E CONTROL AND EXPERIMENTAL EVALUATION ON A QUARTER-CAR TEST RIG
Keywords:Suspension system, quarter-vehicle, test rig
In this paper a quarter-vehicle full-scale suspension test rig was designed and manufactured,
the suspension is considered semi-active as the electrohydraulic (EH) damper used is fully
controlled. This gives an indoor-based simulation tool which is important for vehicle testing;.
This reduces the cost significantly with accurate results, especially when designing a new
suspension system. The aim of the current work was to build a new quarter-vehicle test rig
with expandable capabilities for diverse design objectives, also may be used for academic
purposes. The control objective was achieved by using dynamic characteristics of the
electrohydraulic (EH) damper to suppress the oscillation of the sprung mass due to road
irregularities. The test rig was constructed using a Genesis G80 (2016) suspension system.
Finally, the simulation results demonstrated that the proposed controller used be able to
efficiently regulate the chassis vertical oscillation under these irregularities. The experimental
results for the quarter-car model showed good results between experimental and simulated
results, where the proportion of conformity about 95%