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    Automatic vehicle control system
    1.
    发明授权
    Automatic vehicle control system 失效
    自动车辆控制系统

    公开(公告)号：US3570407A

    公开(公告)日：1971-03-16

    申请号：US3570407D

    申请日：1970-04-07

    申请人： CLARK EQUIPMENT CO

    发明人： BURCH ARTHUR R

    IPC分类号： B61L25/04 ,  B62D1/28 ,  B65G47/48 ,  B61B13/00 ,  B62D5/00

    CPC分类号： B62D1/28 ,  B61L25/04 ,  B65G47/48

    摘要： An automatically controlled vehicle is driven longitudinally along a path defined by an inverted angle iron track. An air pressure system on the vehicle has outlets discharging against opposing surfaces of the angle iron to produce a back pressure at each outlet varying with the distance of the outlet from the angle iron surface. The pressure at each of the outlets is sensed by a differential pressure transducer and a signal varying as the difference between the pressures is applied to a steering system to control the direction of movement of the vehicle. Other air outlets having pressure sensitive switches adjacent to the outlets are located on the vehicle and blocking plates are mounted at selected stations along the track to create a back pressure at the outlets. The back pressure when an outlet is adjacent a plate is sensed and analyzed by a logic system to control movement of the vehicle along the track.