Sliding Mode Control for Magneto-Rheological Vehicle Suspension Accounting for its Nonlinearity

Abstract:

The non-linear characteristics of magneto-rheological (MR) suspension systems have limited control performance of modern control theory based on linear feedback control. In this paper, a four DOF half car suspension model with two nonlinear MR dampers is adopted. In order to account for the nonlinearity, a sliding mode controller, which has inherent robustness against system nonlinearity, is formulated to improve comfort and road holding of the car under industrial specifications and it is fit to semi-active suspensions. The numerical result shows that the semi-active suspension using the sliding mode controller can achieve better ride comfort than the passive and also improve stability.

• Periodical: Applied Mechanics and Materials (Volumes 433-435)
• Pages: 1072-1077
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.433-435.1072
• Online since: October 2013
• Authors: Yu Lin Zhang
• Keywords: Magneto-Rheological Damper, Nonlinearity, Sliding Mode Control, Vehicle Suspension

References

[1] Wereley N.M. and Pang L, Nondimensional analysis of semi-active electrorheological and magnetorheological dampers using approximate parallel plate models, Smart Materials and Structures, vol. 7, no. 5, (1998) pp.732-743.

DOI: 10.1088/0964-1726/7/5/015

[2] S. -J. Huang and H. -C. Chao, Fuzzy logic controller for vehicle active suspension system, Proc. I MECH E Part D J. Automobile Engineering, vol. 214-D, (2000)p.1–12.

DOI: 10.1243/0954407001527178

[3] D. Hrovat, Application of optimal control to advanced automotive suspension design, Trans. ASME J. Dynam. Syst., Meas., Cantr., vol. 115, (1993)p.328–342.

[4] Du, H., Sze, K. Y., Lam, J., Semi-active control of vehicle suspension with magneto-rheological dampers', Journal of Sound and Vibration, 283, (2005)pp.981-996.

DOI: 10.1016/j.jsv.2004.05.030

[5] A. Alleyne and J.K. Hedrick, Nonlinear control of a quarter car active suspension, in proc. 1992 Amer. Contr. Conf. (ACC), Chicago IL, June, (1992).

DOI: 10.23919/acc.1992.4792011

[6] Alleyne, A., Neuhaus, P.D., Hedrick, J.K., Application of nonlinear control theory to electronically controlled suspensions, Vehicle System dynamics, Vol. 22, (1993)pp.309-320.

DOI: 10.1080/00423119308969033

[7] Kurimoto, M. and Yoshimura, T., Active suspension control of passenger cars using sliding mode controllers (based on reduced models), International Journal of Vehicle Design, Vol. 19, No. 4, (1998)pp.402-414.

[8] Yagiz, N. and Yuksek, I., Sliding mode control of active suspensions for a full vehicle model, International Journal of Vehicle Design, Vol. 26, Nos. 2/3, (2001)p.264–276.

DOI: 10.1504/ijvd.2001.001943