编号淮安信息职业技术学院毕业论文题目电控动力转向系统的故障诊断、检修及维护学生姓名窦李伟学号82011249院系汽车工程系专业汽车检测与维修技术班级820112指导教师刘大诚讲师顾问教师二〇一三年十一月摘要电控动力转向系统的基本功能是根据各传感器的信号判断驾驶意愿和车辆状态信息，借助于液压系统的液体压力或电动机驱动力来对车轮的转向实现不同程度的助力。如果维护保养不当，将导致汽车转向不能正常工作，所以弄清电控动力转向系统常见故障的成因及排除方法是很重要的。本文简单概述了电控动力转向系统的结构及功用，重点介绍了电控液压动力转向系统的结构和相关元件的工作原理，详细分析了电控液压动力转向系统日常维护的内容及零件的检修，最后结合具体的故障案例分析了电控动力转向系统故障的诊断与排除。关键词：电控动力转向；电控液压动力转向；使用维护；故障诊断AbstractPowersteeringsystemofthecomponentsofacomprehensiveanalysis,anditsbasicfunctionisdeterminedbasedonthesensorsignalandthevehicledrivingstateinformationwill,bymeansofthefluidpressureinthehydraulicsystemoramotordriveforcetotherealizationofasteeringwheeldifferentlevelsofpower.Ifimpropermaintenancewillresultinsteeringnotworkingproperly,sofindoutelectronicallycontrolledpowersteeringsystemandtroubleshootingcommoncauseofafailureisveryimportant.Thispaperbrieflyoutlinestheelectronicallycontrolledpowersteeringsystemstructureandfunction,focusingontheelectro-hydraulicpowersteeringsystemstructureandrelatedcomponentsoftheoperatingprinciple,adetailedanalysisoftheelectro-hydraulicpowersteeringsystemsandpartscontentofroutinemaintenanceoverhaul,Finally,casestudiesofspecificfaultelectronicallycontrolledpowersteeringsystemtroubleshooting.Keywords:Electronicallycontrolledpowersteering;electro-hydraulicpowersteering;usemaintenance;troubleshooting目录摘要..............................................................................................................................IABSTRACT..................................................................................................................II第一章转向系统的发展...............................................................................................11.1转向系统的发展历程............................................................................................11.2转向系统的类型及特点........................................................................................1第二章电控动力转向系统的简要概述.....................................................................42.1电控动力转向系统的作用....................................................................................42.2电控动力转向系统的类型及其工作原理............................................................42.2.1电控电动式动力转向系统组成及其工作原理.............................................42.2.2电控液压动力转向系统的类型及其工作原理.............................................5第三章电控动力转向系统的故障诊断与检修.........................................................93.1电动动力转向系统电控元件的原理与故障检修................................................93.2液压动力转向系统故障的主要现象及检修......................................................123.3液压动力转向系主要元件的故障检修..............................................................143.3.1动力转向油泵的结构与检修.......................................................................143.3.2动力转向器的结构与检修..................................................................
