吉林大学学报(工学版) ›› 2012, Vol. 42 ›› Issue (01): 27-32.

• paper • Previous Articles     Next Articles

Vehicle drive motor current-sensorless control method

ZHOU Ya-fu1,2, SHEN Xiao-yong1,2, LIAN Jing1,2, LI Jun3, LIU Ming-hui3, ZHAO Zi-liang3   

  1. 1. State Key Laboratory of Structure Analysis for Industrial Equipment,Faculty of Vehicle Engineering and Mechanics,Dalian University of Technology, Dalian 116024, China;
    2. School of Automotive Engineering, Dalian University of Technology, Dalian 116024, China;
    3. R&D Center China FAW Group Coporation, Changchun 130011, China
  • Received:2010-11-02 Online:2012-01-01 Published:2012-01-01

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Abstract:

A current-sensorless control method was proposed to apply in the vehicle drive motor to alleviate the shortecomings of the traditional vector control(narrow efficient work area)and the feedback loop control(being liable to over current). This method directly controls the magnitude and phase angle of the voltage vector according to the command motor torque and speed to realize the control of the real torque and speed of the motor. The proposed method saves the cost of the current sensor, avoids the dependence on the current sensor, the possible over current of the close loop control, and being unable to control under the condition of the current sensor malfunction. The simulation and bench test results show that the proposed method can not only increase the efficient work area, but also improve the reliability of the motor control system.

Key words: vehicle engineering, drive motor, current-sensorless control, electric vehicle, MAP graphic

CLC Number: 

  • U469.72


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