Traction motor bearing temperature monitoring alarm control method and system and related device

A technology for traction motors and control methods, which is applied to control devices, temperature measurement in motors, electrical devices, etc., and can solve problems such as speed reduction, inability to effectively ensure safe operation of EMUs, and potential safety hazards of trains

Active Publication Date: 2019-02-12
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The monitoring and alarm method is relatively simple, which cannot effectively ensure the safe operation of the EMU. It is not accurate enough to judge the bearing damage state simply by temperature. In the cas...

Method used

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  • Traction motor bearing temperature monitoring alarm control method and system and related device
  • Traction motor bearing temperature monitoring alarm control method and system and related device
  • Traction motor bearing temperature monitoring alarm control method and system and related device

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specific Embodiment approach

[0124] Reasonable combinations of the occurrence and sequence of the aforementioned four events can be summarized into 9 cases and three-level alarms. The specific implementation is as follows:

[0125] Level 0: zero-level alarm

[0126] Case M1: The axle temperature sensor is faulty.

[0127] Vehicle Response: Diagnostic codes only.

[0128] Level 1: Level 1 alarm

[0129] Situation M2: When the vehicle has no traction bearing monitoring-related fault diagnosis, the event is directly monitored: T>120°C.

[0130]Vehicle response: The speed limit is 200km / h. If the speed is too high, full braking will be automatically applied after 300s; the inverter device has no torque output; the motor cooling fan is forced to cool at high speed.

[0131] Level 2: Secondary alarm

[0132] There are three situations in which the secondary alarm of the vehicle can be generated, which are:

[0133] Situation M3: After the bearing temperature T>120°C is detected first, the bearing temperat...

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Abstract

The invention discloses a traction motor bearing temperature monitoring alarm control method. The traction motor bearing temperature monitoring alarm control method not only utilizes the temperature as a criterion for a traction motor bearing failure, but also combines other criterions which normally and probably exist when a traction motor bearing fails. An actual state of the bearing is effectively judged by a method of multiple-perspective and multi-event combination, and more rigorous failure levels and speed limit standards under the corresponding levels are established based on more comprehensive monitoring parameters to ensure the safe and reliable operation of a train. The invention further discloses a traction motor bearing temperature monitoring alarm control system and device and a computer readable storage medium. The traction motor bearing temperature monitoring alarm control system and device and the computer readable storage medium have the above beneficial effects.

Description

technical field [0001] The present application relates to the technical field of traction motor fault monitoring, in particular to a traction motor shaft temperature monitoring and alarm control method, system, device and computer-readable storage medium. Background technique [0002] As the speed of EMU trains increases, the impact, dynamic effect and vibration of the train on the rails increase, and the safety requirements for the rotating parts of the train are higher. The traction motor is the key rotating part of the EMU. It is generally installed on the train bogie and is crucial to the safety of the train at high speed. When the bearings are worn or defective, it will affect the safety of the train. [0003] The traditional traction motor bearing monitoring system only monitors the bearing temperature, and monitors and alarms the EMU according to the bearing temperature limit, which is divided into two levels of alarms. Level one alarm: bearing temperature T>120°C...

Claims

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Application Information

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IPC IPC(8): B60L3/00G01K13/00
CPCG01K13/00B60L3/0023G01K2205/00G01K13/08G01K15/007G01K3/005B60L3/0061B60L2200/26B60L2240/425B60L2240/12B60L1/02B60L3/08B60L2240/80
Inventor 花明磊李强禹凯
Owner CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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