Controlling a digging operation of an industrial machine
AssigneeHarnischfeger Technologies, Inc.
InventorsJoseph Colwell, William Hren, David Wendt, Michael Linstroth
Life of this patent
Estimating the term…
Abstract
Controlling a digging operation of an industrial machine that includes a dipper, a crowd motor drive, and a controller. The crowd motor drive is configured to provide one or more control signals to a crowd motor, and the crowd motor is operable to provide a force to the dipper to move the dipper toward or away from a bank. The controller is connected to the crowd motor drive and is configured to monitor a characteristic of the industrial machine, identify an impact event associated with the dipper based on the monitored characteristic of the industrial machine, and set a crowd motoring torque limit for the crowd motor drive when the impact event is identified.
Claims20
An industrial machine comprising:
- a dipper;
- a crowd motor drive configured to provide one or more control signals to a crowd motor, the crowd motor being operable to provide a force to the dipper to move the dipper toward or away from a bank;
- and
- a controller connected to the crowd motor drive, the controller configured to
- monitor a characteristic of the industrial machine,
- identify an impact event associated with the dipper based on the monitored characteristic of the industrial machine, and
- set a crowd motoring torque limit for the crowd motor drive when the impact event is identified.
A method of controlling a digging operation of a direct current (“DC”) industrial machine, the industrial machine including a dipper and a crowd motor drive, the method comprising:
- monitoring, using a processor, a characteristic of the industrial machine;
- identifying, using the processor, an impact event associated with the dipper based on the monitored characteristic of the industrial machine, the impact event creating a tipping moment on the industrial machine;
- and
- setting, using the processor, a crowd motoring torque limit for the crowd motor drive when the impact event is identified.
Dependencies are inferred from the claim text.