TY - GEN
T1 - Control of a variable-winding brushless motor with the application in electric scooters
AU - Tsai, M. C.
AU - Chou, M. C.
AU - Chu, C. L.
PY - 2001
Y1 - 2001
N2 - 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.
AB - 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.
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U2 - 10.1109/IEMDC.2001.939430
DO - 10.1109/IEMDC.2001.939430
M3 - Conference contribution
AN - SCOPUS:14544299605
SN - 0780370910
SN - 9780780370913
T3 - IEMDC 2001 - IEEE International Electric Machines and Drives Conference
SP - 922
EP - 925
BT - IEMDC 2001 - IEEE International Electric Machines and Drives Conference
T2 - 2001 IEEE International Electric Machines and Drives Conference, IEMDC 2001
Y2 - 17 June 2001 through 20 June 2001
ER -