| 摘要 |
PROBLEM TO BE SOLVED: To provide an actuator drive control device for an active type vibrationproof supporting device allowing it to exert an effective vibrationproofing function by compensating the variation in the engine vibration during the period in which the crank shaft makes one turn. SOLUTION: The period in which the crank shaft of an engine of four-cycle, six-cylinder type makes one turn is divided into three vibrational periods P1, P2, P3, and the vibratory waveforms of the engine presumed from the time intervals of crank pulses in the vibrational periods P1, P2, P3 are averaged for the three periods so as to calculate the moving mean amplitude. On the basis of the moving mean amplitude obtained, the current waveform of the actuator of this supporting device in the next vibrational period is decided, and thereby the supporting device can exert an effective vibration proofing function while the influence of the vibrating condition of the engine in each vibrational period P1, P2, P3 and also the influence of a time delay with respect to the actuation control of the actuator executed on the basis of the vibrating condition are eliminated. COPYRIGHT: (C)2005,JPO&NCIPI |
