A position controlled disc valve in vehicle semi-active suspension systems

Abstract The paper deals with an electromagnetic hydraulic disc valve with a position feedback designed for vehicle semi-active suspension systems. The features of this design are of a simple structure, few critical dimensions, low manufacturing cost, and compact valve size. Although the valve is designed for a vehicle suspension system, it can be used as a two-port proportional control valve for other industrial hydraulic control applications. The paper is concerned with the theoretical model of the valve, including its static and dynamic characteristics with the disc position control, together with the experimental results.