Locomotive and brake cylinder pressure control system and method during emergency braking

Abstract

The invention discloses a locomotive and a brake cylinder pressure control system and method during emergency braking of the locomotive; during emergency braking of the locomotive, at least three different pressure control channels form the brake cylinder pressure, a pure air first distribution valve is adopted as a first channel, and the first distribution valve is a mechanical distribution valve and does not need to be controlled by a controller; therefore, the influence of electromagnetic interference is avoided, and even if the BCU breaks down, the pressure can be normally generated and conveyed to the first port of the two-way valve; the second channel is controlled by the BCU, so that the pressure of the brake cylinder can be accurately controlled; the third channel is controlled by the BCU and the brake controller at the same time and can also be directly controlled by the brake controller, the brake cylinder pressure can be formed outside the control of the BCU, and reliability and safety during emergency braking of the locomotive are greatly improved.

Description

technical field [0001] The invention belongs to the technical field of locomotive braking control, and in particular relates to a brake cylinder pressure control system and method during emergency braking of a locomotive and its braking system. Background technique [0002] The locomotive braking machine (or locomotive braking system) is a key system for locomotive speed regulation and parking, and it is also a control system involving safety. In order to ensure the braking safety of the locomotive, when the braking system brakes in an emergency, it is necessary to ensure that the brake cylinder of the locomotive generates pressure to achieve a safe stop. Since the brake cylinder pressure generated by the locomotive brake involves multiple components, there is a phenomenon that the brake cylinder pressure cannot be generated due to component failure. Contents of the invention [0003] The object of the present invention is to provide a brake cylinder pressure control syst...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a brake cylinder pressure control system and method for a locomotive and its emergency braking, in order to solve the problem that the brake cylinder cannot generate pressure due to the failure of the brake system components. The present invention designs a multi-redundant The advanced control system and method ensure that after some components fail, the brake cylinder pressure can be generated through other redundant channels to ensure that the locomotive can stop safely

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