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Suspension fault early warning method and system for high-speed maglev train

A technology for fault warning and maglev trains, which is applied in the field of rail transit, can solve the problems of being unable to detect abnormalities of suspension and guiding equipment in real time, and cannot perform real-time analysis and diagnosis, so as to achieve the effect of dual optimization management and guaranteed operation

Pending Publication Date: 2021-12-21
CENT SOUTH UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the fact that the levitation system and guidance system are the core key systems of the maglev train and are also technical difficulties, the maglev train technology has always been a research hotspot. In foreign countries, TCMS (Train Control and Management System) usually communicates directly with each levitation node for fault judgment. However, this technology cannot detect abnormal conditions of suspension and guiding equipment in real time, and cannot perform real-time analysis, diagnosis and process early warning

Method used

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  • Suspension fault early warning method and system for high-speed maglev train
  • Suspension fault early warning method and system for high-speed maglev train
  • Suspension fault early warning method and system for high-speed maglev train

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Effect test

Embodiment 1

[0030] Such as figure 1 As shown, the real-time early warning guarantee and data diagnosis method of the high-speed maglev train suspension system and the system operation flow chart take the three-module train as an example. The vehicle-level communication forms a vehicle network through the 6-TRDP protocol, including 8-Ethernet communication, 11-protocol Processing; the logic functions between devices are connected through 4-CPU central processing unit, CPU central processing unit through 12-protocol conversion, 15-logic processing, 10-health prediction, 3-safety guidance, 5-warning control, 20- The light display control function cooperates with the equipment communication network dominated by the 22-CAN bus, including 13-protocol processing, 1-frame recognition, and 9-CAN communication functions, and triggers the 24-data recording unit after data processing by the CPU. Including 14-data recording, 17-data storage, 2-data export functions, and record and store the data as re...

Embodiment 2

[0032] Such as figure 2 As shown, since the suspension node module has the characteristics of independent control, the entire suspension system is supported by several sets of independently controlled suspension units, each suspension control is independent of each other, and each 3-suspension node uses acceleration and gap sensors to form a closed-loop control system. The 5-MSU takes the suspension unit as the object, communicates and connects each suspension node through the 1-CAN bus, and monitors and records the control data and information of the suspension node. The local area network of the suspension monitoring unit adopts the CAN bus of the controller local network. Each vehicle adopts 1 MSU unit, provides 4 independent CAN communication interfaces, has CAN bus data communication capability, can monitor the status data of multiple groups of suspension nodes at the same time, and connects to 2-guided control unit through CAN bus. At the same time, through the 4-ETH ...

Embodiment 3

[0034] Such as image 3As shown, the real-time early warning guarantee and data diagnosis method and system of the maglev train suspension system are divided into 4 functional structural areas, the 3-power supply block realizes the voltage DC conversion function through the 9-power supply module; Frame identification, 10-CAN communication function; 11-CPU block realizes 5-logic processing, 16-protocol processing, 7-warning control, 12-safety guidance, 8-data recording and storage, 14-data analysis through the central processing unit module Function; 4-vehicle communication block realizes 17-Ethernet communication, 2-protocol processing, 15-logic processing, 1-protocol conversion functions through the switch board module.

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Abstract

The invention discloses a suspension fault early warning method and system for a high-speed maglev train. The method comprises the following steps: monitoring each suspension controller of the whole train and each suspension electromagnet of the whole train so as to realize real-time early warning, online real-time analysis and health prediction of a suspension system; meanwhile, rapidly recording whole-course data, and rapidly performing fault positioning on the suspension system in combination with a matched ground analysis system; in combination with the real-time waveform, performing analysis and service life pre-judging on the operation states of a suspension converter and other key equipment; and performing control treatment on the suspension system according to the vehicle network instruction to guarantee operation of the train. The method has the advantages of being easy to operate, remarkable in effect, low in cost and suitable for being applied and popularized in the maglev train, and therefore good economic benefits are obtained.

Description

technical field [0001] The invention relates to the field of rail transportation, in particular to a suspension system, a maglev train, an early warning guarantee and a data diagnosis method and system. Background technique [0002] The levitation system of the maglev train ensures that the train body floats with a certain gap from the track surface, and the normal suspension system usually only has a levitation gap of about 8mm, which is very harsh for the operation of the maglev train. The suspension system is the key system of the maglev train. The dynamic operation of the suspension system is directly related to the operation quality of the maglev train. Any problem in any suspension node will affect the operation of the entire train. Different speed conditions, different load conditions, different environmental conditions, adjacent suspension node failures, etc. can affect the stable operation of suspension trains. At the same time, there are many types of suspension sy...

Claims

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Application Information

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IPC IPC(8): B61L15/00B60L13/04
CPCB61L15/0018B61L15/0054B61L15/0081B60L13/04Y02T90/16
Inventor 李蔚张文璐姚美琪刘纪龙王凯苗欣
Owner CENT SOUTH UNIV
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