Title: Performance and design consideration for continuously controlled semi-active suspension systems

Authors: Seung-Jin Heo, Kihong Park, Sung-Ho Hwang

Addresses: School of Mechanical and Automotive Engineering, Kookmin University, 861-1, JungNeung-Dong, SungBuk-Gu, Seoul 136-702, South Korea. School of Mechanical and Automotive Engineering, Kookmin University, 861-1, JungNeung-Dong, SungBuk-Gu, Seoul 136-702, South Korea. Korea Institute of Industrial Technology, 35-3 HongChonRi, IbJangMyon, ChonAnSi 330-820, South Korea

Abstract: The semi-active suspension system is getting widely adopted in passenger vehicles for its ability to improve ride comfort with low cost and light weight. A key to the success is to develop practical controllers that yield performance enhancement over the passive damper under various driving conditions. To this end, several control strategies have been studied and evaluated in this research in consideration of practical aspects such as nonlinearity and dynamics of the damper. From simulation results, it has been observed that, with the proposed control schemes, ride comfort can be significantly upgraded while suppressing degradation of driving safety.

Keywords: semi-active suspension system; modified skyhook control; force following control; wheel resonance control.

DOI: 10.1504/IJVD.2000.001902

International Journal of Vehicle Design, 2000 Vol.23 No.3/4, pp.376-389

Available online: 18 Aug 2003 *

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