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A system, method and train for maintaining brake relief of a train

A technology for maintaining braking and trains. It is applied to braking safety systems, brakes, braking action starting devices, etc. It can solve the problems of slipping, impulsive running, and inability to guarantee driving safety, so as to avoid slipping and impulsive running. The effect of avoiding impulsive running and ensuring driving safety

Active Publication Date: 2020-06-23
CRRC QINGDAO SIFANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the fact that there are slopes on many train lines, the current control logic for the train to maintain the brake release is easy to cause the train to slip and run impulsively at the moment of the brake release, and the driving safety cannot be guaranteed.

Method used

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  • A system, method and train for maintaining brake relief of a train
  • A system, method and train for maintaining brake relief of a train
  • A system, method and train for maintaining brake relief of a train

Examples

Experimental program
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Effect test

Embodiment 1

[0041] Embodiment 1 of the present application provides a system for maintaining brake relief of a train, which will be described in detail below with reference to the accompanying drawings.

[0042] see figure 1 , which is a schematic diagram of a system for maintaining brake relief of a train provided in Embodiment 1 of the present application.

[0043]The system 100 for maintaining brake relief of a train provided in this embodiment includes: a brake control unit (BCU, BrakeControl Unit) 101 , a vehicle controller 102 and a brake device 103 .

[0044] The vehicle controller 102 determines that when the traction force of the vehicle is greater than the traction force threshold, it sends a first holding brake release instruction to the brake control unit 101 through the network.

[0045] The traction force threshold value is the sum of the sliding force when the line where the train is located reaches the preset slope when the load is overcrowded and the static friction forc...

Embodiment 2

[0059] Embodiment 2 of the present application also provides another system for maintaining brake relief for trains. This system is based on the system provided in Embodiment 1. The system provided in this embodiment also has a redundant design, which further improves the safety performance of the train. The following Describe in detail in conjunction with accompanying drawings.

[0060] see figure 2 , which is a schematic diagram of another system for maintaining brake release of a train provided in Embodiment 2 of the present application.

[0061] Based on the first embodiment, the system 200 for maintaining and releasing train brakes provided in this embodiment further includes: a traction converter 204 .

[0062] When the whole vehicle controller 102 controls the train to be in the holding braking state, when the handle of the train is applied to the traction position, the traction motor starts to work. The train may include a plurality of traction motors, and the tracti...

Embodiment 3

[0076] Based on the system for releasing train holding brakes provided in the above embodiments, Embodiment 3 of the present application also provides a method for releasing trains holding brakes, which will be described in detail below with reference to the accompanying drawings.

[0077] see image 3 , which is a flow chart of a method for maintaining brake relief of a train provided in Embodiment 3 of the present application.

[0078] The method is applied to a brake control unit of a train, and specifically includes the following steps:

[0079] S301: The vehicle controller sends the first holding brake release command when the vehicle controller judges that the traction force of the vehicle is greater than the traction force threshold value. The traction force threshold value is the sliding force when the line where the train is located reaches the preset slope when the load is overcrowded and the static force overcome when the train starts sum of friction forces.

[00...

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Abstract

The invention discloses a system and method for releasing brake-keeping of a train and the train. The system involves brake control units, a whole train controller and a brake device, wherein carriages are provided with brake control units, the whole vehicle controller is used for sending a first brake-keeping releasing instruction to the brake control units through a network when the traction force of a whole vehicle is larger than a traction force threshold value, the traction force threshold value is the sum of the downwards sliding force generated when the line, where the train is located,reaches a preset gradient and in an overcrowded-loading situation and a static friction force which need to be overcome when the train is started; and the braking control units are used for controlling the braking device to release brake-keeping according to the first brake-keeping releasing instruction. According to the system for releasing brake-keeping of the train, when brake-keeping of the train is released, the driving safety of the train can be guaranteed, and the phenomenon that the train slides down from a slope and rushes down is avoided.

Description

technical field [0001] The invention relates to the technical field of vehicle control, in particular to a system, a method and a train for maintaining brake relief of a train. Background technique [0002] At present, in order to improve the convenience of transportation, in addition to high-speed rail and bullet trains, urban rail transit in most cities includes subways or urban rails, which are collectively referred to as trains. [0003] A general train consists of multiple carriages. At present, the high-speed rail includes 8-group trains and 16-group trains, of which 16-group trains are two 8-group trains connected together. An 8-set train includes 8 carriages, and a 16-set train includes 16 carriages. [0004] Train holding brake means that when the train is stopped, the train needs to keep braking. Even if the train can stop steadily, it can ensure that the train stops steadily and does not slide when it is on an uphill line; . [0005] However, when the train nee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T7/12B60T7/16B60T17/18
CPCB60T7/126B60T7/16B60T17/18
Inventor 高超绪迟鹏飞许万涛王升晖刘力豪
Owner CRRC QINGDAO SIFANG CO LTD
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