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:
May. 08, 2012
Filed:
Feb. 05, 2009
Eric D. Stemler, Peoria, IL (US);
Matthew Mowers, Wilmington, IL (US);
Evan E. Jacobson, Edwards, IL (US);
Eric D. Stemler, Peoria, IL (US);
Matthew Mowers, Wilmington, IL (US);
Evan E. Jacobson, Edwards, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A machine () has an internal combustion engine () operating in response to a control signal provided by an engine governor (). The engine () provides a torque output to a machine system providing a machine function. An electronic controller () determines a current operating state of the engine () and a torque utilization of the machine system, and compares the current operating state of the engine () with the torque utilization in an engine droop function (). A change to an engine speed () setting of the engine () is instructed in response to a change in the torque signal. Such change is to increase the engine speed () setting when the torque utilization is increasing, and to decrease the engine speed () setting when the torque utilization is decreasing.