DESIGN AND MODELING OF ACTIVE SUSPENSION SYSTEM FOR PID & FUZZY LOGIC CONTROLLERS

The body vibration by reverse dynamic efforts of the actuator based on controlled external source of energy. The system is shaped by implementation of PID and Fuzzy Logic Controller with primary gain setting and observed the performance of the both controllers for uncertain road trajectories. The effective parameters for investigating the performance measure of the system are vehicle body vertical movement, velocity and time to the regain stability. Basic PID and fuzzy logic controller's efficiency is observed in various aspects, advantages and pitfalls of these control methodologies are studied. It has been observed the performance of PID controller is good for smooth road, but the uncertain road profile affects its performance while FLC achieved the better result by its vary- able adjustment ability.