重载自动驾驶机车长大下坡空电联合制动运用研究  

Electro-pneumatic Brake for Heavy Haul Locomotive During Automatic Driving at Long Downgrade Segment

作　　者：姜正 王瑞 杜海宾 于健 陈雪 JIANG Zheng;WANG Rui;DU Hai-bin;YU Jian;CHEN Xue(CRRC Dalian Institute CO.LTD.,Dalian 116023,Liaoning,China)

机构地区：[1]中车大连机车研究所有限公司,辽宁大连116023

出　　处：《交通运输系统工程与信息》2023年第3期311-318,共8页Journal of Transportation Systems Engineering and Information Technology

基　　金：中国中车股份有限公司重点科研计划项目(2021CYB133)。

摘　　要：重载货运列车的开行促进了铁路运输运量的增长,而如何确保重载货运列车在长大下坡道的运行安全,特别是在连续长大下坡道的运行安全成为备受关注的焦点。本文以自动驾驶系统控制的HXD2重载机车在长大下坡道运行时的速度控制作为研究中心,经过理论计算推演和实际线路运行测试,针对不同线路场景提出重载机车自动驾驶系统长大下坡运行时以列车空气制动运用为主,机车动力制动(电制动)运用为辅的空电联合控速降速运用控制策略。采用该控制策略的HXD2重载自动驾驶机车(平均牵引吨位大于3900 t),在跨越秦岭地区的西康铁路线路1年多近4万km的良好运用测试效果表明,该控制策略的应用有效保证了自动驾驶模式下重载列车在长大下坡道的运行稳定和运输安全,同时为机车司机提供了有效的空气制动操控指导。The railway transport amount has been promoting with the use of heavy haul freight train,which also brings safety risks.As time went on,such potential safety matters have received wide-spread attention.It is known that the long heavy downgrade railways are the most dangerous part for heavy haul freight train,especially on the continuous long heavy downgrade section.It was found that the key to resolve this problem is to control the speed of the train.This paper focuses on speed control and proposes an electro-pneumatic braker application method,which is based on air brake and with power brake supplement.The paper proposes the method and applies it into the automatic train operation system,which have been used on heavy haul freight HXD2 locomotive.Through the practical tests in QinLing region along the XiKang railway,the running tests performed are more than 40000 kilometers in one year,while the train draw average qualities no less than 3900-ton.Eventually,the method obtains the expected results and the proposed method could give certain guidelines for user.What is more important,this method can effectively ensure the safety and steady for locomotive during automatic driving,especially when the train running in the long heavy downgrade section.

关 键 词：铁路运输 长大下坡速度控制 空电联合制动 重载机车 自动驾驶系统 西康铁路 

分 类 号：U268.6[机械工程—车辆工程]