城市轨道交通全自动运行列车跳跃模式研究

杨利强1张爱平2

Research on Skip Mode of Trains in Urban Rail Transit FAO System

YANG Liqiang1ZHANG Aiping2
摘要:
[目的]FAO(全自动运行)系统需通过跳跃模式实现未精确停车时的位置修正,因该模式下信号系统接口与列车牵引制动系统接口设置不同存在跳跃失败风险,需对此模式进行研究。[方法]从列车跳跃模式的定义出发,分析其功能需求。结合我国某FAO项目实例,介绍现有跳跃模式方案并提出优化建议。对既有方案与优化方案的安全性和可用性进行对比分析。[结果及结论]优化方案将轻制动力平均分配至每节车辆的第二个转向架上,减少了第一个转向架静摩擦力的影响,从而减少了静摩擦力对整车制动力的影响;同时该方案加大了列车启动牵引级位,从理论计算和实车验证方面充分保证了列车能够在各种条件下跳跃启动,极大增加了FAO系统的可用性。
Abstracts:
[Objective] The FAO (fully automated operation) system must utilize a skip mode to correct train position deviations when precise stopping is not achieved. Due to differences in interface configurations between the signaling system and the train traction/braking system under this mode, there is a risk of skip failure, necessitating dedicated in-depth research. [Method] Starting from the definition of train skip mode, the study analyzes its functional requirements. Using a FAO project in China as a case study, a comparative analysis is conducted between the existing and optimized schemes in terms of safety and availability. [Result & Conclusion] The optimized scheme distributes light braking force evenly to the second bogie of each car, thereby reducing the influence of static friction from the first bogie and mitigating its impact on the overall train braking force. Meanwhile, the scheme increases the traction level for train startup, ensuring—both through theoretical calculation and real-vehicle validation—that the train can successfully initiate movement under various conditions. This significantly enhances FAO system availability.
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