Automotive Ride Comfort Control Using MR Fluid Damper

Mahmoud El-Kafafy, Samir M. El-Demerdash, Al-Adl Mohamed Rabeih

University of Helwan, Cairo, Egypt.

DOI: 10.4236/eng.2012.44024                

Abstract

In this paper, the performance of automotive ride comfort using Bouc-Wen type magneto-rheological (MR) fluid damper is studied using a two degree of freedom quarter car model. The sliding mode control is used to force the MR damper to follow the dynamics of ideal sky-hock model. The model is tested on two excitations, the first is a road hump with severe peak amplitude and the second is a statistical random road. The results are generated and presented in time and frequency domains using Matlab/Simulink software. Comparison with the fully active, ideal semi-active and conventional passive suspension systems are given as a root mean square values. Simulation results, for the designed controller, show that with the controllable MR damper has a significant improvement for the vehicle road holding then its lateral stability as well as road damage in comparison with passive, fully active and ideal semi-active suspension systems.

Keywords

Ride Comfort; Rheological Fluid Damper; Vibration Control

Conflicts of Interest

The authors declare no conflicts of interest.

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