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    • 41. 发明授权
    • Teaching and playback method for work machine
    • 作业机器教学与播放方法
    • US5274557A
    • 1993-12-28
    • US720502
    • 1991-07-29
    • Yukio MoriyaToshio YokoyamaFujitoshi TakamuraTakumi Onoda
    • Yukio MoriyaToshio YokoyamaFujitoshi TakamuraTakumi Onoda
    • E02F9/20E02F3/43E02F9/22F15B21/02G05D3/12G06F15/20
    • E02F3/438E02F9/2296
    • A teaching and playback method for a work machine that is applicable to construction equipment such as a hydraulic excavator to automatize operation. Data on the operator's operation of work machine actuators is stored, and the stored data is reproduced so that the same operation as that by the operator is automatically performed. The method is adapted to effect exactly the same operation as what has been taught even when, during playback, the load on the actuators has varied from the level applied during the teaching. For this purpose, the pump discharge amount and the amounts of flow supplied to the actuators which are present during the teaching are stored. During playback, when the load has varied, and the pump discharge has changed, the engine output is controlled in such a manner that the actual pump discharge becomes equal to the amount stored during the teaching. When the flows supplied to the actuators have changed, the flow control valve provided in an inflow circuit is controlled in such a manner that the actual flows become equal to the amounts stored during the teaching. Thus, even when the load during playback has varied from the level during the teaching, the actuators can operate exactly as taught, without involving a discrepancy in the locus of operation.
    • PCT No.PCT / JP89 / 01270 Sec。 371日期1991年7月29日 102(e)日期1991年7月29日PCT 1989年12月18日PCT PCT。 出版物WO90 / 07032 日期:1990年6月28日。一种适用于液压挖掘机等施工设备自动化操作的作业机械的教学播放方法。 存储有关作业机械执行器的操作者的操作的数据,并且再现存储的数据,从而自动执行与操作者相同的操作。 该方法适于实现与所教导的完全相同的操作,即使在播放期间,致动器上的负载与在教学期间施加的水平不同。 为此,存储泵排出量和供给到执行器期间的流量。 在重放期间,当负载变化并且泵排放改变时,发动机输出被控制为使得实际的泵排出量等于在教学期间存储的量。 当提供给致动器的流动已经改变时,设置在流入回路中的流量控制阀被控制为使得实际流量变得等于在教学期间存储的量。 因此,即使在回放期间的负载与教学期间的水平不同,致动器可以如所教导的那样精确地操作,而不涉及操作轨迹的差异。