Abstract
Large vehicle as a construction vehicle is bounced because of running rough road. This vibration bounces the cabin and transmits the driver. The driver gets tired and his efficiency of work grows worse. This paper examines reducing cab vertical acceleration to make it same level as others against a load variation with the active suspension system using the proposed method of designing a vibration control system. The controller was designed by applying the H-infinity control theory. The numerical simulation results show that the ride quality for driver improved by the active suspension.
