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. 01, 2013
Filed:
Nov. 01, 2012
Caterpillar Inc., Peoria, IL (US);
Kevin Davis, Washington, IL (US);
Adam Nackers, East Peoria, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A method regulates a machine having a continuously variable transmission (CVT) and service brakes in a manner to reduce power transmission through the applied brakes. The method utilizes an unaltered torque-to-speed curve that relates the torque output to the speed output of the CVT. An under-run curve may be applied to the torque-to-speed curve and that corresponds to a target speed. The method may receive an operator input signal indicative of a braking event. In response, the method may shift the torque-to-speed curve to limit the output torque available. The method may also adjust the under-run curve in a manner that maintains correspondence with the target speed.