TSC0505G最新Word档.docx

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1、TOYOTAENGINEERINGSTANDARDNO.:TSC0505GTIT1E:BenChtestmethodforradiointerferenceSUPPreSSiOnPerfOrmanCeOfautomotivee1ectricande1ectronicPartSC1ASS:C1Estab1ished:/Revised:Rev.4(Jan.2023)Thisstandardhasbeenrevisedasaresu1tofchangesinthemeasurementconditionsforDAB/DTVbandSection4.2.4(1),(2),Tab1e5,Tab1e7,

2、Tab1e8.PreparedandWrittenby:E1ectronicPerformanceDeve1opmentStEngineeringDept.E1ectronicsContro1SystemDeve1opmentDiv.DesignQua1ityInnovationDept.TOYOTAMOTORCORPORATIONBenehtestmethodforradiointerferenceSUPPreSSiOnPerfOrmanCeOfaUtOmotiVee1ectricande1ectronicPartS1. ScopeThisstandardcoversthebenchtest

3、methodconcerningradiointerferenceofautomotivee1ectricande1ectronicparts(suchascomputers,motors,andactuators):2.DefinitionsTermsusedinthisstandardaredefinedasfo11ows.(1) RadiointerferencesThistermreferstodisturbancesinsoundandimagebroadcastingsigna1sreceivedbyradios,TVsetsandsoon,andinoperationsofe1e

4、ctricwaveoperateddeviceduetohighfrequencynoisesemittedfromautomotivee1ectricande1ectronicpartsmountedonvehic1es.(2) Vehic1emountedreceiverThistermreferstoradioreceiversandradiotransmitter-receivers.Radios(AMandFM),DTV(Digita1TV),SDARS,DAB(Digita1AudioBroadcast),SMART,RKE(RemoteKey1essEntry),TPMS(Tir

5、ePressureMonitoringSystemi),wire1essdevices,TE1,GPS,B1uetooth,VICS,andsoonareregardedasthosedevices.(3) Automotivee1ectricande1ectronicpartsAutomotivee1ectricande1ectronicpartsrefertothedeviceswhichcontro1systemsbymain1yusingsemiconductorsandthevariousdetectiondevices(sensors)andoutputunits(motorsan

6、dactuators)whichareusedinconjunctionwiththem,orthedeviceswhichcontainoneormoresuchdevices.(4) SpecimenSpecimenmeansthedevicetobetested.Itconsistsofautomotivee1ectricande1ectronicparts.(5) ConductedemissionThisterminthisstandardreferstothee1ectromagneticenergyconductedtoharnessesofavehic1efromnoisege

7、neratingsources.(6) RadiatedemissionThisterminthisstandardreferstothee1ectromagneticenergyradiatedintothespacefromthenoisegeneratingsourceunits.(7) WidebandnoiseThistermreferstothecontinuousnoisewhichhasthewiderfrequencyspectrumthanthemeasurementbandwidth.(8) NarrowbandnoiseThistermreferstothecontin

8、uousnoisewhichhasthenarrowerfrequencyspectrumthanthemeasurementbandwidth.(9) ConversionimpedanceThistermreferstotheimpedanceofthecurrentprobe.Theunitofmeasurementsha11be(dB).Thee1ectriccurrent(dBA)canbeinducedfromthemeasuremente1ectricvo1tage(dBV)ofthespectrumana1yzerwhichismeasuredbyusingthecurrent

9、probe,byusingtheformu1abe1ow.E1ectriccurrent(dBA)=Measuremente1ectricvo1tage(dBV)-Conversionimpedance(dB)+Cab1e1oss(dB)-Va1ueofamp1ifiedproportionbyRF(RadioFrequency)preamp1ifier(dB)(W)AntennafactorThistermreferstothesensitivityfactoroftheantennaanddesignates,inthisstandard,thecorrectioncoefficiento

10、ftheantennainductionvo1tage(50)correspondingtothee1ectricfie1dstrength.Theunitofmeasurementsha11be(dB)or(dBm).Thee1ectricfie1d(dBVm)canbeinducedfromthemeasuremente1ectricvo1tage(dBV)ofthespectrumana1yzer,whichisreceivedbytheantenna,byusingtheformu1abe1ow.E1ectricfie1d(dBm)=Measuremente1ectricvo1tage

11、(dBV)+Antennafactor(dBordBm)Cab1e1oss(dB)-Va1ueofamp1ifiedproportionbyRFpreamp1ifier(dB)(11)PeakdetectionThistermreferstothedetectionmethodtooutputthevo1tagewaveheightofthemeasuringsigna1.(12) AveragedetectionThistermreferstothedetectionmethodtooutputtheaveragevo1tageoftheenve1opofmeasuringsigna1s.I

12、nthecasewherethemeasuringdeviceuseddoesnothavethecapabi1itytooutputtheaveragevo1tage,thedetectingmethodtooutputtheaverageoftheeffectiveva1uesmaybeused.(13) Maxho1dThistermreferstoameasurementmodeinthespectrumana1yzermeasurementdesignedtoperformmu1tip1esweepsandse1ectthemaximumva1ueofthemu1tip1esweep

13、data.(14) TraceaverageThistermreferstoameasurementmodeinthespectrumana1yzermeasurementdesignedtoperformmu1tip1esweepsandaverageprocessingtothemu1tip1esweepdata.(15)Mu1tip1ebandsmeasurementThistermreferstothecomprehensivemeasurementofanumberoffrequenciessuchastheFMbandtheDABband.(16) Groundp1aneThist

14、ermreferstoconductivemeta1p1ateswhichareinsta11edbeneathspecimens,1oads,simu1ators,andbatteries,Thisisusedasthereferencepotentia1tosimu1ateavehic1ebody.Itismadeofcopper,brassora1uminummeta1p1ate,whosethicknessis0.5mmandmoreandareais1000X2000mmandmore.Itisensuredthatithasthee1ectrica1continuitywithth

15、ee1ectromagneticshiedwa11oftheanechoicchamber.(17) BackgroundnoiseThistermreferstotheexterna1noiseswhicharegeneratedandpropagatedbyotherthanthespecimensandinc1udenoisesgeneratedbymeasurementdevices,broadcastingwavesandsimu1ators.(18) Shie1dchamberThistermreferstothechamberconsistingofe1ectromagnetic

16、shie1dwa11s.(19) Anechoicchamber(A1SE)Thistermreferstothedarkroomwhichiscomposedofe1ectromagneticshie1dsande1ectricwaveabsorbers.A1SEisanabbreviationOfAbsorber1inedShie1dedEnc1osure.(20) StandardconditionThestandardconditionmeansthenorma1conditionofthetestsiteandsha11bethenorma1temperature(from5to35)andthenorma1airpressure(from86to106kPa)un1essotherwiseprovided.(21) St