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Static output feedback control for electrohydraulic active suspensions via T-S fuzzy model approach

Journal Article


Abstract


  • The paper presents a fuzzy static output feedback controller design approach for vehicle

    electrohydraulic active suspensions based on Takagi–Sugeno (T–S) fuzzy modeling technique.

    The T–S fuzzy model is first applied to represent the nonlinear dynamics of an

    electrohydraulic suspension. Then, the fuzzy static output feedback controller is designed

    for the obtained T–S fuzzy model to optimize the H performance of ride comfort through

    the parallel distributed compensation scheme. The sufficient conditions for the existence

    of such a controller are derived in terms of linear matrix inequalities (LMIs) with an

    equality constraint. A computational algorithm is presented to convert the equality constraint

    into a LMI so that the controller gains can be obtained by solving a minimization

    problem with LMI constraints. To validate the effectiveness of the proposed approach,

    two kinds of static output feedback controllers, which use suspension deflection and

    sprung mass velocity, and suspension deflection only, respectively, as feedback signals,

    are designed. It is confirmed by the simulations that the designed controllers can achieve

    good suspension performance similar to that of the active suspension with optimal skyhook

    damper.

Authors


Publication Date


  • 2009

Citation


  • H. Du & N. Zhang, "Static output feedback control for electrohydraulic active suspensions via T-S fuzzy model approach," Journal of Dynamic Systems Measurement and Control-Transactions of the ASME, vol. 131, (5) pp. 1-11, 2009.

Scopus Eid


  • 2-s2.0-77955873073

Ro Metadata Url


  • http://ro.uow.edu.au/infopapers/3289

Number Of Pages


  • 10

Start Page


  • 1

End Page


  • 11

Volume


  • 131

Issue


  • 5

Abstract


  • The paper presents a fuzzy static output feedback controller design approach for vehicle

    electrohydraulic active suspensions based on Takagi–Sugeno (T–S) fuzzy modeling technique.

    The T–S fuzzy model is first applied to represent the nonlinear dynamics of an

    electrohydraulic suspension. Then, the fuzzy static output feedback controller is designed

    for the obtained T–S fuzzy model to optimize the H performance of ride comfort through

    the parallel distributed compensation scheme. The sufficient conditions for the existence

    of such a controller are derived in terms of linear matrix inequalities (LMIs) with an

    equality constraint. A computational algorithm is presented to convert the equality constraint

    into a LMI so that the controller gains can be obtained by solving a minimization

    problem with LMI constraints. To validate the effectiveness of the proposed approach,

    two kinds of static output feedback controllers, which use suspension deflection and

    sprung mass velocity, and suspension deflection only, respectively, as feedback signals,

    are designed. It is confirmed by the simulations that the designed controllers can achieve

    good suspension performance similar to that of the active suspension with optimal skyhook

    damper.

Authors


Publication Date


  • 2009

Citation


  • H. Du & N. Zhang, "Static output feedback control for electrohydraulic active suspensions via T-S fuzzy model approach," Journal of Dynamic Systems Measurement and Control-Transactions of the ASME, vol. 131, (5) pp. 1-11, 2009.

Scopus Eid


  • 2-s2.0-77955873073

Ro Metadata Url


  • http://ro.uow.edu.au/infopapers/3289

Number Of Pages


  • 10

Start Page


  • 1

End Page


  • 11

Volume


  • 131

Issue


  • 5