Browse Publications Technical Papers 2011-28-0139
2011-10-06

Development of the Hardware-in-the Loop Simulator for Evaluating Performance of EPS System 2011-28-0139

In this paper, the hardware-in-the loop simulator which is used for evaluating performance of the EPS (Electric Power Steering) system has been developed. The HILS system consists of the steering system of the light commercial vehicle - the steering wheel, the EPS module, the universal joint, and the rack bar. These components were placed in proper spaces based on location of their hard points in an actual vehicle. An electric servo motor has been used for generating the road reaction force which is generated by vehicle's kingpin moment. A real-time simulation environment has been developed using CarSim to evaluate performance of EPS through various handling tests. For verifying reliability of the HILS system, various handling tests were performed and compared with the results of actual vehicle tests in the proving ground. Through the developed EPS HILS system, various handling tests were successfully performed in the laboratory.

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