Performance of vehicle wheel slip controller combined with passive suspension

A PID wheel slip controller for Antilock Brake System (ABS) is developed. The slip controller is integrated with a passive suspension system with the goal of reducing the braking distance over using just ABS. A quarter car model is used with hydraulic braking system. The performance of the integrated system is evaluated using a sinusoidal road disturbance condition. The ride comfort of the vehicle is found to be within set limits as required by standards as well as achieving shorter stopping distance. The simulation results presented demonstrates the importance of integrating auto-subsystems in optimising performance in a cost effective manner.