电动自行车调速系统的设计.docVIP

摘 要 单片机控制的永磁无刷直流电动机Intel公司的控制芯片8051单片机。根据永磁无刷直流电动机CAD图纸和完整版word版说明书，凡下载了本文的读者请加QQ或留下你的联系方式（QQ邮箱）最后，希望此文能够帮到你！ 关键词：单片机、脉宽调速系统PWM、永磁无刷直流电动机 Abstract 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 Intels 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, PWM pulse speed control system, permanent magnet brushless DC motor, the eighth of digital dynamic display, speed sensor, battery 目 录 第一章 引言 …………………………………………………………………………1 第二章 系统要求 ……………………………………………………………………2 第三章 总体规划 ……………………………………………………………………4 第四章 电路设计 ……………………………………………………………………5 第五章 主要器件性能及原理MCS-51单片机内部结构2 A/D转换芯片三端式稳压器6 译码器.7 电动自行车的核心蓄电池控制器与保护功能结束语 第一章 引言 电动车的发展史比燃油汽车更长，世界上第一辆机动车就是电动车。后来，由于燃油汽车技术的迅速发展，而电动车在能源技术和行驶里程的研制上长期未能取得突破，从20世纪20年代初至60年代末，电动车的发展进入了一个沉寂期。进入70年代以来，由于中东石油危机的爆发以及人类对自然环境的日益关注，电动车才再度成为技术发。 近几十年来，主要工业化国家为电动车的开发投入了大量的人力和财力，电动车的各项相关技术也取得了重大的进展。尽管电动车在能源和行驶里程的研制方面，至今尚未取得突破性的进展，但是电动车的美