The Use of Multibody System Modeling and Multivariable System Decoupling Techniques in Vehicle Ride Control

[+] Author and Article Information
A. S. Cherry

Anthony Best Dynamics Ltd, U.K

R. P. Jones

Department of Engineering, University of Warwick, Coventry, CV4 7AL, United Kingdom

T. E. C. Potter

Rover Group, U.K

J. Dyn. Sys., Meas., Control 121(3), 479-486 (Sep 01, 1999) (8 pages) doi:10.1115/1.2802499 History: Received November 30, 1995; Online December 03, 2007


This paper describes the use of realistic analytical techniques to address automotive ride control. Multibody system (MBS) modeling techniques were used to develop a full vehicle model with suspension system representation, which was subsequently validated against experimental data. The resultant multivariable ride control problem was then decoupled in the frequency domain by the application of equivalence transformation techniques. It is shown that diagonalization can be achieved for the range of primary ride frequencies, and that the decoupled system then consists of three single-input/single-output (SISO) systems, one for each of the sprung mass modes. Finally, feedback control design for each sprung mass mode loop is illustrated by the application of modal damping.

Copyright © 1999 by The American Society of Mechanical Engineers
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