瞿卢

[摘    要] 动车已经成为我国经济和科技快速发展的重要标志。以快速便捷著称，便利了人们的生活生产，同时也加快了我国经济建设的速度。其中，在动车相关产业快速发展的同时，动车轴端的速度传感器故障的发生成为动车发展的一大阻碍。文章分析动车轴端的速度传感器的工作原理，动车控制的所用逻辑和动车轴端的速度传感器发生故障后可能对列车造成的影响，并在此基础上改进完善原有的检修方案，探讨得出一套行之有效的检修方案。

[关键词]动车;轴端的速度传感器;故障检修方案;检修作业;工作原理

[中图分类号]TP391.41 [文献标志码]A [文章编号]2095–6487（2021）05–0–02

Research on Fault Diagnosis Method of Speed Sensor at Axle End of Motor Car

Qu Lu

[Abstract]High-speed trains have become an important symbol of the rapid development of my country's economy and technology. And it is known for being fast and convenient， which not only facilitates people's life and production， but also accelerates the speed of my country's economic construction. Among them， with the rapid development of the EMU-related industries， the occurrence of the speed sensor failure at the axle end of the EMU has become a major obstacle to the development of the EMU. Analyze the working principle of the speed sensor at the axle end of the EMU， the logic used in the control of the EMU and the possible impact on the train after the failure of the speed sensor at the axle end of the EMU， and on this basis， improve and perfect the original maintenance plan， and explore a set of behaviors. Its effective maintenance program.

[Keywords]EMU; speed sensor at the shaft end; troubleshooting plan; maintenance work; working principle

动车作为现代化城市的主要交通方式，具有运行平稳、加速能力强、换向方便以及爬坡能力强等优点。我国的动车从进口列车到智能化国产列车，从落后到世界前沿，中国动车在动车科技化、国产化、标准化、智能化的道路上稳步前进。动车的稳步发展离不开列车检修对列车正常安全运行的保证，而其中极为重要的一环就是在动车轴端的速度传感器方面的故障检修。针对动车轴端的速度传感器故障对原有检修方法进行改进完善成为重中之重，成为保证动车安全可靠运行的必要举措。

1 动车轴端的速度传感器的相关工作逻辑原理及故障成因

1.1 动车轴端的速度传感器的作用

列车轴端的速度传感器对列车的准时到达，控制列车的运行速度起着至关重要的作用。……