Control Design of a Semi Active Suspension ...

The main objective of this paper is to use various controllers based on Optimal and Robust methods on suspension system of vehicle to control it at different work conditions. There are different parameters affecting vehicle suspension system from which Changes in speed, road condition, vehicle mass, center of gravity position and tire stiffness are the most important parameters in this aspect. In this paper, Controllers such OPTIMAL, PID and SLIDING MODE are undertaken and an optimal robust controller is designed. The simulation results show very good vehicle behavior under controlled actions in situations where the uncontrolled vehicle has undesired behavior. It is also shown that with the presence of different uncertainties of road type.