Electric Bicycle Speed Control System Design
Abstract
Author : Chen Yan
Tutor : Li Xiuying
SCM control of permanent magnet brushless DC motor speed control system
applicable to electric bicycles, and other low-power work. Redundant power and can
return to collapse. The system has good speed performance, high power factor, energy
saving, small size, light weight, and other advantages.
This paper analyzes the requirements from the system, the whole system will be
divided into four parts, analysis and discussion of the various parts of the circuit of the
control strategy, implementation method. Discussed in detail the status of the various
systems and signal transduction, and have the system in different parts of the state the
status of the work. Part of the system control circuit based on Intel's 8051 chip
microcontroller. According to the permanent magnet brushless DC motor control of
the PWM pulse width, speed sensor and passed through eighth speed digital dynamic
display of speed, through hardware and software support, for the entire system design
requirements. This paper is designed to allow more people to the correct
understanding of electric bicycles, and electric bicycles on the main device
maintenance, and would extend the life of electric bicycles.
Key words: SCM; pulse speed control system; motor; speed sensor; battery
