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Non-fragile output feedback H8 vehicle suspension control using genetic algorithm

Journal Article


Abstract


  • This paper presents an approach to design static output feedback and non-fragile static output feedback H∞ controllers for active vehicle suspensions by using linear matrix inequalities and genetic algorithms. A quarter-car model with active suspension system is considered in this paper. By suitably formulating the minimization problem of the sprung mass acceleration, suspension deflection and tyre deflection, a static output feedback H∞ controller and a non-fragile static output feedback H∞ controller are obtained. The controller gain is naturally constrained in the design process. The approach is validated by numerical simulation which shows that the designed static output feedback H ∞ controller can achieve good active suspension performance in spite of its simplicity, and the non-fragile static output feedback H ∞ controller has significantly improved the non-fragility characteristics over controller gain variations. © 2003 Elsevier Ltd. All rights reserved.

Publication Date


  • 2003

Citation


  • Du, H., Lam, J., & Sze, K. Y. (2003). Non-fragile output feedback H8 vehicle suspension control using genetic algorithm. Engineering Applications of Artificial Intelligence, 16(7-8), 667-680. doi:10.1016/j.engappai.2003.09.008

Scopus Eid


  • 2-s2.0-0348155953

Start Page


  • 667

End Page


  • 680

Volume


  • 16

Issue


  • 7-8

Abstract


  • This paper presents an approach to design static output feedback and non-fragile static output feedback H∞ controllers for active vehicle suspensions by using linear matrix inequalities and genetic algorithms. A quarter-car model with active suspension system is considered in this paper. By suitably formulating the minimization problem of the sprung mass acceleration, suspension deflection and tyre deflection, a static output feedback H∞ controller and a non-fragile static output feedback H∞ controller are obtained. The controller gain is naturally constrained in the design process. The approach is validated by numerical simulation which shows that the designed static output feedback H ∞ controller can achieve good active suspension performance in spite of its simplicity, and the non-fragile static output feedback H ∞ controller has significantly improved the non-fragility characteristics over controller gain variations. © 2003 Elsevier Ltd. All rights reserved.

Publication Date


  • 2003

Citation


  • Du, H., Lam, J., & Sze, K. Y. (2003). Non-fragile output feedback H8 vehicle suspension control using genetic algorithm. Engineering Applications of Artificial Intelligence, 16(7-8), 667-680. doi:10.1016/j.engappai.2003.09.008

Scopus Eid


  • 2-s2.0-0348155953

Start Page


  • 667

End Page


  • 680

Volume


  • 16

Issue


  • 7-8