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毕业设计英文文献1PUREELECTRICVEHICLEBATTERYMANAGEMENTSYSTEMRESEARCHANDDESIGNWITHTHEARRIVALOFANEWERA,THEWORLDAPPEAREDTHESHORTAGEOFENERGYANDOTHERISSUES,INCLUDINGENVIRONMENTALISSUESAREALSOINCREASINGLYPROMINENTAPPEARANCEOFPUREELECTRICVEHICLES,INSTEADOFTHEORDINARYGASOLINEANDDIESELVEHICLEEMISSIONS,NOISEINTHEDISADVANTAGES,THEAPPLICATIONOFELECTRICVEHICLESBYTHEGLOBALATTENTIONANDATTHESAMETIME,THEDESIGNOFBATTERYMANAGEMENTSYSTEMINELECTRICVEHICLE,ISTHEKEYTOPROMOTETHETECHNOLOGYOFELECTRICVEHICLEENERGYCONSERVATIONTARGET,ISAMAJORFACTORINTHEDEVELOPMENTOFELECTRICVEHICLESINTHISPAPER,TAKINGTHEPLANNINGANDDESIGNOFOURCHANGANPUREELECTRICVEHICLEANDTHEMAINDESIGN,RESEARCHANDDESIGNOFASINGLECHIPMICROCOMPUTERASTHEMAINCONTROLLEROFTHEBATTERYMANAGEMENTSYSTEM,THEDESIGNOFSPECIFICFUNCTIONSOFTHESYSTEMCANREALIZEREALTIMEVOLTAGEDETECTION,REALTIMEDETECTIONOFBATTERYBATTERYTEMPERATURE,INSULATIONRESISTANCEANDOTHERFUNCTIONSCANBECOMPAREDTOTHEABOVETESTDATA,IFEXCEEDTHEALLOWEDRANGESET,THESYSTEMWILLSOUNDTHEALARMANDCONTROL,CANBUSCOMMUNICATIONRELAYINFORMATIONTOTHEELECTRICVEHICLECONTROLLER,CONVENIENTVEHICLECONTROLLERAIMINGATTHEFAULTSWHENBEFORETHEEMERGENCEOFEXCLUSIONORIMPROVEWITHTHECONTINUOUSDEVELOPMENTOFSOCIETY,THECONTINUOUSDEPLETIONOFENERGY,WILLINTHENEARFUTURE,BRINGUNPREDICTABLEDISASTERSENERGYCONSUMPTIONATTHESAMETIME,TOTHEENVIRONMENTCAUSEDBYTHEIRREVERSIBLEEFFECTSFOREXAMPLE,AIRPOLLUTIONCAUSEDBYCARS,WHILECONSUMPTIONOFOILOFTHISNONRENEWABLERESOURCESONTHEEARTHWITHTHEDEVELOPMENTOFSOCIETY,THELEVELOFAUTOMOBILEMANUFACTURINGCONTINUESTOIMPROVE,PEOPLESLIVINGSTANDARDSIMPROVED,THECARHASBECOMEANESSENTIALPARTOFPEOPLESDAILYTRAFFICTOOLS,CARMOREFASTER,RESOURCECONSUMPTION,POLLUTION,ENERGYSHORTAGEPROBLEMAPPEARED,ANDTHEPROBLEMISMOREANDMOREURGENTAUTOMOBILEPRODUCTIONANDSALESCHINESERANKSFIRSTINTHEWORLD,ENERGYCONSUMPTIONANDENVIRONMENTALDAMAGERESULTINGPROBLEMSMORESEVEREHOWTHEWORLDAUTOMOBILEINDUSTRYTOCOPEWITHTHEENERGYANDENVIRONMENTALPROBLEMSTHEANSWERISTOVIGOROUSLYDEVELOPENERGYSAVINGTECHNOLOGIES,THEDEVELOPMENTOFNEWENERGYVEHICLESTHEREFORE,ALLTHEWORLDWITHTHEDEVELOPMENTOFELECTRICVEHICLES,THEAUTOMOBILEMANUFACTURERSAREACTIVELYENGAGEDINRELATEDTECHNOLOGYRESEARCHANDDEVELOPMENT,ANDGOVERNMENTDEPARTMENTSTOSUPPORTANDHELP,COELECTRICVEHICLEINDUSTRY,FORMULATERELEVANTLAWSANDREGULATIONSCOMPAREDWITHEUROPEANCOUNTRIES,CHINESEFACESEVENMORESERIOUSPROBLEMS,THEREFORE,THEDEVELOPMENTOFELECTRICVEHICLESISMOREIMPORTANTFOROURCOUNTRYATPRESENT,CHINAHASBEENTHEDEVELOPMENTOFELECTRICVEHICLESASAKEYPROJECTOFTHENATIONAL“863PLAN“,ASANIMPORTANTNATIONALSTRATEGY,ANDALSOAS“EMERGINGINDUSTRY1025“INTHEPLANNINGOFNATIONALSUPPORT,GIVEFROMTHAT,OURCOUNTRYECONOMYREVITALIZEANDINDUSTRYSHIFTTOELECTRICVEHICLESASTHEBREAKTHROUGHPOINT,ANALYSISOFTHEINDUSTRY,THEELECTRICCAROFTHEFUTUREWILLFACETHREEMAJORTECHNICALPROBLEMSINCLUDINGPOWERSOURCE,MOTORANDVEHICLECONTROL,WHICHISTHECOREPART,THEELECTRICSOURCEMANAGEANDMONITORTHEREASONABLEELECTRICSOURCEOFELECTRICVEHICLE,ITISTOSTRENGTHENTHEMANAGEMENTOFTHEBATTERYBATTERYMANAGEMENTISTOENSURETHESAFEUSEOFBATTERYATTHESAMETIME,IMPROVETHESERVICELIFEOFTHEBATTERY,WHICHISCURRENTLYFACINGONEOFTHEKEYTECHNOLOGIESFORELECTRICVEHICLEURGENTIMPROVETHEBATTERYPRODUCTIONTECHNOLOGYANDIMPROVETHEBATTERY2MANAGEMENTLEVELARETHEMAINWAYSTOIMPROVETHEPERFORMANCEOFBATTERY,SOASTOIMPROVEANDPERFECTTHETECHNICALREQUIREMENTSOFBATTERYATPRESENT,THEPOWERSOURCEOFPUREELECTRICVEHICLESONTHEMOSTSUITABLEISTHELITHIUMBATTERY,THELITHIUMBATTERIESAREEXPENSIVE,ANDEASILYDAMAGED,THEREFORE,CONTRADICTIONSINTHEASPECTOFSAFEUSEOFLITHIUMBATTERYANDLITHIUMBATTERYSERVICELIFEINCREASERESTRICTSTHEDEVELOPMENTOFELECTRICVEHICLEINCHINA,EVENHASBECOMETHETUMORVIGOROUSLYDEVELOPTHEBATTERYMANAGEMENTSYSTEM,SAFETYOFLITHIUMBATTERIESCANBEEASILYDAMAGED,SOASTOIMPROVETHEBATTERYLIFE,APLURALITYOFTHEPROTECTIONOFTHEDRIVERSAFETY,PLAYSAVITALROLETHEBATTERYMANAGEMENTSYSTEMANDTHEMOTORVEHICLESYSTEM,CONSTITUTETHECORETECHNOLOGYOFNEWENERGYVEHICLESINSUMMARY,THEBATTERYMANAGEMENTSYSTEMOFELECTRICVEHICLEISANIMPORTANTPARTOFELECTRICCARESSENTIAL,ONTHERESEARCHOFBATTERYMANAGEMENTSYSTEMFORTHEDEVELOPMENTOFCHINASAUTOMOBILEINDUSTRYPLAYSANIMPORTANTROLEINTHEELECTRICVEHICLEDEFINITIONISRELATIVE,ITISCOMPAREDWITHTHETRADITIONALFUELVEHICLES,HYBRIDELECTRICVEHICLETOBEATLEASTAVEHICLEPOWERSUPPLY,DRIVINGPARTORALLOFTHEOUTPUTOFTHEMOTORVEHICLEBECAUSEITISPUREELECTRICVEHICLE,ITSCOMPOSITIONWITHOUTTHEINTERNALCOMBUSTIONENGINE,INSTEADOFTHETRADITIONALAUTOMOBILEENGINEDEVICEISANELECTRICDRIVE,THETRADITIONALTANKCARISBATTERYREPLACEMENTFIRSTOFALL,GASENGINEVEHICLEANDELECTRICVEHICLEWORK,WORKISNOTTOPRODUCEAUTOMOBILEEXHAUST,THEENVIRONMENTWILLNOTCAUSEPOLLUTION,EMISSIONSAREALMOSTASA“ZERO“SECONDLY,THETRADITIONALAUTOMOBILEENGINEWORKWILLPRODUCENOISE,ANDTHEMOTORWORKNOISEISMUCHSMALLERTHANTHEINTERNALCOMBUSTIONENGINE,WHICHISHELPFULTOREDUCETHECITYNOISEPOLLUTIONTHIRDLY,THEUSEOFELECTRICVEHICLESENERGYPOWER,ITCANBEOBTAINEDBYUSINGMANYMETHODS,RELATIVETOTHEFUELSOURCESHOULDBEDIVERSIFIED,HYDROPOWER,WINDPOWER,NUCLEARPOWER,THERMALPOWER,THEPOWERTOCHARGETHEBATTERY,HUMANSDEPENDENCEONOILCANBEGREATLYREDUCEDELECTRICCARSCANBERECHARGEDATNIGHT,THISDAYTIMEPEAKISAVOIDED,BUTALSOVERYTOTHEPOWERGRIDLOADBALANCINGBENEFITVEHICLEPOWERSUPPLY,ELECTRICMOTOR,BATTERYMANAGEMENT,VEHICLECONTROLANDOTHERCOMPONENTSCANUSUALLYBECOMPOSEDOFAPUREELECTRICVEHICLE,THISPAPERMAINLYDISCUSSEDTHEUSEOFTHEBATTERYMANAGEMENTSYSTEMINELECTRICVEHICLESFROMENERGYSAVINGPOINTOFVIEW,THERESEARCHANDEXPERIMENTRESULTS,INTERMSOFENERGYEFFICIENCY,THEGASOLINEENGINEHASBEENLAGGINGBEHINDELECTRICVEHICLES,ESPECIALLYTHEROADTRAFFICCONGESTIONINTHECITY,AUTOSTOP,CARTRAVELLINGSPEEDISLOWINTHEENVIRONMENT,MORESUITABLEFORELECTRICVEHICLESTOP,NOVEHICLEENERGYCONSUMPTIONTHEBRAKINGPROCESS,THEMOTORISAUTOMATICALLYCONVERTEDINTOAGENERATOR,THEBRAKINGDECELERATIONPROCESSTOACHIEVETHEREUSEOFENERGYLEADACIDBATTERIES,NICKELCADMIUMBATTERIES,NICKELHYDROGENBATTERIES,LITHIUMIONBATTERY,THEBATTERYWASKNOWNASTHETWOBATTERY,TWOBATTERYFORPUREELECTRICCARSPROVIDETHEONLYSOURCEOFFUTUREDEVELOPMENTOFELECTRICVEHICLESISTHEDIRECTIONOFTHEPUREELECTRICVEHICLENOWADAYS,PUREELECTRICVEHICLETECHNOLOGYDEVELOPMENTISMOREANDMOREADVANCED,SMALLBATCHPRODUCTIONOFELECTRICVEHICLESAREBEINGCARRIEDOUTINTHEDEVELOPEDCOUNTRIESOFTHEWORLDANDCHINASAUTOPARTSFACTORY,EXHAUSTTHEILLSINTHEPUREELECTRICVEHICLEINDRIVINGPROCESSISCOMPLETELYELIMINATED,TWOENERGYELECTRICITY,ISPUREELECTRICVEHICLECOMPLETELYUSE,SUSTAINABLEENERGYACCORDINGTOTHEREQUIREMENTOFPUREELECTRICCARSINDEXTOTHEBATTERYMANAGEMENTSYSTEM,THESPECIFICPOWERREQUIREMENTSOFACTUALELECTRICVEHICLESANDSAFETYINDEXASACRITERION,COMBINEDWITHTHEHARDWAREDESIGNANDSOFTWAREPROGRAMMINGARETHEWAYTODESIGNAPRACTICAL,3STRONGSTABILITYOFTHEBATTERYMANAGEMENTSYSTEMREQUIREMENTSFORTHEPERFORMANCEOFTHEBATTERYMANAGEMENTSYSTEM,DIFFERENTISNOTTHESAME,THROUGHACCESSTORELEVANTTECHNICALDATA,WERECOLLECTEDANDANALYZED,THEDESIGNSCHEMEOFTHEBATTERYMANAGEMENTSYSTEMTHISPAPERISMAINLYDESIGNEDELECTRICCARBATTERYMANAGEMENTSYSTEMUSEDINTHEDESIGNOFTHECHANGANAUTOMOBILECO,THECOMPANYADOPTSAMINIATUREPUREELECTRICVEHICLESISLEADACIDBATTERY,COMPOSEDOFAPLURALITYOFMONOMERBATTERYSTRINGBATTERYCONNECTEDTOCONSTITUTETHEVOLTAGEOFEACHBATTERY,12VBATTERY,APUREELECTRICVEHICLEHASATOTALOF8BATTERIESCOMPOSITION,THETOTALVOLTAGEIS12896VTHECHANGANAUTOMOBILECORELATEDREQUIREMENTSOFTHEPUREELECTRICCARTECHNOLOGYINDEXANDDESIGNCONCEPT,THISPAPERWILLDESIGNTHEFOLLOWINGFUNCTIONS,TOMEETTHEBATTERYMANAGEMENTSYSTEMOFELECTRICVEHICLEBATTERYMANAGEMENTFUNCTIONTHEPOWERBATTERYELECTRICVEHICLECANSATISFYTHEREQUIREMENTOFSPECIFICINDICATORSINTHENORMALVOLTAGE,CURRENT,TEMPERATURE,INSULATIONETCBASEDONTHIS,WEDESIGNTHEBATTERYMANAGEMENTSYSTEMTHEHARDWAREDESIGNOFTHESYSTEMMAINLYCONSISTSOFPIC18F4580SINGLECHIPMICROCOMPUTERASTHEMAINCONTROLMODULE,MCUMINIMUMSYSTEMBUILDINGNEEDS,REALTIMECLOCKCIRCUITANDRESETCIRCUITINCLUDINGTHEBATTERYRELATEDDATAINFORMATIONTODETECTINSULATIONRESISTANCEDETECTIONCIRCUIT,TEMPERATUREDETECTIONCIRCUIT,CURRENTDETECTIONCIRCUIT,VOLTAGEDETECTIONCIRCUITSO,THEDETECTIONCIRCUITIFABNORMALITIES,ANDCOMMUNICATIONTHROUGHCANBUS,SOTHATTHEVEHICLECONTROLLERMODULEFORTHECORRESPONDINGCONTROLTHECURRENTDETECTIONCIRCUITTHECIRCUITCANREALIZEREALTIMEDETECTIONCELLSYSTEMINTHEWORKPROCESS,THECHARGING,DISCHARGINGCURRENTSIZE,FORBEYONDTHENORMALCURRENTRANGE,WILLALARMPROCESSINGANDCANCOMMUNICATIONPROCESS,TOENSURETHATTHEBATTERYCANWORKNORMALLYTHETEMPERATUREDETECTIONCIRCUITTHEBATTERYWORKINGENVIRONMENTTEMPERATUREREALTIMEACQUISITION,THEINITIALVALUESETTINGTEMPERATURESIGNALANDSYSTEMCOLLECTEDFORCOMPARISON,IFITISFOUNDTHATTHETEMPERATUREEXCEEDSTHESETRANGE,THEMCUWILLCONTROLTHEOUTPUTOFTHEALARMCIRCUITTOSENDOUTSOUNDALARM,INORDERTOPREVENTHIGHTEMPERATUREPHENOMENONOFBATTERY,ANDLEDLIGHTSANDALARMSIGNALLIGHTPROMPT,ANDTHROUGHTHECANBUSCOMMUNICATIONVEHICLESYSTEMNOTICETOCONTROLTREATMENT,INORDERTOENSURETHEBATTERYWORKWITHINTHENORMALTEMPERATURERANGESPECIFIEDINSULATIONRESISTANCEDETECTIONCIRCUITINSULATIONDETECTIONDATAOFPUREELECTRICVEHICLEISTHEPRECONDITIONTOENSURETHENORMALUSEOFTHEELECTRICSYSTEMSCMAFTERWORK,AFTERSAMPLINGTHEVOLTAGEDATA,ACCORDINGTOTHEDATAPROCESSINGOFINSULATINGTHEPOSITIVEANDNEGATIVE,ARECOMPAREDTHROUGHTHEINTERNALPROGRAM,IFITISFOUNDTHATTHESAMPLINGRESISTANCEISLESSTHANTHENORMALVALUE,THATISLESSTHANTHEPRESCRIBEDMINIMUMINSULATIONRESISTANCEOFTHERESISTANCE,SOTHEBATTERYMANAGEMENTSYSTEMFROMTHEMAINCONTROLLERMCUCONTROLOUTPUTPINOFTHECORRESPONDINGOUTPUTLEVEL,THEALARMCIRCUITTOSENDOUTALARMSOUND,LIGHTFLASHINGSIGNALACCOMPANIEDBYLIGHTEMITTINGDIODETIPSFAULTALARMALARMFUNCTIONFAILUREALARMMODULEWITHSOUND,LIGHTSIGNALBYSINGLECHIPMICROCOMPUTERCONTROLSYSTEM,SIGNALOUTPUTCORRESPONDINGTOOUTPUTCONTROLWHENTHESYSTEMCOLLECTEDDATABEYONDTHEPRESCRIBEDRANGE,IMMEDIATELYACHIEVESOUNDANDLIGHTALARMTHESYSTEMINCLUDESDATAACQUISITIONOFTHEVOLTAGEDATA,TEMPERATUREDATA,CURRENTDATAANDINSULATIONRESISTANCETHEALARM,CANREMINDPROCESSINGANDIMPROVETHEABNORMALVOLTAGEDETECTIONCIRCUITVOLTAGEDATAMONOMERRESISTANCE