Volume 7 Number 4
November 2010
Article Contents
Hai-Ping Du and Nong Zhang. Robust Active Suspension Design Subject to Vehicle Inertial Parameter Variations. International Journal of Automation and Computing, vol. 7, no. 4, pp. 419-427, 2010. doi: 10.1007/s11633-010-0523-7
Cite as: Hai-Ping Du and Nong Zhang. Robust Active Suspension Design Subject to Vehicle Inertial Parameter Variations. International Journal of Automation and Computing, vol. 7, no. 4, pp. 419-427, 2010. doi: 10.1007/s11633-010-0523-7

Robust Active Suspension Design Subject to Vehicle Inertial Parameter Variations

Author Biography:
  • Nong Zhang received the Ph.D.degree in 1989 from the University of Tokyo, Japan.

  • Corresponding author: Hai-Ping Du received the Ph.D.degree in mechanical design and theory from Shanghai Jiao Tong University,Shanghai, PRC in 2002.
  • Received: 2008-08-29
Fund Project:

supported by the Australian Research Council(No.ARC LP0560077)and the University of Technology,Sydney,Australia

通讯作者: 陈斌, bchen63@163.com
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Robust Active Suspension Design Subject to Vehicle Inertial Parameter Variations

  • Corresponding author: Hai-Ping Du received the Ph.D.degree in mechanical design and theory from Shanghai Jiao Tong University,Shanghai, PRC in 2002.
Fund Project:

supported by the Australian Research Council(No.ARC LP0560077)and the University of Technology,Sydney,Australia

Abstract: This paper presents an approach in designing a robust controller for vehicle suspensions considering changes in vehicle inertial properties.A four-degree-of-freedom half-car model with active suspension is studied in this paper,and three main performance requirements are considered.Among these requirements,the ride comfort performance is optimized by minimizing the H norm of the transfer function from the road disturbance to the sprung mass acceleration,while the road holding performance and the suspension deflection limitation are guaranteed by constraining the generalized H2 (GH2) norms of the transfer functions from the road disturbance to the dynamic tyre load and the suspension deflection to be less than their hard limits,respectively.At the same time,the controller saturation problem is considered by constraining its peak response output to be less than a given limit using the GH2 norm as well.By solving the finite number of linear matrix inequalities (LMIs) with the minimization optimization procedure,the controller gains,which are dependent on the time-varying inertial parameters,can be obtained.Numerical simulations on both frequency and bump responses show that the designed parameter-dependent controller can achieve better active suspension performance compared with the passive suspension in spite of the variations of inertial parameters.

Hai-Ping Du and Nong Zhang. Robust Active Suspension Design Subject to Vehicle Inertial Parameter Variations. International Journal of Automation and Computing, vol. 7, no. 4, pp. 419-427, 2010. doi: 10.1007/s11633-010-0523-7
Citation: Hai-Ping Du and Nong Zhang. Robust Active Suspension Design Subject to Vehicle Inertial Parameter Variations. International Journal of Automation and Computing, vol. 7, no. 4, pp. 419-427, 2010. doi: 10.1007/s11633-010-0523-7
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