新能源汽车动力总成的可靠性改进方向探索

新能源汽车动力总成可靠性改进方向探索ExplorationonReliabilityImprovementofPowertrainforNewEnergyVehicle1/11Presentedby：GaoWenkai新能源汽车动力总成的可靠性改进方向探索第1页OutlineComparisonofDifferientEVsBackgroundGroupDivision2/11新能源汽车动力总成的可靠性改进方向探索第2页DevelopmentofNewEnergyVehicles3/11新能源汽车动力总成的可靠性改进方向探索第3页NationalStandardBackgroundofAutomotiveIndustry4/11新能源汽车动力总成的可靠性改进方向探索第4页10YearsStrategicTargetTypeSalesDomesticMarketShareOilConsu-mption2025SalesDomesticMarketShareOilConsu-mptionEV1mio70%3mio80%FCEV1000AreaOpera-tionEEV5L/100km4L/100kmEEVandNEVMainObjectesPlanning5/11新能源汽车动力总成的可靠性改进方向探索第5页HybridElectricVhicle(HEV)AdvantagesReducefuelconsumptionThedriverneednottochangehabbitImprovedrivingperformanceReducenoiseofmechanicalDisadvantagesTechnologycostistoohighPropertylimitedbydrivingconditon6/11新能源汽车动力总成的可靠性改进方向探索第6页FuelCellElectricVehicle(FCEV)GenerallyFuelcellsinvehiclesgenerateelectricitytopowerthemotor,generallyusingoxygenfromtheairandcompressedhydrogen.AdvantagesZero-emissionsCharginggasquicklyHavinglongerdrivingdistancethanPEVDisadvantagesTechnologycostistoohighZero-emissionshydrogenproductionisachanllengeStorageandtransportationaredifficult7/11新能源汽车动力总成的可靠性改进方向探索第7页PureElectricVehicle(PEV)AdvantagesZero-emissionsHighutilizationofenergyLownoiseSimpleConfigurationofvehicleDisadvantagesDrivingdistanceisshortChargingtimeislongBatterylifeisshortTechnologycostistoohigh8/11新能源汽车动力总成的可靠性改进方向探索第8页TypeHEVFCEVPEVDistanceEmissionChargingTimeOilSavingChargingEquipmentIndustrializationPotentialTechnicalDifficultyCompareVerygoodnormalgoodHEVandPEVhaveadvantagesandpotentialintenyears9/11新能源汽车动力总成的可靠性改进方向探索第9页PureElectricVehicle(PEV)10/11新能源汽车动力总成的可靠性改进方向探索第10页GroupDivision

MotorControlIn-WheelMotorConfigurationPowerBetteryResearchBetteryManagementSystemMotorStructure11/11新能源汽车动力总成的可靠性改进方向探索第11页点击添加文本点击添加文本点击添加文本点击添加文本The

BatteryPresentedby：ChenXinyue1/7新能源汽车动力总成的可靠性改进方向探索第12页PEV'sRequirementsonBatteriesTheComparisonBetweenDifferentBatteriesReliabilityImprovementofBatteriesOutline2/7新能源汽车动力总成的可靠性改进方向探索第13页点击添加文本点击添加文本点击添加文本点击添加文本EnvironmentalProtectionHighCostPerformanceLong-LifeHighEnergyDensityWhatrequirementsdoPEV’sbatteriesneedtomeet?Comparedtootherbatteries,lithiumbatteryismoreenvironmentallyfriendly,hashighspecificenergy,andthusisthemostpromising.3/7新能源汽车动力总成的可靠性改进方向探索第14页点击添加文本点击添加文本点击添加文本点击添加文本LiFePO4NCM/NCALiCoO2LiMn2O44/7新能源汽车动力总成的可靠性改进方向探索第15页

NCANCMLiFePO4LiMn2O4LiCoO2VoltagePlatform3.73.63.23.83.7Energy

Density＞180160~180120~130130~150150~180CycleLife＞＞＞500~800＞1000CostLowLowHighTheLowestHigherComprehensivePerformanceExcellentExcellentGoodBadGoodAdvantagesHighenergydensity,goodlowtemperatureperformanceElectrochemicalstability,goodcycleperformanceHighsafety,longcyclelifeManganeseisrichinresources,lowprice,goodsecurityStablecharginganddischarging,simpleproductionprocessDisadvantagesPoorperformanceathightemperature,poorsafety,highproductiontechnologyrequirementsThepriceofcobaltisexpensivePoorperformanceatlowtemperature,lowdischargevoltageLowenergydensityandpoorelectrolytecompatibilityThepriceofcobaltishigh,lowcyclelife5/7新能源汽车动力总成的可靠性改进方向探索第16页

