Title :
A two-time-scale analysis of active suspension control of a 2D/4DOF half-car model
Author :
Krtolica, R. ; Chan, H. ; Orguner, Umut ; Hrovat, D.
Author_Institution :
Canon Res. Center America Inc., Palo Alto, CA, USA
Abstract :
The LQ-optimal control of front and rear suspensions is considered for a half-car, 2D vehicle model including unsprung masses. The paper clarifies some issues related to system controllability, and extends previous analytical results to the case of half-car models with unsprung mass, wheel-hop dynamics. This is done in a form of composite controls which exploit the two-time-scale system characteristics. The analytical results are illustrated with a number of examples which show the extent of the validity and limitations of the approach
Keywords :
automobiles; controllability; discrete time systems; linear quadratic control; test facilities; vibration control; 2D/4DOF half-car model; LQ-optimal control; active suspension control; composite controls; front suspensions; rear suspensions; system controllability; two-time-scale analysis; unsprung masses; wheel-hop dynamics; Actuators; Control design; Control systems; Controllability; Optimal control; Solids; Springs; Tires; Vehicle dynamics; Wheels;
Conference_Titel :
American Control Conference, Proceedings of the 1995
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-2445-5
DOI :
10.1109/ACC.1995.520931
