Novel shaft temperature monitoring system and control method for railway vehicles

A technology of rail vehicle and monitoring system is applied in the monitoring field of the new axle temperature system of CRH5 EMU, which can solve the problems of difficult maintenance and low reliability of the axle temperature alarm system.

Inactive Publication Date: 2017-05-10
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the shaft temperature alarm system has low reliability during operation and is difficult to maintain

Method used

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  • Novel shaft temperature monitoring system and control method for railway vehicles
  • Novel shaft temperature monitoring system and control method for railway vehicles

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Embodiment Construction

[0011] refer to figure 1 , the 8 compartments of the EMU are all equipped with an axle temperature alarm host, and each axle temperature alarm host is connected to an 8-way temperature sensor, and the 8-way temperature sensor is installed at each axle end to collect the temperature data of each axle, A / The D conversion circuit is integrated in the axle temperature alarm hosts of each vehicle. Two mutually redundant FSK bus communications are used between the axle temperature alarm hosts. The axle temperature alarm hosts are used to monitor the temperature uploaded by each temperature sensor at each axle end. The axle temperature host of the terminal car is connected with the on-board control unit MPU.

[0012] The temperature sensor installed at each axle end uploads the data to the processor through the following path: axle end sensor——bogie SD box——junction box of the trunking under the vehicle——axle temperature alarm processor. This scheme implements A / D conversion inside...

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Abstract

A novel shaft temperature monitoring system for railway vehicles is characterized in that a shaft temperature alarm host is installed in every compartment of a motor train unit, a temperature sensor is connected with every shaft temperature alarm host, the temperature sensor is installed on every shaft end to collect every shaft temperature data, A / D switching circuits are integrated in the shaft temperature alarm host of every vehicle, the shaft temperature alarm host is used for monitoring temperature uploaded by every temperature sensor of every shaft end, FSK bus is used for communication between the shaft temperature alarm hosts, and the shaft temperature alarm hosts of two ends of the vehicle are connected with control units on the vehicle. The novel shaft temperature monitoring system and control method for the railway vehicles simplify a path of shaft temperature signals transferred by the temperature sensor. Partial middle connection points are taken out, and A / D switching function is integrated in the shaft temperature alarm host of every vehicle so that failure rates of a system are reduced. The shaft temperature alarm host is installed in every compartment, which is capable of respectively recording and analyzing the shaft temperature data of the vehicle which is monitored, easy to control, and beneficial for finding fault points correctly and quickly when users maintain the vehicles.

Description

technical field [0001] The invention belongs to the technical field of rail vehicle axle temperature monitoring, and in particular relates to the monitoring of a new axle temperature system of a CRH5 type EMU. Background technique [0002] The reliability of the running part of the EMU is the basic guarantee for the safe operation of the EMU. Therefore, it is necessary to monitor the bearing temperature of the EMU bogie in real time. However, due to the large vibration amplitude in the bogie area, false alarms often occur during the uploading of the bearing temperature. The stability of the temperature monitoring system has become an urgent problem to be solved for the CRH5 EMU. The basic principle of the shaft temperature monitoring system is that the temperature sensor collects the temperature and uploads it to the processor, and the processor performs analysis and processing and then sends an alarm. [0003] At present, platinum resistors are used to monitor the axle tem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61K9/06B61L15/00
Inventor 王铁胜孙文斌郑恒亮
Owner CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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