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:
Feb. 19, 2019
Filed:
Mar. 05, 2015
Caterpillar Motoren Gmbh & Co. KG, Kiel, DE;
Eike Joachim Sixel, Kiel, DE;
Hannes Marscheider, Schüldorf, DE;
Daniel Wester, Felde, DE;
Arvind Sivasubramanian, Peoria, IL (US);
Travis Barnes, Metamora, IL (US);
Chris Gallmeyer, Peoria, IL (US);
Jedediah A. Frey, Muskegon, MI (US);
Andrew J. Neaville, Mt. Pulaski, IL (US);
Robert Calderwood, Peoria, IL (US);
Caterpillar Motoren GmbH & Co. KG, Kiel, DE;
Abstract
A method of evaluating operability of a gaseous fuel admission valve of an internal combustion engine is disclosed. The method includes operating the internal combustion engine on gaseous fuel by repeatedly actuating the gaseous fuel admission valve. The method further includes measuring a sequence of temporal developments of an electrical operation parameter respectively associated with an actuation of the gaseous fuel admission valve. The sequence includes a first temporal development to be evaluated and a plurality of temporal developments preceding the first temporal development. The method also includes evaluating operability of the gaseous fuel admission valve based on the first temporal development of the measured sequence and at least one of the plurality of preceding temporal developments of the measured sequence.