Experimental Evaluation of Modified Groundhook Car Suspension with Fast Magnetorheological Damper
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Date
2022-11-29
Authors
Žáček, Jiří
Šebesta, Karel
Mohammad, Housam
Jeniš, Filip
Strecker, Zbyněk
Kubík, Michal
0000-0002-2883-6702Advisor
Referee
Mark
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MDPI
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Abstract
The car suspension setting is always a trade-off between comfort and handling. The semi-active damper system seems to be an option for reducing the compromise between the two demands. This paper deals with the effect of the magnetorheological damper setting on a car’s suspension performance, especially tire grip, which was directly measured. A unique test rig was developed, and an experimental trolley with a fast magnetorheological damper (response time of 3 ms) was used in the paper. The damper was controlled by a modified Groundhook algorithm. Compared with the passive regime, the experiments showed a 30% improvement when using the Groundhook algorithm and when the damper was adequately set. The experiments proved the trends that were set by simulations.
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Peer-reviewed
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en