Title: Modelling of continuously variable damper for design of semi-active suspension systems

Authors: S.-J. Heo, K. Park, S.-H. Son

Addresses: Graduate School of Automotive Engineering, Kookmin University, Seoul, 136-702, South Korea. Graduate School of Automotive Engineering, Kookmin University, Seoul, 136-702, South Korea. Graduate School of Automotive Engineering, Kookmin University, Seoul, 136-702, South Korea

Abstract: The continuously variable damper is widely used in the semi-active suspension system since it can yield various damping forces at a given damper velocity. By applying an appropriate control scheme to the damper, satisfaction of both ride comfort and driving safety can be realised. For successful development of the semi-active suspension system, a model that accurately describes the complex and nonlinear behaviour of the continuously variable damper is crucial. In this research, a modelling technique for the continuously variable damper has been studied. Various damper components have been analysed and their effects upon damper characteristics have been closely investigated. The effects of the damper characteristics change upon ride comfort and driving safety have also been investigated via simulations.

Keywords: continuously variable damper; damper model; semi-active suspension system.

DOI: 10.1504/IJVD.2003.002046

International Journal of Vehicle Design, 2003 Vol.31 No.1, pp.41-57

Published online: 15 Aug 2003 *

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