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. 08, 2008
Filed:
Nov. 09, 2005
Todd R. Kabrich, Creve Coeur, IL (US);
Tom Brosowke, Peoria, IL (US);
Vaibhav H. Shah, Peoria, IL (US);
Andrew W. Sloan, Peoria, IL (US);
Richard B. League, Peoria, IL (US);
Brian E. Lister, Edwards, IL (US);
Todd R. Kabrich, Creve Coeur, IL (US);
Tom Brosowke, Peoria, IL (US);
Vaibhav H. Shah, Peoria, IL (US);
Andrew W. Sloan, Peoria, IL (US);
Richard B. League, Peoria, IL (US);
Brian E. Lister, Edwards, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A method of shifting gears in a work machine includes modulating an oncoming clutch pressure via a first segment of a predetermined curve, and modulating the clutch pressure via a second segment of the predetermined curve after the occurrence of a predetermined relative velocity state of a work machine transmission. A work machine having an electronic controller with an embedded shifting control algorithm that includes means for modulating the oncoming clutch pressure via a first segment of a predetermined curve, and via a second segment of a predetermined curve having a net slope different from the first segment after the occurrence of a predetermined relative velocity state of the work machine transmission.