Brake system of CRH (China railway high-speed) and brake method thereof

Abstract

The invention provides a brake system of CRH (China railway high-speed) and a brake method thereof. The brake system of the CRH comprises brake instruction equipment, a brake control unit, a basic brake device, a power brake device, and an air source device, wherein the brake instruction equipment is used for sending out a brake instruction; the brake control unit is used for receiving the brake instruction, and distributing the brake power; the basic brake device is used for executing the air brake; the power brake device is used for executing the non-friction brake; the air source device is used for providing compressed air for the brake system and other air utilization equipment. The brake method is used for the brake system of the CRH. The brake control method has the advantages that by favorably distributing the brake force, when the power brake of the CRH is sufficiently utilized, and the air brake distribution of the CRH and a trailer is also performed; by properly setting the numbers of basic brake devices of CRH and trailer in the brake system, the brake force which is applied to each set of basic brake device is uniform; the overhauling, maintenance and economy of basic brake are favorably realized.

Description

technical field [0001] The invention relates to the technical field of rail vehicle control, in particular to a braking system capable of evenly distributing braking force in a high-speed EMU. Background technique [0002] The main function of the braking system is to reduce the speed of the train, stop it or move at a constant speed by means of friction or other methods. The braking system of the EMU mainly adopts the computer-controlled direct electro-pneumatic braking system, which mainly includes braking command equipment, braking control system, foundation braking device, dynamic braking device and air source system, etc. [0003] In the existing EMU braking system, when the EMU is braking, the braking control system manages the braking force according to the braking command issued by the braking command device, and controls the basic braking device and the dynamic braking device to perform braking. Function, the air source system provides the compressed air needed in ...

AI Technical Summary

Problems solved by technology

[0005] However, under normal circumstances, the sum of the dynamic brake and the air brake of the trailer can meet the braking force requirements of the whole train. The above-mentioned method leads to the frequent use of the trailer air brake, and the less or almost no use of the motor car air brake. , which in turn causes the wear and tear of the brake discs and pads of the trailer to be much greater than that of the motor car, and the maintenance difficulty of the brake discs and pads of the trailer is much higher than that of the motor car, which is not conducive to the maintenance and economical efficiency of the basic brake.

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