Control system for an agricultural harvester cutter bar assembly

A method for controlling a cutter bar assembly of an agricultural harvester header comprising:

• performing, via a controller having a memory and a processor, a calibration process comprising:
• determining, via the controller, a plurality of calibration angles of a frame of the agricultural harvester header about a lateral rotation axis relative to a mounting component as the frame rotates about the lateral rotation axis relative to the mounting component;
• determining, via the controller, a plurality of sensor calibration distances between a sensor coupled to the frame of the agricultural harvester header and a ground surface, wherein each sensor calibration distance of the plurality of sensor calibration distances is determined while the frame of the agricultural harvester header is oriented at a respective calibration angle of the plurality of calibration angles;
• determining, via the controller, a plurality of offset distances based on the plurality of sensor calibration distances;
• and
• determining, via the controller, calibration data based on the plurality of calibration angles and the plurality of offset distances;
• determining, via the controller, an operational angle of the frame of the agricultural harvester header about the lateral rotation axis relative to the mounting component;
• determining, via the controller, a sensor operational distance between the sensor and the ground surface;
• and
• controlling, via the controller, a height of the cutter bar assembly above the ground surface based on the operational angle, the sensor operational distance, and the calibration data.

At least one non-transitory computer-readable medium comprising processor-executable instructions that when executed by at least one processor cause the at least one processor to:

• perform a calibration process comprising:
• determining a plurality of calibration angles of a frame of the agricultural harvester header about a lateral rotation axis relative to a mounting component as the frame rotates about the lateral rotation axis relative to the mounting component;
• determining a plurality of sensor calibration distances between a sensor coupled to the frame of the agricultural harvester header and a ground surface, wherein each sensor calibration distance of the plurality of sensor calibration distances is determined while the frame of the agricultural harvester header is oriented at a respective calibration angle of the plurality of calibration angles;
• determining a plurality of offset distances based on the plurality of sensor calibration distances;
• and
• determining calibration data based on the plurality of calibration angles and the plurality of offset distances;
• determine an operational angle of the frame of the agricultural harvester header about the lateral rotation axis relative to the mounting component;
• determine a sensor operational distance between the sensor and the ground surface;
• and
• control a height of the cutter bar assembly above the ground surface based on the operational angle, the sensor operational distance, and the calibration data.