| 摘要 |
PURPOSE:To enable smooth driving by releasing a directly connecting clutch when an engine throttle is totally closed and until a certain time has elapsed from the time when this condition is over. CONSTITUTION:An automatic transmission 1 is connected to an automatic-transmission hydraulic control device 32, which is controlled by a controlling computer 33. And, when the throttle of an engine is totally closed and until a certain time has elapsed from the time when this condition is over, a directly connected clutch 4 is brought and kept in a released condition. Thereby, any abrupt change in an engine torque can be absorbed by a torque convertor 3a, relieving sudden change in torque which occurs in an output shaft 3, to enable smooth driving. |
