基于轨面异物识别的高速铁路车辆紧急制动控制研究

IF 0.7 Q4 ENGINEERING, MECHANICAL
Weihua Wang, Yaodong Zheng, Yuanjing Chen
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引用次数: 0

摘要

为了提高高速铁路车辆的运行稳定性,提出了一种基于轨道表面异物识别的高速铁路车辆紧急制动控制方法。采用动态帧扫描法建立高铁轨道表面异常物体的图像采集,采用视觉传感器和振动传感器对高铁轨道面上异物的特征进行识别和处理。根据异常特征提取结果,将异物情况下的命令信号发送到制动控制系统的终端命令库。根据紧急制动系统的转换开关,显示列车应急处置信息接收、应急处置级别、应急处置类型等主要应急处置输出状态,采用接触压力分布和不均匀热流的联合控制方式,控制系统联合控制方式,采用驱动系统、盘式摩擦系统和信号采集系统。建立紧急制动控制模块,根据轨面异物的特征识别结果,实现高速铁路车辆的紧急制动控制。测试结果表明,采用该方法进行高速铁路车辆紧急制动控制时,控制模块受车辆轴距特性、轨道结构特性等因素的影响较小,对轨道表面异物的特征识别能力较强,提高了紧急制动的稳定性和实时性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Research on high-speed railway vehicle emergency braking control based on rail surface foreign matter identification
In order to improve the operation stability of high-speed railway vehicles, an emergency braking control method for high-speed railway vehicles based on the identification of foreign matters on the track surface is proposed. The dynamic frame scanning method is used to build the image acquisition of abnormal objects on the high-speed rail track surface, and the visual sensor and vibration sensor are used to identify and process the features of foreign objects on the high-speed rail track surface. According to the abnormal feature extraction results, the command signal in case of foreign objects is transmitted to the terminal command library of the braking control system. According to the transfer switch of the emergency braking system to display the main emergency disposal output states such as the train emergency disposal information reception, emergency disposal level, emergency disposal type and other information, the joint control method of contact pressure distribution and non-uniform heat flux is adopted, and the joint control method of control system, drive system, disc friction system and signal acquisition system is adopted. The emergency braking control module is established to realize the emergency braking control of high-speed railway vehicles according to the feature recognition results of foreign matters on the rail surface. The test results show that the control module is less affected by the vehicle wheelbase characteristics, track structure characteristics and other factors when using this method for high-speed railway vehicle emergency braking control, and has a strong ability to identify the characteristics of foreign matters on the track surface, which improves the stability and real-time performance of emergency braking.
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来源期刊
Journal of Vibroengineering
Journal of Vibroengineering 工程技术-工程:机械
CiteScore
1.70
自引率
0.00%
发文量
97
审稿时长
4.5 months
期刊介绍: Journal of VIBROENGINEERING (JVE) ISSN 1392-8716 is a prestigious peer reviewed International Journal specializing in theoretical and practical aspects of Vibration Engineering. It is indexed in ESCI and other major databases. Published every 1.5 months (8 times yearly), the journal attracts attention from the International Engineering Community.
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