WO2012053593A1 - 発進制御方法、発進制御装置およびハイブリッド自動車、並びにプログラム - Google Patents
発進制御方法、発進制御装置およびハイブリッド自動車、並びにプログラム Download PDFInfo
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- WO2012053593A1 WO2012053593A1 PCT/JP2011/074161 JP2011074161W WO2012053593A1 WO 2012053593 A1 WO2012053593 A1 WO 2012053593A1 JP 2011074161 W JP2011074161 W JP 2011074161W WO 2012053593 A1 WO2012053593 A1 WO 2012053593A1
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- start control
- battery
- electric motor
- engine
- hybrid vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
- B60W20/13—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
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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
- B60K6/50—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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
- B60L15/2045—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for optimising the use of energy
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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
- 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
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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
- 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
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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
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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
- B60W20/20—Control strategies involving selection of hybrid configuration, e.g. selection between series or parallel configuration
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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
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18027—Drive off, accelerating from standstill
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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
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/18—Propelling the vehicle
- B60W30/192—Mitigating problems related to power-up or power-down of the driveline, e.g. start-up of a cold engine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/02—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/0814—Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
- F02N11/0818—Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode
- F02N11/0825—Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode related to prevention of engine restart failure, e.g. disabling automatic stop at low battery state
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/0814—Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
- F02N11/0818—Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode
- F02N11/0833—Vehicle conditions
- F02N11/0837—Environmental conditions thereof, e.g. traffic, weather or road conditions
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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
- 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
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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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/24—Energy storage means
- B60W2510/242—Energy storage means for electrical energy
- B60W2510/246—Temperature
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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
- B60W2552/00—Input parameters relating to infrastructure
- B60W2552/15—Road slope
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
- F02M21/0209—Hydrocarbon fuels, e.g. methane or acetylene
- F02M21/0212—Hydrocarbon fuels, e.g. methane or acetylene comprising at least 3 C-Atoms, e.g. liquefied petroleum gas [LPG], propane or butane
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N2200/00—Parameters used for control of starting apparatus
- F02N2200/06—Parameters used for control of starting apparatus said parameters being related to the power supply or driving circuits for the starter
- F02N2200/061—Battery state of charge [SOC]
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N2200/00—Parameters used for control of starting apparatus
- F02N2200/12—Parameters used for control of starting apparatus said parameters being related to the vehicle exterior
- F02N2200/124—Information about road conditions, e.g. road inclination or surface
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- 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
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- 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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- 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
- Y02T10/64—Electric machine technologies in electromobility
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- 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
- Y02T10/72—Electric energy management in electromobility
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- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S903/00—Hybrid electric vehicles, HEVS
- Y10S903/902—Prime movers comprising electrical and internal combustion motors
- Y10S903/903—Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
Definitions
- the present invention relates to a start control method, a start control device, a hybrid vehicle, and a program.
- the hybrid vehicle has an engine and an electric motor, and can be driven by the engine or the electric motor, or can be driven in cooperation with the engine and the electric motor.
- a hybrid vehicle for example, it is possible to reduce exhaust gas discharged from the engine at the time of starting by starting using an electric motor and shifting to running by the engine after reaching a certain vehicle speed. Moreover, this can improve fuel consumption (for example, refer patent document 1).
- hybrid vehicles are effective in reducing exhaust gas and fuel consumption by using an electric motor when starting.
- a hybrid vehicle in which all starting is performed by the motor as long as the battery can supply power to the motor.
- the present invention has been made under such a background, and is a start control method, a start control device, a hybrid vehicle, and a hybrid vehicle capable of starting with good fuel consumption without falling short of electric power or feeling of power.
- the purpose is to provide a program.
- the start control method of the present invention includes an engine, an electric motor, and a battery that supplies electric power to the electric motor, and can be driven by the engine or the electric motor, or a hybrid vehicle that can run in cooperation with the engine and the electric motor.
- the start method is any one of start by an electric motor alone, start by an engine alone, or start by a cooperation between the electric motor and the engine And a control step for controlling execution of the start by the selected start method.
