新型DHT混动汽车传动系敲击分析及优化

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主题词：DHT混合动力系统传动系异响振动噪声测试敲击平均动能算法中图分类号：0422.6 文献标志码：A DOI：10.19620/j.cnki.1000-3703.2024088（

DHTHybridVehicle Transmission System Rattle Analysis and Optimization

You Yong²，Peng Jiajun1²，WangDong³，JingGuoxi1，2

（1.CollegeofMechanicalEngineering，HebeiUniversityofTechnology，Tianjin3O400;2.TianjinKeyLaboatoryof

PowerTransmissionand SafetyTechnologyforNew Energy Vehicles，Tianjin300131;3.CATARC（Tianjin）Automotive Engineering Research Institute Co.，Ltd.，Tianjin

【Abstract】Toaddresstheabnormal noise isues inthedrivelineofaDHThybrid powertrain，vibrationand noisetestsare conductedonthepowertrain.Itisdeterminedthattheabnoralnoiseisagearatlenoise.Undertheparallelsecondgear，here are non-load-bearing gearson boththe electricdrive sideand the mechanical drive sidethat havearisk ofratle.Then， combiningthetestdatawiththestructuralparametersofthedriveline，amultibodydynamics modeloftheDHThybridsystemis established.Usingtheaverageratleenergyas anevaluationindex，this paper alsoanalyzes theinfluenceof relevanparameters. Consideringengineeringfeasibilityitproposesmethdtoimproveteoiseisseofthetrasmissionbyicreasingtheietia of thedual-massflywheelandadjusting theoutput torqueoftheP3motor.Finally，through Amesim simulationanalysis，the averagerattle energyindicators for the2optimizationschemesdecreasesby 38.5% and 30.8% ，respectively.Combinedwithreal vehicle tests，it is verified that the proposed solutions can effectively alleviate the rattle noise problem.

KeyWords：DHThybrid powertrain，Transmisson system abnormal noise，Vibrationand noise tests，Average rattle energy algorithm

【引用格式】尤勇，彭家骏，王东，等.新型DHT混动汽车传动系敲击分析及优化[J].汽车技术，2025（9）：36-43.YOUY，PENGJJ，WANGD，etal.DHTHybridVehicle Transmission SystemRattleAnalysisandOptimization[J].Automobile Technology，2025（9）： 36-43.

1前言

混合动力专用变速器（DedicatedHybridTransmis-sion，DHT）作为混合动力汽车的传动系统方案之一，由于多工作模式导致复杂的动力传递路径，系统对发动机扭振激励的响应更为敏感，使得变速器敲击噪声问题尤为突出。（剩余9413字）