Axle control type brake control system and rail transit vehicle

Abstract

The invention relates to an axle control type brake control system and a rail transit vehicle, the axle control type brake control system comprises an electronic brake control unit and a pneumatic brake control unit, the pneumatic brake control unit comprises a main gas circuit, and an emergency brake adjusting module, a service brake and anti-skid adjusting module and a remote relieving module are arranged on the main gas circuit. The emergency braking adjusting module comprises a pressure reducing valve and a first electric proportional valve, the service braking and anti-skid adjusting module comprises a second electric proportional valve, and the remote relieving module comprises a first electromagnetic valve and a second electromagnetic valve. The air inlet end of the main air path is used for being connected with a main air pipeline, and the air outlet end of the main air path is used for being connected with a basic braking unit. Precise control over the braking force of the train can be achieved, the service life of each valve in the control system is longer, the number of parts is smaller, the size is smaller, the system is more simplified, the weight is lighter, the response time of braking control can be greatly prolonged, and train operation can be safer.

Description

technical field [0001] The invention relates to the technical field of rail transit such as urban rail transit and intercity rail transit, and in particular relates to an axle-controlled braking control system and a rail transit vehicle. Background technique [0002] The current subway brake control architecture can be divided into two types, one is the vehicle control control method (hereinafter referred to as the vehicle control platform), and the other is the rack control control method (hereinafter referred to as the rack control platform). Due to its early application and relatively mature technology, the vehicle control platform currently occupies the majority of urban rail vehicles before 2010. With the introduction of the brake control system of the rack control platform represented by Knorr-Bremse and the Academy of Iron Science, vehicles in major cities in the subway have been widely used, and gradually become the main vehicle brake control platform. Compared with...

AI Technical Summary

Problems solved by technology

Due to the dual logic of the air control valve and the solenoid valve, not only many components are required, the cost is high, and the system is complicated

At the same time, a pressure reducing valve is required to adjust the required pressure, and a throttle valve is required to adjust the required flow rate. Many components in this traditional pneumatic control system need to be manually adjusted in advance, and it is difficult to replace them on site if they need to be changed later. very big

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