The invention discloses a test vehicle emergency collision avoidance system in an unmanned test field, and the system comprises two rotating speed sensors which are used for obtaining the rotating speed information of two front wheels in real time; the plurality of pre-collision detection sensors are used for acquiring pre-collision time information of the vehicle in each direction; the brake controller stores brake triggering time T1 and is used for judging the vehicle state according to the obtained rotating speed information, determining acquired pre-collision time information according to the vehicle state, selecting the minimum value in the acquired pre-collision time information as vehicle pre-collision time T2, further judging whether T2 is smaller than T1 or not and sending a brake instruction if T2 is smaller than T1; the executing mechanism is used for receiving the braking instruction and driving a braking pedal to achieve braking according to the braking instruction. The method has the advantages that unmanned reliability testing of the automatic driving vehicle is achieved, the vehicle is braked through the vehicle emergency collision avoidance system under the condition that the vehicle is in danger or breaks down, accidents are prevented, or losses caused by the accidents are reduced.

    本发明公开了一种无人驾驶测试场内测试车辆应急避撞系统,包括:2个转速传感器,用于实时获得两前轮的转速信息;多个预碰撞检测传感器,用于获取车辆各方向的预碰撞时间信息;制动控制器,其存储触发制动时间T1,用于依据获得的转速信息判断车辆状态,依据车辆状态确定采信的预碰撞时间信息,并选取采信的预碰撞时间信息中的最小值为车辆预碰撞时间T2,进一步判断T2是否小于T1,若是,发送制动指令;执行机构,用于接收并依据制动指令带动制动踏板实现制动。本发明具有实现自动驾驶车辆可靠性测试的无人化,在车辆出现危险或者故障的情况下通过车辆应急避撞系统将车辆刹住,防止发生事故,或降低事故造成的损失的有益效果。


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    Titel :

    Test vehicle emergency collision avoidance system in unmanned test field


    Weitere Titelangaben:

    无人驾驶测试场内测试车辆应急避撞系统


    Beteiligte:
    LIN QIANG (Autor:in) / DANG LIGANG (Autor:in) / DONG XIAO (Autor:in) / SUN YAFU (Autor:in) / LIANG CHANGLE (Autor:in)

    Erscheinungsdatum :

    28.04.2023


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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