82011241徐立明-电控高压共轨柴油机控制原理与故障诊断.docx

编号淮安信息职业技术学院毕业论文题目电控高压共轨柴油机控制原理与故障诊断学生姓名徐立明学号82011241院系汽车工程系专业汽车检测与维修技术班级820112指导教师汪东明副教授顾问教师二〇一三年十一月摘要摘要为了满足日趋严格的排放法规和进一步提高柴油机的经济性和动力性的要求，电控高压共轨技术在这种背景下孕育而生。电控高压共轨柴油机作为节能环保发动机，在节能与环保意识日益增强的今天，已成为车用发动机的一种必然选型。其喷油控制与故障监控策略的研究，对提高燃油喷射控制精度、实现节能减排目标、提高发动机运行稳定性与可靠性以及优化发动机整体性能具有重要的现实意义。本文主要介绍了国外、内电控高压共轨柴油机的发展，详细分析了高压共轨的组成及工作原理，重点介绍电控高压共轨系统的故障诊断和它的检修具体步骤，最后列举了哈弗、锡柴等汽车上经常出现的故障进行了分析了解。关键词：高压共轨；电控柴油机；控制原理；故障诊断IIAbstractAbstractTomeettheincreasinglystringentdieselemissionregulationsandtofurtherimprovetheeconomyandpoweroftherequirements,electronicallycontrolledhighpressurecommonrailtechnologyinthiscontextbred.Electronicallycontrolledhighpressurecommonraildieselengineasanenergy-savingenvironmentalprotection,energysavingandenvironmentalprotectioninthegrowingawarenessoftoday,hasbecomeaninevitablevehicleengineselection.Itsinjectioncontrolandfaultmonitoringpolicyresearch,toimprovethefuelinjectioncontrolprecision,toachieveenergyreductiontargets,improvestabilityandreliabilityoftheengineisrunningandoptimizingtheoverallperformanceoftheenginehasimportantpracticalsignificance.Thispaperdescribestheforeigncountries,electronicallycontrolledhighpressurecommonraildieselenginewithinthedevelopmentofadetailedanalysisofthecompositionandworkofhighpressurecommonrailprinciplefocusesonelectronicallycontrolledhighpressurecommonrailsystemfaultdiagnosisandrepairitsconcretesteps,thelastcitedHavel,Xichaiothercarsoftenfailureswereanalyzedtounderstand.Keywords:Highpressurecommonrail;electronicallycontrolleddieselengine;controlprinciple;faultdiagnosisII目录目录摘要IAbstractII第一章绪论11.1电控柴油机发展11.2电控高压共轨柴油机的发展31.2.1国外高压共轨柴油机的发展41.2.2国内高压共轨柴油机的发展51.3电