汽车动力系统振动和噪声分析

TurbochargerApplicationinChineseAutomotiveIndustry:PresentandFuture,Reporter:HanYu&GuoTao,Content目录,PartI:Emission&FuelEconomicStandardsPartII:TurbochargerSuppliersContinentalPartIII:SAICMOTORSGEandMGEseriesenginePartVI:Summary,Emission&FuelEconomicStandards,PartONE,ChinaFuelEconomicStandardsPassengercarfuelconsumptionis6.9L/100Kmin2015,5L/Kmin2020,4L/Kmin2025.,LimitvaluesaregivenrespectivelyaccordingtothedifferentKerbmassPassengercarfuelconsumptionlimits,EmissionStandardsNanjingArea,light-dutygasolinevehicles,dualfuelcarsandsinglegasfuelcarsshouldconformtotherequirementsoftheGB18352.3-2005inthefourthstageemissioncontrol.SinceJanuary1,2011.lightdieselvehiclesshouldconformtotherequirementsoftheGB18352.3-2005inthefourthstageemissioncontrol,heavydutydieselvehiclesshallcomplywiththefourthstageofGB17691-2005emissioncontrolrequirements.HeavygasolinevehiclesshouldconformtotherequirementsoftheGB14762-2008inthefourthstageemissioncontrol.,1.Gasolineengine:1)Theoilprice:Therecentinternationaloilpricesloweranddomesticoilpricesdonotdrop,soastolimitemissionsofengineandpromotetheFE.2)Taxfactors:Thehighertheemissionsofengine,themoretaxwillbecharged.2.Electricalvehicleandplug-inhybrid:1)Newenergyvehiclepurchasetaxshallbeexempted:TogetpermissiontosellwithintheterritoryofChinaelectricandqualifiedplug-inhybrid,vehiclepurchasetaxshallbeexempted.2)Subsidiestobuyelectriccars:Forexample,ifconsumersbuyapureelectricorplug-inhybridpassengercarin2016,thehighesttheycangetsubsidiesof55000yuan,ChineseGovernmentIncentivesforLowEmissionandHighFEVehicles,TurbochargerSuppliersContinental,PartTwo,1,2,3,4,5,Fullname:ContinentalCorporation,Address:Since1871withheadquartersinHanover,Germany,Phone:+4994179061302,E-mail:Simone.Geldhaeusercontinental-,CompanyHomepage:http:/www.continental-,KeyFiguresfortheDivisionsin2014Comparedwith2013,ContinentalProfile,ContinentalCorporation,foundedin1871,isamultinationalenterprisegroupwithahistoryof500years,anditisoneoftheworldsleadingautomotivesuppliers.Itsproductsincludebrakesystems,chassissystems,bodyelectronics,tiresandotherrubberproducts.Thecompanyaimstotheconsumertocreateasafe,comfortabledrivingexperience.,Companysmainproducts,ManyofContinentalbusinessunitstooccupytheleadingpositioninthemarket:brakecaliper,safetyelectronics,automobileinstrumentandfuelsupplysystemofglobalsalesofthefirst.Thecorporationistheworldsfourthlargesttiresupplier,butalsoEuropeslargestcarandlighttruck,wintertiresandcommercialtiresupplier.GroupundertheCondiTechistheglobalmarketleaderinautomotiveinteriorcoatingmaterialsandrailvehicleairspring.,ContinentalinChina,In1994,theContinentalandtheShanghaiautoindustry(Group)CorporationcreatedajointShanghaiautomobilebrakesystemCo.,Ltd.,markingthemainlandGroupofficiallyenteredtheChinesemarket.Overthepastdecade,themainlandgrouphasestablishedasuccessfulpartnershipinChina.In2006,theGermancontinentalGroupofficiallyacquiredMotorolaautomotiveelectronicsdivision,andinJanuary1,2007,completedthesuccessfultransferoftheTianjinfactoryofMotorolaautomotiveelectronicsdivision,andsetupthecompanyforthecontinentalAutomotiveSystems(Tianjin)Co.,ltd.In2009,theAsiangroupheadquartersandR&DcenterwasestablishedinShanghai.,SAICMOTORSGEandMGEseriesengine,PartThree,PerfaceThenewgenerationofMGEseries,SGEseriescylinderdirectinjectionengineandTSTSeries6speedand7speeddualclutchtransmission,thepowerassemblyisnamedasCUBE-TECH.ItwasjointlydevelopedbytheSaicMotorandGeneralMotorsCorporation.Afterfiveyearsofresearch,andfinallyinApril2014eight,successfullyreleased.,上汽荣威360,Engineparameters,maximumhorsepower：156psmaximumpower：115KWMaximumpowerspeed：5600rpmcylinder：4stroke：84.8mmHundredkilometersfuelconsumption：5.7L,Enginecharacteristic,Itcanbeseenfromthepicture,theenginehasafairlywidetorqueplatform235Nm/1600-2400rpm.Thepowercurveismoresmooth,themaximumpowerisrelativelylarge,reaching115Kw.,Majortechnology,Theengineusesalargenumberofaluminummaterial,soitcanreduceengineweight；TheengineisusedincylinderheadintegratedexhaustmanifoldTechnology.Thestartstagecanimprovethecombustionspeedofthewarmmachineandcatalyst,reducethecomplexityoftheexhaustsystem,reduceweightandreducecost.,Intermediatetypedirectinjectiontechnology,burningmorefully,moreenvironmentallyfriendly.Thetransmissionchainoftheintakemechanismadoptsthesilentchain,whichcaneffectivelyrestrainthenoiseoftheengine.,Turbocharger,ThesupplieroftheturbochargeristheShanghaiMhiTurbochargerCo.Ltd,andthecompanyisajointventurecompany.Thecompanyhasdomesticadvancedproductionequipmentandtestingequipment,withmanyprofessionalandtechnicalpersonnelandrealisticandinnovativemarketingelite,Wastegasturbineboostersystem,Theengineburninggasentersthepipeanddrivesthebladetorotate,therebycompressingtheairinordertoimprovetheenginescombustionefficiency.,Summary,PartFour,CUBE-TECHisthelatestachievementofnationalautomobileenterpriseindependentresearchanddevelopment,itisacollectionofmanyoftheworldsleadingtechnologyinthefieldofengine.Atthesametime,itisalsoexpectedtoprovetotheworldChinaautomobileindustrymalecoreambition.,Questions,(1)Whydoesturbochargerusewatercooling?Thekeypartoftheturbochargerisbearing.Thiskindofbearingiscalledfullfloatingbearing“.Therefore,itisveryimportanttoguaranteethelubrication.Iftheoilpressureislow,theoilsupplyisslowandthebearingwillbedamaged.Innormalenginestartisnotsuchafailure,butiftheengineoilandoilfilterforthefirsttimeafterthestart,itwillproduceaslowphenomenonofoilsupply,sothatthelackofoillubrication.Theoldturbocharger,onlytheoilcooling,inordertoensurethenormalcoolingoftheturbine,oftenneedtostopidlingformorethan3minutestoshutdowntheengine.GS5usesthelatestgenerationofBergWarnerwatercoo