PURPOSE: To optimize a vibration reducing operation of the device stated in the title, which causes vibration in the opposite phase to and at the same amplitude as vehicle vibration using a vibrating actuator by varying the transfer function of a digital filter according to a signal related to the transmitted state of vibration.
CONSTITUTION: The digital filter 20 of a transfer function change means 30 takes in signals of a vehicle height sensor 35, a seated condition sensor 36, and a residual fuel sensor 37 and recognizes the weight distribution of a vehicle. The means 30 then takes in signals of an inside temperature sensor 31, an inside air pressure sensor 32, an outdoor temperature sensor 33 and an outdoor air pressure sensor 34, thereby recognizing its surrounding. A transfer function is read from a memory map in accordance with this recognition. Then a reference signal and R are sent to a multiplier 22 with the read transfer function as the transfer function of the digital filter 20 and are subjected to multiplications with a convergence factor that a convergence factor computing circuit 21 outputs, so as to produce a vibration signal. Vibration of an engine mount 3 is controlled thereby.
IKEDA NAOKI
SENI HIROSHI
NAKAO NORIHIKO
MITSUFUJI CHIAKI
TSUKAHARA YUTAKA
HARADA SHINGO
