Half Car Suspension System Integrated With PID Controller
نویسندگان
چکیده
In this paper, modeling and simulation of nonlinear, Half-car Active Vehicle Suspension System (HAVSS) reinforced with PID controller is presented. The model has 4 degrees of freedom; comprising of heave movements of the front and rear axle, pitch and heave motions of the unsprung mass of the vehicle. The vehicle is excited by a triangular bump on an otherwise smooth road. The objective of the presented model is to isolate the vehicle body from these road disturbances in order to maximize passenger ride comfort and retain continuous road-wheel contact. PID controller is used to supress the vibrations generated from the road unevenness. Newton’s approach is used in system modeling due its simplicity over D’Alembert’s and Lagrange’s approach. The simulation, carried out in MATLAB environment, vividly shows the superior performance; in both effectiveness and robustness of the HAVSS over its passive control counterpart.
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