地铁车辆增加硬线控制模式的设计与实现

Design and Implementation of Added Hard Wire Control Mode for Metro Vehicles

目前地铁车辆牵引和制动的指令都是通过网络传输,当网络出现故障时,列车只能降速运行,这极大地影响了正线运营的效率。为此,在既有成熟的地铁车辆平台上,增加一些硬线,当网络故障时,列车仍然能够采用硬线控制模式正常运行,可以实现电空混合制动,不会对正常运营造成影响,从而进一步提高了列车的可靠性。这种方案已经在某地铁线路上正式应用。

At present,metro vehicle traction and braking commands are transmitted through the network.When a train network has a failure,the train will enter the emergency traction mode,resulted in train low speed operating,which greatly affects the efficiency of the line operation.Based on the above considerations,the existing mature metro vehicle platform with proven operation has added the number of hard wires.When the network fails,the train will still use the hard wire control mode,realizing the normal operation of hybrid electric-air braking,without affecting the normal operation,so as to further improve the reliability of the train.This solution has been used on some metro lines.