High speed train braking system and braking method thereof

A high-speed EMU and braking system technology, applied in the high-speed EMU braking system and its braking field, can solve problems such as mismatch, poor braking stability, increased wear of brake discs and brake pads, etc., to reduce Wear, smooth braking, and improved economical use

Active Publication Date: 2013-09-18
CRRC QINGDAO SIFANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will cause the actual output braking force to be inconsistent with the design braking force, and the actual braking force will be much greater than the design braking force, resulting in poor braking stability and increased wear of the brake disc and brake pads

Method used

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  • High speed train braking system and braking method thereof
  • High speed train braking system and braking method thereof
  • High speed train braking system and braking method thereof

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Embodiment Construction

[0038] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0039] Such as figure 1 As shown, the high-speed EMU braking system mainly includes a braking controller 1 , an information control device 2 , a braking control device 3 and a braking execution device 4 .

[0040] The brake controller 1 is installed in the cab and controlled by the driver. The information control device 2 is distributed in each vehicle to receive the braking command issued by the brake controller 1 and transmit the braking command to the braking control of each vehicle. Device 3, the BCU in the brake control device 3 collects speed information and load information, and the BCU (Brake Control Unit) in the brake control device 3 performs braking force calculation to calculate the air required for train braking Braking force, and finally generate BC pressure (that is, brake cylinder pressure) P BC , deliver the compressed air to ...

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Abstract

The invention relates to a high speed train braking system and a braking method thereof. The braking method comprises the following steps of classifying fraction coefficient values into multiple sections according to a speed range and prestoring the classified fraction coefficient values into a BCU (Braking Control Unit); sending out a control instruction by virtue of the BCU; calculating air braking force required for train braking by virtue of the BCU; and finally generating a PBC (Pressure of Braking Control), and conveying hyperbaric air to a braking execution device, wherein the braking execution device is used for executing braking or parking. The BCU adopts a fraction coefficient which is not a constant average fraction coefficient, but is a sectional fraction coefficient value based on different speed ranges and braking levels, thereby being beneficial to the matching of a practical output braking force and a designed braking force; a condition that the practicable braking force is far greater than the designed braking force is avoided, so that the braking is smooth and steady; and meanwhile, the abrasion of a braking disc and a brake pad can be reduced, and the use economical efficiency of basic braking is improved.

Description

technical field [0001] The invention relates to a high-speed EMU braking system and a braking method thereof. Background technique [0002] The braking system is the guarantee for the safety of high-speed EMUs. The performance of the braking system design will affect the reliability, durability and economy of the braking equipment, as well as the ride comfort of passengers. [0003] When the EMU is braking, the control unit BCU of the braking system receives the braking level information, speed information and load information from the vehicle information control device, and calculates the air braking force required for train braking; The final application of power is through the pressure air calculated by the BCU output by the brake control device to the pneumatic clamp, and then the brake pads are driven to rub against the brake discs on the wheels to achieve braking or parking of the train. [0004] When the BCU calculates the air braking force actually required by the t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/66
Inventor 徐磊梁建英师小龙杨廷志周建乐
Owner CRRC QINGDAO SIFANG CO LTD
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