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:
Dec. 31, 2019
Filed:
Mar. 11, 2014
Applicant:
Westport Power Inc., Vancouver, CA;
Inventors:
Jian Huang, Richmond, CA;
Sandeep Munshi, Delta, CA;
Assignee:
WESTPORT POWER INC., Vancouver, BC, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/22 (2006.01); F02D 41/14 (2006.01); F02D 19/06 (2006.01); F02D 29/02 (2006.01); F02D 35/02 (2006.01); F02D 41/00 (2006.01);
U.S. Cl.
CPC ...
F02D 41/22 (2013.01); F02D 19/06 (2013.01); F02D 29/02 (2013.01); F02D 35/024 (2013.01); F02D 35/027 (2013.01); F02D 41/14 (2013.01); F02D 41/1438 (2013.01); F02D 41/221 (2013.01); F02D 19/0647 (2013.01); F02D 35/028 (2013.01); F02D 41/008 (2013.01); F02D 2041/224 (2013.01); F02D 2200/0612 (2013.01); F02D 2200/0616 (2013.01); F02D 2200/0618 (2013.01); Y02T 10/36 (2013.01); Y02T 10/40 (2013.01);
Abstract
A method and apparatus for in situ operating an internal combustion engine comprising determining at least one combustion characteristic for a combustion chamber of the internal combustion engine, comprising an actual heat release signal for the combustion chamber; and inputting the actual heat release signal into a diagnostic logic tree for diagnosing changes in combustion characteristics due to at least one of: a malfunctioning fuel injector, a start of combustion timing error; and a change in fuel quality; and performing a mitigation technique to compensate for the changes in combustion characteristics.