Aiming at the wheel skidding or sliding frequently occurred on an autopilot metro line,this paper propo-ses a rapid positioning method based on ATO(Automatic Train Operation System)maps and systematically studies the causes of and solutions to the faults by utilizing the fixed features of the speed curves of the autopilot metro vehi-cles.By the aid of detailed historical data statistics,the impact of meteorological conditions on failure frequency is analyzed,and the analysis results show that the proportion of skidding or sliding incidents related to weather condi-tions is as high as 92％.The research focuses on determining the behavior of running up and down in section A and running down in Section B,which have a high proportion of skidding or sliding,by means of on-board ATO infor-mation,along with field investigations to explore the fault causes.The research results indicate that the main reasons for the skidding or sliding faults occurred in the vehicles on a metro line include the too short distance between the point rail and the frog end in the turnout zone,uneven track,and humid conditions affecting the wheel/rail adhe-sion on the ground line sector.
关键词
空转滑行/ATO图谱/自动驾驶地铁/气象条件/道岔
Key words
wheel skidding and sliding/ATO maps/automatic pilot metro vehicle/weather conditions/rail switch
维普
万方数据