OPTIMIZATION IN SLIDING MODE CONTROL MECHANISM FOR REDUCING VIBRATIONS IN THE QUARTER VEHICLE USING FUZZY LOGIC CONTROLLER

Abstract

The suspension maintains a managed damping traction force between the tyres and the pavement to support and isolate the vehicle body and cargo from road vibrations generated by surface roughness. In today's high-end vehicles, the semi-active suspension is accurate and dependable, increasing ride comfort while decreasing fuel consumption. To improve the ride quality of a semi-active car suspension, we have created a hybrid system that blends fuzzy logic control with the skyhook hypothesis. The 2-degrees-of-freedom (DOF) dynamic model of a car with semi-active suspension is simulated in Matlab/Simulink, and the ride comfort performance is analyzed.