A Robust Servo-Electronic Controller for Brake Force Distribution

[+] Author and Article Information
M. A. Salman

General Motors Research Laboratories, Warren, MI 48090

J. Dyn. Sys., Meas., Control 112(3), 442-447 (Sep 01, 1990) (6 pages) doi:10.1115/1.2896162 History: Received September 23, 1988; Revised March 27, 1989; Online March 17, 2008


In this paper a control system which achieves ideal brake force distribution between the front and the rear wheels of a vehicle during normal braking is studied. Ideal brake proportioning is achieved by dynamically controlling the rear-wheel speed to track the front-wheel speed. Electro-hydraulic brake actuators, which are installed at the rear brakes of the vehicle, are used to modulate the brake-line pressure. A simple linear model of the actuators was developed. This model is derived from experimental response data. Based on this model, a robust servomechanism controller, which achieves ideal brake proportioning by rear-wheel speed control, is designed, implemented, and tested. Test results indicate that the robust servo-mechanism controller achieves a very good wheel speed tracking performance.

Copyright © 1990 by The American Society of Mechanical Engineers
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