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. 19, 2011
Filed:
Mar. 20, 2008
Douglas W. Koehler, Peoria, IL (US);
Hyppolite Kuissi, Peoria, IL (US);
Sandeep J. Verghese, Peoria, IL (US);
Balbahadur Singh, Columbus, IN (US);
Douglas W. Koehler, Peoria, IL (US);
Hyppolite Kuissi, Peoria, IL (US);
Sandeep J. Verghese, Peoria, IL (US);
Balbahadur Singh, Columbus, IN (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A transmission for use with a machine is disclosed. The transmission may have a pump, a motor fluidly connected to receive pressurized fluid from the pump and propel the machine, and an operator input device configured to generate a signal indicative of an operator desired gear ratio of the transmission. The transmission may also have a controller in communication with the pump, the motor, and the operator input device. The controller may be configured to determine an desired gear ratio of the transmission as a function of the signal, and determine an efficiency loss of the transmission at the desired gear ratio. The controller may also be configured to select a known setting of at least one of the pump and motor that provides the desired gear ratio and accounts for the efficiency loss.