VEHICLE AND OIL PUMP DRIVE CONTROL METHOD

• Main Authors: NISHIHIRO YOSHIMASA, MOCHIZUKI SEIJI, TAWARA MASAHIKO, HIRANO TAKURO
• Format: Patent
• Language: English; Japanese
• Published: 07.01.2021
• Subjects: BLASTING; BRAKES; CLUTCHES; COMBUSTION ENGINES; CONTROLLING COMBUSTION ENGINES; COUPLINGS FOR TRANSMITTING ROTATION; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

To suppress deterioration of fuel economy and power performance caused by driving an oil pump by using an engine in a vehicle configured such that the oil pump can be operated by any of the engine and an electric motor.SOLUTION: A vehicle 100 includes an engine 3, a transmission 30, an oil pump 9 supplying oil to the transmission 30 and an EM 10 connected to the oil pump 9, and is configured so that any of the engine 3 and the EM 10 can be selected as a driving source of the oil pump 9. Even in the case where a flow rate of the oil necessary for the transmission 30 is supplied to the transmission 30 if the oil pump 9 is driven by the engine 3, a controller 20 selects the EM 10 as the driving source of the oil pump 9.SELECTED DRAWING: Figure 1 【課題】オイルポンプをエンジン、電動モータいずれによっても駆動可能に構成された車両において、オイルポンプがエンジンによって駆動されることによる燃費、動力性能の低下を抑える。【解決手段】車両１００は、エンジン３と、変速機３０と、変速機３０に油を供給するオイルポンプ９と、オイルポンプ９に接続されるＥＭ１０とを備え、オイルポンプ９の駆動源としてエンジン３及びＥＭ１０のいずれかを選択可能に構成される。コントローラ２０は、エンジン３でオイルポンプ９を駆動すれば変速機３０で必要とされる油の流量を変速機３０に供給できる場合であってもＥＭ１０をオイルポンプ９の駆動源として選択する。【選択図】図１