CONTROLLABLE SEAT DAMPER SYSTEM AND CONTROL METHOD THEREFOR

摘要

A controllable fluid damper (22) is employed in a seat suspension system. A microprocessor (42) receives successive signals from a displacement sensor (44) and computes a rate of displacement. This displacement rate is used to determine an appropriate control signal for the damper (22) to provide the desired isolation of the seat occupant from the vibration input to the frame . A rate control method is disclosed as a preferred control technique for providing the desired isolation.