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ID:33737612
大小:3.20 MB
页数:77页
时间:2019-02-28
《车载can总线网络通信性能与电磁干扰问题的分析》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、重庆大学硕士学位论文II英文摘要ABSTRACTElectroniccontrolunitsareconnectedtothevehiclecontrollerviaCANBusintheelectricvehicle.ThemotordrivesystemandtheDC/DCconverterarethemajorinterferencesourcesinsidethecar.Duetothebundledwiringharness,includingthecontrollinesofCANcontroller,theelectromagneti
2、cinterference(EMI)generatedbytheprementionedinterferencesourcecanimpacttheCAN-bustransmissionline.InordertostudytheimpactoftheinteriorEMIontheCAN-bus,itisnecessarytostudythecommunicationperformanceandEMIproblemsofCAN-busfirst.ThisthesissupportedbytheNationalNaturalScienceFounda
3、tionofChina,"EMCbasicresearch,theelectromagneticenvironmentanalysisandoptimizationinthehighvoltagesystemsofelectricvehicle"(No51177183),studiesonthecommunicationperformanceandproblemsrelatedtoelectromagneticinterferenceofin-vehicleCANBus,themainresearchcontentsareasfollowing:①G
4、iveabriefintroductionandanalysisofbasicnormsofCAN-bus,includinglayeredstructure、messagetypeandcommunicationmechanismetc.HaveagoodunderstandingofthecommunicationmechanismofCAN-busonthisbasis.ThethesisputsforwardasimplemethodofbuildingaCAN-busnodecommunicationnetwrokinMatlabusing
5、Simulinkblocks.ThedesignedcommunicationmodelreflectsthetransferconditionsofCAN-bus,andachievesthefunctionofcommunicationbetweenelectronicnodes.Thesimulationresultsshowthatthismodelcanbeusedasthebusperformanceanalysistool.Thethsisalsodoessomesimpleresearchesontherandomanalysisof
6、messageresponsetime.②Comparetheimpactonharnesscrosstalkofunshieldedtwistedpaircablesandshieldedtwistedpaircables,usingsimulationmeathod,byanalyzingthescatteringparameters.Anddiscussthecrosstalkbetweensinglelineandtwistedpaircableonthebasisofstudyingthemulti-conductortransmissio
7、nlinetheoryandtheroyofcrosstalk.Thenverifythefeasibilityofusingcascadetransmissionlinemodeltocalculatethetwisted-paircrosstalkbycomparingthecalculationandsimulationresultofthetwisted-paircrosstalk.③Thisthesisprovidesapreventivemethodagainstunauthorizeddatatransmissionproblemswh
8、ichmayariseduringtheCAN-buscommunicationprocess.Thecha
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