Abstract: In order to carry out validation research on active or semi-active suspension actuators and control algorithms of intelligent vehicles,a vehicle suspension experimental platform is proposed here,which can realize real-time force tracking and monitoring of dampers and Rapid Control Prototype (RCP). A vibration evaluation scheme for vehicle suspension is firstly investigated,and the dynamic control equations and transfer functions for typical quarter suspension are developed. A McPherson quarter vehicle suspension test bench with real-time force tracking detection is developed to demonstrate the dynamic output characteristics of real vehicle suspensions and to real-time monitor the control force output characteristics of the actuators. The test bench provides the opportunity to conduct research the optimal trade-off between ride comfort and ride stability for passive suspensions.In addition,the test bench can carry out investigations on optimal control algorithms for active or semi-active suspensions with rapid control prototype technology,which can even conduct studies on actuator uncertainty semi-active control strategies and actuator state observer reliability verification based on the real-time actuator output force value tracking function unique to the test bench,and the validity of the suspension test bench has been examined by means of control algorithm prototype tests.

Key words: vehicle suspension, vibration control, Rapid Control Prototype (RCP), force tracking detection, semi-active control strategy