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1、dieselengineelectroniccontroltechnologydevelopmentElectronicallycontrolleddieselenginetechnologystartedinthe20thcentury,70s,80ssincethe20thcentury,theUnitedKingdomLucascompany,RobertBoschGmbHofGermany,Mercedes-BenzMotorCompany,AmericanGeneralDetroitDieselCorporation,Cummins
2、Inc.,CaterpillarInc.,Japan50LingMotorCo.andKomatsuLtd.arecompetingtodevelopnewproductsandmarkettomeettheincreasinglystringentemissionsregulations.Becausedieselengineshavehightorque,high-life,lowfuelconsumptionandlowemissionscharacteristicsofdieselenginevehiclesandsolvingthe
3、energyproblemofconstructionmachinerythemostrealisticandmostreliablemeans.Thereforetheuseofdieselengineshasbecomeanincreasinglywidespread,moreandmorequantity.Atthesametime,thepowerofdieselengineperformance,economicperformance,emissioncontrolandnoisepollutionarealsogettinghig
4、herandhigher.Torelyontraditionalmechanicalcontrolfuelinjectionsystemhasbeenunabletomeettheaboverequirements,butalsodifficulttoachievefuelinjectionquantity,injectionpressureandinjectiontimingfullyfunctioninginaccordancewiththebestworkingconditionrequirements.Inrecentyears,wi
5、thcomputertechnology,sensortechnologyandinformationtechnologyisdevelopingrapidly,sothatthereliabilityofelectronicproducts,cost,size,etc.toalldieselenginestomeettherequirementsforelectroniccontrolandelectronicallycontrolledfuelinjectioneasytoachieve.Infact,dieselexhaustCOand
6、HCthangasolineenginesmuchless,NOXemissionsandgasolineenginesimilarto,butmoreexhaustparticles,whichisrelatedtodieselenginecombustionmechanism.Dieselisanon-homogeneouscombustion,combustiblemixtureformedaveryshorttime,andcombustiblegasmixtureformationandcombustionprocessinterl
7、acedtogether.DieselFuelInjectionthroughtheanalysisofthelawtobe:theatomizationoffuelinjectedintothequalityofthegasflowinsidethecylinderandcombustionchambershape,etc.directlyaffecttheprogressofthecombustionprocess,aswellasthegenerationofharmfulemissions.Improveatomizationofdi
8、eselfuelinjectionpressureandtheeffectoftheuseofpre-injection,suchassub-jetcaneffec
