Browse Publications Technical Papers 2020-01-0647
2020-04-14

Development of the Rig and Hardware-in-the-Loop Test Bench for Evaluating Steering Performance 2020-01-0647

The development of vehicles faces changes in many future flows. The vehicle’s power transfer systems are being changed from conventional types to Hybrid, Electric and Hydrogen vehicles. At this moment, the technology of EPS (Electric Power Steering) system has been expanding from a simple torque assist system to LKAS(Lane Keeping Assist System), PAP(Park Assist Pilot), ALCAS(Active Lane Change System), ADAS(Advanced Driver Assistance System). A good test bench is necessary for the evaluation of both hardware and control logics of EPS in these complexities of development process. Simultaneous Rig and HILS tests can be performed to check that the steering hardware system can perform to the concept of the development vehicle and develop EPS control logic performances. The hardware performance of the steering system might be evaluated based on measured friction and stiffness, taking into account various driving conditions. And the control logic of the EPS can be evaluated based on the response capability and steering torque measured through the appropriate vehicle model which could represent virtual driving conditions.

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