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:
Apr. 15, 2008
Filed:
Mar. 06, 2006
Yun Ren Ho, Naperville, IL (US);
Bernard Johnson, Oxford, MI (US);
Branko J. Horvat, Jr., Gilbert, IA (US);
John E. Bundy, East Aurora, NY (US);
Yun Ren Ho, Naperville, IL (US);
Bernard Johnson, Oxford, MI (US);
Branko J. Horvat, Jr., Gilbert, IA (US);
John E. Bundy, East Aurora, NY (US);
CNH America LLC, New Holland, PA (US);
Abstract
An agricultural combine has a variable displacement pump connected to four drive motors that drive four wheels. An electronic controller monitors the speed of each wheel and reduces the torque of the motor that drives the wheel when the wheel slips. The controller reduces the torque by reducing the specific displacement of the slipping motor. Once the wheel has ceased slipping, the controller increases the specific displacement of the motor back to its original displacement.