Design of Non-fragile H-infinity Controller for Active Vehicle Suspensions
- Sage Publications Ltd
- Publication Type:
- Journal Article
- Journal of Vibration and Control, 2005, 11 (2), pp. 225 - 243
- Issue Date:
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In this paper we present an approach to design the non-fragile H-infinity controller for active vehicle suspensions. A quarter-car model with active suspension system is considered in this paper. By suitably formulating the sprung mass acceleration, suspension deflection and tire deflection as the optimization object and considering a priori norm-bounded controller gain variations, the non-fragile state-feedback H-infinity controller can be obtained by solving a linear matrix inequality. The designed controller not only can achieve the optimal performance for active suspensions but also preserves the closed-loop stability in spite of the controller gain variations.
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