吉林大学学报(工学版) ›› 2013, Vol. 43 ›› Issue (01): 1-5.

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Road feel feedback control for steer by wire system based on electric power steering

ZHENG Hong-yu, ZONG Chang-fu, HE Lei, WANG Xiang   

  1. State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022, China
  • Received:2012-01-08 Online:2013-01-01 Published:2013-01-01

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Abstract: A dynamics model was built for the steer-by-wire(SBW) system to study the road feel generation mechanism to deal with the need of simulative generation of road feel of SBW system. Based on the analysis of the assist characteristic the returnability and the active damping control strategy of the electric power steering(EPS) system, an integrated road feel simulation control algorithm was proposed. In the algorithm, the EPS rack force information was acquired by measuring the steering motor current. The hardware-in-the-loop tests were performed under on-center and lemniscate test conditions. The results show that the proposed road feel simulation method guarantees the steering easiness at low speeds and road feel clearness at high speeds, satisfying the driver need for road feel feedback.

Key words: vehicle engineering, road feel feedback, electric power steering (EPS), steer by wire (SBW), hardware-in-the-loop test

CLC Number: 

  • U463.4
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