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:
Jun. 30, 2009
Filed:
Dec. 13, 2007
Michael Barngrover, Peoria, IL (US);
Thomas M. Sopko, East Peoria, IL (US);
Brian D. Kuras, Metamora, IL (US);
Brian D. Hoff, East Peoria, IL (US);
Michael Barngrover, Peoria, IL (US);
Thomas M. Sopko, East Peoria, IL (US);
Brian D. Kuras, Metamora, IL (US);
Brian D. Hoff, East Peoria, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A system and method for optimizing machine performance using speed shaping in a machine having an engine and a drivetrain implementing engine underspeed module receives a throttle command requesting an increase in engine speed and transmits the throttle command to the engine. If the requested increase exceeds a predetermined function, the predetermined function is forwarded to the engine underspeed module as a speed standard. The engine underspeed module determines whether the actual engine speed attained by the engine is less than the speed standard by more than a predetermined gap value and, if so, reduces the power required by the drivetrain to avoid lugging of the engine.