Modeling, Simulation, and Control of Half Car Suspension System Using Matlab/Simulink

The modeling, simulation, and control of linear half car suspension system with different control algorithms are studied using Matlab/Simulink programming package. Different controllers devel-oped and implemented in this study such as PID, Fuzzy and Fuzzy-PID. Each controller was widely simulated for linear half car models hydraulically actuated for active suspension system. The aim of each controller was to minimize the deflection and the acceleration of the suspension system in the presence of road disturbances, modeled by step input excitation wheels. Comparisons between passive and ac-tive, linear simulation models have been carried out with different control schemes. The result of these comparisons were that perfor-mance of the linear system was shown better performance with the Fuzzy-PID controller suggest in this work was the best among other controllers used in analysis. Shows the superior performance of re-sponse amplitude, shorter settling time, small overshot, high steady precision, and good dynamic performance.