- the predetermined condition is a condition related to a charge state of the battery, a condition related to the temperature of the battery, or a condition related to both the charge state of the battery and the temperature of the battery.
- condition of the ascending slope on the road surface of the start position of the hybrid vehicle is further considered as a condition, and the result of the determination in the first step process is a case where the start by only the electric motor is permitted.
- the value representing the climb gradient exceeds a predetermined value, the start by only the electric motor can be prohibited.
- the start control device of the present invention includes a start control unit that executes the start control method of the present invention.
- Still another aspect of the present invention is a viewpoint as a hybrid vehicle.
- the hybrid vehicle of the present invention has the start control device of the present invention.
- Still another aspect of the present invention is a viewpoint as a program.
- the program of the present invention causes the information processing apparatus to realize the function of the start control device of the present invention.
- FIG. 6 is a block diagram illustrating an example of a functional configuration realized in the hybrid ECU of FIG. 5. It is a flowchart which shows the start control process of the start control part of 2nd embodiment of this invention.
- FIG. 1 is a block diagram showing an example of the configuration of the hybrid vehicle 1.
- the hybrid vehicle 1 is an example of a vehicle.
- the hybrid vehicle 1 is driven by an engine (internal combustion engine) 10 and / or an electric motor 13 via a transmission of a semi-automatic transmission.
- an engine internal combustion engine
- an electric motor 13 via a transmission of a semi-automatic transmission.
- SOC state of charge of the battery 15
- the semi-automatic transmission is a transmission that can automatically perform a shifting operation while having the same configuration as a manual transmission.
- the hybrid vehicle 1 includes an engine 10, an engine ECU (Electronic Control Unit) 11, a clutch 12, an electric motor 13, an inverter 14, a battery 15, a transmission 16, a motor ECU 17, a hybrid ECU 18, wheels 19, a key switch 20, and a shift unit 21. It is configured.
- the transmission 16 has the above-described semi-automatic transmission and is operated by a shift unit 21 having a drive range (hereinafter referred to as a D (Drive) range).
- the engine 10 is an example of an internal combustion engine, and is controlled by an engine ECU 11 to be gasoline, light oil, CNG (Compressed Natural Gas), LPG (Liquefied). Petroleum Gas) or alternative fuel or the like is combusted inside to generate power for rotating the shaft, and the generated power is transmitted to the clutch 12.
- ECU 11 gasoline, light oil, CNG (Compressed Natural Gas), LPG (Liquefied). Petroleum Gas) or alternative fuel or the like is combusted inside to generate power for rotating the shaft, and the generated power is transmitted to the clutch 12.
- the engine ECU 11 is a computer that operates in cooperation with the motor ECU 17 according to an instruction from the hybrid ECU 18 and controls the engine 10 such as a fuel injection amount and a valve timing.
- the engine ECU 11 includes a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), a microprocessor (microcomputer), a DSP (Digital Signal Processor), and the like. O (Input / Output) port and the like.
- the clutch 12 is controlled by the hybrid ECU 18 and transmits the shaft output from the engine 10 to the wheels 19 via the electric motor 13 and the transmission 16. That is, the clutch 12 mechanically connects the rotating shaft of the engine 10 and the rotating shaft of the electric motor 13 under the control of the hybrid ECU 18 to transmit the shaft output of the engine 10 to the electric motor 13, or By disconnecting the mechanical connection between the rotating shaft of the motor 10 and the rotating shaft of the electric motor 13, the shaft of the engine 10 and the rotating shaft of the electric motor 13 can be rotated at different rotational speeds.
- the clutch 12 causes the hybrid vehicle 1 to travel by the power of the engine 10, thereby causing the electric motor 13 to generate electric power, when the engine 10 is assisted by the driving force of the electric motor 13, and to start the engine 10 by the electric motor 13.
- the rotating shaft of the engine 10 and the rotating shaft of the electric motor 13 are mechanically connected.
