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. 20, 2017
Filed:
May. 19, 2015
Caterpillar Inc., Peoria, IL (US);
Urvish Joshi, Dunlap, IL (US);
Travis Barnes, Metamora, IL (US);
Eric W. Cler, Oswego, IL (US);
Anand KrishnamurthyGopalan, Edwards, IL (US);
Eric A. Hutchison, Peoria, IL (US);
Kirti Tamhane, Dunlap, IL (US);
Andrew N. Schifferer, Batavia, IL (US);
Tyler Bowman, Canonsburg, PA (US);
Kevin Sergott, Dunlap, IL (US);
Matthew Mowers, Peoria, IL (US);
Daniel R. Puckett, Peoria, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A method for operating an internal combustion engine includes monitoring engine parameters using an electronic controller, determining a surge speed limit for the engine based on a compressor map, determining an offset engine speed based on a margin between the surge speed limit and an engine speed, determining a minimum engine speed based on the margin, applying the offset engine speed to an engine speed signal to provide an adjusted engine speed, and applying the adjusted engine speed to a desired engine speed when a speed of the engine approaches the surge speed limit.