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:
Oct. 14, 2014
Filed:
May. 31, 2012
Michael Beyer, Chillicothe, IL (US);
Adam Vaccari, Peoria, IL (US);
Christopher Rhoades, Metamora, IL (US);
Adam Nackers, East Peoria, IL (US);
Brian Lister, Edwards, IL (US);
Mike Barngrover, Brimfield, IL (US);
Michael Beyer, Chillicothe, IL (US);
Adam Vaccari, Peoria, IL (US);
Christopher Rhoades, Metamora, IL (US);
Adam Nackers, East Peoria, IL (US);
Brian Lister, Edwards, IL (US);
Mike Barngrover, Brimfield, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A method of controlling a transmission () for a machine is disclosed. The transmission includes a variator (). The transmission is operated in a first operating range (). It is determined whether a current speed ratio is within a first predetermined range of a speed ratio associated with a first synchronous point () lying between the first operating range () and the second operating range (). A desired speed ratio is determined and it is determined if the desired speed ratio is within a second predetermined range of the speed ratio. A shift between the first and second operating ranges () is prevented and the variator () is controlled to hold the current speed ratio if the desired speed ratio is within the second predetermined range or the rate of acceleration of the machine is below the threshold acceleration.