帕萨特1.8T电控发动机故障诊断与检修-毕业论文.docx

帕萨特 电控发动机故障诊断与检修摘要: 电子技术的飞速发展和汽车相关法规的建立,促进了汽车控制技术的形成与发展,作为汽车重要组成部分的发动机已进入了电子控制化的时代。汽车发动机电控技术在给发动机带来了控制精确性、系统的稳定性、燃油消耗的经济性和排放的环保性等优点的同时,也给发动机故障检测诊断带来了困难。本文就是针对这一问题深入研究了帕萨特 电控发动机故障诊断与检修。本文阐述了帕萨特 电控发动机控制系统的基本组成和工作原理,分析了帕萨特 电控发动机电子控制系统出现故障以后,如何利用人工和各种仪器对其进行检测诊断。重点研究了帕萨特 电控发动机各种常见故障(发动机不能起动、发动机起动困难、怠速不良、加速不良、点火不正常) 的故障现象、故障原因、故障的诊断排除方法。关键词: 帕萨特 电控发动机故障诊断 Title : Passat Telectronic-controlled engine fault diagnosis and maintenance Abstract : The rapid development ofelectronic technology and the establishment ofthe relevant laws and regulations, promote the formation and development ofthe auto control technology, asanimportant part of automobile engine has entered the era ofelectronic control. Automobile engine electronic control technology inbrought engine control accuracy and the stability ofthe system, the consumption offuel economy and emissions ofthe advantages ofthe environmental protection atthe same time, also brought difficult todiagnosis ofengine fault detection. This article isaimed atthis problem deeply studied the passat T electronic-controlled engine fault diagnosis and maintenance. This article expounds the passat Tofelectronically controlled engine control system position and working principle, analyses the passat Telectronic-controlled engine electronic control system after afailure, how tomake use ofartificial and all kinds ofinstrument todetect the diagnosis. Passat Telectronic control engine ismainly studied mon faults (engine not starting, engine starting difficulty, idle speed, acceleration, the ignition abnormal) the failure phenomenon, failure reason and fault diagnosis method. Key words :Passat electronic controlled engine fault diagnosis 目录 Word 找不到您目录中的任何项。在您的文档中, 请选择要包括在目录中的单词, 然后在“主页”选项卡的“样式”下, 单击一个标题样式。对要包括的每个标题重复此步骤, 然后在您的文档中插入目录。若要手动创建目录, 请在“文档元素”选项卡的“目录”下,指向一个样式,然后单击向下箭头按钮。在“手动目录”下单击一个样式,然后手动键入条目。帕萨特 电控发动机故障诊断与检修第一章绪论 电控发动机发展趋势随着排放法规的不断严格和电子技术的迅速发展,汽油机电控技术取得了显著的进步, 作为一种新技术已在汽车工