US 12,245,550 B2
Calibration system for an agricultural header
Cory Douglas Hunt, Millersville, PA (US)
Assigned to CNH Industrial America LLC, New Holland, PA (US)
Filed by CNH Industrial America LLC, New Holland, PA (US)
Filed on Dec. 22, 2020, as Appl. No. 17/130,178.
Claims priority of provisional application 62/952,920, filed on Dec. 23, 2019.
Prior Publication US 2021/0185919 A1, Jun. 24, 2021
Int. Cl. A01D 41/14 (2006.01); A01D 41/127 (2006.01); A01D 57/04 (2006.01); A01D 57/12 (2006.01); G01C 25/00 (2006.01); A01D 34/14 (2006.01)
CPC A01D 41/141 (2013.01) [A01D 41/127 (2013.01); A01D 57/04 (2013.01); A01D 57/12 (2013.01); G01C 25/005 (2013.01); A01D 34/14 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A calibration system for an agricultural header, comprising:
a terrain sensor supported on a reel arm that is pivotally coupled to a frame of the agricultural header;
a controller comprising a memory and a processor, wherein the processor is configured to:
receive, from the terrain sensor, a first distance signal indicative of a first distance between the reel arm and a terrain feature while the reel arm is at a first position relative to the frame of the agricultural header;
control a reel actuator to move the reel arm from the first position to a second position relative to the frame of the agricultural header;
receive, from the terrain sensor, a second distance signal indicative of a second distance between the reel arm and the terrain feature while the reel arm is at the second position relative to the frame of the agricultural header;
determine a calibration curve indicative of a plurality of offset distances of the reel arm based on the first position of the reel arm, the first distance between the reel arm and the terrain feature, the second position of the reel arm, and the second distance between the reel arm and the terrain feature; and
select an offset distance of the plurality of offset distances based on an operational position of the reel arm and the calibration curve.