柴油机电控系统的发展论文终稿

1交通职业学院毕业论文论文题目：柴油机电控系统的发展所属系别车辆工程系专业班级汽车检测与维修技术姓名学号指导教师撰写日期年月2摘要与现代汽车汽油机电控技术的发展背景一样，面对无法回避的局部和全球性的环境和能源问题，现代汽车柴油发动机不得不采用和发展电子控制系统，以便保持汽车柴油发动机的可持续发展，更充分发挥柴油发动机固有的优点(低油耗和低CO2排放)。近年来柴油发动机电控系统的发展势头是令人瞩目的。柴油机共轨式电控燃油喷射技术是一项较为成功的控制污染排放的新技术。近年来，柴油机电控技术得到了快速发展和应用，大大促进了柴油机性能的提高。本文介绍了电控柴油机的结构和工作原理以及国外柴油机电控技术的发展情况和我国柴油机电控技术的研究现状，指出我国在柴油机电控技术发展过程中存在的问题，分析了今后柴油机电控技术的发展方向。关键词：柴油机，电控技术，发展3AbstractHyundaiMotorgasolineandelectriccontroltechnologybackground，likethefaceofunavoidablelocalandglobalenvironmentalandenergyissues，Hyundaihadtousedieselenginesandthedevelopmentofelectroniccontrolsystems，inordertomaintainthesustainabledevelopmentofautomotivedieselengines，givefullplaytotheinherentadvantagesofdieselengine(lowfuelconsumptionandlowCO2emissions).Inrecentyears，dieselenginecontrolsystemdevelopmentmomentumisremarkable.DieselCommonRailfuelinjectiontechnologyisamoresuccessfulcontrolofemissionsofnewtechnologies.Inrecentyears，dieselengineelectroniccontroltechnologyhasbeenrapiddevelopmentandapplication，contributedgreatlytotheimprovementofdieselengineperformance.ThisarticledescribesthestructureandelectroniccontroldieselengineworksandforeigndieselengineelectroniccontroltechnologyandthedevelopmentofelectroniccontroldieselenginetechnologyinChinaResearch，saidChina'selectroniccontroltechnologyindieselenginedevelopmentproblems，analysisofthefuturedieselengineelectroniccontroltechnologydevelopment.Keywords:dieselengineelectroniccontroltechnology4目录1前言...................................................................................................................12电控柴油机的概述............................................................................................12.1什么是电控柴油机..................................................................................12.2柴油电控技术的组成..............................................................................22.3柴油机电控系统的功能..........................................................................22.4柴油机电子控制技术的发展状况..........................................................33电控柴油机喷射系统的分类............................................................................33.1位置控制系统..........................................................................................33.2时间控制方式..........................................................................................43.3时间－压力控制方式..............................................................................43.4压力控制方式..........................................................................................44电子控制柴油机技术介绍................................................................................44.1单体泵技术..............................................................................................54.2泵喷嘴技术..............................................................................................54.3高压共轨技术..........................................................................................55现代轿车柴油机电控系统的新技术................................................................75.1时间控制的柴油电喷技术......................................................................75.2共轨式电喷系统......................................................................................75.3涡轮增压中冷技术..................................................................................75.4采用多气门技术......................................................................................75.5废气再循环技术......................................................................................76柴油发动机电控供油系统的技术要求............................................................86.1提高柴油发动机的经济性和降低排放..................................................86.2提高发动机工作的可靠性......................................................................86.3对柴油发动机运行工况进行实时高精度控制......................................86.4较强的适应性..........................................................................................86.5柴油发动机电子控制技术的特点..........................................................87柴油喷射系统的控制功能和发展....................................................................957.1柴油发动机电控系统的控制功能..........................................................97.2柴油发动机电控燃油喷射系统控制方式的发展..................................98柴油机电子控制技术的发展趋势..................................................................118.1高的喷射压力........................................................................................118.2独立的喷射压力控制............................................................................118.3改善柴油机燃油经济性........................................................................118.4独立的燃油喷射正时控制....................................................................118.5可变的预喷射控制能力........................................................................118.6最小油量的控制能力............................................................................118.7快速断油能力........................................................................................128.8降低驱动扭矩冲击载荷........................................................................129结论...............................................................