Controlling a digging operation of an industrial machine
AssigneeHarnischfeger Technologies, Inc.
InventorsJoseph Colwell, William Hren, Mark Emerson, Michael Linstroth
Life of this patent
Estimating the term…
Abstract
Systems, methods, devices, and computer readable media for controlling a digging operation of an industrial machine. A method includes determining a hoist bail pull associated with the industrial machine, determining a crowd torque limit value for a crowd drive based on the determined hoist bail pull of the industrial machine, and setting a crowd torque limit of the crowd drive to the crowd torque limit value to limit a torque associated with a crowd motor to the crowd torque limit value.
Claims31
An industrial machine comprising:
- a dipper;
- a crowd drive configured to provide a control signal to a crowd actuator, the crowd actuator operable to provide a crowd force to the dipper to produce a crowd motion;
- and
- a controller connected to the crowd drive, the controller configured to
- determine a hoist force acting on the dipper,
- determine a crowd force limit value based on the determined hoist force, the crowd force limit value being determined as a function of the determined hoist force, and
- set a crowd force limit for the crowd drive to the determined crowd force limit value.
A method of controlling a digging operation of an industrial machine, the industrial machine including a dipper and a crowd drive, the method comprising:
- determining a force acting on the dipper;
- determining a crowd force limit value for the crowd drive based on the determined force acting on the dipper;
- and
- setting, with a controller, a crowd force limit of the crowd drive to the crowd force limit value to limit a crowd force associated with a crowd motion to the crowd force limit value,
- wherein determining the crowd force limit value includes determining the crowd force limit value based on the force acting on the dipper.
Dependencies are inferred from the claim text.