CBTC系统退行防护机制优化研究  

Research on Optimization of Train Running Backward Protection Mechanism in CBTC

作　　者：孙旺 SUN Wang

机构地区：[1]中国铁道科学研究院集团有限公司通信信号研究所,北京100081

出　　处：《铁道通信信号》2023年第6期53-57,共5页Railway Signalling & Communication

基　　金：中国铁道科学研究院集团有限公司重大课题(2021YJ305)。

摘　　要：针对前车退行情况下的后车安全防护问题,分析前车自身的退行安全防护机制,以及前车从退行开始到停车阶段的最大退行距离计算原理,阐明了后车通过回缩安全防护点来防护前车退行的机制。通过分析最大退行距离的影响因素,提出了系统性能参数优化、连续式等级下基于前车速度的ZC授权优化,以及适用于车车通信场景下的退行防护优化3种方案。在实现退行防护功能的同时,缩短前车与后车追踪间隔,提高运营效率。Aiming at the safety protection problem of the following train in the case of the preceding train running backward,the safety protection mechanism of the preceding train itself and the calculation principle of the maximum running backward distance of the preceding train from the beginning of running backward to the stopping stage are analyzed,and the mechanism of the following train to protect the running backward of the preceding vehicle by retracting the safety protection point is clarified.By analyzing the influencing factors of the maximum running backward distance,three schemes are proposed:system performance parameter optimization,ZC authorization optimization based on preceding train speed under continuous grade,and running backward protection optimization suitable for train-train communication scenarios.While realizing the running backward protection function,the headway between the preceding train and the following train is shortened,and the operation efficiency is improved.

关 键 词：基于通信的列车控制系统 安全制动模型 移动授权 追踪间隔 退行距离 退行防护 

分 类 号：U231.7[交通运输工程—道路与铁道工程]