| 摘要 |
PROBLEM TO BE SOLVED: To improve transmission suppression effect while suppressing useless heat generation of an actuator of an active type vibration-proofing device. SOLUTION: When transmission of vibration of an engine is suppressed by driving the actuator 41 of the active type vibration-proofing support device M to expand and contract at a predetermined cycle, since synthesized target current ICMDT is calculated by synthesizing secondary target current canceling secondary vibration of the engine to primary target current canceling primary vibration of the engine and the actuator 41 is driven by target drive current ICMD provided by offsetting the minimum value of the synthesized target current ICMDT to zero, not only vibration isolation function is improved by canceling the primary vibration and the secondary vibration of the engine, but also direct current component is prevented from being included in the target drive current ICMD to keep useless heat generation of the actuator 41 minimum. COPYRIGHT: (C)2006,JPO&NCIPI |