- the clutch 12 is in a state where the engine 10 is stopped or idling and the hybrid vehicle 1 is running by the driving force of the electric motor 13 and when the engine 10 is stopped or idling and the hybrid vehicle 1 is decelerated.
- the electric motor 13 is generating electric power (regenerating electric power)
- the mechanical connection between the rotating shaft of the engine 10 and the rotating shaft of the electric motor 13 is disconnected.
- the clutch 12 is different from the clutch that is operated by the driver operating the clutch pedal, and operates under the control of the hybrid ECU 18.
- the electric motor 13 is a so-called motor generator.
- the electric power supplied from the inverter 14 generates motive power for rotating the shaft, and supplies the shaft output to the transmission 16 or the shaft supplied from the transmission 16. Electric power is generated by the rotating power, and the electric power is supplied to the inverter 14.
- the electric motor 13 When the hybrid vehicle 1 is accelerating or traveling at a constant speed, the electric motor 13 generates power for rotating the shaft, supplies the shaft output to the transmission 16, and cooperates with the engine 10.
- the hybrid vehicle 1 is driven to work. Further, for example, when the motor 13 is driven by the engine 10, or when the hybrid vehicle 1 is decelerating or traveling downhill, the motor 13 is traveling without power. Operates as a generator. In this case, power is generated by the power that rotates the shaft supplied from the transmission 16, and the electric power is supplied to the inverter 14 to charge the battery 15.
- the inverter 14 is controlled by the motor ECU 17 and converts the DC voltage from the battery 15 into an AC voltage or converts the AC voltage from the motor 13 into a DC voltage.
- the inverter 14 converts the DC voltage of the battery 15 into an AC voltage and supplies electric power to the electric motor 13.
- the inverter 14 converts the AC voltage from the electric motor 13 into a DC voltage. That is, in this case, the inverter 14 serves as a rectifier and a voltage regulator for supplying a DC voltage to the battery 15.
- the battery 15 is a chargeable / dischargeable secondary battery.
- the electric power is supplied to the electric motor 13 via the inverter 14 or when the electric motor 13 is generating electric power, It is charged by the power it generates.
- the transmission 16 has a semi-automatic transmission (not shown) that selects one of a plurality of gear ratios (speed ratios) in accordance with a speed change instruction signal from the hybrid ECU 18.
- the power and / or power of the electric motor 13 is transmitted to the wheel 19. Further, the transmission 16 transmits the power from the wheels 19 to the electric motor 13 when decelerating or traveling downhill.
- the driver can manually change the gear position to an arbitrary gear stage by operating the shift unit 21.
- the motor ECU 17 is a computer that operates in cooperation with the engine ECU 11 by following instructions from the hybrid ECU 18, and controls the electric motor 13 by controlling the inverter 14.
- the motor ECU 17 is configured by a CPU, an ASIC, a microprocessor (microcomputer), a DSP, and the like, and includes a calculation unit, a memory, an I / O port, and the like.
- the hybrid ECU 18 is an example of a computer, and acquires accelerator opening information, brake operation information, vehicle speed information, gear position information acquired from the transmission 16, and engine rotation speed information acquired from the engine ECU 11 for hybrid traveling.
- the clutch 12 is controlled, and the transmission 16 is controlled by supplying a shift instruction signal.
- the hybrid ECU 18 gives a control instruction for the electric motor 13 and the inverter 14 to the motor ECU 17 and gives a control instruction for the engine 10 to the engine ECU 11 for hybrid traveling.
- the hybrid ECU 18 acquires the SOC information and the temperature information from the battery 15 and controls the engine ECU 11, the clutch 12, and the motor ECU 17 for the hybrid running, thereby performing the start control.
- the hybrid ECU 18 includes a CPU, an ASIC, a microprocessor (microcomputer), a DSP, and the like, and has an arithmetic unit, a memory, an I / O port, and the like.
- the program executed by the hybrid ECU 18 can be installed in advance in the hybrid ECU 18 that is a computer by storing the program in a nonvolatile memory inside the hybrid ECU 18 in advance.
