Design and Manufacturing of Rim Motors on Electric Wheelchair
Date Issued
2007
Date
2007
Author(s)
Lee, Zhou-Han
DOI
en-US
Abstract
General electric wheelchairs are driven by a high speed motor with reduction gears and differential gears. The design poses several disadvantages because the wheel-chairs are inevitably heavy, big, and less efficient. In this study, a direct-drive brush-less DC rim motor is designed to produce enough torque without other mechanical de-vices. In this way, the electric wheelchair’s functions are enhanced with light weight. The dimensions of the motor are determined by optimal analysis, so the motor is designed with the least cost. The optimal sizes are simulated and verified by finite element analysis. Furthermore, the geometry is modified to reduce the cogging torque and torque ripple. The experiment results show that the performance of the whole wheelchair system is developed, meeting the standards set by this study.
Subjects
手輪馬達
電動輪椅
弧形磁鐵
力矩漣波
rim motor
electric wheelchair
arc magnet
torque ripple
Type
thesis