US 12,466,480 B2
Radial differential speed control system
Bryce A. Carnahan, Chapel Hill, NC (US); Julian A. Bellalbero, Raleigh, NC (US); and Kyle T. Martin, Holly Springs, NC (US)
Assigned to Deere & Company, Moline, IL (US)
Filed by DEERE & COMPANY, Moline, IL (US)
Filed on Oct. 5, 2022, as Appl. No. 17/938,115.
Prior Publication US 2024/0116569 A1, Apr. 11, 2024
Int. Cl. B62D 9/00 (2006.01); A01D 34/00 (2006.01); A01D 34/44 (2006.01); A01D 69/02 (2006.01); A01D 101/00 (2006.01); B62D 6/00 (2006.01)
CPC B62D 9/002 (2013.01) [A01D 34/006 (2013.01); A01D 34/44 (2013.01); A01D 69/02 (2013.01); B62D 6/002 (2013.01); B62D 6/007 (2013.01); A01D 2101/00 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A radial differential speed control system, comprising:
a controller that provides differential speed commands to a left front drive wheel and a right front drive wheel of a grass mowing machine based on a sensor input for a turning angle of a steerable rear wheel of the grass mowing machine;
the differential speed commands providing speed reduction commands to the left front drive wheel and right front drive wheel based upon a reference point on a centerline of the grass mowing machine that is rearward of an axis of the left and right front drive wheels and toward the steerable rear wheel.