Title: A semiactive vibration absorber (SAVA) for automotive suspensions

Authors: C. Mo, M. Sunwoo

Addresses: Department of Auto. Eng., SangJu National, University, 386 Gajang-Dong, Sangju, Kyungbuk 742-711, Korea. Department of Auto. Eng., Hanyang, University, 17 Haengdang-Dong, Sungdong-Ku, Seoul 133-791, Korea

Abstract: The paper reports the development of a practical and effective technique for the automatic regulation of a hydraulic semiactive vibration absorber (SAVA) for automobiles. The work relies on a consistent hydraulic model of the actuator dynamics that includes the effects of fluid compressibility and a (nonlinear) viscous loss characteristic. A bistate control algorithm is developed using a Lyapunov approach. The performance of the proposed control design was established experimentally on a vibrating test stand. The work provides evidence that the inexpensive hardware design makes it possible to improve the ride and handling performance.

Keywords: automotive suspension; bistate control; hydraulic semiactive vibration absorber (SAVA).

DOI: 10.1504/IJVD.2002.002002

International Journal of Vehicle Design, 2002 Vol.29 No.1/2, pp.83-95

Published online: 15 Aug 2003 *

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