Control of a variable-winding brushless motor with the application in electric scooters

M. C. Tsai, M. C. Chou, C. L. Chu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

18 Citations (Scopus)

Abstract

This paper presents the drive control of a variable-winding brushless DC motor for electric scooters. The approach is based on changing the winding connection on the motor's stator where the two sets of motor windings are controlled alternately to achieve both high starting torque and high operating speeds. The series connection is used at low speed operation for high torque and gives smooth acceleration from a standing start, and the parallel connection is used mainly for high-speed operation. A closed-loop torque control scheme is employed such that the torque-speed characteristics of the drive output have a function similar to that of continuously variable transmissions (CVT). By combining the motor winding connection control and the torque control, this 2-state-CVT is able to improve the overall efficiency and reduce the weight of electric scooters.

Original languageEnglish
Title of host publicationIEMDC 2001 - IEEE International Electric Machines and Drives Conference
Pages922-925
Number of pages4
DOIs
Publication statusPublished - 2001 Dec 1
Event2001 IEEE International Electric Machines and Drives Conference, IEMDC 2001 - Cambridge, MA, United States
Duration: 2001 Jun 172001 Jun 20

Publication series

NameIEMDC 2001 - IEEE International Electric Machines and Drives Conference

Other

Other2001 IEEE International Electric Machines and Drives Conference, IEMDC 2001
CountryUnited States
CityCambridge, MA
Period01-06-1701-06-20

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Mechanical Engineering

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