Suppression of vehicle suspension system vibration using PID-GA

PID controller tuned by intelligent optimization method has been employed in this research using genetic Algorithm (GA) for vehicle suspension system vibration (VSSV). Modelling and control VSSV one of the main problems that still facing the researchers in automotive applications. A new modelling of VSSV by autoregressive with exogenous-genetic algorithm (ARX-GA) has been utilized, in addition to control the system by PID-GA and electromechanical actuator. To validate both of modelling and control techniques, integrate square error method (ISEM) has performed. The results showed that the proposed method (ARX-GA) was succeed to model the system where the value of ISEM was 0.00219, on the other hand, PID-GA controlled on VSSV vibration performed well, where the lowest ISEM was 0.593 and the controller suppressed the vibration up to 86.23 at Kp, Ki and Kd equal to 2.4348, 1.9667 and 0.5316 respectively.