Apparatus for controlling the movement of hydraulically movable work equipment and a path control arrangement
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United States of America Patent
Stats
-
Oct 26, 1993
Grant Date -
N/A
app pub date -
Sep 23, 1991
filing date -
Sep 29, 1990
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Apparatus for controlling the movement of hydraulically movable work equipment that is arranged at the end of a length-adjustable and pivotable arm, along a substantially rectilinear path of movement, the work equipment being moved with the assistance of hydraulic drive units that act on the arm in dependence on input control signals that determine the path of movement. Even in the case of non-ideal control loops for the control of the drive units, it is intended that the work equipment be moved along a desired path. For that purpose, starting from an actual position of the work equipment, a sequence of desired positions in the path of movement is ascertained and the work equipment is moved from an actual position to the next desired position, the movement into the next position not being initiated until the work equipment is located in a predetermined tolerance band about the preceding position.
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