电喷技术在ATV上的应用分析

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1、ABSTRACTALLTerrainVehiclebecamemoreandmoreimportantandusefulinthefieldsofentertainment，agricultureandfireprotection,etc．TheexportofATVinChinahasraisedyearly．Manymotormanufacturersbeganthecorrespondingnewproductsdesignandresearch．However,traditionalcarburetor．fueledATVenginescouldnotmeettherequireme

2、ntsofhi．ghpower，lowfuelconsumptionandlessemissionspollution．AnditiSwellknownthattheelectroniccontrolledfuelinjectionsystemiSthebestwaytosatisfythecomprehensiverequirementsofgasolineengines．Inthispaper,basedontheLX700ATV(usingCVT700engine)madeinChongqingLoncinIndustry，DelphiMT705electronicinjections

3、ystemWaschosen．11beresearchtargetsaretOmakevehicle’SexhaustemissionsfulfillChinesestageIIIemissionsregulationofmotorcycleswithgoodpoweroutputandfueleconomy．Themainresearchworksageasfollow：(1)AnalysisofexhaustemissionscontrolsolutionsinthefieldsofdomesticandforeignATVapplication,andthesituation,impo

4、rtanceandinevitabilityofrelatedelectronicinjectionsystemapplicationofATV．(2)Fundamentalanalysisoftheelectronicinjectionsystemandthekeyfactorsimpactingengineperformances．DesignofATvelectronicinjectionsystem，andchoiceandcalibrationofsystemkeypartswerecarriedout．neATVprototypewithelectronicinjectionsy

5、stemhasdevelopedalsointheresearch．(3)Controlstrategiesanalysis，ECUfunctiondefinition,andtypicalinjection,andignitionalgorithmsoftheelectronicinjectionsystemhavebeenintroducedbasedonLX700ATVinthispaper．(4)Calibrationmethods，testingsystemandevaluationstandardshavesetupintheresearch．Theoptimizedair-ch

6、argingefficiency，injectionandignitionMAPatdifferentrunningmodes，such觞enginecrankingandidling，accelerationanddeceleration,etewereachievedbyenginebenchtestingandvehiclechassistesting．Reliabilityandadaptiveabilityoftheelectronicinjectionsystemcouldalsobevalidatedbyroadtestingandenvironmentcalibrations

7、．ThisprojectcamefromapplicationresearchoflargevolumeATvwithelectronicinjectionsysteminLoncinIndustry．Aftermorethantwoyearsdevelopment,theATVprototypereachedthedesiredtargets．Testingdatashowedthattheexhauste