Administrator by China Associction for Science and Technology
Sponsored by China Society of Automotive Engineers
Published by AUTO FAN Magazine Co. Ltd.

Automotive Engineering ›› 2025, Vol. 47 ›› Issue (7): 1383-1393.doi: 10.19562/j.chinasae.qcgc.2025.07.015

Previous Articles    

Research on Low-Cost Sinusoidal Drive Control Strategy for Brushless DC Motor Based on EMB

Cheng Chang1,Liang Chu1,Penghao Zhu1,Di Zhao2()   

  1. 1.College of Automotive Engineering,Jilin University,Changchun 130022
    2.Jilin University,Key Laboratory of Bionic Engineering (Ministry of Education),Changchun 130022
  • Received:2024-11-20 Revised:2025-01-10 Online:2025-07-25 Published:2025-07-18
  • Contact: Di Zhao E-mail:dizhao@jlu.edu.cn

Abstract:

In this paper, a low-cost sinusoidal drive control strategy for brushless DC (BLDC) motor applied to electro-mechanical brake (EMB) is studied. For the technical challenges associated with low-cost solutions, including difficulties with motor cold starting, low accuracy in rotor position estimation, and inefficient motor operation due to suboptimal phase advance angle settings, as well as low precision in motor speed calculation and control, a sinusoidal cold-start method based on motor load observers, a rotor position estimation method using low-resolution switch hall sensors, a self-adjusting phase advance angle control method based on genetic algorithms, a low-cost speed calculation method, and a speed control method based on model predictive control are proposed. The bench tests results show that the proposed control strategy effectively improves motor efficiency, expands the high-efficiency operating range, and optimizes motor performance without increasing hardware cost, thereby promoting the engineering application of EMB.

Key words: EMB, BLDC motor, low-cost sinusoidal drive control, rotor position estimation, speed control