Agricultural vehicle with satellite and variable wheel speed turn control

An agricultural vehicle, comprising:

• a chassis;
• a header carried by the chassis and comprising a cutting mechanism;
• and
• a steering system carried by the chassis, 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 agricultural 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 agricultural 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.

A method for steering a vehicle, the vehicle comprising at least one first steerable wheel, a first driver coupled to the at least one first steerable wheel, 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 a controller coupled to the first driver and the second driver, the method being performed by the controller and comprising:

• entering a turn mode;
• determining 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;
• outputting 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
• determining the vehicle has reached the defined second position based at least partially on the first rotation speed and the second rotation speed and responsively exiting the turn mode.