Experimental evaluation of fuzzy controller for magnetorheological damper semi-active suspension system

Developing highly nonlinear control system is a challenging task. In this paper the design and implementation of fuzzy based continuous skyhook controller in a quarter car model has been presented. Rash ride can cause fatigue to the passengers if vehicle is travelling for prolonged period of time. Higher suspension travel results in structural damage and deteriorates the ride comfort. Meanwhile limited road holding affects the entire stability of vehicle. The control methodology designed in this paper is focused to give edge in increasing ride comfort as well as good performance in road holding. Fuzzy control system is designed based on ride oriented continuous skyhook strategy. Robustness of controller is tested and verified using simulation and experimentation. The system is subjected to perform in sinusoidal disturbances. The results show that fuzzy logic gives an enhanced ride comfort, reduced suspension travel and considerable road holding.