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1、AjWTheEngineeringSocietySURFACEForAdvancingMobilityE1.JC1.andSeaAirandSpace,VE11IU1.CINTERNATloNA1.RECOMMENDED400Commo11ea!Droe1ecdale,PA150560001PRACTlCESubmcedto(fecogrttnasanAmencanNxcnalStandardSAfJ903REV.MAY1999Issued1964-08Revised1999-05SupersedingJ903cNOV1973(R)PassengerCarWindshieldWiperSyst
2、emForewordThisDocumenthasalsochangedtocomplywiththenewSAETechnicalStandardsBoardFonnat.ReferenceswereaddedasSection2,DefinitionschangedtoSection3.Allothersectionnumbershavechangedaccordingly.1. ScopeThisSAERecommendPracticeestablishesforpassengercars,lighttrucks,andmultipurposevehicleswithGVWor45(X)
3、kg(100(X)Ib)orless:a. MinimUmPerfOmIanCestandardsforwindshieldwipersystems.b.TcstProCCdlIrcJithatCanbeCOndUClCdonuniformtestequipmentbycommerciallyavailablelaboratorfacilities.c. UniformterminologyofwindshieldWiPersystemcharacteristicsandphenomenaconsistentwiththosefoundinguidesfortheuseofengineerin
4、glayoutstudiestoevaluatesystemperfo11nance.d. Guidesforthedesignandlocationofcomponentsofthesystemsforfunction,servicingofthesystcm.ctc.ThetestPrOCedUreSandminimumperformancestandards,outlinedinthisdocutnent,arebasedonCurrenllyavailableengineeringdata.Itistheintentthatallportionsofthedocumcnlwillbep
5、eriodicallyreviewedandrevisedasadditionaldataregardingwindshieldwipingsystemperformancearedeveloped.2. References2.1 ApplicablePublicationsIhefollowingpublicationsformapartoftheSpeCifiCationtotheextentSpecifiedherein.Unlessotherwiseindicated,thelatestrevisionofSAEpublicationsshallapply.2.1.1 SAEPUB1
6、.ICATIONAvailablefromSAE.400CommonwealthDrive,Warrendale,PA15096-0001.SAEJ941MotorVehicleDriversEyc1.ocation2.1.2 ASTMPUB1.ICATIONSAvailablefromSTM.I(X)BarrHarborDrive.WestConshohocken,PA19428-2959.ASTMD5I8TestMethcxlforRubberDeteriorationSurfaceCoatingASTMDl171TestMethodforRubberDeteriorationSurfac
7、eOzoneCrackingOutdoorsorChamber(TriangularSpecimens)SrfTechniciSurriaxsBoardRutesProVithatThisreportspuUtshedbySAEtoadvancetfseftechnicalacdeng:rgsderees.TheisecfrxsreportisentrelyVoiUfflary.andtsap6cabyandSuSahityforaryparacuuse.inchingat/paeinfringementanngthereom.sthesorespccsbftydtfeuser.SAErv*w
8、$wchthwlfptJJIwmtvryMy*3fXitm*yb*t*ffrmd.rvnd,orc*d.SAErhnHyourwtinMcoTiTiMjandiUJQMbon*QUESTIONSREGARMHGTHISDOCUMENT:(724)7724512FAX(724)7764)243TOPtCEADOCUMENTORDER:(724)77X970FAX:(724)778790SaewebaddressMtP如MWaeagPriIMCdinU.S.A.CnpyrighiIWSrcidyofaunmotivcFnjinccDi.Inc.AllrightsIVMfrVed.2.2 Relat
9、edPublicationsThefollowingpublicationsarcprovidedforinformationpurposesonlyandarenotarequiredpartofthisdocument.2.2.1 SAEPUB1.ICATIONSAvailablefromSAE,4(X)CommonwealthDrive.Warrendale,PA15096-0001.SAEJ6801.ocationandOperationofInstrumentsandControlsinMotorTnickCabsSEJ687NomenclatureTruck.Bus.Trailer
10、3. Definitions3.1 WindshieldWiperSystemThewipersystemconsistsofalltheapparatusforcleaningtheexteriorsurfaceofwindshieldglazing,togetherwiththenecessarydevicesandcontrolstostartandstopoperation.3.2 WiperBlade-Adeviceforcleaningtheeffectivewiperpattern,prisingasuitablesuperstructure,andsupportingandco
11、ntrollingawiperbladeelement.3.3 WiperBladeElementTlieresilientmemberofthewiperbladethatcontactsthewindshieldglazingsurface.3.4 WiperAroi-Adevicetointerconnectthewiperbladeandtheoutputshaftofthewipermotorlinkageassembly.IlieWiPerarmhasthedualfunctionof:a. MaintainingtheWiperbladeintoitsdesiredpositio
12、nthroughout(hewipepatternb. Exertingaloadontothewiperbladesufficientfbri(sfunction3.5 1.inkage.AssemblyThemulti-componentmemberthatconnectstothewiperarm(三)(whereapplicable)totransmititsactionintoaccuratemotionfordrivingthewipera11n(三).3.6 WipcrControlValvcZSwitch一11emanuallyactuatedmechanismthatallo
13、wspassageOfpneumaticorelectricalsignaltothewiper11H)torforactivatingthewipersystemintoitsvariousoperatingornon-operatingndcs.3.7 WipedAreaI-hespecificareasonthewindshieldglazingsurfacewhichshallbecoveredbytheeffectivewiperpattern.Theseareasweredevelopedasbeingcompatiblewithviewingrequirementsnecessa
14、rytooperateapassengercar.lighttruck,orIniiliipiirposcvehicle.3.8 Eyellipse-Astatisticalrepresentationofthedriverseyelocationinamotorvehicle,asdefinedin4.1.5ofSEJ941(latestve,sion)regardingheadturn.ForthePUrPOSeofthisdocument,theheadturnconsiderationin4.1.5ofSAEJ941willnotbeused.Forindividual-typepas
15、sengercarseals,useA.2.2ofAppendixAofSAEJ941.3.9 EffectiveWipePattern-Thatportionofthewetwindshieldglazingsurfacewhichisclearedwhenthewiperbladetravelsthroughacyclewithsystemonhighestfrequency.MinimumWiPedreaisdefinedin4.1.1.3.10 Cycle-Acycleshallconsistofwiperblademovementduringsystemoperationfromoneextremeofthewiperpatterntotheotherextremeandreturn.3.11 TandemPatternI-hepatternproducedbythewiperbladesmovinginthesamedirectionacrossthewindshieldglazingsurfacesimultaneously.SeeFigureI.3.12 OpposedPattern-Thepatternproducedbythewiperbladesmovinginoppositedirectionsacrossth
