BMS introduction

HellamanagementsystemLithium-IonBatteryManagementSystemLithiumIonBatteryManagementSystemBMSProductOverviewAgendaHellaGroupLithium-IonBatteryManagementSystem•ArchitectureProposal/BMSoverview•Lithium-IonBatteryMonitorUnit(BMU)•HighVoltageCurrentSensor(HVCS/IBS)•Lithium-IonCellMonitorUnit(CMU)•IsolationMeasurementDevice(IMD/IMOC)•Lithium-IonBatteryMonitoringSoftware(SW)Questions/OpenPoints2BMSProductOverviewMotivation–WhatforuseaBMSsystem?MeasuresandcontrolsthefunctionalityoftheHV-BatteryUsedinHybridandElectronicVehiclesFunctionalSafetyRelevance•InjuryofhumansduetoHighVoltage•InjuryofhumansduetouncontrollablefireofLithiumCellsBMSProductOverviewNormalelectricalsystemofEV/PHEVcarsBMScontrolledrelaysElectricsystemEnergysourcesandconsumers:G:chargesHVbatteryM:energyfromHVbatteryconsumesenergyBMSsystem:ResponsibleforcontrollingrelaysbetweenGandHVbatteryANDbetweenHVBatteryandMBMSProductOverview4MainFeaturesoftheBMSSystemMeasurebatteryvaluesContactorcontrolSwitchingofContactorstoDisconnect/ConnecttheBatteryandtheIntermediateCircuit,resp.theChargeCircuitHVILsignalsentandreceivedbyBMUtodetectopenloop/disturbedsignalHVIL:HighvoltageinterlockloopIMOC:IsolationResistanceMeasurement5LithiumIonBatteryManagementSystemCellvoltages/temperatures(CMUs)+HVonlink/batterypackside(IMOC)+currentflow(HVCS)ResistantbetweenHV+/-andGNDwithactive+passivemethodsupportedBMSProductOverviewHellaArchitectureProposal12VDAISYCHAINFaultlineBMU:HighVoltageSideBMU:LowVoltageSideµC(MC)µC(FUSA-SC)CANCOMCOMSupplyRelaisDriverContactMonitorµC(MC)µC(SC-FUSA)IsolationMonitorOptional:SSVformonitoringfaultlineCell-ControllerUpSupplyCell-ControllerDownLIN(Sync.)HWI/O-Crashsensor-KL15-HVILCOMandinternalCANCANsHV-CS12VLINBatteryPackNBatteryPack1BatteryPack2GalvanicIsolationCMUNCMU2VNX,TNY,BalancingV2X,T2Y,BalancingV1X,T1Y,BalancingBMSECU6LithiumIonBatteryManagementSystemBMU:highvoltageside2internalCANs:betweenmaincommunicationcontroller(MC)andsafetycontroller(SC)(differentialbus)2externalCANs:VehicleCAN+MCmeasurementCANCMU1BMSProductOverviewMechanical-InterfacestovehicleLxDxH:230x155x30Weight:350gLxDxH:140x85x20Weight:70gLxDxH:95x35x20Weight:60gBMUHVCSCMULithiumIonBatteryManagementSystemBMSProductOverviewAgendaHellaGroupLithium-IonBatteryManagementSystem•ArchitectureProposal/BMSoverview•Lithium-IonBatteryMonitorUnit(BMU)•HighVoltageCurrentSensor(HVCS/IBS)•Lithium-IonCellMonitorUnit(CMU)•IsolationMeasurementDevice(IMD/IMOC)•Lithium-IonBatteryMonitoringSoftware(SW)Questions/OpenPoints8BMSProductOverviewProduct-BatteryMonitorUnit(BMU)PictureProductFunctionManagementofLithium-Ion-Batterymonitoringincluding:ControlofCMU,integratedIsolationMonitoring+2HVmeasurements(IMOC)Controlofupto6Contactors/RelaysGathersmeasurementvalues(cellvoltages/temp,current,isolationvalue,batteryandlinksidevoltage)Customerapplication:CalculationofStateofChargeofthebattery+CalculationofStateofHealthPreventoverchargingandovertemperatureconditionsduetocellmonitoringTwoµC(32bitFreescaleBolero),ASILBclassificationScalabletodifferentbatterysizes(HybridorEV)IntegrationintobatterypackagepossibleSynchronisationoftheU,I,TmeasurementProductCharacteristics+interfacesStatusHellaB-sampleSeriesdevelopmentongoingProductionline:Shanghai9LithiumIonBatteryManagementSystemInterfacesintotal5HighSpeedCANInterfaces1LINInterface(HVCurrentSensor)CMUInterface(daisychain):Differential2wirecommunicationforcellvalues(U,I,T,Balancing,Error)LithiumIonBatteryManagementSystemBMSProductOverviewAgendaHellaGroupLithium-IonBatteryManagementSystem•ArchitectureProposal/BMSoverview•Lithium-IonBatteryMonitorUnit(BMU)•HighVoltageCurrentSensor(HVCS/IBS)•Lithium-IonCellMonitorUnit(CMU)•IsolationMeasurementDevice(IMD/IMOC)•Lithium-IonBatteryMonitoringSoftware(SW)Questions/OpenPoints10BMSProductOverview-HighVoltageCurrentSensorScalingconceptforhighvoltageapplicationsCurrentSensorGalvanicIsolation12VSupplyVoltageCarryOverDesignIntelligentBatterySensor14V/28V(IBS)ApplicationMicroHybrid:Lead-acid-BatteryAdvancedmodelbasedalgorithmforSoC,SoHandSoFProvenandflexiblemechanicaldesignHighVoltageCurrentSensor(HVCS)ApplicationE-Mobility:Lithium-Ion-BatteryAhBalancingCurrentMonitoringASILBcertificationongoing11LithiumIonBatteryManagementSystemBMSProductOverviewProduct-HighVoltageCurrentSensor(HVCS)ProductFunctionCurrentSensor(A)forHybridandElectricVehiclesBasedon12VIBSdesignGalvanicisolationbetweenmeasurementpath(HV)andcommunicationinterface(BMU)IntegratedAhbalancingAccuracyMeasurerange+/-23Aresolution1mAMeasurerange+/-375Aresolution12mAMeasurerange+/-1500Aresolution50mASamplingfreq：1KHzAccuracy：±0.2%Permanentloadcurrent:±155A,Ta.105°C,Ub=14VMax.peakcurrent:±1500A,allowedfor500msCurrentconsumption:max.85mAoperatingmodeOperatingtemperature:-40°C+105°CVoltagewithstand:ClassB(ISO23273-3)Insulationresistance:5M(ISO6469-3)Sealingclass:IP6K9(IEC60529)Weight:60gCurrentrange:0to400AInterface:LIN,powersupply:poweredbyBMUProductCharacteristics+interfacesPictureStatusHella+motivationSeries