A Robust Servo Electronic Controller for Brake Force Distribution

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. A simple linear model of an electro-hydraulic brake actuator 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 servomechanism controller achieves a very good wheel speed tracking performance.