毕业论文41598.docVIP

河南机电高等专科学校 毕业设计说明书（论文） 本田雅阁汽车燃油喷射系统及其维修 系 部： 汽车工程系 专 业： 汽车制造与装配技术 班 级： 汽制082 学生姓名： 李 洋 学 号： 081601234 指导教师： 杜 潜 2011 年 5 月 15 日摘　要 汽车燃油喷射系统是汽车上的重要组成部分。众所周知，随着汽车数量的日益增多，在汽车发达国家都制定了相应的排放法规，以限制汽车排放污染物的数量，在能源危机的影响下，各国也制定了汽车燃油经济法规，在这一条件下，燃油喷射系统得到了完善和发展。电控燃油喷射系统的作用是根据发动机的负荷、转速、吸入空气量等的变化情况，准确计算燃油量，保证发动机在各种工况下混合气空燃比最佳。电控燃油喷射系统以其优越的性能成为现代汽车汽油机燃油供给系统的主流。因此对电控燃油喷射系统各元件的维修也越来越重要。它主要有三部分组成。进气系统、燃料供给系统、控制系统。对电控燃油喷射系统的维修也主要是对这三部分的维修。 关键词：电控喷射系统，发展，工作原理，组成，维修 ABSTRACT Automotive fuel injection system is an important part of the bus. As we all know, with the increasing number of cars, in automobile developed countries have established corresponding emission regulations, to limit the number of automobile discharge of pollutants, under the influence of the energy crisis, nations also established automotive fuel economic laws and regulations, in this condition, the fuel injection systems have been perfected and developed. The role of electronic-control fuel injection system is in accordance with the engine load, speed, air inhaled quantity of the change of the situation, accurately calculating fuel amount, assure the engine at various working conditions is the mixture of air-fuel ratio is the best. Electronic-control fuel injection system with its superior performance becomes the modern automobile engine fuel supplying system of the mainstream. Therefore for electronic-control fuel injection system each element of maintenance also more and more important. It is made up of three main parts. Air intake system, fuel supply system and control system. For electronic-control fuel injection system maintenance is also predominantly of these three parts of the maintenance. KEY WORDS：Electric control injection system, the development, working principle, components, maintenance 目　　录 第1章 电控燃油喷射系统的概述 1 1.1 汽油喷射系统的发展 1 1.2电控燃油喷射系统的优点 1.3电控燃油喷射系统的类型 第2章 电控燃油喷射系统的功能 6 2.1喷油正时控制 6 2.2喷油量控制 6 2.3燃油停供控制 2.4燃油