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根据某型五速自动变速器具体结构,结合换挡过程中系统的动态特性,应用拉格朗日方法建立基于离合器输入扭矩的行星轮系数学模型.依据换挡时离合器充油过程,使用克服零速区域的数值模拟问题的Woods模型作为离合器结合过程扭矩传递模型.基于Matlab/Simulink软件,搭建换挡过程模型.仿真结果表明:相邻档位离合器充油重叠方式的差别直接影响车辆换挡品质,可为进一步分析离合器结合油压对矿用车辆换挡品质的影响提供合理的仿真模型.
According to the specific structure of a five-speed automatic transmission and the dynamic characteristics of the system during gear shifting, a mathematical model of planetary gear train based on clutch input torque is established by Lagrange method.According to the process of clutch oil filling during gear shifting, Speed domain numerical simulation of the Woods model clutch engagement process torque transfer model based on Matlab / Simulink software to build the shift process model.The simulation results show that: the adjacent gear clutch oil filling overlap directly affect the vehicle shift quality , Which can provide a reasonable simulation model for further analyzing the influence of clutch combined hydraulic pressure on the shift quality of mining vehicles.