A fault classification and diagnosis method for high-speed train brake pipe based on pressure data

A technology of pressure data and diagnostic methods, which is applied in the direction of railway vehicle testing, mechanical component testing, machine/structural component testing, etc. It can solve the problems of time-consuming and low accuracy of brake pipe fault analysis

Active Publication Date: 2019-11-01
XIAN UNIV OF TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a high-speed train brake pipe fault classification and diagnosis method based on pressure data, which solves the problems of time-consuming and low accuracy of brake pipe fault analysis in the prior art

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  • A fault classification and diagnosis method for high-speed train brake pipe based on pressure data
  • A fault classification and diagnosis method for high-speed train brake pipe based on pressure data
  • A fault classification and diagnosis method for high-speed train brake pipe based on pressure data

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Embodiment

[0149] A method for classification and diagnosis of high-speed train brake pipe faults based on pressure data in the present invention, the flow chart is as follows figure 1 As shown, the specific steps are as follows:

[0150] Step 1 is specifically implemented according to the following steps:

[0151] Step (1.1), supplement of data missing points:

[0152] Collect brake pipe pressure p(i), where i is the corresponding sampling time point, i=23, as shown in Table 1 and Table 2, draw a schematic diagram of the initial brake pipe pressure signal curve,

[0153] Table 1: Sampling data of brake pipe pressure p(i)

[0154] sampling time point 1 2 3 4 5 6 7 8 brake pipe pressure 9 8.6 8.4 8.7 9.4 9.8 0 sampling time point 9 10 11 12 13 14 15 16 brake pipe pressure 10.1 9.8 9.5 9 8.7 8.5 8.4 8.8 sampling time point 17 18 19 20 21 22 23 brake pipe pressure 9 9.4 9.8 10.1 9.6 9 9.3

[0155] Sea...

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Abstract

The invention discloses a pressure-data-based fault classification and diagnosis method of a brake pipe of a high-speed train. The method comprises: step 1, carrying out preprocessing on pressure data of a brake pipe of a train stopping segment; step 2, carrying out smoothing processing on the brake pipe pressure data after preprocessing at the step 1; step 3, calculating a related parameter of the brake pipe pressure of the train; and step 4, carrying out a brake pipe fault analysis based on the related parameter of the brake pipe pressure at the step 3. Therefore, problems of large brake pipe fault detection time and low precision in the prior art are solved.

Description

technical field [0001] The invention belongs to the technical field of fault diagnosis, and in particular relates to a method for classification and diagnosis of brake pipe faults of high-speed trains based on pressure data. Background technique [0002] With the rapid development of high-speed rail, ensuring the operation order of EMUs and improving the safety and reliability of EMUs have attracted widespread attention. In order to prevent high-speed trains from slipping and causing accidents, a braking system is installed on high-speed trains. Braking and its air supply system are the key technologies of high-speed EMUs. If the brake pipe is damaged, it will affect the safe operation of the train and the safety of the line. unimpeded. It will cause train brake failure due to brake pipe damage, which will bring catastrophic consequences. Therefore, its safe operation is directly related to the safe production of railway transportation. At present, the brake pipe fault det...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00G01M17/08
CPCG01M13/00G01M17/08
Inventor 谢国杜许龙张永艳钱富才胡绍林焦尚彬
Owner XIAN UNIV OF TECH
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