Pneumatic-electric braking system and Pneumatic-electric conversion and control method of freight train

Abstract

The invention relates to an air pressure braking system. The air pressure braking system comprises a controller, an air compressor, an air supply pipe, a pressure/air power generation device, a pneumatic motor, a pneumatic power generation device, a storage battery and a storage battery management system, wherein the controller comprises a micro-processing control unit and a control electromagnetic valve. The air pressure braking system is mainly applied to a pneumatic-electric conversion and control method of a freight train. According to the pneumatic-electric conversion and control method of the freight train, an air braking signal of the air pressure braking system is converted into a voltage signal; energy is stored by using the storage battery management system; power is supplied toa control device by using an energy storage system; and therefore, the braking of the freight train is accurately controlled.

Description

technical field [0001] The present invention relates to the field of aerodynamic power generation control of freight trains, to the field of electronically controlled air brakes, in particular to an air-electric brake system and an air-to-electricity conversion and control method for freight trains, and in particular to using the original pressure of an air supply pipe for power supply , applied to train electronically controlled air brakes. Background technique [0002] Railway freight is developing in the direction of fast freight. In order to ensure the safety and efficiency of railway transportation, the requirements for vehicle braking systems are also increasing. [0003] In the past, railway freight trains have always used the air brake system, but in today's express freight trains, the air brake system has shown its shortcomings: longer braking distance, insensitive adjustment of empty freight, lack of vehicle anti-skid, etc. Equipment, as well as the excessive long...

AI Technical Summary

Problems solved by technology

[0003] In the past, railway freight trains have always used the air brake system, but in today's express freight trains, the air brake system has shown its shortcomings: longer braking distance, insensitive adjustment of empty freight, lack of vehicle anti-skid, etc. Equipment, as well as the excessive longitudinal impulse between vehicles caused by the inconsistency of braking between vehicles, in addition, it will cause excessive wear or premature damage of wheels, brake shoes, couplers, drawbars, etc., which will eventually lead to higher maintenance and repair of vehicles. Lower cost of use and lower truck capacity

These all show that the traditional air brake system is difficult to use on express freight trains

[0004] Existing mechanical control is difficult to achieve the anti-skid of fast freight trains under high-power braking, the adjustment of braking force when there is a huge difference between the load of empty and heavy vehicles, and the requirements for improving the braking performance of mixed trains and long trains. Therefore, it is urgent electronic control is required

However, at present, most freight trains do not have their own power supply, and it is difficult to implement cable power supply based on fixed marshalling, which cannot provide the required low-power electric energy for the on-board control system, which severely limits the development of brake control technology.

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