| 摘要 |
PROBLEM TO BE SOLVED: To provide a control device of an engine mount which can suppress that an occupant feels incongruity resulting from the resonance of vibration which is transmitted to a vehicle from a road face when an engine rotation number is low, and the vibration of an engine.SOLUTION: An electronic control device switches a spring characteristic of an engine mount to a first spring characteristic and a second spring characteristic according to engine torque Trq when an engine rotational speed NE is lower than a determination value HR. Concretely, when the engine rotation number NE is lower than the determination value HR, and the engine torque Trq is equal to or higher than a determination value HT, the electronic control device valve-opens a VSV so that the spring characteristic of the engine mount is switched to the first spring characteristic. Also, when the engine rotation number NE is lower than the determination value HR, and the engine torque Trq is lower than the determination value HT, the electronic control device valve-closes the VSV so that the spring characteristic of the engine mount becomes larger than the first spring characteristic in an attenuation coefficient c, and a spring constant k is switched to the second spring characteristic.SELECTED DRAWING: Figure 3 |
