| 摘要 |
FIELD: transport.SUBSTANCE: automatic transmission comprises mechanical oil pump controlled by engine power, electric oil pump, friction engagement starting element whereto hydraulic pressure generated by said mechanical or electric oil pump, and hydraulic control means coupled with automatic starting and shutdown means at idling. Note here that said hydraulic control means controls electric oil pump at high pressure whereat working load of electric oil pump is set equal to load exceeding steady-state load for definite period of time when engine stops running.EFFECT: better starting characteristics.16 cl, 7 dwg |
