城轨车辆防滑控制系统的轴速测量方法研究  

Research on Axle Speed Measurement Method for Wheel Slide Protection System of Urban Rail Transit

作　　者：王新海 WANG Xinhai(Locomotive&Car Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China;Beijing Zongheng Electro Mechanical Technology Co.,Ltd.,Beijing 100094,China)

机构地区：[1]中国铁道科学研究院集团有限公司机车车辆研究所,北京100081 [2]北京纵横机电科技有限公司,北京100094

出　　处：《铁道机车车辆》2023年第3期17-24,共8页Railway Locomotive & Car

摘　　要：为提高防滑控制系统的轴速测量精度,设计了基于MC9S12系列微控制器和基于FPGA的2种等精度轴速测量系统。对2种等精度测速装置进行了试验验证,分析并通过试验验证了等精度法的分辨率和测量延时对测量精度的影响。结合等精度法测速在城轨车辆防滑控制系统中的实际测试数据,分析了真实车辆条件下轮轴速度的测量精度和轮轴的实际转动状态对轴速信号的影响。To improve the measurement precision of axle speed for wheel slide protection system,a design method of equal precision speed measurement is proposed based on MC9S12 microcontrollers.Two designs for equal precision speed measurement are verified by experiments.The influence on dynamic accuracy by measurement resolution and by measurement delay with equal precision measurement are analyzed and verified by the experiments.With actual speed data with equal precision measurement in wheel slide protection system on urban rail transit,it is analyzed for actual measurement accuracy of axle speed under real vehicle conditions and the effect on the axle speed signals of the actual axle rotation state.

关 键 词：等精度法 轴速测量 防滑控制 

分 类 号：U239.5[交通运输工程—道路与铁道工程]