基于机车自动驾驶系统的列车制动限速技术研究  

Research on technical approach for train braking speed limits based on locomotive automatic operation system

作　　者：蔡永辉 周文伟 CAI Yonghui;ZHOU Wenwei(China Railway Xi'an Group Co.,Ltd.,Xi'an,Shaanxi 725005,China;Zhuzhou CRRC Times Electric Co.,Ltd.,Zhuzhou,Hunan 412001,China)

机构地区：[1]中国铁路西安局集团有限公司,陕西西安725005 [2]株洲中车时代电气股份有限公司,湖南株洲412001

出　　处：《机车电传动》2024年第5期34-40,共7页Electric Drive for Locomotives

摘　　要：货物列车在下坡道通过空气制动控制其减速及停车过程中,遇到每百吨列车重量换算闸瓦压力值较低的情况,如果未及时降低列车制动限速并控制其限速运行,可能会出现超速和冒进的风险。为解决该问题,文章设计了基于机车自动驾驶系统的列车制动限速计算方法,并以列车制动限速曲线为基础,实现列车运行曲线规划、驾驶控制和安全防护,保证了列车在自动驾驶模式下的运行安全。现场应用结果表明,与人工驾驶相比,该技术提升了列车运行效率。The deceleration and stopping process of freight trains on downslope sections through air braking,may encounter low converted pressure values of the brake shoes per 100 tons of train weight.Failure to timely reduce train speeds below the braking limit and control train operation within the speed limit could potentially result in hazards such as overspeeding and overrunning.To address this challenge,a calculation method for train braking speed limits was designed,tailored for the locomotive automatic operation system.Based on the train braking speed limit curve,functions for train operation curve planning,driving control,and safety protection were de-veloped,which ensured the operational safety of trains in the automatic operation mode.Results from practical applications show the ef-fectiveness of the proposed approach in improving the efficiency of train operation compared with manual driving.

关 键 词：机车自动驾驶 列车制动限速 货物列车 闸瓦压力 

分 类 号：U268.4[机械工程—车辆工程]