The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 10, 2023
Filed:
Feb. 26, 2020
Applicant:
Deere & Company, Moline, IL (US);
Inventors:
Zackary P. Sipper, Raleigh, NC (US);
Jacob C. Kallara, Cary, NC (US);
Brent G. Rinholm, Fuquay Varina, NC (US);
Assignee:
DEERE & COMPANY, Moline, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01D 34/44 (2006.01); A01D 34/60 (2006.01); F02D 35/00 (2006.01); A01D 34/00 (2006.01); F02D 31/00 (2006.01); A01D 101/00 (2006.01);
U.S. Cl.
CPC ...
A01D 34/008 (2013.01); A01D 34/44 (2013.01); A01D 34/60 (2013.01); F02D 31/001 (2013.01); F02D 35/0007 (2013.01); A01D 2101/00 (2013.01); F02D 2200/602 (2013.01);
Abstract
An adaptive engine speed control system for a grass mowing machine having an internal combustion engine, a hydrostatic traction drive circuit and a hydraulic mowing circuit for operating a plurality of cutting units. A controller provides a traction feedback output signal if the grass mowing machine is moving at an actual ground speed that is below a pedal based desired ground speed, and uses the traction feedback output signal to command the internal combustion engine to an increased speed above a pedal based engine speed control range.