Time delay force control for vehicle active suspension system

This paper presents the simulation results of a force tracking controller for a quarter-car suspension system. The active suspension system is decomposed into two loops. At the main loop, the desired force signal is calculated by using a standard LQ design process. The Time Delay Control (TDC) technique is then used to design the force controller such that the desired force signal is achieved in a robust manner when actuator or other plant uncertainties are present. The ADAMS controls module is used to render joint simulation between ADAMS and MATLAB, of which the results showed that the TDC strategy is reasonable and feasible in isolating the road vibration effectively.