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2012 (Vol. 4, Issue: 16)
Article Information:

The Application of Fuzzy Control Algorithm of Vehicle with Active Suspensions

Chuan-yin Tang, Guang-yao Zhao, Yi-min Zhang and Yan Ma
Corresponding Author:  Chuan-yin Tang 

Key words:  Fuzzy logic algorithm, seven DOF full body model, simulation analysis, suspensions control, , ,
Vol. 4 , (16): 2744-2747
Submitted Accepted Published
March 26, 2012 April 17, 2012 August 15, 2012

In this study, a fuzzy logic control design is represented for the control of an active suspension system. A seven degrees of freedom non linear full vehicle model is established, instead of two degrees of freedom one quarter model and four degrees of freedom half body model and the road roughness intensity is modeled as a white noise stochastic process. Then a fuzzy logic controller is designed for the control of the seven degrees of freedom full vehicle model, the input variables are the suspension displacement and the output variables are the control force. The time responses of the full vehicle model are obtained, not only the vertical body acceleration, but also the roll angular acceleration and pitch angular acceleration. Finally, uncontrolled and controlled cases are compared. With the aid of software Matlab/simulink, simulation process is done. Simulation results indicate that the proposed active suspension system proves to be effective in the vibration isolation of the suspension system both in ride comfort and in stability.
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  Cite this Reference:
Chuan-yin Tang, Guang-yao Zhao, Yi-min Zhang and Yan Ma, 2012. The Application of Fuzzy Control Algorithm of Vehicle with Active Suspensions.  Research Journal of Applied Sciences, Engineering and Technology, 4(16): 2744-2747.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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