摘要
[目的]当前,地铁列车在采用ATO(列车自动驾驶)模式正线运行并完成站点停车后,轨道交通信号系统需确认列车所有制动已施加信号被优先采集,以确保乘客安全,随后方可发出车门开启指令。若无法发出开门指令,车门系统将无法实现联动开启,这对列车正线运营造成了显著影响。因此,有必要寻求新的优化方案用以提升列车运营服务质量。[方法]以宁波轨道交通4号线列车在正线运营过程中因制动未施加而导致车门无法联动开启的实际故障案例为研究对象,从列车开门逻辑、制动控制原理、故障上报逻辑及数据等多个维度进行深入剖析,旨在探索有效的优化方案。同时,结合多次试验,对优化方案的可行性与可靠性进行验证。[结果及结论]在制动系统方面,通过优化制动软件,改进了故障上报机制,显著降低了故障上报率;同时,完善了故障情况下的制动施加机制,有效减轻了该类故障对运营造成的负面影响。在LCU(逻辑控制单元)方面,优化后的LCU软件改进了对所有制动已施加信号的输出逻辑,成功避免了因制动问题导致的列车车门无法联动开启的故障。多次试验结果表明,该优化方案有效降低了故障影响,显著提升了地铁列车运营的可靠性及服务质量,具有较高的实际应用价值。
[Objective]Currently,when metro trains operate on mainline tracks under the ATO(automatic train operation)mode and stop at stations,the rail transit signaling system must confirm that all braking signals are applied previously before issuing a door-opening command,which ensures passenger safety.Failure to issue this command would prevent the door system from opening in coordination,significantly impacting mainline train operation.Therefore,it is essential to explore new optimization solutions to enhance train operational service quality.[Method]Using a real fault case on Ningbo Rail Transit Line 4 as research object,where a train door failed to open in coordination due to unapplied braking during mainline operation,the problem is analyzed from multiple dimensions,including train door-opening logic,braking control principles,fault reporting logic,and data.The goal is to develop effective optimization solutions.The feasibility and reliability of the proposed solutions are verified through multiple trials.[Result&Conclusion]In the braking system,the optimization of braking software improves the fault reporting mechanism,significantly reducing the fault reporting rate.Additionally,enhancements to the braking application mechanism in fault scenarios effectively mitigate the negative impact of such faults on operations.For the LCU(logic control unit),the optimized software improves the output logic of the′all braking applied′signal,successfully preventing door coordination failures caused by braking issues.Results from multiple trials demonstrate that the optimization scheme significantly reduces fault impacts,improves the reliability of metro train operations,and enhances service quality,showcasing a high practical value.
作者
黄慧建
蒲安会
黄行
倪展鹏
胡玉洁
付亮
HUANG Huijian;PU Anhui;HUANG Xing;NI Zhanpeng;HU Yujie;FU Liang(Operation Branch of Ningbo Rail Transit Group Co.,Ltd.,315100,Ningbo,China)
出处
《城市轨道交通研究》
北大核心
2025年第3期226-230,共5页
Urban Mass Transit
关键词
地铁列车
制动未施加
制动控制原理
车门联动
软件优化
可靠性
metro train
unapplied braking
braking control principle
train-door linkage
software optimization
reliability
作者简介
第一作者:黄慧建,高级工程师,171348912@qq.com;通信作者:蒲安会,工程师,550739994@qq.com。
