal of expression battery capacity SOC value height determines that described power control system is in pure electronic operating mode, series connection operating mode, series-parallel connection operating mode or operating mode in parallel, and according to the correspondingly power controlling output of determined operating mode.
9. power-control method according to claim 8, wherein, when described power control system is in pure electronic operating mode, the power output of described second electric machine controller (MCU2) control second motor (2);
When described power control system is in series connection operating mode or series-parallel connection operating mode, the power output of described second electric machine controller (MCU2) control second motor (2) and driving engine (3);
When described power control system is in operating mode in parallel, the power output of described second electric machine controller (MCU2) control first motor (1), second motor (2) and driving engine (3).
10. power-control method according to claim 9, wherein, described second electric machine controller (MCU2) is controlled described power control system and is in pure electronic operating mode or series connection operating mode when receiving expression when driving demand power and being less than or equal to 90% the electric signal of maximum output power of second motor (2);
Described second electric machine controller (MCU2) when receive expression drive demand power greater than the maximum output power of second motor (2) 90% and when being less than or equal to the electric signal of maximum output power sum of the maximum output power of second motor (2) and driving engine (3), control described power control system and be in the series-parallel connection operating mode;
Described second electric machine controller (MCU2) drives demand power greater than 90% during with the electric signal of the maximum output power sum of driving engine (3) of the maximum output power of second motor (2) when receiving expression, controls described power control system and is in operating mode in parallel.
11. power-control method according to claim 10, wherein, described second electric machine controller (MCU2) drives 90% the electric signal that demand power is less than or equal to the maximum output power of second motor (2) when receiving expression, and receive when representing that battery capacity SOC value is higher than the electric signal of battery capacity SOC lower limit, control described power control system and be in pure electronic operating mode;
Described second electric machine controller (MCU2) drives 90% the electric signal that demand power is less than or equal to the maximum output power of second motor (2) when receiving expression, and receive when representing that battery capacity SOC value is lower than the electric signal of battery capacity SOC lower limit, control described power control system and be in the series connection operating mode, reach battery capacity SOC higher limit up to battery capacity SOC value.
12. power-control method according to claim 11, wherein, the scope of described battery capacity SOC lower limit is 35%-40%, and the scope of described battery capacity SOC higher limit is 55%-70%.
CN2007103022977A 2007-12-27 2007-12-27 Power control system and control method for double-motor hybrid vehicle Expired - Fee Related CN101468646B (en)

Priority Applications (16)

Application Number Priority Date Filing Date Title
CN2007103022977A CN101468646B (en) 2007-12-27 2007-12-27 Power control system and control method for double-motor hybrid vehicle
US12/341,734 US7980340B2 (en) 2007-12-27 2008-12-22 Hybrid vehicle having power assembly arranged transversely in engine compartment
US12/341,805 US8478466B2 (en) 2007-12-27 2008-12-22 Hybrid vehicle having multi-mode controller
US12/341,713 US8676414B2 (en) 2007-12-27 2008-12-22 Hybrid vehicle having multi-mode controller
US12/341,796 US8028778B2 (en) 2007-12-27 2008-12-22 Hybrid vehicle having torsional coupling between engine assembly and motor-generator
US12/341,776 US8091659B2 (en) 2007-12-27 2008-12-22 Hybrid vehicle having engageable clutch assembly coupled between engine and traction motor
EP08871419.1A EP2222526B1 (en) 2007-12-27 2008-12-25 Hybrid vehicle having multi-mode controller
EP08871359.9A EP2222493B1 (en) 2007-12-27 2008-12-25 Hybrid vehicle having engagable clutch assembly coupled between engine and traction motor
EP08871390.4A EP2222494B1 (en) 2007-12-27 2008-12-25 Hybrid vehicle having torsional coupling between engine assembly and motor-generator
EP08871556.0A EP2225120B1 (en) 2007-12-27 2008-12-25 Hybrid vehicle having power assembly arranged transversely in engine compartment
EP08871292.2A EP2222492B1 (en) 2007-12-27 2008-12-25 Hybrid vehicle having power system with multi-mode power capability
PCT/CN2008/002073 WO2009092199A1 (en) 2007-12-27 2008-12-25 Hybrid vehicle having multi-mode controller
PCT/CN2008/002072 WO2009092198A1 (en) 2007-12-27 2008-12-25 Hybrid vehicle having torsional coupling between engine assembly and motor-generator
PCT/CN2008/002071 WO2009092197A1 (en) 2007-12-27 2008-12-25 Hybrid vehicle having power assembly arranged transversely in engine compartment
PCT/CN2008/002070 WO2009092196A1 (en) 2007-12-27 2008-12-25 Hybrid vehicle having power system with multi-mode power capability
PCT/CN2008/002069 WO2009092195A1 (en) 2007-12-27 2008-12-25 Hybrid vehicle having engagable clutch assembly coupled between engine and traction motor

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CN2007103022977A CN101468646B (en) 2007-12-27 2007-12-27 Power control system and control method for double-motor hybrid vehicle

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