An Architecture of Hardware and Driver in the Loop Simulation for Electric Power Assisted Steering System
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This paper introduces an architecture for virtual development of electric power assisted steering (EPAS) system, which is implemented at Volvo Cars. The architecture involves an EPAS power pack rig and driver in the loop, so engineers can test both the ECU software and electric motor on a virtual prototype vehicle. Effective results are shown for tests in low-mid frequency and at mid-high vehicle speed. Currently, the high frequency and low speed test is still challenging due to vibration and instability, which should be addressed by the control improvement.
KeywordsHIL simulation EPAS system Objective and subjective test
The authors would like to thank ITEAM project funded by the European Union Horizon 2020 research and innovation program. The authors also like to appreciate support from Prof. Lars Drugge from KTH Royal Institute of Technology.
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