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Smart Structures and Systems
  Volume 5, Number 3, May 2009 , pages 261-277
DOI: https://doi.org/10.12989/sss.2009.5.3.261
 


Fuzzy-sliding mode control of a full car semi-active suspension systems with MR dampers
L. Zheng and Y. N. Li

 
Abstract
    A fuzzy-sliding mode controller is presented to control the dynamics of semi-active suspension systems of vehicles using magneto-rheological (MR) fluid dampers. A full car model is used to design and evaluate the performance of the proposed semi-active controlled suspension system. Four mixed mode MR dampers are designed, manufactured, and integrated with four independent sliding mode controllers. The siding mode controller is designed to decrease the energy consumption and maintain robustness. In order to overcome the chattering of the sliding mode controllers, a fuzzy logic control strategy is merged into the sliding mode controller. The proposed fuzzy-sliding mode controller is designed and fabricated. The performance of the semi-active suspensions is evaluated in both the time and frequency domains. The obtained results demonstrate that the proposed fuzzy-sliding mode controller can effectively suppress the vibration of vehicles and improve their ride comfort and handling stability. Furthermore, it is shown that the
 
Key Words
    MR fluid damper; semi-active suspension; fuzzy-sliding mode controller
 
Address
L. Zheng and Y. N. Li; State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400044, P.R. China
A. Baz; Department of Mechanical Engineering, University of Maryland, College Park, MD 20742, USA
 

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