纯电动汽车动力总成悬置系统设计方法
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摘要
根据纯电动汽车和内燃机汽车在动力总成激励上的不同,建立某型纯电动汽车动力总成6自由度动力学模型,以动力总成固有频率和能量分布合理分配为优化目标,各个悬置静刚度和安装位置为设计变量,应用MATLAB/Isight对悬置系统参数进行优化,优化后固有频率和能量分布均满足设计要求。为控制动力总成质心在各工况下的位移,对各悬置非线性段刚度及拐点进行设计,设计后的动力总成质心位移满足位移控制要求。
According to the difference of the powertrain excitation between the pure electric vehicle(PEV) and the traditional internal combustion engine car, the 6-DOF dynamic model of a PEV powertrain is established. Firstly, with the reasonable natural frequencies and energy distributions of the powertrain as the target, and the mount static stiffness and the installation positions as the design variables, the MATLAB/Isight software is used to optimize the parameters of the suspension system. After the optimization, the natural frequencies and the energy distributions can satisfy the design requirements. In order to control the displacement of powertrain centroid in the typical and extreme conditions, the static stiffness and the x-coordinates of the turning points of each mount in the nonlinear sections are designed. After the design,the displacement of the powertrain centre of gravity can satisfy the control requirements.
According to the difference of the powertrain excitation between the pure electric vehicle(PEV) and the traditional internal combustion engine car, the 6-DOF dynamic model of a PEV powertrain is established. Firstly, with the reasonable natural frequencies and energy distributions of the powertrain as the target, and the mount static stiffness and the installation positions as the design variables, the MATLAB/Isight software is used to optimize the parameters of the suspension system. After the optimization, the natural frequencies and the energy distributions can satisfy the design requirements. In order to control the displacement of powertrain centroid in the typical and extreme conditions, the static stiffness and the x-coordinates of the turning points of each mount in the nonlinear sections are designed. After the design,the displacement of the powertrain centre of gravity can satisfy the control requirements.
引文
[1]上官文斌,陈大明,叶必军,等.车型系列中动力总成悬置系统的设计[J].汽车工程,2012,34(1):6-12.
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[6]LIU XIAO ANG,SHANGGUAN WEN BIN,LV ZHAOPING,et al.A study on optimization method of a powertrain mounting system with three cylinders engine[C].Proceedings of the Institution of Mechanical Engineers,Part C:Journal of Mechanical Engineering Science.2017,231(12):2235-2252.
[7]SHANGGUAN WEN BIN,LIU XIAO ANG,LV ZHAOPING,et al.Design method of automotive powertrain mounting system based on vibration and noise limitations of vehicle level[J].Mechanical Systems and Signal Processing,2016,76-77:677-695.
[8]方源,章桐,于蓬,等.电动车动力总成内部激励的研究分析[J].振动动.测试与诊断,2014,34(3):496-502+591.
[9]于蓬,陈诗阳,章桐,等.电动车动力总成在机械-电磁激励下的振动分析[J].振动与冲击,2016,35(13):99-105+139.
[10]方源,章桐,于蓬,等.电动车动力总成振动噪声的试验研究[J].振动振动、测试与诊断,2015,35(2):218-224+394-395.
[11]Specification for 261 Powertrain Mounts:Body-FrameIntegral Subsystems GMW14116[S].North American Engineering Standards.December 2006.
[12]刘晓昂,上官文斌,吕兆平.三缸发动机悬置系统设计方法的研究[J].振动工程学报,2016(5):804-813.
[13]刘晓昂,吕兆平,殷智宏,等.基于车内NVH控制的悬置刚度与阻尼的设计方法[J].振动振动、测试与诊断,2016,(1):145-151+203-204.
[14]陈大明,上官文斌.动力总成悬置系统刚体模态优化设计方法的研究[J].汽车技术,2011(2):34-38.
[2]韦小田.纯电动汽车动力总成悬置系统的振动分析和优化设计[D].重庆:重庆大学,2015.
[3]徐中明,李晓,刘和平.纯电动汽车动力总成悬置系统的优化[J].汽车工程,2012,34(9):806-810+815.
[4]唐静.动力总成悬置系统动态解耦方法的研究[D].广州:华南理工大学,2010.
[5]上官文斌,徐驰,黄振磊,等.汽车动力总成悬置系统位移控制设计计算方法[J].汽车工程,2006(8):738-742.
[6]LIU XIAO ANG,SHANGGUAN WEN BIN,LV ZHAOPING,et al.A study on optimization method of a powertrain mounting system with three cylinders engine[C].Proceedings of the Institution of Mechanical Engineers,Part C:Journal of Mechanical Engineering Science.2017,231(12):2235-2252.
[7]SHANGGUAN WEN BIN,LIU XIAO ANG,LV ZHAOPING,et al.Design method of automotive powertrain mounting system based on vibration and noise limitations of vehicle level[J].Mechanical Systems and Signal Processing,2016,76-77:677-695.
[8]方源,章桐,于蓬,等.电动车动力总成内部激励的研究分析[J].振动动.测试与诊断,2014,34(3):496-502+591.
[9]于蓬,陈诗阳,章桐,等.电动车动力总成在机械-电磁激励下的振动分析[J].振动与冲击,2016,35(13):99-105+139.
[10]方源,章桐,于蓬,等.电动车动力总成振动噪声的试验研究[J].振动振动、测试与诊断,2015,35(2):218-224+394-395.
[11]Specification for 261 Powertrain Mounts:Body-FrameIntegral Subsystems GMW14116[S].North American Engineering Standards.December 2006.
[12]刘晓昂,上官文斌,吕兆平.三缸发动机悬置系统设计方法的研究[J].振动工程学报,2016(5):804-813.
[13]刘晓昂,吕兆平,殷智宏,等.基于车内NVH控制的悬置刚度与阻尼的设计方法[J].振动振动、测试与诊断,2016,(1):145-151+203-204.
[14]陈大明,上官文斌.动力总成悬置系统刚体模态优化设计方法的研究[J].汽车技术,2011(2):34-38.