新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索

新能源汽車動(dòng)力總成可靠性改進(jìn)方向探索ExplorationonReliabilityImprovementofPowertrainforNewEnergyVehicle1/11Presentedby：GaoWenkai新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第1頁(yè)OutlineComparisonofDifferientEVsBackgroundGroupDivision2/11新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第2頁(yè)DevelopmentofNewEnergyVehicles3/11新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第3頁(yè)NationalStandardBackgroundofAutomotiveIndustry4/11新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第4頁(yè)10YearsStrategicTargetTypeSalesDomesticMarketShareOilConsu-mption2025SalesDomesticMarketShareOilConsu-mptionEV1mio70%3mio80%FCEV1000AreaOpera-tionEEV5L/100km4L/100kmEEVandNEVMainObjectesPlanning5/11新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第5頁(yè)HybridElectricVhicle(HEV)AdvantagesReducefuelconsumptionThedriverneednottochangehabbitImprovedrivingperformanceReducenoiseofmechanicalDisadvantagesTechnologycostistoohighPropertylimitedbydrivingconditon6/11新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第6頁(yè)FuelCellElectricVehicle(FCEV)GenerallyFuelcellsinvehiclesgenerateelectricitytopowerthemotor,generallyusingoxygenfromtheairandcompressedhydrogen.AdvantagesZero-emissionsCharginggasquicklyHavinglongerdrivingdistancethanPEVDisadvantagesTechnologycostistoohighZero-emissionshydrogenproductionisachanllengeStorageandtransportationaredifficult7/11新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第7頁(yè)P(yáng)ureElectricVehicle(PEV)AdvantagesZero-emissionsHighutilizationofenergyLownoiseSimpleConfigurationofvehicleDisadvantagesDrivingdistanceisshortChargingtimeislongBatterylifeisshortTechnologycostistoohigh8/11新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第8頁(yè)TypeHEVFCEVPEVDistanceEmissionChargingTimeOilSavingChargingEquipmentIndustrializationPotentialTechnicalDifficultyCompareVerygoodnormalgoodHEVandPEVhaveadvantagesandpotentialintenyears9/11新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第9頁(yè)P(yáng)ureElectricVehicle(PEV)10/11新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第10頁(yè)GroupDivision

MotorControlIn-WheelMotorConfigurationPowerBetteryResearchBetteryManagementSystemMotorStructure11/11新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第11頁(yè)點(diǎn)擊添加文本點(diǎn)擊添加文本點(diǎn)擊添加文本點(diǎn)擊添加文本The

BatteryPresentedby：ChenXinyue1/7新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第12頁(yè)P(yáng)EV'sRequirementsonBatteriesTheComparisonBetweenDifferentBatteriesReliabilityImprovementofBatteriesOutline2/7新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第13頁(yè)點(diǎn)擊添加文本點(diǎn)擊添加文本點(diǎn)擊添加文本點(diǎn)擊添加文本EnvironmentalProtectionHighCostPerformanceLong-LifeHighEnergyDensityWhatrequirementsdoPEV’sbatteriesneedtomeet?Comparedtootherbatteries,lithiumbatteryismoreenvironmentallyfriendly,hashighspecificenergy,andthusisthemostpromising.3/7新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第14頁(yè)點(diǎn)擊添加文本點(diǎn)擊添加文本點(diǎn)擊添加文本點(diǎn)擊添加文本LiFePO4NCM/NCALiCoO2LiMn2O44/7新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第15頁(yè)

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新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第16頁(yè)

ReliabilityImprovementProduction

CraftElectrolyteCost6/7新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第17頁(yè)Doyouknowgraphene?7/7新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第18頁(yè)點(diǎn)擊添加文本點(diǎn)擊添加文本點(diǎn)擊添加文本點(diǎn)擊添加文本BatteryManagementSystemPresentedby：WangXiaorong1/15新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第19頁(yè)WhatistheBMS?WhydotheEVsneedBMS?Whatisthedirectionforthereliability?Outline2/15新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第20頁(yè)Lithium-ionbatterypackhasmanyproblemssuchassafety,durability,dynamic,cost

andsoon,whichrestrictsthewideapplicationoflithium-ionbatteryinvehiclefield.Lithium-ionbatterysafeandreliableworkingareaisnarrow,theneedforbatterymanagementsystemforeffectivemanagementandcontrol.WhydotheEVsneedBMS?3/15新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第21頁(yè)Lithium-ionbatterysafetyoperatingwindowrangeisnarrow：Reliableoperatingtemperature：-20~55℃4/1522新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第22頁(yè)SOCBatteryParameterMonitorSOHSOFFaults

DiagnosisOBDSafetyControlandReportChargingControlBalanceFunctionsSafetyTempretureControlEMCSOEWhatistheBMS?5/15新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第23頁(yè)Durability

SafetyDynamicWhatisthedirectionforthereliability?6/15新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第24頁(yè)點(diǎn)擊添加文本點(diǎn)擊添加文本點(diǎn)擊添加文本點(diǎn)擊添加文本Safety7/15新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第25頁(yè)BackgroundTheToyotaPriusfireincident.08.ChevroletWolandacaughtfire.05.FiskKarmafireincident01.Boeing787fireincident01.Theaccidentgreatlyhampertheconfidenceofconsumerstoacceptelectricvehicles,hinderthepopularityofelectricvehicles.8/15新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第26頁(yè)AirgoinAirgooutAirgoinAirgooutThermalRunawayinBatteryPack機(jī)械觸發(fā)電觸發(fā)熱觸發(fā)短路產(chǎn)熱熱失控9/15新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第27頁(yè)InternalShortCircuitinBatteryPack

