HYBRID VEHICLE CONTROL DEVICE

• Main Author: NISHIMURA YUKIMASA
• Format: Patent
• Language: English; Japanese
• Published: 25.07.2022
• Subjects: ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRICITY; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; GENERATION; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; TRANSPORTING; VEHICLES IN GENERAL

To provide a hybrid vehicle control device capable of curbing generation of overvoltage and preventing a driver from having a feeling of strangeness when a vehicle performs battery-less travel.SOLUTION: An electronic control device 80 is for a hybrid vehicle 10 comprising an engine 12, a generator MG1 connected to the engine 12 and an electric motor MG2 connected to a pair of drive wheels 32 so as to allow drive force to be transmitted thereto. When detecting generation of overvoltage due to power generation through the generator MG1 during battery-less travel with the engine 12 activated, the electronic control device increases d-axis current supplied to the electric motor MG2 prior to a reduction in engine torque Te which is output torque of the engine 12. Thus, the electronic control device can curb the generation of overvoltage and prevent a driver from having a feeling of strangeness in a manner that prevents drive force for traveling unintended by the driver from being transmitted to the pair of drive wheels 32.SELECTED DRAWING: Figure 1 【課題】バッテリレス走行において過電圧の発生を抑制しつつドライバーに与える違和感を抑制できるハイブリッド車両の制御装置を提供する。【解決手段】エンジン１２と、エンジン１２に連結された発電機ＭＧ１と、一対の駆動輪３２に動力伝達可能に連結された電動機ＭＧ２と、を備えるハイブリッド車両１０の、電子制御装置８０であって、エンジン１２を作動させたバッテリレス走行中において発電機ＭＧ１の発電により過電圧が生じると判定した場合には、電動機ＭＧ２に供給するｄ軸電流の増加をエンジン１２の出力トルクであるエンジントルクＴeの低下よりも優先して実行する。これにより、過電圧の発生が抑制されるとともに、ドライバーの意図しない走行用駆動力が一対の駆動輪３２に伝達されることが抑制されてドライバーに与える違和感が抑制される。【選択図】図１