ReliabilityImprovementProduction

CraftElectrolyteCost6/7新能源汽车动力总成的可靠性改进方向探索第17页Doyouknowgraphene?7/7新能源汽车动力总成的可靠性改进方向探索第18页点击添加文本点击添加文本点击添加文本点击添加文本BatteryManagementSystemPresentedby：WangXiaorong1/15新能源汽车动力总成的可靠性改进方向探索第19页WhatistheBMS?WhydotheEVsneedBMS?Whatisthedirectionforthereliability?Outline2/15新能源汽车动力总成的可靠性改进方向探索第20页Lithium-ionbatterypackhasmanyproblemssuchassafety,durability,dynamic,cost

andsoon,whichrestrictsthewideapplicationoflithium-ionbatteryinvehiclefield.Lithium-ionbatterysafeandreliableworkingareaisnarrow,theneedforbatterymanagementsystemforeffectivemanagementandcontrol.WhydotheEVsneedBMS?3/15新能源汽车动力总成的可靠性改进方向探索第21页Lithium-ionbatterysafetyoperatingwindowrangeisnarrow：Reliableoperatingtemperature：-20~55℃4/1522新能源汽车动力总成的可靠性改进方向探索第22页SOCBatteryParameterMonitorSOHSOFFaults

DiagnosisOBDSafetyControlandReportChargingControlBalanceFunctionsSafetyTempretureControlEMCSOEWhatistheBMS?5/15新能源汽车动力总成的可靠性改进方向探索第23页Durability

SafetyDynamicWhatisthedirectionforthereliability?6/15新能源汽车动力总成的可靠性改进方向探索第24页点击添加文本点击添加文本点击添加文本点击添加文本Safety7/15新能源汽车动力总成的可靠性改进方向探索第25页BackgroundTheToyotaPriusfireincident.08.ChevroletWolandacaughtfire.05.FiskKarmafireincident01.Boeing787fireincident01.Theaccidentgreatlyhampertheconfidenceofconsumerstoacceptelectricvehicles,hinderthepopularityofelectricvehicles.8/15新能源汽车动力总成的可靠性改进方向探索第26页AirgoinAirgooutAirgoinAirgooutThermalRunawayinBatteryPack机械触发电触发热触发短路产热热失控9/15新能源汽车动力总成的可靠性改进方向探索第27页InternalShortCircuitinBatteryPack

ISC

Batteryinternalself-loop,thecontinuousconsumptionofthebatterypoweriscalledtheshortcircuit.ISC10/15新能源汽车动力总成的可靠性改进方向探索第28页点击添加文本点击添加文本点击添加文本点击添加文本Durability11/15新能源汽车动力总成的可靠性改进方向探索第29页PhenomenonResistantIncrease

CapacityDecayResearchonBatteryDurabilityElementdischargeratechargeratetemperaturecut-offvoltageDurability12/15新能源汽车动力总成的可靠性改进方向探索第30页点击添加文本点击添加文本点击添加文本点击添加文本Dynamic13/15新能源汽车动力总成的可靠性改进方向探索第31页StatusofHealthEstimatesSOH,thesameasbatterydurability,isoneofthemostimportantstateofthebattery.TheSOHofthebatteryisusuallydefinedbythelossofcapacity

ofthebattery.Batteryaging.14/15新能源汽车动力总成的可靠性改进方向探索第32页电池性能衰减TheSOFestimationmainlyreferstotheavailableoutputpowerStateofFunction

15/15新能源汽车动力总成的可靠性改进方向探索第33页点击添加文本点击添加文本点击添加文本点击添加文本The

motorPresentedby：QiaoDongdong1/12新能源汽车动力总成的可靠性改进方向探索第34页OutlineRequirementsMotorIndustryStatusQuoTheSelectionofMotorReliabilityofMotor2/12新能源汽车动力总成的可靠性改进方向探索第35页Vibration