- the engine ECU 11, the motor ECU 17, and the hybrid ECU 18 are connected to each other by a bus that conforms to a standard such as CAN (Control Area Network).
- CAN Controller Area Network
- Wheel 19 is a driving wheel that transmits driving force to the road surface. Although only one wheel 19 is shown in FIG. 1, the hybrid vehicle 1 actually has a plurality of wheels 19.
- the key switch 20 is a switch that is turned ON / OFF by a user when the operation is started, for example, and each part of the hybrid vehicle 1 is activated by being turned ON, and the key switch 20 is turned OFF. As a result, each part of the hybrid vehicle 1 stops.
- FIG. 2 is a block diagram illustrating an example of a functional configuration realized in the hybrid ECU 18 that executes the program. That is, when the hybrid ECU 18 executes the program, the start control unit 30 and the observation data storage unit 31 are realized.
- the start control unit 30 issues a start control instruction to the engine ECU 11, the clutch 12, and the motor ECU 14 based on the SOC information and temperature information of the battery 15.
- the observation data storage unit 31 is realized by allocating a part of the memory area of the hybrid ECU 18, and stores the SOC information and temperature information of the battery 15 for a certain period.
- the key switch 20 is in the ON state, and when the hybrid ECU 18 executes the program and the start control unit 30 is realized in the hybrid ECU 18, the accelerator is not turned on (that is, the accelerator is stepped on).
- the hybrid vehicle 1 is in a stopped state, the following processing is started.
- step S1 the start control unit 30 determines whether the SOC and temperature of the battery 15 are good. If it is determined in step S1 that the SOC and temperature of the battery 15 are not good, the procedure proceeds to step S2. On the other hand, if it is determined in step S1 that the SOC and temperature of the battery 15 are good, the procedure proceeds to step S7.
- the state of the SOC and temperature of the battery 15 is good when the SOC is higher than the SOC (hereinafter referred to as the SOC threshold) that can supply the electric motor 13 with electric power that can generate the torque required for starting.
- a state lower than a predetermined temperature hereinafter referred to as a temperature threshold.
- the SOC of the battery 15 is higher than the SOC threshold, but the temperature is higher than the temperature threshold, the SOC of the battery 15 is lower than the SOC threshold, the temperature is higher than the temperature threshold, the SOC of the battery 15 is lower than the SOC threshold, and the temperature is lower than the temperature threshold.
- the states such as, etc. are all not good.
- the temperature of the battery 15 is also determined here even if the SOC is sufficient, when the temperature of the battery 15 is high, power cannot be taken in and out due to the performance of the battery 15, and the SOC This is because the electric power commensurate with the above cannot be supplied to the electric motor 13.
- step S2 the start control unit 30 determines whether or not an accelerator operation is performed, and if it is determined that there is an accelerator operation (accelerator ON: an operation such as stepping on the accelerator is performed), the procedure proceeds to step S3. On the other hand, if it is determined in step S2 that there is no accelerator operation, the procedure returns to step S1.
- step S3 the start control unit 30 starts a process of connecting the clutch 12.
- step S4 the start control unit 30 determines the SOC and temperature state of the battery 15. If it is determined in step S4 that the SOC and temperature of the battery 15 are not good, the procedure proceeds to step S5. On the other hand, if it is determined in step S4 that the SOC and temperature of the battery 15 are good, the procedure proceeds to step S6.
- the criterion for determining the SOC and temperature state of the battery 15 in step S4 is a criterion for determining whether or not the assist travel is possible, and is looser than the criterion for determining whether or not the motor 13 can travel only in step S1 ( (Low) criteria.
- the criterion in step S4 is set lower than the criterion in step S1.
- the criterion in step S4 is set higher than the criterion in step S1.
- step S5 the start control unit 30 starts starting by the engine 10.
- the rotational speed of the engine 10 is increased to a rotational speed at which torque required for starting can be output, and the power from the engine 10 is transmitted to the wheels 19 via the clutch 12 and the like.
