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. 24, 2017
Filed:
Aug. 27, 2012
Haibo Guo, Naperville, IL (US);
Peter J. Dix, Naperville, IL (US);
Garth H. Bulgrien, Ephrata, PA (US);
Brian A. Hartman, Valparaiso, IL (US);
Robert C. Prasse, Chicago, IL (US);
Cecil A. Weeramantry, Darien, IL (US);
Brian E. Felsing, Park Ridge, IL (US);
Haibo Guo, Naperville, IL (US);
Peter J. Dix, Naperville, IL (US);
Garth H. Bulgrien, Ephrata, PA (US);
Brian A. Hartman, Valparaiso, IL (US);
Robert C. Prasse, Chicago, IL (US);
Cecil A. Weeramantry, Darien, IL (US);
Brian E. Felsing, Park Ridge, IL (US);
CNH Industrial America LLC, New Holland, PA (US);
Abstract
A swash plate angle for a hydrostatic power unit of a continuously variable hydromechanical transmission is determined using a feedforward compensation term, to reduce reliance on closed loop control. The feedforward term is based on knowledge of the hydrostatic power unit determined as a function of knowledge of certain parameters, including, but not limited to, hydrostatic power unit pressure, swash plate angle, desired hydrostatic power unit ratio, and pump speed.