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    • 30. 发明申请
    • VEHICLE
    • 车辆
    • WO01023241A2
    • 2001-04-05
    • PCT/GB2000/003733
    • 2000-09-29
    • A01B51/02B62D7/15B62D1/00
    • A01B51/023B62D7/1509
    • A four wheel steer gantry vehicle which includes a pair of wheels (12) at each end of an elongate middle section (10). The vehicle is drivable and steerable in a first mode in which the vehicle moves substantially in its longitudinal direction and in a second mode in which the vehicle moves substantially transverse to its longitudinal direction. The steering system of the vehicle comprises two pairs of wheels, each wheel being independently steerably mounted and the mounts of the wheels of each pair of wheels being connected together by a hydraulic tie bar (15). Each wheel (12) is mounted such that it can undergo steering rotation by about 180 DEG . The wheels (12) are steered by hydraulic steering actuators. The vehicle has two end sections (120) joined to the middle section (10) and a hydraulic power back up system. RTK-DGPS antennae executing synchronised sampling can be used for controlling tracking of the vehicle relative to crop rows.
    • 一种四轮转向龙门车,其包括在细长中间部分(10)的每一端处的一对轮(12)。 车辆在第一模式中是可驱动的和可操纵的,其中车辆基本上沿其纵向方向移动,并且在第二模式中,车辆基本上横向于其纵向方向移动。 车辆的转向系统包括两对车轮,每个车轮独立地可转向地安装,并且每对车轮的车轮的安装件通过液压连接杆(15)连接在一起。 每个车轮(12)安装成使其可以经过转向旋转约180度。 车轮(12)由液压转向致动器转向。 车辆具有接合到中间部分(10)的两个端部部分(120)和液压动力备用系统。 执行同步采样的RTK-DGPS天线可用于控制车辆相对于作物行的跟踪。