同轴直联电动车桥传动系统动态特性研究
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摘要
同轴直联电动车桥采用行星减速机构,相比传统结构车桥具有传动比大、结构紧凑等优势。采用集中参数法建立了同轴直联纯电驱动车桥的动力学模型,并基于Runge-Kutta方法对不同输入转数下系统的输入与输出构件动态响应进行了计算与分析。结果表明,随着转数的提高,系统各构件振动呈现多个峰值,且高阶临界转数对应振动峰值对整体振动的贡献影响大于低阶临界转数。计算结果为进一步隔振分析提供参考,对提升电动汽车的振动噪声性能具有指导意义。
Coaxial direct coupling electric axle has the advantage of large transmission ratio and compact structure compared with traditional axles due to the application of planetary mechanism. Dynamic model of the axle is established using the lumped parameter method,calculation and analysis on the dynamic response of the input and output components under varying input revolution are conducted on the basis of Runge-Kutta method. The results show that the vibration of the system shows multi peaks with the increase of input revolution. The peak value of vibration corresponding to higher order critical revolution has greater influence on the overall vibration than that corresponding to lower order critical revolution. The results provide reference for the further vibration isolation analysis,and show guiding significance on the improvement of vibration and noise performance of electric vehicles.
Coaxial direct coupling electric axle has the advantage of large transmission ratio and compact structure compared with traditional axles due to the application of planetary mechanism. Dynamic model of the axle is established using the lumped parameter method,calculation and analysis on the dynamic response of the input and output components under varying input revolution are conducted on the basis of Runge-Kutta method. The results show that the vibration of the system shows multi peaks with the increase of input revolution. The peak value of vibration corresponding to higher order critical revolution has greater influence on the overall vibration than that corresponding to lower order critical revolution. The results provide reference for the further vibration isolation analysis,and show guiding significance on the improvement of vibration and noise performance of electric vehicles.
引文
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[10]Notker A,Joachim B,Franz P.Active Damping of Drive Train Oscillations for an Electrically Driven Vehicle[J].IEEE/ASME Transaction on Mechatronics,2004,9(4):697-700.
[2]Berriri M,Chevrel P,Lefebvre D.Active Damping of Automotive Powertrain Oscillations by a Partial Torque Compensator[J].Control Engineering Practice,2008,16(7):874-883.
[3]王耀南,孟步敏,申永鹏.燃油增程式电动汽车动力系统关键技术综述[J].中国电机工程学报,2014,34(27):4629-4639.(Wang Yao-nan,Meng Bu-min,Shen Yong-peng.Researches on power systems of extended range electric vehicles[J].Proceedings of The Chinese Society for Electrical Engineering,2014,34(27):4629-4639.)
[4] F.L.M.dos Santos,J.Antonis,F.Naclerio.Multiphysics NVH Modeling:Simulation of a Switched Reluctance Motor for an Electric Vehicle[C].IEEE Transactions on Industrial Electronics,2014,61(1):469-476.
[5]王兴,秦东晨,裴东杰.电动汽车动力性能仿真分析[J].机械设计与制造,2012(12):114-116.(Wang Xing,Qin Dong-chen,Pei Dong-jie.Simulation and analysis of dynamic performance of electric vehicle[J].Machinery Design&Manufacture,2012(12):114-116.)
[6]Kahraman A.Load Sharing Characteristics of Planetary Ttransmissions[J].Mechanism and Machine Theory,1994,29(8):1151-1165.
[7]巫世晶,彭则明,王晓笋.啮合误差对复合行星轮系动态均载特性的影响[J].机械工程学报,2015,51(3):29-36.(Wu Shi-jing,Peng Ze-ming,Wang Xiao-sun.Impact of mesh errors on dynamic load sharing characteristics of compound planetary gear sets[J].Journal of Mechanical Engineering,2015,51(3):29-36.)
[8]D. Talbot,A.Kahraman,A.W.Stilwell.Mechanical Power Losses of FullComplement Needle Bearings of Planetary Gear Sets:Model and Experiments[J].Proceedings of the Institution of Mechanical Engineers,Part C:Journal of Mechanical Engineering Science,2016,230(5):839-855.
[9]莫愁,陈吉清,兰凤崇.混合动力汽车动力集成传动机构的设计与分析[J].汽车工程,2016,38(1):36-41+71.(Mo Chou,Chen Ji-qing,Lan Feng-chong.Design and analysis of a power-integrated transmission mechanismfor hybrid electric vehicles[J].Automotive Engineering,2016,38(1):36-41+71.)
[10]Notker A,Joachim B,Franz P.Active Damping of Drive Train Oscillations for an Electrically Driven Vehicle[J].IEEE/ASME Transaction on Mechatronics,2004,9(4):697-700.