- the electric motor 13 may be controlled to perform regeneration in order to increase the SOC of the battery 15, or may be free so as not to give a friction loss to the engine 10.
- step S6 the start control unit 30 starts assist start in which the engine 10 and the electric motor 13 start in cooperation.
- the rotational speed of the electric motor 13 is increased to the rotational speed of the engine 10 (the rotational speed in the idling state), and the power of the engine 10 and the electric motor 13 is transmitted to the wheels 19.
- step S7 the start control unit 30 determines whether or not an accelerator operation is performed. If it is determined that there is an accelerator operation (accelerator ON), the procedure proceeds to step S8. On the other hand, if it is determined in step S7 that there is no accelerator operation, the procedure returns to step S1.
- step S8 the start control unit 30 disengages the clutch 12, and the procedure proceeds to step S9.
- step S ⁇ b> 9 the start control unit 30 starts starting by the electric motor 13.
- step S5 When the process of step S5, step S6, or step S9 is executed, the process for one start cycle is completed, and for example, the above-described process is repeatedly executed for a predetermined period.
- the start control unit 30 acquires the SOC information or the temperature information of the battery 15, the start control unit 30 stores this in the observation data storage unit 31.
- the start control unit 30 refers to the observation data storage unit 31 and changes from the lower SOC of the battery 15 toward the higher one, or vice versa. Similarly, the temperature of the battery 15 is higher from the lower one. To see if it ’s a change towards or against.
- the reference point for determination when the start control unit 30 performs the determinations of steps S1 and S4 in the flowchart of FIG. 3 is different depending on the direction of change in SOC or temperature, as shown in FIG. . In FIG. 4, attention should be paid to a change in either SOC or temperature.
- the hybrid vehicle 1 determines whether or not it is possible to start only with the electric motor 13 according to a predetermined condition of the battery 15, and when it is determined that starting with only the electric motor 13 is not possible, according to the predetermined condition of the battery 15, Since either one of the start by the engine 10 or the start by the cooperation of the electric motor 13 and the engine 10 is selected, it is possible to start with good fuel consumption without falling short of power or lack of power.
- the SOC of the battery 15 slightly decreases immediately after the electric power is supplied to the electric motor 13. Similarly, the temperature of the battery 15 once rises slightly immediately after supplying electric power to the electric motor 13. As described above, when the SOC or temperature of the battery 15 fluctuates in a short period of time, for example, immediately after switching from engine start to assist start, it may be repeated that the engine starts again from the assist start (see FIG. This is called mode hunting.) As a result, control for switching the state of the clutch 12 from disengagement to disengagement is repeated in a short time, and at the same time, control for synchronizing the rotation speed of the engine 10 and the rotation speed of the electric motor 13 is repeated in a short time. Occurs. In order to avoid such a situation, for example, immediately after switching from engine start to assist start, control is performed so that assist start is continued even if the SOC or temperature state of the battery 15 slightly changes to the engine start side. It is good to do.
- the SOC or temperature transition of the battery 15 is observed, and the reference point for determination when the observation result is in the process of transitioning from the situation where the start by the motor 13 is permitted to the situation where the start is not permitted, and the observation result is the start by the motor 13
- the reference point for determination in the process of transitioning from a situation where permission is not permitted to a situation where permission is permitted is set to be different from each other.
- the start control unit 30 can perform accurate control without causing mode hunting in the control of the start control unit 30 even under a situation where the SOC or temperature of the battery 15 fluctuates in a short period of time.
- hybrid vehicle 1A according to a second embodiment of the present invention will be described with reference to FIGS.
- the hybrid vehicle 1 ⁇ / b> A has a configuration in which a gradient sensor 22 is added to the configuration of the hybrid vehicle 1 illustrated in FIG. 1.
- FIG. 6 is a block diagram illustrating an example of a functional configuration realized in the hybrid ECU 18A that executes the program. That is, when the hybrid ECU 18A executes the program, the start control unit 30A and the observation data storage unit 31 are realized.
