Experimental Evaluation of Modified Groundhook Car Suspension with Fast Magnetorheological Damper

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, especia...

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Bibliographic Details
Published in:Actuators 2022-12, Vol.11 (12), p.354
Main Authors: Žáček, Jiří, Šebesta, Karel, Mohammad, Housam, Jeniš, Filip, Strecker, Zbyněk, Kubík, Michal
Format: Article
Language:English
Subjects:
Active damping
adaptive suspension
Algorithms
Comparative analysis
Control algorithms
Design
Efficiency
Electric currents
Groundhook
Laboratories
Light rail transit
Magnetic fields
magnetorheological damper
Response time
semi-active damper
Semiactive damping
Semiactive suspensions
Sensors
Simulation
Strain gauges
Trolleys
Velocity
Viscosity
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Summary: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 µs) 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.
ISSN:2076-0825
2076-0825
DOI:10.3390/act11120354