PURPOSE: To improve controllability of a vehicle as well as to efficiently decrease vibration in a vibration decreasing device of a vehicle for decreasing vibration to be generated on the vehicle by fluctuating load to be input in the vehicle body from wheels through suspension devices by driving exciting devices provided between the suspension devices and the vehicle body.
CONSTITUTION: A plurality of suspension mounts (exciting units) 6 are provided so as to face a plurality of suspension devices, and a controller (a drive control means) 12 for controlling drive of respective suspension mounts 6 is provided, and the controller 12 is so constituted that the control ratio of respective suspension mounts 6 may be changed according to the state of the specific factor of the vehicle.
MIYAHIRO EIICHI
SOMAI HIROSHI
NAKAO NORIHIKO
HARADA SHINGO