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Abstract
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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
Submitted: March 26, 2012
Accepted: April 17, 2012
Published: August 15, 2012 |
Abstract:
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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.
Key words: Fuzzy logic algorithm, seven DOF full body model, simulation analysis, suspensions control, , ,
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Cite this Reference:
Chuan-yin Tang, Guang-yao Zhao, Yi-min Zhang and Yan Ma, . The Application of Fuzzy Control Algorithm of Vehicle with Active Suspensions. Research Journal of Applied Sciences, Engineering and Technology, (16): 2744-2747.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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