单元重载列车在三显示长大下坡道的技术方案

Technical Scheme of Heavy Haul Train Unit Running in Long Steep Grade Track with Three Aspect Automatic Block

为彻底解决单元重载列车在自动闭塞三显示长大下坡道运行时,不能满足黄灯前控速和红灯前停车的安全隐患,通过在区间编码电路中增加L2、L3信息码,确保机车乘务员可以判断出列车运行前方至少4个闭塞分区的空闲情况,提高三显示区间重载列车通过能力。

To solve the issue that a heavy haul train unit running down a long steep grade under the control of a three-aspect automatic block cannot meet the requirements of controlling its speed before yellow light and stopping before red light,two codes of L2 and L3 are added into both the coding circuit for the station and that for the section down the long steep grade so as to assist the locomotive crew in judging whether at least four blocks in advance of the train are occupied or not.The addition of extra codes can enhance the carrying capacity for heavy haul trains of a section with three-aspect automatic block.