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Design and experimental validation of a linear robust controller for an active suspension of a quarter car

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3 Author(s)
C. Lauwerys ; Dept. of Mech. Eng., Leuven Univ., Heverlee, Belgium ; J. Swevers ; P. Sas

This work presents the design and experimental validation of a robust linear controller for an active suspension mounted in a quarter car test-rig. The presented method is based on linear techniques well supported by CACSD-software tools, yielding a fast control design approach, applicable to almost any active suspension system. Linear black box models are identified using frequency domain identification techniques while robust linear control design techniques account for the model uncertainties introduced by the linear model approximation of the nonlinear dynamics. Although this linear approach introduces some conservatism, it is shown that the desired performance is achieved in simulation as well as on the experimental test-rig.

Published in:

American Control Conference, 2004. Proceedings of the 2004  (Volume:2 )

Date of Conference:

June 30 2004-July 2 2004