- the start control unit 30A acquires gradient information from the gradient sensor 22 in addition to the SOC information and temperature information of the battery 15 acquired by the start control unit 30 of the first embodiment.
- the flow in FIG. 7 is processing for one cycle, and the processing is repeatedly executed as long as the key switch 20 is in the ON state.
- “START” the hybrid vehicle 1A is in a stopped state.
- steps S1 to S9 are the same as those in the flowchart in FIG. 3, and thus description thereof is omitted.
- the procedure in step S20 will be mainly described.
- step S1 the start control unit 30A determines the SOC and temperature state of the battery 15. If it is determined in step S1 that the SOC and temperature of the battery 15 are not good, the procedure proceeds to step S2. On the other hand, if it is determined in step S1 that the SOC and temperature of battery 15 are good, the procedure proceeds to step S20.
- step S20 the start control unit 30A determines, based on the gradient information acquired from the gradient sensor 22, whether or not the road surface on which the hybrid vehicle 1A is currently stopped is an ascending gradient less than a predetermined value.
- the predetermined value is a value representing the gradient rate of the climbing gradient, and is represented by, for example, “X%”. Note that the value of X is appropriately set depending on the climbing ability of the electric motor 13 of the hybrid vehicle 1A. If it is determined in step S20 that the road surface on which the hybrid vehicle 1A is currently stopped is an uphill gradient below a predetermined value based on the gradient information acquired from the gradient sensor 22, the procedure proceeds to step S7. On the other hand, if it is determined in step S20 that the road surface on which the hybrid vehicle 1A is currently stopped is an ascending gradient of a predetermined value or more based on the gradient information acquired from the gradient sensor 22, the procedure proceeds to step S2.
- the hybrid vehicle 1A determines whether or not to start the motor derived from the SOC of the battery 15 or the temperature condition, the hybrid vehicle 1A determines whether or not the motor can start based on the gradient of the road surface on which the hybrid vehicle 1A is stopped. Therefore, it is possible to start with good fuel efficiency without falling short of power and feeling of power. That is, when the hybrid vehicle 1A is stopped on an uphill, torque at the time of start is required. Therefore, when starting when the hybrid vehicle 1A is stopped on an uphill, even if the SOC or temperature condition of the battery 15 permits starting only by the electric motor 13, by selecting assist starting or engine starting, It is possible to start with good fuel efficiency without falling short of power.
- the boundary of the determination region may be variously changed such that “above” is “exceeded” and “less than” is “below”.
- determination based on only the SOC of the battery 15 or only the temperature of the battery 15 may be used.
- the engine 10 has been described as an internal combustion engine, it may be a heat engine including an external combustion engine.
- the program executed by the hybrid ECUs 18 and 18A has been described as being installed in advance in the hybrid ECUs 18 and 18A.
- a removable medium in which the programs are recorded (programs are stored) is connected to a drive (not shown).
- a communication unit (not shown) stores a program loaded and read from a removable medium in a nonvolatile memory inside the hybrid ECU 18, 18A, or transmitted via a wired or wireless transmission medium. And is stored in a non-volatile memory inside the hybrid ECU 18, 18A, so that the computer can be installed in the hybrid ECU 18, 18A.
- each ECU may be realized by an ECU in which some or all of these functions are combined into one, or an ECU that further subdivides the functions of each ECU may be newly provided.
- the program executed by the computer may be a program that is processed in time series in the order described in this specification, or in parallel or at a necessary timing such as when a call is made. It may be a program for processing.
- step S1 and step S4 in the flowchart of FIG. 3 or FIG. 7 the determination is made based on the SOC and temperature of the battery 15, but in addition, the temperature of the inverter 14 or the cooling of the inverter 14 You may determine based on any one or more, such as water temperature.
