| 摘要 |
PURPOSE:To prevent displacement and vibration of a power unit with an excel lent responsiveness when torque changes, by providing a means for detecting an input rpm to a transmission and controlling a mount property to a hard side for a prescribed period of time when an input rpm equal to or greater than a prescribed value is detected. CONSTITUTION:A control unit 21 is supplied with a detection signal from an rpm sensor mounted on an input shaft of a transmission. A change ratio compari son circuit in the control unit 21 compares the detected value to discriminate whether it is equal to or greater than a prescribed value. When it has a change ratio equal or greater than the prescribed value, a rotary valve 13 is closed to control a mount property of mount members 7A, 7B to hard for a prescribed period of time. With this arrangement, displacement and vibration of a power unit can be effectively prevented with an excellent responsiveness when a tran sient large torque change happens in changing a speed. |
