Control of an Automotive Semi-Active Suspension

الملخص EN

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%).