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Control of an automotive semi-active suspension. (English) Zbl 1264.93083
Summary: Two controllers for an automotive suspensions with Magneto-Rheological (MR) dampers are proposed. One is a model-based using the Linear Parameter Varying (LPV) approach, and the other is a model-free controller with a Frequency Estimation Based (FEB) principle. The LPV controller includes an experimental nonlinear model of an MR damper using only one scheduling parameter. A comparison with a several semiactive controllers for comfort and road holding is discussed. The FEB controller is the best option based on frequency and time response analysis for comfort (10-20%), suspension deflection (30-50%), and road holding (1-5%).
MSC:
93C15 Control/observation systems governed by ordinary differential equations
70Q05 Control of mechanical systems
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