Compared with the traditional fuel vehicle,the structure of the transmission system of hybrid electric vehicle is more complex,and the torsional vibration of its transmission system under the complex excitation of multiple power sources is more prominent.In this paper,for a P2 hybrid electric vehicle,considering the engine,motor,composite planetary gear mechanism,clutch,reducer,differential and half shaft,the centralized mass model of hybrid electric vehicle transmission system is established with Simcenter AMESim software.On this basis,the natural frequency and vibration mode of the transmission system under different operating conditions are analyzed,and the relationship between the excitation source frequency and transmission system natural frequency is studied.The influence of the first spring stiffness and the second contact stiffness of the clutch on the natural frequency of the transmission system is simulated and analyzed.The stiffness parameters of the clutch are optimized so that the resonant rotating speed of the transmission system is far away from the common working area of the excitation source.
关键词
P2构型混合动力汽车/传动系统/固有频率/共振转速/离合器刚度
Key words
P2 hybrid electric vehicle/transmission system/natural frequency/resonance speed/clutch stiffness
维普
万方数据