基于臺架試驗的重型柴油車輛排放測試技術研究.pdf

1、天津大學碩士學位論文基于臺架試驗的重型柴油車輛排放測試技術研究姓名：尹超申請學位級別：碩士專業(yè)：動力工程指導教師：堯命發(fā)；高俊華201112ABSTRACTHeavy—dutydieselvehicleisthemaintoolforgoodsexchangeandpublictransportationWithincreasingofeconomicactivities，developingofmunicipalconstructio

2、n，andexpandingofpublictransportationnetwork，theexistingnumberofheavydutydieselvehiclebecomesmuchbiggerCurrently，emissiontestforheavydutydieselvehiclecanbeimplementedbothonheavydutychassisdynamometerandenginetestbenchHowe

3、ver，emissiontestprescibedbylow，forheavy—dutydieselvehicle，canonlybecarriedoutonenginetestbenchInthisstudy，thefactors，whichinfluencetestresultsduringemissiontestonenginetestbenchforheavy。dutydieselvehicle，wereinvestigated

4、，includingcontrolparametersettingsoftestbenchcontrolsystemandsamplingparametersettingsofemissiontestsystemThisworkhelpedtoenhancethestandardizationandconsistencyoflawrequiredemissiontestThecomponentsandnumberofparticulat

5、ematter(PM)dischargedfromdieselenginewerestudiedThetestforPMcomponentscanhelptocontroltheemissionofPMThetestforPMnumberisrequiredbyEuroⅥemissionregulationsinthefutureInthisstudy，PMnumberemissiontestswerecarriedoutontwodi

6、eselengineswhichmeettheEuroIIIandEuroIVemissionregulations，respectivelySomecharacteristicsforPMnumberemissionwereobtained。Comparedwithpreviousregulations，EuroVIemissionregulationsforheavydutydieselvehiclehavechangedalotI

7、nthisstudy，themainchangesweredescribeddetailedlyFurthermore，adieselengine，whichmeetstheEuroⅥemissionregulations，wastestedoncurrentbenchtoinvestigatetherequirementsforultra10wemissionmeasurementOnBoardDiagnostic(OBD)syste

8、mwasrequiredforEuroⅣandlagerstagesInthisstudy，thegeneralrequirementsandtestmethodforOBDsystem，whichdefinedbyChina’Sregulations，wereintroduceddetailedlyInsummary，theemissionmeasurementtechnologiesforheavydutydieselvehicle