- step S7 it is not assumed that the hybrid vehicle 1 is on a downhill road when starting. If the hybrid vehicle 1 is on a downward slope and the cause of the determination in step S1 being No is mainly the SOC of the battery 15, the process may proceed to step S7. This is because, even if the SOC of the battery 15 is lower than the specified value, regenerative power generation is possible immediately after the hybrid vehicle 1 starts, so that the clutch 12 is disengaged (step S8) and only the motor 13 is started (step S9). Because you can go. However, at this time, when the cause of the determination result in step S1 being No is mainly the temperature of the battery 15, regenerative power generation cannot be performed, and thus the process must proceed to step S2.
- a threshold value is set for the downhill angle, and the step S1 is limited to the case where the downhill angle is equal to or greater than the threshold value. If the determination result is No and the cause is mainly not the temperature of the battery 15 but the SOC, the process may be controlled to proceed to step S7.
- SYMBOLS 1 Hybrid vehicle, 10 ... Engine, 11 ... Engine ECU, 12 ... Clutch, 13 ... Electric motor, 14 ... Inverter, 15 ... Battery, 16 ... Transmission, 17 ... Motor ECU, 18, 18A ... Hybrid ECU, 19 ... Wheel, DESCRIPTION OF SYMBOLS 20 ... Key switch, 22 ... Gradient sensor, 30, 30A ... Start control part (start control apparatus), 31 ... Observation data storage part (a part of start control apparatus)
Abstract
Description
以下、本発明の第一の実施の形態のハイブリッド自動車について、図1~図4を参照しながら説明する。
Petroleum Gas)、または代替燃料等を内部で燃焼させて、軸を回転させる動力を発生させ、発生した動力をクラッチ12に伝達する。
ハイブリッド自動車1は、バッテリ15の所定の条件に応じて電動機13のみによる発進が可能か否かを判定し、電動機13のみによる発進が不可と判定されたときには、バッテリ15の所定の条件に応じ、エンジン10のみによる発進、電動機13とエンジン10とが協働することによる発進、のいずれか一方を選択するので、電力不足や力感不足に陥ることなく燃費の良い発進を行うことができる。
本発明の第二の実施の形態のハイブリッド自動車1Aを図5~図7を参照して説明する。ハイブリッド自動車1Aは、図5に示すように、図1に示すハイブリッド自動車1の構成に、勾配センサ22が追加された構成である。
ハイブリッド自動車1Aは、バッテリ15のSOCまたは温度の条件に由来する電動機発進可否判定に加え、ハイブリッド自動車1Aが停車している路面の勾配に由来する電動機発進可否判定を行うので、路面環境に即して電力不足や力感不足に陥ることなく燃費の良い発進を行うことができる。すなわち、ハイブリッド自動車1Aが登り坂に停車しているときには、発進時のトルクが必要である。そこで、ハイブリッド自動車1Aが登り坂に停車しているときの発進時には、バッテリ15のSOCまたは温度の条件が電動機13のみによる発進を許可するときでもアシスト発進またはエンジン発進を選択することにより電力不足や力感不足に陥ることなく燃費の良い発進を行うことができる。
また、上述したフローチャートの説明では「以上」を「超える」とし、「未満」を「以下」とするなど、判定領域の境界については様々に変更してよい。
Claims (7)
- エンジンと電動機とこの電動機に電力を供給するバッテリとを有し、前記エンジンもしくは前記電動機により走行可能であり、または前記エンジンと前記電動機とが協働して走行可能なハイブリッド自動車の発進を制御する発進制御装置において、
前記バッテリの所定の条件に応じて、発進方法を、前記電動機のみによる発進、前記エンジンのみによる発進、前記電動機と前記エンジンとが協働することによる発進、のいずれか1つの方法に選択する選択ステップと、
選択された発進方法による発進の実行を制御する制御ステップと、
を有する、
