International Journal of Information Engineering and Electronic Business (IJIEEB)
IJIEEB Vol. 2, No. 2, 8 Dec. 2010
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Variable Structure Control on Active Suspension of 4 DOF Vehicle Model
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Author(s)
Chuanbo Ren
1,*
Cuicui Zhang
1
Lin Liu
1
Index Terms
Active suspension, 4-DOF automobile model, variable structure control, robustness
Abstract
In this paper, the theory of a variable structure model following control (VSMFC) is employed to the design of the controller for an active suspensions of 4-degree-of-freedom (4-DOF) automobile model. The sliding mode equation is derived by applying VSMFC theory and the parameters of the switching function are obtained by using the method of pole assignment; a hierarchical algorithm with control variables started in sequence is applied to solve the active force; a method of exponential approach law is used to improve the dynamic performance of the controller. The efficacy of the controller is verified by simulation carried out with the help of Matlab/ Simulink. The results show that the active suspension controller based on VSMFC theory is superior in both robustness and performance.
Cite This Paper
Chuanbo Ren, Cuicui Zhang, Lin Liu, "Variable Structure Control on Active Suspension of 4 DOF Vehicle Model", International Journal of Information Engineering and Electronic Business(IJIEEB), vol.2, no.2, pp.54-64, 2010. DOI:10.5815/ijieeb.2010.02.08
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