ISC

Batteryinternalself-loop,thecontinuousconsumptionofthebatterypoweriscalledtheshortcircuit.ISC10/15新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第28頁(yè)點(diǎn)擊添加文本點(diǎn)擊添加文本點(diǎn)擊添加文本點(diǎn)擊添加文本Durability11/15新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第29頁(yè)P(yáng)henomenonResistantIncrease

CapacityDecayResearchonBatteryDurabilityElementdischargeratechargeratetemperaturecut-offvoltageDurability12/15新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第30頁(yè)點(diǎn)擊添加文本點(diǎn)擊添加文本點(diǎn)擊添加文本點(diǎn)擊添加文本Dynamic13/15新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第31頁(yè)StatusofHealthEstimatesSOH,thesameasbatterydurability,isoneofthemostimportantstateofthebattery.TheSOHofthebatteryisusuallydefinedbythelossofcapacity

ofthebattery.Batteryaging.14/15新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第32頁(yè)電池性能衰減TheSOFestimationmainlyreferstotheavailableoutputpowerStateofFunction

15/15新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第33頁(yè)點(diǎn)擊添加文本點(diǎn)擊添加文本點(diǎn)擊添加文本點(diǎn)擊添加文本The

motorPresentedby：QiaoDongdong1/12新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第34頁(yè)OutlineRequirementsMotorIndustryStatusQuoTheSelectionofMotorReliabilityofMotor2/12新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第35頁(yè)Vibration

CoolingSealing

Requirements3/12新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第36頁(yè)P(yáng)ermanentMagnetSynchronousMotorAsynchronousMotorMotorIndustryStatusQuo4/12新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第37頁(yè)P(yáng)erformanceandTypeDCMAMPMSMSRMSpeedRange/rpm4000-60001-04000-10000>15000PowerDensityLowMiddleHighHigherWeightHeavyMiddleLightLightVolumeBigMiddleSmallSmallReliabilityBadGoodGoodGoodStructuralRobustnessBadGoodGoodGoodTheControllerCostLowHighHighGeneralComparisonofPerformanceThePermanentMagnetSynchronousMotorTheSelectionofMotor5/12新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第38頁(yè)ThestatorThepermanentmagnetrotorThecoverandtheshellTheStructureofPMSM6/12新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第39頁(yè)ThevibrationofPMSMThe

sealing

ofPMSMThe

heatdissipation

ofPMSMTheReliabilityofPMSM7/12新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第40頁(yè)ElectromagnetictorquevibrationMechanicalvibrationTheroadexcitationvibrationTheVibrationofPMSM8/12新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第41頁(yè)IncreasedmechanicalwearChangemagneticgapReducethemagnetismofpermanentmagnetNormalmovementAbnormalmovementTheVibrationEffectofPMSM9/12新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第42頁(yè)TheHeatSourceCopperlossIronloss

Mechanicalfriction

TheCoolingWayAircooling（rotor）Watercooling（stator）TheCoolingandSealingofPMSM10/12新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第43頁(yè)ForcedCoolingCoordinationofSealingandHeatDissipationConflictofSealingandHeatDissipationSealingCoolingTheCoolingandSealingofPMSM11/12新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第44頁(yè)RotorCoolingStatorCoolingWaterPipingArrangement

"Z"glyphSpiralTheStructureofCoolingSystem12/12新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第45頁(yè)點(diǎn)擊添加文本點(diǎn)擊添加文本點(diǎn)擊添加文本點(diǎn)擊添加文本In-Wheel

Motor

ConfigurationPresentedby：DaiLei1/9新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第46頁(yè)Outline2/9新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第47頁(yè)3/9新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第48頁(yè)WhyIn-WheelMotor?Simplified,lightweightConnectedbythesoftcable,moreflexible.Improvetheefficiency.Reducethenoise,improvethecar'sridecomfort.Theenergyrecoveryefficiencyofthebrakingsystemissignificantlyincreased4/9新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第49頁(yè)5/9新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第50頁(yè)SomeNewTechnicalChallengesIncreasethecar'sunsprungmassesMotorwillwithstandalargeimpactloadontheroadWheelinternalspaceislimitedCoolingandsealingprotectionproblems6/9新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第51頁(yè)TwotypesofIn-WheelMotor

TypeRotatingSpeedRotorArrangementDisadvantagesAdvantagesDeceleratedDriveHighInternalHeavy&WorkingNoiseEfficient&LowCostDirectDriveLowExternalHighCost&LowEfficiencyStructureSimplification&FastResponse7/9新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第52頁(yè)8/9新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第53頁(yè)P(yáng)roblemDirectionUnsprungmassOptimizethestructure,LightweightTheimpactofthemotorfromtheroadsurfaceloadImprovethemotor‘sseismiccapacity，SettheactivevibrationdampingdeviceTorquefluctuationsTorqueripplesuppressionCorrosionofthewheelmotorImprovetheproductionprocessTheExplorationofDirectionsofImprovement

9/9新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第54頁(yè)點(diǎn)擊添加文本點(diǎn)擊添加文本點(diǎn)擊添加文本點(diǎn)擊添加文本Motor

ControlPresentedby：ZhengTengfei1/8新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第55頁(yè)P(yáng)ermanentmagnetsynchronousmotorcontrolsystemThe

function

of

the

controllerControl

technologyof

permanentmagnet

synchronous

motorThereliabilityofthecontrollerdesignandexplorationOutlineOutline2/8新能源汽車動(dòng)力總成的可靠性改進(jìn)方向探索第56頁(yè)P(yáng)MSMControlSystemConditioningcircuitTorqueSensorEncoderElectronicThrottleSelectorSwitchSpeedSensorPressureSensorTemper