The invention provides a rear vehicle tracking method and device based on an expected parking position of a front vehicle, and the method comprises the steps: obtaining the current speed of the front vehicle, a time parameter after the front vehicle triggers emergency braking, an emergency braking parameter of the front vehicle, and an emergency braking parameter of a most unfavorable ramp, and determining a first farthest forward distance after the front vehicle triggers emergency braking; according to the current position of the front vehicle and the first farthest forward distance, the farthest distance between the rear vehicle and the front vehicle is obtained; according to the farthest distance, the ramp additional acceleration between the head of the rear vehicle and the farthest distance is determined; according to the ramp additional acceleration, the nearest distance between the expected parking points of the rear vehicle and the front vehicle is obtained; according to the current speed of the rear vehicle, determining a second farthest forward distance after the rear vehicle triggers emergency braking; and if the second farthest forward distance is larger than the sum of the shortest distance and the safety margin, the rear vehicle triggers emergency braking. The safety envelope that the moving authorization terminal does not cross the front vehicle is obtained based on the emergency braking curve, the tracking capacity is improved, and potential safety hazards are eliminated.

    本申请提供一种基于前车预期停车位置的后车追踪方法和装置,方法包括:获取前车当前速度、前车触发紧急制动后的时间参数、前车紧急制动参数和最不利坡道的紧急制动参数,确定前车触发紧急制动后的第一最远前行距离;根据前车当前位置和第一最远前行距离,得到后车与前车之间的最远距离;根据最远距离,确定后车车头与最远距离之间的坡道附加加速度;根据坡道附加加速度,得到后车与前车预期停车点的最近距离;根据后车当前速度,确定后车触发紧急制动后的第二最远前行距离;若第二最远前行距离大于最近距离与安全裕量之和,后车触发紧急制动。本申请基于紧急制动曲线得到移动授权终点没有越过前车的安全包络,提高了追踪能力,消除安全隐患。


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    Title :

    Rear vehicle tracking method and device based on expected parking position of front vehicle


    Additional title:

    基于前车预期停车位置的后车追踪方法和装置


    Contributors:
    XIE LINYI (author) / XI JIAYI (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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