Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Rail vehicle relay valve current vehicle detection method

A detection method and rail vehicle technology, applied in vehicle testing, measuring devices, testing of mechanical components, etc., can solve the problems of complex detection process, inaccurate test results, increased detection difficulty, etc., and achieve simple operation and simplified testing Difficulty, the effect of avoiding human error

Inactive Publication Date: 2018-12-18
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problems of the existing test methods that require an additional external air supply power supply, resulting in complicated detection process, increased detection difficulty, and often inaccurate test results due to leakage of the air supply joint, the present invention provides a rail vehicle relay valve Existing vehicle detection method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Rail vehicle relay valve current vehicle detection method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0017] Such as figure 1 As shown, the braking system of the test vehicle itself includes air source 1, air filling solenoid valve 2, exhaust solenoid valve 3, control pressure sensor 4, moving shaft brake cylinder 5, moving shaft relay valve 6, drag shaft relay Valve 7, drag shaft brake cylinder pressure sensor 8, moving shaft brake pressure sensor 9, drag shaft brake cylinder 10 and brake control unit 12.

[0018] The rail vehicle relay valve existing vehicle detection method of the present invention comprises brake function test and mitigation function test, specifically comprises the following steps:

[0019] Step 1, the notebook computer 13 that brake system test maintenance software is installed is connected with the test interface of the brake control unit 12 of test vehicle through test data line 11, and described brake system test maintenance softwar...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a rail vehicle relay valve current vehicle detection method, related to the technical field of rail vehicle debugging technology. The rail vehicle relay valve current vehicle detection method includes a brake function test and a mitigation function test, and the rail vehicle relay valve current vehicle detection method comprises the following steps: connecting a test notebook computer installed with a brake system test and maintenance software to a test vehicle brake system control unit, and setting a test pressure value of a relay valve control pipeline pressure commandin the brake system test and maintenance software, and after the operation is performed, the vehicle brake control unit controls the gain or loss actions of a charging solenoid valve and a exhaust solenoid valve in the relay valve control pipeline, so that the control pipeline pressure reaches the set value; and checking and comparing whether the pressure value of a drag axle brake cylinder and the pressure value of a dynamic axle brake cylinder in the test and maintenance software interface meet the test standard value or not, which can detect whether the function of the relay valve is normal. The rail vehicle relay valve current vehicle detection method provided by the invention does not require an external air supply device and a power supply device; therefore, test difficulty is simplified; the operation is simple; the actual working efficiency is improved; and the accuracy of the test result is guaranteed.

Description

technical field [0001] The invention relates to the technical field of rail vehicle debugging technology, in particular to an on-board detection method for a relay valve of a rail vehicle. Background technique [0002] Because the braking system of each car of the high-speed EMU is equipped with a relay valve device, which is used to control the air filling and exhausting of the brake cylinder of the vehicle, its function directly affects the braking function of the vehicle and the safety of the vehicle. In the past, there were the following problems in the detection process of the relay valve control pipeline by filling air into the relay valve control pipeline: First, the exhaust solenoid valve was connected to the control pipeline, and the exhaust passage between the solenoid valve and the atmosphere was not Conduction leads to the need to supply power to the exhaust solenoid valve through an external power supply every time the relay valve function test is performed, the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/007G01M13/00
CPCG01M13/00G01M17/007
Inventor 刘显录刘华杨姝
Owner CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com