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天津职业技术师范大学TianjinUniversityofTechnologyandEducation毕业设计专业：汽车维修工程教育班级学号：汽修0911-17学生姓名：张璐指导教师：温立志高级实验师二〇一四年六月天津职业技术师范大学本科生毕业设计LS400电控悬架实验台的设计DesignofLS400electroniccontrolsuspensiontestbench专业班级：汽修0911学生姓名：张璐指导教师：温立志高级讲师学院：汽车与交通学院2014年6月摘要随着人们对汽车驾驶的操纵性和乘客乘坐舒适性要求越来越高，以及电子技术的日渐成熟，现代汽车悬架系统也将其技术大量应用于其中，使悬架不同的路面和行驶状态作出不同反应是电子控制悬架系统的最大优点。乘坐舒适性达到令人满意的状态是人们对现代汽车的基本要求，而对于驾驶者来说，汽车的操纵稳定性则显得尤为重要。丰田凌志lS400的电控悬架系统采用的是目前最先进的主动式空气弹簧悬架，在不同的行驶状况下(路况)自动控制弹簧刚度、减振器阻尼力和车高，以达到抑制加速时后坐、制动时点头、转向时侧倾等汽车行驶状态的实时变化，从车身的稳定性能方面来改善乘坐的舒适性和驾驶者的操纵的稳定性。现代汽车教育行业发展迅猛，传统的修理厂师徒制的教授已经不能满足我国目前汽车修理行业的发展，汽车悬架实验台的设计已经迫在眉睫，为配合汽车维修教育、培训以及研究需求所设计了本次的实验台架，对凌志LS400电控悬架的工作原理，传感器、执行器的故障分析给出直观的表现，不论对于初次学习汽车悬架的在校学生还是有经验维修企业员工都有非常直接有效的帮助，实验台结构合理并尽可能的考虑汽车教学实际要求，主要由悬架系统等实物组成，并配置了多功能控制柜/显示柜，目的是为了适应教学要求。凌志LS400电控悬架系统的结构组成在设计说明书进行了最为基本的讲解，对LS400电控悬架系统的基本控制原理进行了逐一分析，凌志LS400电控悬架系统实验台的总体设计方案是此设计说明书的最主要也是最核心的内容。计划方案包罗实验台台架的设计，实验台面板的设计、实验台面板控制图的设计、故障点的设计等。最后，还对实验台的使用和操作过程做了介绍。关键词：凌志LS400电控悬架实验台架空气弹簧主动悬架ABSTRACTAlongwiththepeopletothevehicle'shandlingandridingcomfortabilityrequirementsmoreandmorehigh,andelectronictechnology,themodernautomobilesuspensionsystemwillalsobethetechnologyhasbeenappliedtothesuspension,thedifferentroadanddrivingconditionsmakedifferentreactionisthebiggestadvantageofelectroniccontrolsuspensionsystem.Theridecomfortofasatisfactorystateisoneofthebasicrequirementsformoderncar,thedriver,thevehiclehandlingstabilityisthemostimportant.Electroniccontrolle.ElectroniccontrolledsuspensionsystemToyotaLexuslS400isactiveairspringsuspensioniscurrentlythemostadvanced,indifferentdrivingconditions(LuKuang)springstiffness,dampingforceandhighautomaticcontrol,toachievethereal-timechangeofacceleration,brakingrecoilsuppressionnod,steeringrollofthedrivingstateofthevehiclehandlingandstability,fromtheaspectsofthebodystabilitytoimproveridecomfortanddriver.Themodernautomobileeducationindustryisdevelopingrapidly,thetraditionalrepairfactorymentoringprofessorhasbeenunabletomeetthedevelopmentofourcountry'scurrentautorepairindustry,designofautomotivesuspensiontestrighasbeenimminent,withautorepaireducation,trainingandresearchneedsofthedesignoftheexperimentalplatformforthistime,theworkprincipleofLexusLS400controlsuspensionanalysis,givesanintuitivedisplayfaultsensor,execution,regardlessoftheinitialstudyofautomobilesuspensionstudentsorstaffexperiencerepairenterprisesareverydirectandeffectivehelp,experimenttablestructureisreasonableandpossiblegiventhecarthepracticalrequirementsofteaching,mainlybythesuspensionsystemandotherphysicalcomposition,andtheconfigurationofthemultifunctioncontrolcabinet/displaycabinet,thepurposeistoadapttotherequirementsofteaching.ThestructureofLS400electroniccontrolsuspensionsystemLexuscompositionindesignspecificationisthemostbasicexplanation,thebasiccontrolprincipleofLS400electroniccontrolsuspensionsystemareanalyzedonebyone,theoveralldesignschemeoftheLexusLS400electroniccontrolsuspensionsystemexperimentplatformisthedesignspecificationofthemainandthemostcorecontent.Designincludesthedesignoftheexperimentalbench,benchpaneldesign,experimentalplatformpanelcontrolchartdesign,faultpointdesignetc..Finally,theexperimentalplatformfortheuseandoperationprocessarediscussed.KeyWords：TheLexusLS400；electroniccontrolsuspension；testbench；ofairspringsuspensionI目录1绪论...............................................................................................................................11.1国内外的发展现状及发展趋势........................................................................11.2设计制作的目的和任务....................................................................................11.3设计制作的主要工作........................................................................................22凌志LS400电控悬架系统的结构与工作原理..........................................................32.1电控悬架的基本组成........................................................................................32.2控制原理............................................................................................................42.2.1车身高度控制.........................................................................................42.2.2弹簧刚度和减振阻尼力控制.................................................................92.3系统电路图........................................................................................................93电控悬架系统实验台的总体设计方案.....................................................................103.1实验台架的设计.............................................................................................103.2实验台动力源和负载的选择.........................................................................113.2.1实验台动力源的选择..........................................................................113.2.2如何选取实验台的负载......................................................................114实验台的面板设计....................................................................................................114.1主显示面板的总体布置...................................................................................114.2实验台面板电路图的设计............................................................