交通运输毕业设计（论文）-电动助力转向系统的应用现状及发展趋势汇.doc

河南农业大学 本科生毕业论文（设计） 题 目 电动助力转向系统的应用现状及 发展趋势 学 院 机电工程学院 专业班级 交通运输07级3班 学生姓名 指导教师 撰写日期：2011年 5 月 10 日 摘 要 关键词：朗读 显示对应的拉丁字符的拼音 Electric Power Steering System Application Situation and the Development Trend Abstract Electric power steering system is a key component of automotive chassis, there is of great significance to research its development status and application trends, This paper firstly introduces the performance and features of all kinds of electric power steering system, then classifies them and contrastive analyses the advantages and the disadvantages of which. After the detailed introduce of structure, working principle and advantages for typical electric power steering system, the key technology and the principles of current control of which are all described. Based on the application and development status of electric power steering system at home and abroad , this paper forecasts the further growing trends of which, and points out the mainstream development direction of automotive power steering technology is electric power steering technology Finally, the structure, working principle and advantages of wire control steering system in future are analyzed, which will be in dominant in the field of power steering , and great significance to improve the safety performance of steering system. Key Words：Car; Electric Power Steering; Working Principle; Application Status; Development Tendency; Wire Control Steering System 目 录 1引言 1 2电动助力转向系统综述 2 2.1 电动助力转向系统的性能及特点 2 2.1.1电动助力转向系统的特点 2 2.1.2电动助力转向系统的性能 2 2.2 电动助力转向系统的分类 3 2.3电动助力转向系统的结构 4 2.3.1 扭矩传感器 5 2.3.2车速传感器 6 2.3.3助力电动机 8 2.3.4减速机构 9 2.3.5电磁离合器 9 2.3.6电控单元(ECU) 10 2.4电动助力转向系统的工作原理 11 2.5电动助力转向系统的优点 12 3电动助力转向系统的关键技术及电流控制 13 3.1 电动助力转向系统的关键技术 13 3.2 电动助力转向系统的电流控制 14 4电动助力转向系统的应用概况 16 4.1 电动助力转向系统国外应用概况 17 4.1.1电动助力转向系统国外的发展历史 17 4.1.2电动助力转向系统在本田雅阁的应用 18 4.2电动助力转向系统国内应用概况