ことを特徴とする発進制御方法。 - 請求項1記載の発進制御方法であって、
前記所定の条件は、前記バッテリの充電状態に関する条件、前記バッテリの温度に関する条件、または前記バッテリの充電状態と前記バッテリの温度の両方に関する条件である、
ことを特徴とする発進制御方法。 - 請求項1または2記載の発進制御方法であって、
前記バッテリの充電状態または温度の遷移を観測するステップを有し、
前記観測結果が前記電動機のみによる発進を許可する状況から許可しない状況に遷移する過程にあるときの前記判定の基準点と、前記観測結果が前記電動機のみによる発進を許可しない状況から許可する状況に遷移する過程にあるときの前記判定の基準点とが互いに異なるように設定される、
ことを特徴とする発進制御方法。 - 請求項1から3のいずれか1項記載の発進制御方法であって、
前記所定の条件の他に、前記ハイブリッド自動車の発進位置の路面における登り勾配の状態がさらに条件として加味され、
前記第1のステップの処理による前記判定の結果が前記電動機のみによる発進を許可した場合であっても前記登り勾配を表す値が所定の値を超えるときには前記電動機のみによる発進を不許可とする、
ことを特徴とする発進制御方法。 - 請求項1から4のいずれか1項記載の発進制御方法を実行する発進制御部を有することを特徴とする発進制御装置。
- 請求項5記載の発進制御装置を有することを特徴とするハイブリッド自動車。
- 情報処理装置に、請求項5記載の発進制御装置の機能を実現させることを特徴とするプログラム。
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JP2012514265A JP5362107B2 (ja) | 2010-10-21 | 2011-10-20 | 発進制御方法、発進制御装置およびハイブリッド自動車、並びにプログラム |
US13/876,180 US9045137B2 (en) | 2010-10-21 | 2011-10-20 | Start control method, start control device, hybrid vehicle, and computer program |
AU2011318923A AU2011318923B2 (en) | 2010-10-21 | 2011-10-20 | Start control method, start control device, hybrid automobile, and program |
EP11834432.4A EP2631145B1 (en) | 2010-10-21 | 2011-10-20 | Start control method, start control device, hybrid automobile, and program |
CN201180046774.2A CN103153742B (zh) | 2010-10-21 | 2011-10-20 | 起步控制方法、起步控制装置以及混合动力汽车 |
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JP2015054646A (ja) * | 2013-09-13 | 2015-03-23 | 日産自動車株式会社 | ハイブリッド車両 |
WO2015146771A1 (ja) * | 2014-03-24 | 2015-10-01 | いすゞ自動車株式会社 | ハイブリッド車両及びハイブリッド車両の制御方法 |
JP2015182571A (ja) * | 2014-03-24 | 2015-10-22 | いすゞ自動車株式会社 | ハイブリッド車両及びハイブリッド車両の制御方法 |
JP2015214217A (ja) * | 2014-05-09 | 2015-12-03 | 日産自動車株式会社 | ハイブリッド車両の制御装置 |
JP2017128297A (ja) * | 2016-01-22 | 2017-07-27 | トヨタ自動車株式会社 | ハイブリッド車両 |
CN107340769A (zh) * | 2016-04-28 | 2017-11-10 | 本田技研工业株式会社 | 车辆控制系统、车辆控制方法以及车辆控制程序 |
US11904835B2 (en) | 2020-12-23 | 2024-02-20 | Kawasaki Motors, Ltd. | Hybrid vehicle and electric vehicle |
JP7470033B2 (ja) | 2020-12-23 | 2024-04-17 | カワサキモータース株式会社 | ハイブリッド車両 |
Also Published As
Publication number | Publication date |
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CN103153742B (zh) | 2015-11-25 |
CN103153742A (zh) | 2013-06-12 |
EP2631145B1 (en) | 2017-06-07 |
AU2011318923B2 (en) | 2015-12-17 |
EP2631145A1 (en) | 2013-08-28 |
AU2011318923A1 (en) | 2013-05-02 |
US20130184919A1 (en) | 2013-07-18 |
EP2631145A4 (en) | 2014-07-16 |
JP5362107B2 (ja) | 2013-12-11 |
JPWO2012053593A1 (ja) | 2014-02-24 |
US9045137B2 (en) | 2015-06-02 |
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