Control system for a boom crane
AssigneeLiebherr-Werk Nenzing GmbH
InventorsKlaus Schneider, Oliver Sawodny, Joerg Neupert
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AssigneeLiebherr-Werk Nenzing GmbH
InventorsKlaus Schneider, Oliver Sawodny, Joerg Neupert
Estimating the term…
A control system for a boom crane, having a tower and a boom pivotally attached to the tower, a first actuator for creating a luffing movement of the boom, a second actuator for rotating the tower, first means for determining the position rA and/or velocity {dot over (r)}A of the boom head by measurement, second means for determining the rotational angle φD and/or the rotational velocity {dot over (φ)}D of the tower by measurement, the control system controlling the first actuator and the second actuator. In the control system of the present invention the acceleration of the load in the radial direction due to a rotation of the tower is compensated by a luffing movement of the boom in dependence on the rotational velocity {dot over (φ)}D of the tower determined by the second means. The present invention further comprises a boom crane having such a system.
A control system for a boom crane, having a tower and a boom pivotally attached to the tower, a first actuator for creating a luffing movement of the boom, a second actuator for rotating the tower, first means for determining the position rA and/or velocity {dot over (r)}A of the boom head by measurement, second means for determining the rotational angle φD and/or the rotational velocity {dot over (φ)}D of the tower by measurement,
Dependencies are inferred from the claim text.