轨道交通列车制动系统离散性造成ATO停车精度问题的分析及解决

Analysis and Solution to Rail Transit Train Parking Inaccuracy Caused by Discreteness of Train Braking Systems in Automatic Train Operation(ATO)Mode

轨道交通信号系统采用基于通信的列车自动控制系统,列车根据实时的移动授权距离进行ATO驾驶。介绍了从列车制动系统时间和离散性的角度,对具有不同离散性的列车制动系统由于同一ATO控制命令响应偏差造成的ATO停车精度不准的问题,分析了ATO模式停车精度的优化设计,并在实际运营线路上进行了测试验证。测试结果表明,当遵守设计约束和改变ATO相关参数时,列车的停车精度得到了较大的提高。

When the rail transit signal system adopts the automatic train control system based on communication,trains run in ATO mode according to the real-time authorized movement distance.Train inaccurate parking would arise due to the different response time of train braking systems to the same ATO control command.The optimal design to improve the train parking accuracy in ATO mode is analyzed and tested on an actual operation line.The test results show that the train parking accuracy will be greatly improved by adjusting the relative ATO parameters within the design constraints.