上海地铁17号线列车空气制动不缓解诊断模型研究

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中图分类号： U260.13+8 文献标志码：B doi：10.20214/j.cnki.zhgdjt.2025.03.004

Study on the Air Braking Non-release Diagnosis Model for Trains of Shanghai Metro Line 17

CHEN Chao

（Vehicle Branch of Shanghai Metro Maintenance Co.，Ltd.，Shanghai 2Oo237，China）

Abstract：The braking system intranet data collection module has been installed on the trains of Shanghai Metro Line 17 to realize the collection of CAN network data of the train braking system. Meanwhile， combining the Internet of Vehicles systemof Shanghai metro，the braking data have been remote collected， transmitted and analyzed.The article takes the common non-release fault of air braking in the metro train braking system as the object and studies the response time to braking application and release of the braking system and the numberof actions per kilometerof the solenoid valve in the EP valve.Through the mechanism analysis of the equipment operation principle，thedevelopment sequence of the fault has been judged according to the operation principle，including the analysis of theoretical model，the analysis of logic model，etc.，and finallythe braking non-release diagnosis model has beenbuilt up.Inaddition，the actualoperation data on the response time to braking application and release and the number of actions of the solenoid valve have been analyzed to demonstrate the efectivenessof the braking non-release model and achieve the early warning of this type of potential fault，thus providing a feasible solution for reducing the frequency of occurrence of the braking non-release fault and improving the reliability of the core components of the train braking system.

Keywords：metro train；EP valve；braking non-release；data collection

制动不缓解是轨道交通领域中的一个严重故障，属制动系统异常，导致在制动指令解除后，制动器仍保持部分或全部激活的状态，从而影响列车的正常运行和安全性[1]

近年来，随着车辆智能运维系统的兴起，研究人员开始更多地关注如何通过数据分析和预测模型来提高制动系统的可靠性和安全性。（剩余5549字）