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MIMO intelligent-PID controller design for half car system based on model free control technique

Djemal Fathi, Haddar Maroua, Baslamisli S. Caglar, Chaari Riadh, Chaari Fakher, Haddar Mohamed

Journal of Theoretical and Applied Mechanics

2020

Vol. 58 nr 4

953--969

A novel decoupled Multi-Input-Multi-Output Model Free Control strategy is presented in this paper to improve the performance of an active suspension system implemented on a half car model. To damp vibrations generated by road excitation, an algebraic online compensator was integrated in the structure of a classical PID controller to avoid the impact of unpredictable disturbances. The key element of the proposed technique is a non-asymptotic observer that can avoid the use of statistical conventional techniques. Furthermore, the advantage of easy implementation is achieved where only two accelerometers are sufficient and adequate. A comparison with classical PID and LQR is provided to demonstrate the improvement made by the proposed scheme.