Title :
Optimal vibration control for active suspension systems with actuator and sensor delays
Author :
Lei, Jing ; Tang, Gong-You
Author_Institution :
Coll. of Inf. Sci. & Eng., Ocean Univ. of China, Qingdao
Abstract :
The problem of optimal vibration for time-delay systems is considered. The delayed system is transformed into a non delayed one by using functional transformations. The optimal control law consisting of state feedback and feedforward compensator is derived from a Riccati equation and a Sylvester equation. The feedforward control compensates for the effect of road vibration. A control memory term is designed to compensate the effect of the actuator delay. An observer is constructed to make the controller physically realizable. Simulations for the full-car suspension system illustrate the effectiveness of the proposed controller.
Keywords :
Riccati equations; control system synthesis; delays; optimal control; road vehicles; state feedback; suspensions (mechanical components); vehicle dynamics; vibration control; Riccati equation; active suspension systems; actuator delay; feedforward compensator; feedforward control; functional transformations; optimal vibration control; road vibration; sensor delays; state feedback; time-delay systems; Actuators; Communication system control; Control systems; Delay; Optimal control; Riccati equations; Roads; Sensor systems; Vehicles; Vibration control; active suspension systems; disturbances; optimal control; time-delay systems; vibration control;
Conference_Titel :
Systems, Man and Cybernetics, 2008. SMC 2008. IEEE International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-2383-5
Electronic_ISBN :
1062-922X
DOI :
10.1109/ICSMC.2008.4811725
