DocumentCode :
3292752
Title :
Robust controller design for vehicle semi-active suspensions with electrorheological dampers
Author :
Du, Haiping ; Zhang, Nong
Author_Institution :
Sch. of Electr., Comput. & Telecommun. Eng., Univ. of Wollongong, Wollongong, NSW, Australia
fYear :
2009
fDate :
15-18 Dec. 2009
Firstpage :
7639
Lastpage :
7644
Abstract :
This paper presents a robust control approach for semi-active suspensions with electrorheological (ER) dampers considering system parameter uncertainties and control input constraint. By representing the suspension with parameter uncertainties in a polytopic form and applying a norm-bounded approach to handle control input constraint, the design of this controller is derived as solving a finite number of linear matrix inequalities (LMIs) with optimised H¿ performance on ride comfort. Numerical simulations on a quarter-car suspension with an ER damper are performed to validate the effectiveness of the proposed approach. The obtained results show that the designed controller can achieve good suspension performance in spite of the variations on sprung mass and ER damper time constant with limited control input.
Keywords :
H¿ optimisation; control system synthesis; electrorheology; linear matrix inequalities; robust control; shock absorbers; vehicle dynamics; H¿ performance; LMI; control input constraint; electrorheological dampers; linear matrix inequalities; norm-bounded approach; numerical simulations; parameter uncertainties; quarter-car suspension; ride comfort; robust controller design; vehicle semiactive suspensions; Control systems; Damping; Erbium; Linear matrix inequalities; Robust control; Shock absorbers; Suspensions; Uncertain systems; Vehicles; Weight control;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Decision and Control, 2009 held jointly with the 2009 28th Chinese Control Conference. CDC/CCC 2009. Proceedings of the 48th IEEE Conference on
Conference_Location :
Shanghai
ISSN :
0191-2216
Print_ISBN :
978-1-4244-3871-6
Electronic_ISBN :
0191-2216
Type :
conf
DOI :
10.1109/CDC.2009.5399504
Filename :
5399504
Link To Document :
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