Optimal PID Controller Design Based on Proportional Gain for Quarter Vehicle Model

In this study, an effective and new design method was used to determine the parameters of the PID controller used in order to improve the performance of a vehicle's active suspension system and to suppress vibrations in the vehicle. In this method, the PID controller is designed based on the optimal proportional gain kp setting, taking into account the settling time and maximum overshoot of the quarter vehicle system. This method is based on obtaining the other parameters of the controller by adjusting the kp to minimize the settling time and maximum overshoot error in a stable cycle. The obtained simulation results were evaluated by comparing the uncontrolled suspension system and the suspension system in which the PID controller whose parameters were adjusted with the proposed effective design method. It suppressed the system responses of the PID controller more effectively than the passive suspension system.