The invention provides a train braking safety distance calculation method and device.The train braking safety distance calculation method comprises the steps that the change relation of the adhesion coefficient between wheel rails along with the slip rate and the axle load is obtained; the method comprises the following steps: acquiring stress and movement conditions of a plurality of parts of a train, analyzing the stress of the plurality of parts of the train, and outputting speed difference and deceleration parameters of the plurality of parts of the train; calculating a target air pressure value of the brake cylinder based on the input target deceleration; inflating the brake cylinder to enable the internal pressure of the brake cylinder to be close to the target air pressure value; different adhesion levels, different load levels and different train speeds when emergency braking instructions are triggered are set up, and multiple sets of data are obtained; fitting the multiple groups of data to obtain a train braking safety distance calculation formula; and according to the train braking safety distance calculation formula, the train braking safety distance is determined based on the obtained adhesion level, the load level and the train speed.

    本发明提出了列车制动安全距离计算方法及装置,其中,所述列车制动安全距离计算方法包括:获取轮轨间的黏着系数随滑移率和轴重的变化关系;获取列车的多个部分的受力和运动情况,对所述列车的所述多个部分的受力分析,输出所述列车的所述多个部分的速度差、减速度参数;基于输入的目标减速度计算制动缸的目标气压值;对制动缸进行充气使其内部压强接近所述目标气压值;拟定不同的黏着水平、不同的载重水平及不同的触发紧急制动指令时的列车速度,获得多组数据;对所述多组数据进行拟合,以得到列车制动安全距离计算公式;根据所述列车制动安全距离计算公式,并基于获取的黏着水平、载重水平及车速确定所述列车制动安全距离。


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    Title :

    Train braking safety distance calculation method and device


    Additional title:

    一种列车制动安全距离计算方法及装置


    Contributors:
    YAN YANLI (author) / CHEN XIAOWEI (author) / GU HAIHAO (author) / SUN HAIDONG (author) / GAO QI (author)

    Publication date :

    2022-12-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC



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