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:
Dec. 31, 2019
Filed:
Jun. 14, 2018
Deere & Company, Moline, IL (US);
Thomas D. Bebernes, Ottumwa, IA (US);
Thomas A. Nichols, Eldon, IA (US);
David V. Rotole, Bloomfield, IA (US);
Walter C. Wright, Pella, IA (US);
Eric R. Lang, Newhall, IA (US);
Mitchell R. Usasz, Ottumwa, IA (US);
DEERE & COMPANY, Moline, IL (US);
Abstract
A steering system and method for a vehicle having steerable front and rear wheels has rear hydraulic steering device that may be coupled to one or more of the rear wheels. A rear valve assembly may hydraulically control the rear hydraulic steering device to steer the rear wheels based upon a rear steering command from a controller. In a manual steering mode, the controller does not determine a rear steering command for the rear valve assembly such that the rear wheels are freely rotatable. In a rear steering assist mode, the controller determines the rear steering command based upon, at least in part, the manual steering input.