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US 12,030,755 B2Granted
Method for controlling and in particular monitoring an actuator, in particular of a winch, a hoist or a crane, and system for carrying out such a method
AssigneeKonecranes Global Corporation
InventorDirk Neubauer
Life of this patent
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Abstract
A method and system for controlling an actuator, in particular an actuator of a winch, a hoist or a crane, wherein the actuator is controlled using a fail-safe control unit. In order to improve a corresponding method, according to the invention, set point values are calculated in the fail-safe control unit, on the basis of which values the actuator is controlled.
Claims15
A method for controlling an actuator of a winch, a hoist or a crane via a fail-safe control unit, wherein said method comprises:
- calculating desired values for the position or speed of the actuator in the fail-safe control unit based on which the actuator is controlled;
- determining actual values of the position or speed of the actuator using a single position measuring sensor or a single speed sensor;
- monitoring the actuator via the fail-safe control unit by comparing the desired values to the actual values;
- and
- providing a single hardware channel connecting the actuator to the fail-safe control unit and providing the actual values from the single position measuring sensor or the single speed sensor back to the fail-safe control unit via the single hardware channel.
2 more elements
A method for controlling an actuator of a winch, a hoist or a crane via a fail-safe control unit, wherein said method comprises:
- calculating desired values for the position or speed of the actuator in the fail-safe control unit based on which the actuator is controlled;
- determining actual values of the position or speed of the actuator using a single position measuring sensor or a single speed sensor;
- and
- monitoring the actuator via the fail-safe control unit by encoder-less monitoring.
1 more element
Dependencies are inferred from the claim text.