目录摘要..............................................................IABSTRACT..............................................................II第一章绪论...............................................11.1课题的研究背景及发展状况..................11.1.1能源与环境问题...............................11.1.2电机控制技术的发展.......................21.1.3功率半导体器件与驱动电路的发展.21.1.4电机控制器的发展...........................31.1.5电机控制理论的发展.......................31.2电动自行车的组成部分及其特点...........4第二章关键部件的特性分析......................62.1蓄电池特性分析....................................62.2电机特性分析........................................62.2.1稀土永磁无刷直流电机的基本结构和工作原理...............................................62.2.2无刷直流电机的数学模型分析.........92.2.3电机的运行特性分析......................112.2.4机械特性和调速特性分析..............15第三章基于单片机的系统控制策略研究...173.1控制系统的整体构成...........................173.2系统主要控制策略概述.......................183.2.1位置检测信号处理单元..................183.2.2电流检测信号处理单元..................183.2.3速度调节方案.................................193.2.4速度检测方案.................................223.2.5起动与换相控制方案......................233.2.6蓄电池检测方案.............................243.2.7驱动、逆变电路控制方案..............253.2.8故障检测与系统保护......................263.3核心控制器件的选择...........................273.3.1单片机概述....................................273.3.2Atmega8特性介绍...............................28第四章系统硬件设计.................................304.1信号检测电路设计...............................304.1.1位置检测........................................304.1.2电流检测........................................314.1.3转子位置检测电路.........................324.2电机转速控制电路...............................324.2.1测速电路........................................324.2.2换向调速电路.................................324.2.3速度检测........................................334.2.4速度给定环节.................................344.2.5系统软件控制.................................354.3三相全桥逆变电路及其功率驱动的设计.364.4PWM波的控制单元..................................374.4.1PWM信号的产生.................................374.4.2PWM波的输出控制.............................394.5电池电压检测单元...............................404.6系统硬件可靠性设计...........................404.6.1电源与集成芯片去藕......................404.6.2隔离技术........................................414.6.3电磁兼容设计.................................41第五章系统软件设计.................................425.1主程序的设计......................................425.2各功能模块的设计思想.......................435.2.1位置检测模块.................................435.2.2换相控制模块.................................455.2.3A/D采样模块....................................455.2.4双闭环控制模块.............................475.3软件的可靠性设计...............................495.3.1采用模块化程序设计方法..............495.3.2合理安排中断.................................495.3.3程序“跑飞”与“死锁”的解脱...50第六章结束语...........................................51参考文献.....................................................52致谢.................................................
