中国半导体行业协会封装分会会刊

中国电子学会电子制造与封装技术分会会刊

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电子与封装 ›› 2021, Vol. 21 ›› Issue (5): 050501 . doi: 10.16257/j.cnki.1681-1070.2021.0510

• 产品、应用与市场 • 上一篇    下一篇

电动两轮车再启动控制系统设计

宋锦;万清;李克靖   

  1. 中科芯集成电路有限公司,江苏 无锡 214072
  • 收稿日期:2020-11-18 出版日期:2021-05-18 发布日期:2020-12-15
  • 作者简介:宋锦(1987—),男,江苏沛县人,硕士,现从事电机运动控制的研究。

Design of RestartControl System for Electric Bicycle

SONG Jin, WAN Qin, LI Kejing   

  1. China Key System & Integrated CircuitCo., Ltd., Wuxi 214072, China
  • Received:2020-11-18 Online:2021-05-18 Published:2020-12-15

摘要: 为了解决电动两轮车再启动速度跟踪不对导致的电机切入不平滑问题,提出了基于反电动势的占空比估算方法。通过分析电机的调速特性,推导反电动势和占空比的关系,根据采集的反电动势,估算电机再启动时的占空比。该算法采用32位MCU作为载体,设计了反电动势采样电路和再启动控制系统,实现了电机非静止条件下的平滑启动。

关键词: 电动两轮车, 无刷直流电机, 启动控制, 反电动势

Abstract: The restart speed tracking of the electric bicycle is not correct, which leads to the motor cut in is not smooth. In the light of the back electromotive force (BEMF) theory, a duty cycle estimation method is proposed to solve this problem. The relationship between the BEMF and the duty cycle is deduced by analyzing the speed regulation characteristics of the motor, and the duty cycle of the motor is estimated according to the collected BEMF. The algorithm uses 32-bit MCU as the carrier, designs the BEMF sampling circuit and restart control system to realize the smooth starting of the motor under non-static conditions.

Key words: electricbicycle, brushlessDCmotor, startupcontrol, backelectromotiveforce

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