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毕业论文课题名称：本田雅阁怠速故障诊断与检修设计时间：系部：班级：1002汽车检测与维修姓名：指导教师：2016届毕业设计(论文)任务书系（部）：机械与汽车工程学院专业：汽车检测与维修班级1002汽车维修学生姓名指导教师学位硕士课题名称本田雅阁怠速故障诊断与检修课题工作内容根据课题要求，论文以汽车理论知识为出发点，对本田雅阁发动机怠速类故障进行原因分析，阐述发动机怠速不稳的诊断维修方法，并结合本田雅阁怠速故障的实例，对其进行分析、诊断、维修及排除故障的论述。同时我还通过校内外本田发动机的拆装维修实习，了解了本田发动机的常见故障及其故障诊断方法。拟写论文主要工作过程如下：1．由毕业论文指导老师讲解关于论文的写作要求、注意事项。2．根据论文写作要求、拟定论文题目。3．到图书馆、上网查阅相关资料，了解本田发动机的结构和发动机怠速的工作过程及其简单的故障诊断与维修方法。4．着手开始写论文开题报告和任务书，交给老师批改、进行指导。5．经论文指导老师批改后，确定下一步的工作，进行论文初稿的的拟写。6．论文初稿完成后交给指导老师进行初期修改，根据课题内容进行审核。7．审核通过后，继续完善论文。8．将论文交给指导老师进行中期的修改与审核，提出论文的不足之处。9．然后修改论文中的不足之处，进一步完善论文。最后，进行论文定稿。10．最后做好相关准备，进行论文答辩。指标要求1．通过本文能够帮助读者了解本田轿车发动机结构、原理及其怠速工作过程中常见故障及其诊断方法。2．通过本文希望能够给读者在实践运用当中具有实践指导意义。论文书写要求：1．字数要求为15000字左右。2．毕业论文说明书按学院规定的撰写格式、要求和纸张格式装订成册，内容顺序为：封面、中英文摘要、目录、论文正文、参考书目录、致谢、附表。3．论文说明书的论证要有科学根据，要有说服力；计算部分须指出公式来源并说明公式中的符号所代表的意义，公式中所有常数或系数必须正确，计算结果要足够准确，计算中采用的数据及计算结果可列表表示。4．说明书要求章节分明，层次清楚，文理通顺，图表、简图规范、清晰。进程安排1.根据毕业课题任务，收集、阅读整理有关资料；1周2.拟订并确定设计方案；1周3.依据设计方案完成论文初稿；5周4.修改、定稿、打印；1周5.编写说明书，整理并完成毕业（设计）论文，制作答辩幻灯片；2周6.毕业（设计）论文审阅、评阅、答辩。主要参考文献1.张凤山静永臣，雅阁轿车快速精修手册，2010.2.赵英勋麻友良，本田雅阁系列轿车故障速查手册，2005.3.祁栋玉.汽车发动机电脑控制系统故障与维修,2011.4.李春明.汽车发动机燃油喷射技术.北京理工大学出版社，2007.5.吕彩琴.汽车发动机电控技术，2009.6.许正文.本田雅阁维修手册,广东科技出版社，2006.7.常本权.本田雅阁维修手册,广东科技出版社,20068.李涵武.汽车电器与电子技术.哈尔滨工业大学出版社，2005.起止日期2015年11月13日——2016年5月13日系(部)盖章：教研室主任(签字)：年月日年月日说明：毕业设计任务书根据课题的具体情况填写，经教研室主任签字及系部审核盖章后生效。此任务书要求按固定格式双面打印,在毕业设计工作开始前一周内填写并发给学摘要怠速控制系统的好坏与节能减排有很大关系，因此研究怠速系统对节能减排有很重大的意义。本课题以广州本田雅阁怠速控制系统为研究中心，以汽车理论知识为出发点，对本田雅阁发动机怠速类故障进行原因分析。将会分析广州本田雅阁怠速控制系统，主要内容包括怠速的由来，本田雅阁怠速控制系统的组成及其工作原理、各子系统的组成及其功用。并阐述发动机怠速不稳的诊断维修方法，并结合本田雅阁轿车型怠速故障的实例，对其进行分析、诊断、维修及排除故障的论述。关键词：怠速；故障；组成；功用；维修AbstractIdlespeedcontrolsystemisgoodorbadhasalottodowiththeenergyconservationandemissionreduction,sothestudyofidlespeedsystemforenergyconservationandemissionsreductionhasaveryimportantsignificance.ThistopictoguangzhouHondaaccordidlespeedcontrolsystemastheresearchcenter,automobiletheoryasthestartingpoint,theHondaaccordengineidlespeedkindoffaultreasonanalysis.WillanalysisguangzhouHondaaccordidlespeedcontrolsystem,themaincontentincludingtheoriginoftheidle,Hondaaccordidlespeedcontrolsystemcompositionandworkingprinciple,thecompositionofeachsubsystemanditsfunction.Andthisengineidlespeedinstabilitydiagnosismaintenancemethod,andcombiningwithHondaaccordcartypeidlespeedfaultexample,carryontheanalysis,diagnosis,maintenanceanddebuggingdiscussed.Keywords:Idle;Fault;Composition,Utility;Maintenance目录1.本田雅阁发动机结构与工作原理······························································11.1本田雅阁发动机结构原理··································································11.2本田雅阁发动机工作原理·······································错误!未定义书签。2.本田雅阁怠速控制原理简析·····································································32.1怠速控制系统的组成及功用······························································32.2怠速控制各组成系统的功用···································································42.3本田雅阁怠速控制原理·····································································53.本田雅阁怠速不稳的原因分析···································································53.1燃油喷射系统····················································································63.2点火系统···························································································63.3怠速控制系统····················································································63.4废气再循环（EGR）系统·····································································73.5燃油蒸气净化控制系统·······································································83.6传感器部分························································································93.7机械故障···························································································94.本田雅阁发动机怠速不稳故障诊断与维修方法········································104.1汽车故障诊断基本原则·····································································104.2怠速不稳诊断流程图········································································114.3怠速控制系统的检修········································································124.4怠速的调整······················································································145.本田雅阁发动机怠速不稳维修实例··························································155.1案例一EGR阀卡死导致机出现怠速抖动··········································155.2案例二火花塞工作不良导致怠速不稳，并伴随放炮现象·················155.3案例三怠速步进电机积炭过多，怠速游车······································16结论................................................................................................................................................17参考文献......................................................................................................................................18致谢................................................................................................................................................191.本田雅阁发动机结构与工作原理目前，国内外轿车都进入到了电控时代，所以发动机问题也愈来愈多，发动机怠速不稳是汽车使用中常见的故障之一,尽管现在大多数的轿车都有故障自诊断系统,但也会出现汽车有故障而自诊断系统却显示正常与故障无关的代码的情况,这通常是由不受电控单元(ECU)直接控制的执行装置发生故障或传统机械故障,本文主要是通过分析故障，把故障细分类别，并结合实例——广州本田雅阁怠速控制系统。然后对故障进行分析排除，来最终确定故障的原因，对其进行维修处