A train tube pressure control module for electric locomotive

Abstract

The invention discloses an electric locomotive train pipe pressure control module comprising a valve body, a valve deck, a first valve core, a second valve core, a third valve core and a solenoid valve. The valve deck is arranged on the upper part of the valve body; the first, second and third valve cores are disposed in the valve body; the solenoid valve is installed over the valve body; the electric locomotive train pipe pressure control module is characterized in that an input pressure channel, an output pressure channel, an exhausting channel and an internal pre-control channel are formed in the valve body; position changes of the first, second and third valve cores and control of the solenoid valve enable direction switch of gas between the input pressure channel, the output pressure channel, the exhausting channel and the internal pre-control channel. Logical combination control of an internal air-way channel can be achieved; the electric locomotive train pipe pressure control module is simple and reliable, has high control precision and great stability; train pipe pressure changes can be observed in real time; and quick emergency braking responding speed can be achieved.

Description

technical field [0001] The invention relates to the field of rail train braking systems, in particular to a train pipe pressure control module of an electric locomotive braking system. Background technique [0002] In the traffic design and operation management of rail trains, the problem of train braking has always been a very important and complicated problem. During the operation of the train, in order to ensure safety, various emergencies should be considered to the greatest extent and corresponding measures should be taken. At present, rail train braking methods mainly include direct braking and indirect braking. The so-called direct braking means that the braking electronic control module directly controls the EP switching valve through logic to control the signal volume chamber pressure of the braking relay valve. increase or decrease, pressurization braking, decompression relief, output large flow of compressed air through the relay valve into the brake, to achieve ...

AI Technical Summary

Problems solved by technology

The traditional train pipe control module is composed of multiple functional valves connected in series to meet the needs of pressurization and decompression to the train pipe. Its disadvantage is that it is installed on the pipeline in a distributed manner, with many leakage points and a large space occupation, which is not easy to integrate. No pressure monitoring function

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