吉林大学学报(工学版) ›› 2014, Vol. 44 ›› Issue (01): 5-10.doi: 10.13229/j.cnki.jdxbgxb201401002

• paper • Previous Articles     Next Articles

Control of induction motor for electric power steering based on on-line resistance identification

ZHAO Fei-xiang, ZHANG Jian-wei, GUO Kong-hui, ZHANG Li-hao   

  1. State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022, China
  • Received:2013-03-04 Online:2014-01-01 Published:2014-01-01

Abstract:

In order to improve the torque control accuracy and response in Electric Power Steering (EPS) using induction motor, an EPS mathematical model was established. When using D-Q current model as the rotor flux observer, the impact the of the variation of rotor resistance on the torque control was analyzed. The feedforward and feedback integrating control and on-line resistance identification were employed to improve the accuracy of torque control and current tracking response. Simulation results show that the proposed method can significantly improve the current response speed and accuracy in induction motor control of EPS system.

Key words: vehicle engineering, electric power steering, induction motor, assistance characteristics curve, feed-forward control, resistance on-line identification

CLC Number: 

  • U463.4

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