地铁列车站台精确停车辅助系统研究
2021-07-05尤星达朱琳
尤星达 朱琳
摘 要:随着轨道交通管理技术与手段提升与加强,更加提倡运营管理与行车组织精细化管理。列车停靠的精确度直接影响列车运行组织的质量和安全性,也影响乘客乘车的舒适性。文章分析了列车停站误差原因,创新性地提出了一种地铁列车站台精确停车的辅助系统,分别针对ATO模式和手动模式下的列车停靠问题给出了相应的解决方案。当列车处于ATO模式,系统在列车制动模块中充分考虑因乘客上下车而动态变化的车厢质量;当列车处于手动驾驶模式,在站台上设置辅助进站引导系统,根据列车运行位置与速度,及时向司机显示最佳进站速度(定速点)。通过以上两个解决方案,实现辅助地铁列车站台精确停车,从而减少列车延误风险。
关键词:地铁列车;辅助停站;精确定位;系统构建
中图分类号:F570 文献标识码:A
Abstract: With the improvement and strengthening of rail transit management technology and means, operation management and fine management of traffic organization are more advocated. The accuracy of train parking directly affects the quality and safety of the train operation organization, as well as the comfort of passengers. This paper analyzes the causes of train stop error, creatively puts forward an auxiliary system for accurate parking of subway train platform, and gives the corresponding solutions to the problem of train parking in ATO mode and manual mode respectively. When the train is in ATO mode, the system fully considers the dynamic change of carriage quality due to passengers getting on and off passengers in the train braking module; when the train is in manual driving mode, an auxiliary station entry guidance system is set on the platform, and the best entering speed (fixed speed point) is displayed to the driver in time according to the running position and speed of the train. Through the above two solutions, the accurate parking of the auxiliary subway train platform can be realized, thus the risk of train delay can be reduced.
Key words: subway train; auxiliary stop; accurate positioning; system construction
0 引 言
城市軌道交通车辆普遍采用自动驾驶模式(ATO),自动实现列车的牵引和制动,在保证列车高效运行的同时,能够降低司机的工作强度。ATO系统的核心功能之一便是站台自动停车,为了实现这个功能,ATO系统需要车载计算机、信号系统、轨道信标等部件共同完成速度计算、制动力分配等操作,而在实际停站过程中,列车速度计算准确性不高,停车偏差时有发生。例如,广州地铁5号线列车在客流高峰期间经常出现停车偏差达到了0.5m,迫使列车不得不后退重新对标[1],这将直接影响列车的准点运行。与此同时,由于车站站台基本都配备了屏蔽门系统,这就要求ATO系统在实现站台自动停车时尽可能准确地对标屏蔽门的中心线,才能实现精确停车。……
