US 12,402,549 B2
Header height correction system and method
Mohan A. Vadnere, Pune (IN); Geetika K. Purohit, Pune (IN); Mitchell R. Usasz, Ottumwa, IA (US); and Nicholas J. Depenbusch, Ottumwa, IA (US)
Assigned to Deere & Company, Moline, IL (US)
Filed by DEERE & COMPANY, Moline, IL (US)
Filed on Aug. 16, 2022, as Appl. No. 17/888,984.
Prior Publication US 2024/0057522 A1, Feb. 22, 2024
Int. Cl. A01B 63/10 (2006.01); A01D 41/14 (2006.01); F15B 1/02 (2006.01); F15B 13/04 (2006.01); A01B 63/00 (2006.01); A01B 73/04 (2006.01); F15B 11/08 (2006.01); F15B 11/16 (2006.01); F15B 13/044 (2006.01)
CPC A01B 63/10 (2013.01) [A01D 41/141 (2013.01); F15B 1/021 (2013.01); F15B 13/0401 (2013.01); A01B 63/008 (2013.01); A01B 73/044 (2013.01); F15B 11/08 (2013.01); F15B 11/16 (2013.01); F15B 13/044 (2013.01); F15B 2211/212 (2013.01); F15B 2211/426 (2013.01); F15B 2211/526 (2013.01); F15B 2211/7052 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An agricultural machine for rapidly moving a header to a harvesting position comprising:
a main frame supported above the ground by ground engaging mechanisms;
a lift arm pivotably coupled to the main frame;
the header which is configured to harvest crop, wherein the header is coupled to and supported above the ground by the lift arm;
a lift actuator configured to extend and contract to pivot the lift arm and the header relative to the main frame;
a float actuator pivotably coupled to the lift arm and the main frame to support the header above the ground;
at least one valve fluidly coupled to the float actuator and configured to move between open and closed positions to change pressure in the float actuator;
a controller configured to send electrical signals to the at least one valve to execute a rapid height correction algorithm, in which the controller adjusts at least one of the float actuator and the lift actuator causing a change in height of the header relative to the ground, in response to receiving terrain data including ground contours and receiving correction data associated with at least one of a current height of the header and a current pressure of the float actuator.