面向虚拟编组的列控技术研究

Study on Virtual-Coupling-Orientated Train Control Technique

虚拟编组(Virtual Coupling)是近年来欧洲铁路部门提出的一个新理念,它使用无线通信代替机械联挂,实现不同型号列车的虚拟编组。列车虚拟编组后,行车间隔极大缩短,能够进一步提高线路的运输能力。介绍虚拟编组的研究背景和基本理念,分析既有欧洲列控系统(ETCS)在应用该技术时面临的问题,旨在提出面向虚拟编组的列控技术实现方案。根据列车间隔控制是否由列控系统进行防护,提出两种方案,并描述它们的基本原理和既有ETCS规范需要变动的内容。在基于列控系统防护的方案中,引入相对制动距离的概念,并提出一种基于相对制动距离的限速曲线计算方法,为下一代列控系统的研究提供参考。

Virtual coupling is a new concept put forward by European railway agency in recent years,and it uses wireless communication instead of mechanical couplet to realize marshalling between different types’trains.Virtual coupling can greatly shorten train headway and further improve railway capacity.This paper introduces the research background and basic concept of virtual coupling,analyzes the problems faced by the existing European train control system(ETCS),and aims at proposing the schemes of train control technology for virtual coupling.According to whether train headway control is protected by train control system,two schemes are put forward with their basic principles,and the contents of the existing ETCS specifications need to be modified are illustrated.In the scheme based on train control system,the concept of relative braking distance is introduced,and one method of speed limit curve calculation based on relative braking distance is proposed,which may provide some reference for the next generation train control system.