CoolingSealing

Requirements3/12新能源汽车动力总成的可靠性改进方向探索第36页PermanentMagnetSynchronousMotorAsynchronousMotorMotorIndustryStatusQuo4/12新能源汽车动力总成的可靠性改进方向探索第37页PerformanceandTypeDCMAMPMSMSRMSpeedRange/rpm4000-60001-04000-10000>15000PowerDensityLowMiddleHighHigherWeightHeavyMiddleLightLightVolumeBigMiddleSmallSmallReliabilityBadGoodGoodGoodStructuralRobustnessBadGoodGoodGoodTheControllerCostLowHighHighGeneralComparisonofPerformanceThePermanentMagnetSynchronousMotorTheSelectionofMotor5/12新能源汽车动力总成的可靠性改进方向探索第38页ThestatorThepermanentmagnetrotorThecoverandtheshellTheStructureofPMSM6/12新能源汽车动力总成的可靠性改进方向探索第39页ThevibrationofPMSMThe

sealing

ofPMSMThe

heatdissipation

ofPMSMTheReliabilityofPMSM7/12新能源汽车动力总成的可靠性改进方向探索第40页ElectromagnetictorquevibrationMechanicalvibrationTheroadexcitationvibrationTheVibrationofPMSM8/12新能源汽车动力总成的可靠性改进方向探索第41页IncreasedmechanicalwearChangemagneticgapReducethemagnetismofpermanentmagnetNormalmovementAbnormalmovementTheVibrationEffectofPMSM9/12新能源汽车动力总成的可靠性改进方向探索第42页TheHeatSourceCopperlossIronloss

Mechanicalfriction

TheCoolingWayAircooling（rotor）Watercooling（stator）TheCoolingandSealingofPMSM10/12新能源汽车动力总成的可靠性改进方向探索第43页ForcedCoolingCoordinationofSealingandHeatDissipationConflictofSealingandHeatDissipationSealingCoolingTheCoolingandSealingofPMSM11/12新能源汽车动力总成的可靠性改进方向探索第44页RotorCoolingStatorCoolingWaterPipingArrangement

"Z"glyphSpiralTheStructureofCoolingSystem12/12新能源汽车动力总成的可靠性改进方向探索第45页点击添加文本点击添加文本点击添加文本点击添加文本In-Wheel

Motor

ConfigurationPresentedby：DaiLei1/9新能源汽车动力总成的可靠性改进方向探索第46页Outline2/9新能源汽车动力总成的可靠性改进方向探索第47页3/9新能源汽车动力总成的可靠性改进方向探索第48页WhyIn-WheelMotor?Simplified,lightweightConnectedbythesoftcable,moreflexible.Improvetheefficiency.Reducethenoise,improvethecar'sridecomfort.Theenergyrecoveryefficiencyofthebrakingsystemissignificantlyincreased4/9新能源汽车动力总成的可靠性改进方向探索第49页5/9新能源汽车动力总成的可靠性改进方向探索第50页SomeNewTechnicalChallengesIncreasethecar'sunsprungmassesMotorwillwithstandalargeimpactloadontheroadWheelinternalspaceislimitedCoolingandsealingprotectionproblems6/9新能源汽车动力总成的可靠性改进方向探索第51页TwotypesofIn-WheelMotor

TypeRotatingSpeedRotorArrangementDisadvantagesAdvantagesDeceleratedDriveHighInternalHeavy&WorkingNoiseEfficient&LowCostDirectDriveLowExternalHighCost&LowEfficiencyStructureSimplification&FastResponse7/9新能源汽车动力总成的可靠性改进方向探索第52页8/9新能源汽车动力总成的可靠性改进方向探索第53页ProblemDirectionUnsprungmassOptimizethestructure,LightweightTheimpactofthemotorfromtheroadsurfaceloadImprovethemotor‘sseismiccapacity，SettheactivevibrationdampingdeviceTorquefluctuationsTorqueripplesuppressionCorrosionofthewheelmotorImprovetheproductionprocessTheExplorationofDirectionsofImprovement

9/9新能源汽车动力总成的可靠性改进方向探索第54页点击添加文本点击添加文本点击添加文本点击添加文本Motor

ControlPresentedby：ZhengTengfei1/8新能源汽车动力总成的可靠性改进方向探索第55页PermanentmagnetsynchronousmotorcontrolsystemThe

function

of

the

controllerControl

technologyof

permanentmagnet

synchronous

motorThereliabilityofthecontrollerdesignandexplorationOutlineOutline2/8新能源汽车动力总成的可靠性改进方向探索第56页PMSMControlSystemConditioningcircuitTorqueSensorEncoderElectronicThrottleSelectorSwitchSpeedSensorPressureSensorTemper