AI智能总结
DavidCrecelius AAMAdvancedTechnologyDevelopmentCenterDetroit, Michigan TopicsOverview AAMisaLeadingGlobalDrivelineSupplier Global leader in design,engineering and manufacturing of automotive propulsion systemsandtechnologiestosupportelectric,hybridand ICEvehicles TrendsinElectricPropulsion IncreasingMotorSpeedsandSystemIntegration BenefitsofHigh-SpeedMotors POWER=TORQUEXSPEED HigherspeedenableslowertorqueforthesamepowerLowertorqueenablesaphysicallysmallermotor Lessactivematerial.LessmassLesspackagespace·Lesscost Samepower, smallermotor,lesscost AAM'sHigh-SpeedMotorReducesEDUsize,mass,andcost BarrierstoHigh-SpeedMotors MotorBarriers-HeavyRareEarth(HRE)Materials AAM30kRPMHigh-SpeedEDU 224kWInductionMotorw/CopperRotorMaxOperatingSpeed:30kRPMDualLayshaft23:1GearReductionSicRingInverter@650VdcDielectric Oil Cooling: Motor, Inv, Gear BoxMotor&InverterVolume:9.07LitersPowerDensity:24.7kW/L (Motor+Inv)TeslaModel3PowerDensity:10.02kW/LHeavyRareEarth(HRE)MineralFreeMotorProjectpartiallyfundedbyDepartmentofEnergy(DOE)cooperativeagreement Induction Motor Design Specification UtilizedTeslaModel3assimulationplatform Constructedhigh-speedmotorspecsbasedonvehicleperformance(Front&Rear) DevelopedarrayofEMmotordesignsandselectedoptimal High-SpeedMotorEMDesign Cross-SectionofMotorOnly&FullEDU StatorDesignandEncapsulation EncapsulatedStatorDesign EncapsulatedStatorHardware Over molded end tums with integrated fins for improved convection coolingPhaseterminalsencapsulatedMolded sealing surfaces on end turns for oil flowInjectionovermoldedencapsulation High-SpeedRotorDesign&Build RingInverterAssembly InverterDesign&Components DC Link Voltage: 650VdcMaxPhaseCurrent:350ArmsPowerDevice:SiC1200V.TO-247(x24)PeakOutputPower:280kVAInvertervolume:1.415liters(lncludingCap) SinteredMOSFETHeatsinkAssemblies DualLayshaftHigh-SpeedGearbox Compound HelicalGear Overall ratio23:1Compoundhelicalgearsloadshareloadfromrotorshaft180°pinion gear location cancels axial load on rotor shaftRinggearcombinesloadfromdualhelicalgearsReduced axial load on rotor gear enables low-cost high-speed bearing Full EDUbuildwithhigh-speedmotor,ringinverter,anddual layshaftqearreduction Motor Only Testing Motor only unit assembled and setup on high-speed dyno fortestingCompletedtestingaccordingtoestablishedtestplanTested motorto 30kRPM underno-load condition andto15kRPM loaded due to dyno limitationMotordrivenbySemikronSKAlinverter MotorOnlyTestResults PeakTorque:200.6NmPeak Power:223.4kwPeak Motor Efficiency = 95.35% MotorEfficiencyTestResults Full EDUDynoTesting DOEEDUPeakTestResults MotorSpeed:0-30kRPMPeakAxleTorque:4265NmPeakPower:194kWPeak SystemEfficiency=91.4%Motor + gearbox + inverter EDUAxleTorqueOutput EDUAxleOutputPowerMap Project Summary KeyAccomplishments >DevelopedhighpowerdensityEDUw/DOEfundingassistance>Highefficiencyinductionmotorwith3okRPMoperation≥Injectionovermoldedstatorencapsulation>Copper sintered MOSFETheat sinkassemblies on TO-247packageHighly integrated ring inverter withlow inductancebus bar>Dual layshaftgearboxwithrotorshaftloadcancelling>Dyno testing alignment with expectedmotor simulation>AchievablemanufacturingplanforthedevelopedEDU Next Steps:FurtherHigh-SpeedDevelopment >New40kRPM IMmotordesign>New39.6:1dual layshaftgear-box>New 800Arms,800Vring inverter>Projectedpowerdensityof~60kW/L 每日免费获取资料 每日微信群内分享7+最新行业报告: 每周分享当周华尔街日报、经济学人 行业报告均为公开版,权利归原作者所有,参一江湖仅分发做内部学习。 关注公众号领取粉丝福利 行业报告英语外刊!行业社群参一江湖·聚焦行业前沿 &AQ Decide now: Switch between the sessions or stay here