Article: Integrated design of structure/control systems of semi-active suspension using genetic algorithms and H∞ control scheme Journal: International Journal of Vehicle Autonomous Systems (IJVAS) 2003 Vol.1 No.3/4 pp.387 - 404 Abstract: As closed-loop performance specifications of dynamic system become more and more stringent, leading to higher and higher performance systems, there exists a need to consider more general design approaches of such systems such as the integrated structure/controller design approach to solve such problems. Integrated structure/controller design approaches applied to vehicle active/semi-active suspension systems typically first considers the design of the mechanical structure parameters, followed by design of the control system. When the structure design and controller design are considered independently, global optimal performance for the system cannot be achieved. This paper presents an approach for the design of both mechanical structure parameters and control parameters of semi-active suspension systems, by integrating the structure and control parameter design based on genetic algorithms (GA) and the H∞ control scheme. The effectiveness of the proposed integrated design method, to improve riding comfort, is demonstrated with theoretical analysis, simulation and experimental results. Inderscience Publishers - linking academia, business and industry through research

Title: Integrated design of structure/control systems of semi-active suspension using genetic algorithms and H_∞ control scheme

Authors: Wuwei Chen, Qirui Wang, James K. Mills, Dong Sun

Addresses: Department of Mechanical and Automotive Engineering, Hefei University of Technology, Hefei, Anhui 230009, P.R. China. ' Department of Mechanical and Automotive Engineering, Hefei University of Technology, Hefei, Anhui 230009, P.R. China. ' Department of Mechanical and Industrial Engineering,University of Toronto, 5 King's College Road, Toronto, Ontario M5S 3G8, Canada. ' Department of Manufacturing Engineering and Engineering Management, City University of Hong Kong, Kowloon, Hong Kong

Abstract: As closed-loop performance specifications of dynamic system become more and more stringent, leading to higher and higher performance systems, there exists a need to consider more general design approaches of such systems such as the integrated structure/controller design approach to solve such problems. Integrated structure/controller design approaches applied to vehicle active/semi-active suspension systems typically first considers the design of the mechanical structure parameters, followed by design of the control system. When the structure design and controller design are considered independently, global optimal performance for the system cannot be achieved. This paper presents an approach for the design of both mechanical structure parameters and control parameters of semi-active suspension systems, by integrating the structure and control parameter design based on genetic algorithms (GA) and the H_∞ control scheme. The effectiveness of the proposed integrated design method, to improve riding comfort, is demonstrated with theoretical analysis, simulation and experimental results.

Keywords: semi-active suspension; integrated design; genetic algorithm; H_∞ control; dynamic systems; riding comfort; vehicle comfort.

DOI: 10.1504/IJVAS.2003.004379

International Journal of Vehicle Autonomous Systems, 2003 Vol.1 No.3/4, pp.387 - 404

Published online: 10 May 2004 *

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Title: Integrated design of structure/control systems of semi-active suspension using genetic algorithms and H_∞ control scheme