Train end change holding control circuit, rail transit vehicle and reconnection train

Abstract

The invention discloses a train end change holding control circuit, a rail transit vehicle and a reconnection train. The train end change holding control circuit comprises two holding control units of the same structure; one holding control unit comprises a first relay first contact connected with a power supply; a first contact of the first relay is connected in series with a first contact of a second relay and a first contact of a fourth relay; the first contact of the fourth relay is connected with a coil of a fifth relay; a coil of the fourth relay is sequentially connected with a normally closed contact of a fifth relay and a normally open contact of the fifth relay; one end of a normally open contact of the fifth relay is connected between the first contact of the first relay and the first contact of the second relay; one end of a second contact of the second relay is connected between a normally closed contact of the fifth relay and a normally open contact of the fifth relay; and the second contact of the second relay is connected with a second contact of the second relay of the other holding control unit. According to the invention, only one cab end-changing holding relay of the whole train is ensured to be electrified.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a train end-changing maintenance control circuit, a rail transit vehicle, and a double train. Background technique [0002] At present, there are generally the following ways to build a train monitoring circuit at home and abroad: [0003] The first way, such as figure 1 As shown in the figure, build the monitoring circuit of the whole train, fixedly supply power from A1 terminal, power off from A2 terminal, so that the relay KM of the head train A1 / A2 is energized. [0004] This kind of control circuit is suitable for building a whole vehicle monitoring circuit for a single train, but not suitable for building a whole vehicle monitoring circuit for multi-train reconnection groups. Because during the reconnection process of two trains with multiple formations, if the formation type of the single formation train is: A1+B1+┈+B2+A2, then the two trains are reconnection format...

AI Technical Summary

Problems solved by technology

This method has problems in the train reconnection operation. When two activated trains are connected together, the train must be manually disconnected and activated, and then the train activation knob S01 of the head train must be manually activated to activate the train, so that the entire train can be constructed through train activation. Monitoring circuit; for a train with multiple connections, even if the train is activated through the S01 knob in the driver's cab of a certain coupling end, the whole vehicle monitoring circuit cannot be constructed through the activation of the train

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