列车运行监控装置制动距离计算的优化研究  

Research on Optimization of Train Monitoring Device Braking Distance Calculation

作　　者：徐效宁 李辉 XU Xiaoning;LI Hui(Signal and Communication Research Institute,China Academy of Railway Sciences Co.,Ltd.,Beijing 100081,China)

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：《铁道标准设计》2025年第1期185-190,共6页Railway Standard Design

基　　金：中国国家铁路集团有限公司科技研究开发计划项目(J2022G012);北京华铁信息技术有限公司科研项目(2022HT15)。

摘　　要：列车运行监控装置(LKJ)是用于防止列车冒进信号、运行超速事故和辅助司机提高操纵能力的重要行车设备。其中,制动距离计算是LKJ模式控制的基础,直接关系到行车安全和运输效率。对比LKJ不同版本技术规范对于制动距离计算的条文规定,梳理制动距离计算公式及参数的取值依据,分析现行规范下货物列车制动距离过长的原因。通过研究《铁路技术管理规程》《列车牵引计算规程》等相关标准规范及条文说明,对换算摩擦系数、列车换算制动率和制动计算系数等参数进行分析,提出LKJ制动距离计算的优化方案。最后,从制动距离和限速曲线两方面对方案进行仿真计算验证。研究结果表明,该方案有效缩短了LKJ的制动距离,优化了限速曲线,能够提高普速铁路的运输效率。Train monitoring device(LKJ)is an important equipment used to prevent train overrunning signal,over speeding accident and assist drivers to improve control ability.Braking distance calculation is the basis of LKJ mode control,which is directly related to traffic safety and transportation efficiency.This paper compares the provisions of different versions of LKJ technical specifications for the calculation of braking distance,summarizes the basis of calculation formula of braking distance and parameters,and analyzes the reasons for the excessively long braking distance of freight trains under the current specifications.By studying the relevant standards and provisions such as“Technical Management Regulations for Railway”and“Train Traction Calculation Regulations”,the parameters such as converted friction coefficient,train conversion braking rate and braking calculation coefficient are studied,and an optimization scheme of LKJ braking distance calculation is proposed.Finally,the simulation calculation of the scheme is verified in terms of the braking distance and speed limit curve.The results show that the proposed scheme can effectively shorten the braking distance of LKJ and optimize the speed limit curve,so as to improve the transportation efficiency of the general speed railway.

关 键 词：列车运行监控装置 制动距离 换算摩擦系数 列车换算制动率 制动计算系数 

分 类 号：U284.48[交通运输工程—交通信息工程及控制]