摘要
对城际铁路CTCS2+ATO车载设备运用初期偶发停车“出窗”问题进行详细分析,总结对停车精度的影响因素;针对列车制动性能波动和车站坡度对列车精确停车的影响,提出改进的速度自动控制算法。通过车站坡度补偿计算列车惰行减速度,对制动工况下的列车制动力进行在线学习,进而调整施加和缓解制动力的时机,实现停车制动距离的动态调整。车站坡度补偿优化方案已在现场应用,解决了由于坡度造成的停车出窗问题;制动力在线学习方案已通过实验室验证,后续需通过现场试验进一步验证其改进效果。
The problem of stopping out of specific zone occasionaly at the early stage of application CTCS2+ATO on-board equipment is analyzed in detail,and the factors that affect the stopping accuracy are summarized.Then an improved automatic speed control algorithm is proposed according to the influence of train braking performance fluctuation and station gradient on accurate stopping.The train coasting deceleration is calculated by station gradient compensation,and the train braking force under braking condition is studied online,so as to adjust the timing of braking force application and relief,and realize the dynamic adjustment of the stop braking distance.The optimization method of station gradient compensation has been applied in the field,which solves the problem of stopping out of specific zone caused by gradient.The online learning of braking force has passed laboratory verification,and its improvement effect needs to be further verified by field test.
出处
《铁道通信信号》
2023年第4期27-31,共5页
Railway Signalling & Communication
