Mobile crane operation control
AssigneeTerex Australia Pty Ltd
InventorMichael Atherden
Life of this patent
Estimating the term…
Abstract
A method is provided for controlling an operation of a mobile crane, the operation comprising a user input, the user input comprising a command to change a configuration of the mobile crane. The method comprises the steps of: determining a current tipping moment of the mobile crane, the tipping moment comprising a moment about a tipping line of the mobile crane; predicting an effect of the user input on the tipping moment of the mobile crane; and if the predicted effect of the user input is to increase the tipping moment of the mobile crane past a predetermined amount, altering a response to the user input. A system for controlling an operation of a mobile crane, and a user display system for a mobile crane are also provided.
Claims20
A method of controlling an operation of a mobile crane, the operation comprising a user input, the user input comprising a command to change a configuration of the mobile crane, the method comprising steps of:
- determining a current tipping moment of the mobile crane, the current tipping moment comprising a moment about a tipping line of the mobile crane;
- predicting an effect of the user input on the current tipping moment of the mobile crane;
- and
- when the predicted effect of the user input is to increase the current tipping moment of the mobile crane past a predetermined amount, altering a response to the user input;
- designating a first range of the eff ct of the user input as a safe ad a second range of the effect of the user input as a warning range;
- and
- causing a user display, wherein the user display comprises at least one display element corresponding to one or more mobile crane characteristics affected by user inputs. each display element comprising a first portion designating a safe zone of the corresponding one or more mobile crane characteristics and a second portion designating a warning zone of the corresponding one or more mobile crane characteristics, to display the first portion and the second portion in dependence on a relation between the first range of the effect relative and the second range of the effect.
A user display system for a mobile crane, the user display system comprising a user display and a configuration determinator, the user display comprising at least one display element, the display element corresponding to one or more mobile crane characteristics affected by user inputs, each display element comprising a first portion designating a safe zone of the corresponding one or more mobile crane characteristics and a second portion designating a warning zone of the corresponding one or more mobile crane characteristics, wherein the configuration determinator is operable to
- determine a current tipping moment of the mobile crane, the current tipping moment comprising a moment about a tipping line of the mobile crane;
- predict an effect of the user input on the current tipping moment of the mobile crane;
- and
- automatically alter a response of the mobile crane to the user input when if the predicted effect of the user input is to increase the current tipping moment of the mobile crane past a predetermined amount;
- designate a first range of the effect of the user input as a safe range and a second range of the effect of the user input as a warning range;
- and
- cause the user display to display the first portion and the second portion in dependence on a relation between the first range of the effect relative and the second range of the effect.
Dependencies are inferred from the claim text.