System and method for row unit disk offset calibration
AssigneeCNH Industrial America LLC
InventorsChristopher Schoeny, Trevor Philip Stanhope
Life of this patent
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Abstract
A system comprising an actuator configured to couple to a closing link and to a frame of an agricultural row unit, a monitoring system comprising a sensor, and a controller comprising a memory and a processor. The closing link is configured to pivotally couple to the frame and the actuator is configured to drive the closing link to rotate relative to the frame to control a closing depth of a closing disc rotatably coupled to the closing link. The sensor is configured to output a sensor signal indicative of an extension length of the actuator. The controller is communicatively coupled to the sensor, and the controller is configured to determine the extension length of the actuator based on the sensor signal.
Claims20
A system comprising:
- an actuator configured to couple to a closing link and to a frame of an agricultural row unit, wherein the closing link is configured to pivotally couple to the frame, and the actuator is configured to drive the closing link to rotate relative to the frame to control a closing depth of a closing disc rotatably coupled to the closing link;
- a monitoring system comprising a sensor configured to output a sensor signal indicative of an extension length of the actuator;
- and
- a controller comprising a memory and a processor, wherein the controller is communicatively coupled to the sensor, and the controller is configured to:
- determine the extension length of the actuator at a minimum extension length, a maximum extension length, and a calibration extension length based on the sensor signal;
- determine an offset ratio based on the minimum extension length, the maximum extension length, and the calibration extension length;
- compare the offset ratio to a target offset ratio;
- and
- output a control signal to initiate operation in response to the offset ratio matching the target offset ratio.
A method for determining wear on an opener disc and a closing disc, the method comprising:
- determining, via a controller, a calibration extension length of an actuator based on a sensor signal while the closing disc and the opener disc are in contact with a common plane;
- determining, via the controller, an offset ratio based on the calibration extension length, a minimum extension length, and a maximum extension length;
- and
- output, via the controller, a control signal to initiate operation in response to the offset ratio matching a target offset ratio.
A non-transitory computer readable medium for detecting excessive wear on an opener disc, a closing disc, or both, the non-transitory computer readable medium comprising:
- receiving a first sensor signal indicative of an actuator extension length of an actuator at a minimum vertical offset, a maximum vertical offset, and a calibration extension length;
- determining an offset ratio based on the minimum vertical offset, the maximum vertical offset, and the calibration extension length;
- comparing the offset ratio to a target offset ratio;
- and
- outputting a control signal to initiate operation in response to the offset ratio matching the target offset ratio.
Dependencies are inferred from the claim text.