Crane, particularly crawler crane or mobile crane
AssigneeLiebherr-Werk Ehingen GmbH
InventorsErwin Morath, Peter Abel, Edwin Cettinich
Life of this patent
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Abstract
The invention relates to a [crane], particularly crawler crane or mobile crane, with at least one monitoring and simulation means, by means of which a state of the crane can be monitored and/or simulated, wherein the monitoring and simulation means comprise at least one input means and at least one output means, and wherein, by means of the monitoring and simulation means, the change in state, particularly the bearing load curve of the crane, and particularly also the movement of the crane and/or of the boom of the crane, can be represented at any time, and/or a possible state and/or a possible change in state of the crane, particularly the bearing load curve of the crane, can be simulated and/or represented.
Claims19
A crane, particularly crawler crane or mobile crane, the crane includes a computer that is configured with at least one monitoring and simulation mode, by which a state of the crane can be monitored and simulated, wherein the monitoring and simulation mode comprise at least one input unit and at least one output unit, and a switching unit to switch an operation mode of the crane between the monitoring mode and the simulation mode based on a switching input of a crane operator,
- the monitoring mode represents at any time a first operating mode of the change in state of a bearing load curve of the crane, the movement of the crane and/or a boom of the crane, the simulation mode represents and simulates a second operating mode of a possible state and a possible change in state of the crane and/or boom, the bearing load curve of the crane and/or the movement of the crane and/or boom,
- wherein upon the switching input from the crane operator to enter the monitoring mode the first operating mode monitors the crane based on actual movement of the crane based on crane control inputs from the crane operator and upon the switching input from the crane operator to enter the simulation mode the second operating mode simulates virtual crane movement based upon crane control inputs from the crane operator,
- the monitoring and simulation modes include at least one model generation mode that displays a multidimensional model on the output unit by an interaction of a calculation unit and the model generation unit, and
- the multidimensional model generated by the model generation unit represents the change in state and/or the possible change in state of at least a portion of the crane, wherein the change in state represents an actual movement of at least a portion of the crane and a possible change in state represents a virtual movement of at least a portion of the crane,
- wherein the multidimensional model is generated based on:
- a first bearing load curve having two dimensions, wherein the first dimension of the first bearing load curve is associated with varying luffing of the crane while holding constant telescoping of the crane at a first value, and the second dimension of the first bearing load curve is associated with a maximum bearing load of the crane, and a second bearing load curve having two dimensions, wherein the first dimension of the second bearing load curve is associated with varying telescoping of the crane while holding constant luffing of the crane at a second value, and the second dimension of the second bearing load curve is associated with the maximum bearing load of the crane.
Dependencies are inferred from the claim text.