纯电动乘用车瞬态冲击虚拟仿真建模分析方法  

Virtual Simulation&Modeling Analysis Method for the Transient Impact of Pure Electric Passenger Vehicle

作　　者：王明正 赵建 何洪源 仲崇发 闫东 魏廷轩 Wang Mingzheng;Zhao Jian;He Hongyuan;Zhong Chongfa;Yan Dong;Wei Tingxuan(Global R&D Center,China FAW Corporation Limited,Changchun 130013)

机构地区：[1]中国第一汽车股份有限公司研发总院,长春130013

出　　处：《汽车工程师》2025年第1期26-31,共6页Automotive Engineer

摘　　要：为在整车产品开发前期对纯电动乘用车急踩/急松油门踏板(Tip in/Tip out)工况下Clunk异响水平进行评估,考虑传动系统中花键、轴齿、半轴球笼和轴承的间隙,建立了整车多体动力学模型,利用该模型计算获得轴承时域载荷,结合有限元分析方法获得减速器壳体关键点表面振动加速度时域信号,并与试验结果进行对比,验证了模型的准确性,基于此提出传动系统Clunk异响问题分析模型的建立和参数整定方法,从而实现在前期策划阶段对纯电动乘用车Clunk异响水平的评估。In order to evaluate the Clunk noise level of pure electric passenger vehicle under the condition of sudden pressing/releasing of the accelerator pedal(tip in/tip out)in the early stage of vehicle product development,a multi-body dynamic model of the vehicle is established considering the clearance between the splines,shaft teeth,half shaft ball cage and bearings in the transmission system.The time-domain load of the bearings is calculated using the model,and the time-domain vibration acceleration signal of the key points on the reducer housing is obtained by combining the finite element analysis method.The accuracy of the model is verified by comparing it with the experimental results.An analysis model for Clunk noise in the transmission system and a parameter tuning method are proposed to evaluate the Clunk noise level of pure electric passenger vehicles in the early planning stage.

关 键 词：纯电动乘用车 传动系统 间隙 多体动力学 瞬态响应 Clunk异响 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]