重载列车自动驾驶纵向动力学仿真技术研究

Research on Longitudinal Dynamics Simulation Technology of Automatic Driving of Heavy Haul Train

为了保障列车自动驾驶的平稳性,需要充分考虑列车多质点的纵向冲击力问题。文章研究了重载列车纵向动力学相关内容,主要包含对重载列车多质点模型、空气制动模型和车钩缓冲器模型的建模和仿真技术,并在此基础上开发了面向列车自动驾驶的纵向动力学仿真软件。与实际运行的线路数据对比试验结果表明,所开发的重载列车纵向动力学软件能够较准确地模拟列车实际运行工况,对重载列车自动驾驶平稳操纵具有重要的指导价值。

In order to ensure the stability of automatic train operation,the longitudinal impact force of multiple mass points should be fully considered.This paper studied relevant contents of the longitudinal dynamics of heavy-duty train,including the modeling and simulation technology of multi-point model,air brake model and coupler buffer model,and developed the longitudinal dynamics simulation software for automatic driving.Compared with the actual operation,the test results show that the developed longitudinal dynamics software of heavy-duty train can accurately simulate the actual operation conditions of the train,which has an important guiding value for the automatic driving and smooth operation of heavy-duty train.