US 12,069,974 B2
Agricultural vehicle with satellite and variable wheel speed turn control
Kevin Smith, Narvon, PA (US)
Assigned to CNH Industrial America LLC, New Holland, PA (US)
Filed by CNH Industrial America LLC, New Holland, PA (US)
Filed on Jun. 17, 2022, as Appl. No. 17/843,773.
Prior Publication US 2023/0403966 A1, Dec. 21, 2023
Int. Cl. A01B 69/04 (2006.01); G05D 1/00 (2006.01)
CPC A01B 69/008 (2013.01) [G05D 1/0278 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A steering system for a vehicle, the steering system comprising:
at least one first steerable wheel;
a first driver coupled to the at least one first steerable wheel and configured to drive the at least one first steerable wheel at variable rotation speeds;
at least one second steerable wheel opposite the at least one first steerable wheel;
a second driver coupled to the at least one second steerable wheel and configured to drive the at least one second steerable wheel at variable rotation speeds; and
a controller operably coupled to the first driver and the second driver and configured to:
enter a turn mode;
determine a first rotation speed of the at least one first steerable wheel and a second rotation speed of the at least one second steerable wheel to turn the vehicle and reach a defined second position from a first position, the second rotation speed being different than the first rotation speed;
output a first rotation speed signal to the first driver to rotate the at least one first steerable wheel at the first rotation speed and a second rotation speed signal to the second driver to rotate the at least one second steerable wheel at the second rotation speed in the turn mode; and
determine the vehicle has reached the defined second position based at least partially on the first rotation speed and the second rotation speed and responsively exit the turn mode.