Braking control unit for high-speed motor train units and urban rail transit vehicles

Abstract

The invention relates to a braking control unit for high-speed motor train units and urban rail transit vehicles. The braking control unit comprises an empty electric converting valve, an emergency valve, an empty and load vehicle valve and a relay valve, wherein the empty electric converting valve is connected with the emergency valve through a pipeline, the emergency valve is connected with the empty and load vehicle valve through a pipeline, the empty and load vehicle valve is connected with the relay valve through a pipeline, the braking control unit also comprises a connecting plate and an integrated air path plate arranged on the connecting plate, the connecting plate is arranged on a hanging frame arranged at the bottom of a vehicle body, the empty electric converting valve, the emergency valve, and the empty and load vehicle valve and the relay valve are respectively arranged on the integrated air path plate. The braking control unit has the advantages that the modularized design is adopted, the empty electric converting valve, the emergency valve, the empty and load vehicle valve and the relay valve are integrated on the integrated air path plate, the braking control unit is arranged on a hanging frame arranged at the bottom of a vehicle body in an integral hoisting mode, higher interchangeability is realized, and the maintenance is convenient.

Description

technical field [0001] The invention relates to a braking control system of a rail vehicle, in particular to a braking control unit for a high-speed EMU and an urban rail transit vehicle. Background technique [0002] High-speed EMUs and urban rail transit vehicles mainly adopt microcomputer-controlled direct electro-pneumatic braking system, which includes braking control system, basic braking system, air source system and auxiliary air supply components, etc. Among them, the braking control system It is mainly composed of brake control unit and electronic control unit. [0003] The brake control unit is the core of the rail vehicle braking system, the pneumatic control component of the brake control system, and the actuator for electro-pneumatic braking. The air-to-electric conversion valve is converted into the corresponding pre-control pressure signal, and the corresponding load compensation correction is performed through the empty-load vehicle valve during emergency b...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the above-mentioned deficiencies of the existing control unit in the braking process, such as inaccurate and stable control of the braking force and inconvenient maintenance, and provides a control unit that can meet the emergency braking action control requirements of the microcomputer-controlled direct-through electro-pneumatic braking system. Brake control unit for high-speed EMUs and urban rail transit vehicles. The brake control unit has high interchangeability and is easy to maintain. It can realize air spring pressure, brake cylinder pressure, pre-control pressure, and air storage cylinder pressure. carry out testing

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