Circuit for reliably outputting brake release applying state for rail transit vehicle

Abstract

The invention discloses a circuit for reliably outputting a brake release applying state for a rail transit vehicle. The circuit comprises a brake release train line and a brake applying train line which penetrate through the whole vehicle, each vehicle is provided with a remote input and output module, a brake release relay corresponding to the bogie and a bogie isolation valve. The remote input module collects the state of the brake release relay and participates in logic control, the signal is connected in series with the contact of the adjacent rack brake release relay and then connected to the contact of the current rack brake release relay in parallel, and the problem that a train cannot obtain the whole train brake release signal due to relay faults is effectively avoided; a bogie isolating valve is connected in parallel with a current bogie brake release circuit, so that the problem that a whole vehicle brake applying signal cannot be output due to the fault of a single bogie brake release relay is solved; the problem that a whole vehicle brake applying signal cannot be output due to faults of a single-compartment bogie brake release relay and a bogie isolation valve is solved by configuring and connecting the vehicle isolation valve in parallel.

Description

technical field [0001] The invention relates to a circuit design for reliably outputting brake relief / applying states of rail transit vehicles, and belongs to the technical field of monitoring the state of brake relief and application of rail vehicles. Background technique [0002] Reliable output of train brake application / release status is extremely important for the safe and reliable operation of rail vehicles. The current circuit design for brake application / release status output is mainly: [0003] 1. Through a set of normally open auxiliary contacts of the brake relief relay connected in series on the train line, all the brake relief relays at both ends of the train are driven to output the brake relief signal of the whole train. [0004] 2. Through a group of normally closed contacts of the brake relief relay connected in series on the train line, all the brake application relays at both ends of the train are driven to output the brake application signal of the whole...

AI Technical Summary

Problems solved by technology

[0006] 1. When the brake relief relay contacts are single-point faulty, the train cannot output the vehicle brake relief signal;

[0007] 2. When the contact of the brake release relay and the isolation valve of the current bogie fail, the train cannot output the brake application signal of the whole vehicle

[0008] When the above two situations occur, the safety and reliability of train operation cannot be fully guaranteed

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