毕业设计（论文）-无分电器点火系统在发动机上的应用研究.docVIP

二 〇 一三 年 六 月 摘要 随着汽车技术的快速发展、电子技术的进步以及绿色环保要求，人们对汽车发动机点火系统性能的要求越来越高，不仅要求实时性强、点火正时特性好、抗干扰能力强，而且要求集成度高、减少故障点、具有自我诊断和备用点火功能，因此发动机电控技术便成为主流技术，电子技术在汽车点火系统上的应用更是与日俱增，汽车点火系统由过去传统的触点式点火系统逐步发展为无分电器点火（Distributorless Ignition）系统，无分电器点火系统已成为现代汽车发动机均采用的高级微机控制点火系统，真正意义上为构建绿色环保家园做了很大贡献。 本设计首先讨论汽车发动机原理，汽车点火系统的种类、结构组成、工作原理以及发动机点火系统的发展历程，从本质上了解发动机点火系统；接着进一步查阅资料详细分析研究无分电器点火系统，对比分析无分电器点火系统与传统点火系统的区别，对比不同车辆不同点火系统的功效以及无分电器点火系统在发动机上应用的可行性；，最后进行实验与调试，利用发动机点火试验台实验，对比分析五种点火系统的结构特点与工作原理的不同；通过示波器测试大众2QVS试验台，凌志LS400 1UZ-FE发动机试验台点火系统波形实验，根据实验效果、波形的对比，分析研究发动机点火系统的不同所在，最后归纳总结无分电器点火系统相对于其他点火系统的优点所在、其实用效果所在。 关键词：发动机；点火系统；波形分析；DLI Abstract With the rapid development of automobile technology, advances in electronic technology and environmental protection requirements, people on the car engine ignition system performance requirements are high, not only requires real-time, ignition timing characteristics of a good, strong anti-jamming capability, and require integration, reduce points of failure, self-diagnostics and spare ignition function, so the engine electronic control technology will become mainstream technology, electronic technology in the automotive ignition system application is growing, automotive ignition system consists of the traditional contact type ignition system gradually developed into non-distributor ignition (Distributorless Ignition) system, no distributor ignition system has become the modern automobile engines are used in advanced computer controlled ignition system, to build a truly green homes make great contributions. The design principles discussed first automobile engine, automobile ignition system type, structure, working principle and the engine ignition system development process, understand the essence engine ignition system; followed by further detailed analysis of data access without distributor ignition systems, comparative analysis no distributor ignition system ignition system with the traditional distinction, compare different vehicles as well as the e