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1、 申请上海交通大学工程硕士专业学位论文申请上海交通大学工程硕士专业学位论文 柴油机电控高压共轨燃油喷射系统仿真与低排放技术研究柴油机电控高压共轨燃油喷射系统仿真与低排放技术研究 学 学 校：上海交通大学校：上海交通大学 院 院 系：机械与动力工程学院系：机械与动力工程学院 工程领域：动力工程工程领域：动力工程 交大导师：周校平 交大导师：周校平 副教授副教授 企业导师：沈捷 教授级高工 企业导师：沈捷 教授级高工 工程硕士：周健工程硕士：周健 学 学 号：号：1070222046 上海交通大学机械与动力工程学院上海交通大学机械与动力工程学院 2009 年年 5 月月 A Dissertatio
2、n Submitted to Shanghai Jiao Tong University for Master Degree of Engineering Simulation of High-Pressure Common Rail Fuel Injection System of Diesel Engine Electronic Control and Study of Low Exhaust Emission Technology Author： Zhou Jian Specialty: Power Engineering Advisor: Associate Prof. Zhou Xi
3、aoping Advisor: Prof.Shen Jie School of Mechanical Engineering Shanghai Jiao Tong University May, 2009 I 柴油机电控高压共轨燃油喷射系统仿真与低排放技术研究柴油机电控高压共轨燃油喷射系统仿真与低排放技术研究 摘摘 要要 中华人民共和国国家标准 车用压燃式、气体燃料点燃式发动机与汽车排气污染物排放限值及测量方法（中国、阶段） 、 轻型汽车污染物排放限值及测量方法（中国、阶段） 的颁布，以及2007年开始实施第阶段以来，苛刻的排放法规促进了柴油机电控技术的发展。柴油机电控高压共轨燃油系统作为一种
4、高柔性的燃油系统，其卓越的综合性能为柴油机的性能优化提供了巨大的自由空间，代表了柴油机燃油系统的发展趋势。 在阅读了大量的文献和对玉柴FBK柴油机国排放技术研究并顺利达标法规要求的基础上，本文介绍了高压共轨燃油喷射系统的特点、优点及发展状况。详细介绍了BOSCH CRSZ高压共轨系统的结构、工作原理及应用。 本文以HYDSIM为仿真工具，建立了高压共轨系统模型。通过试验，验证了系统模型并利用模型开展了以下仿真研究及应用开发工作： 1.以BOSCH CRIX喷油器为原型，研究了其关键结构参数对喷油过程喷油规律的影响，探讨了各关键结构参数的设计原则。 2.通过仿真与试验实践相结合的方法实现了降低试
5、验次数，提高开发效率的效果。 3.应用系统模型成功开发了匹配高压共轨系统达标国排放水平的玉柴FBK柴油机，提炼了乘用（轻型）车低排放控制技术研究的方法。 关键词：关键词：柴油机，高压共轨，燃油喷射系统，仿真，喷油规律，HYDSIM， 轻型车II Simulation of High-Pressure Common Rail Fuel Injection System of Diesel Engine Electronic Control and Study of Low Exhaust Emission Technology ABSTRACT Since the standard of the
6、 Peoples Republic of China that those are “Limits and measurement methods for exhaust pollutants from compression ignition and gas fuelled positive ignition engines of vehicles（, , ）”and “Limits and measurement methods for emissions from light-duty vehicles(, ) ”was published, the National standard
7、was enforced in 2007, the severe statute of exhaust emission has made the technology of diesel engine electronic control develop. The system of high-pressure common fail fuel was a kind of high flexible fuel system, its prominent and integrated performance has offered gigantic free space for Diesels
8、 optimization.It also represented the direction of diesels fuel system. This paper was based on reading lots of literatures and researching exhaust emission technology of National standard for YuChai FBK diesel engine, and it reached the national statute. And then this paper introduces the features
9、and advantages as well as development of the system of high-pressure common rail fuel injection. However, this paper introduces the BOSCH CRSZ, it components the structures, principles of high-pressure common rail and how they work here at present in detail. In this paper, the models of the common r
10、ail fuel system are created according to HYDSIM .The models are validated that they have the results by test .The main work is following: 1. BOSCH CRIX injector is used as the prototype, the affects of key construction parameters on its injection rate of spray process are investigated and the determ
11、ination of each key construction parameter is also discussed. 2. The way which simulation and the test practice are well integrated achieves to decrease the times of tests and increase the efficiency of development. 3. Using the modes of simulation system can not only develop successfully but match
12、III YuChai FBK engine which has the systems of high-pressure common rail fuel injection to reach emission level of National standard. In this way, it can also refine investigated method of low exhaust emission technology of light-duty vehicles. Key Words: Diesel Engine, High-Pressure Common Rail, Fuel Injection System, Simulation, Injection Rate, HYDSIM, Light-duty Vehicel IV 目录目录 第一章第一章 绪论绪论 . 1 1.1 引言 . 1 1.2 国内外柴油机及燃油系统发展现状.2 1.2.1 国内外柴油机发展现状.2 1.2.2 国内外电控燃油系统发展现状.7 1.3 本文的研究内容.13 第二章第二章 高压共轨系统的发展及原理高压共轨系统的发展及原理 .14 2.1 高压共轨系统的现状.14 2.1.1 电控燃油系统发展的三个阶段.
