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:
Jan. 10, 2012
Filed:
Sep. 29, 2009
Applicant:
Gerard W. Malaczynski, Bloomfield Hills, MI (US);
Inventor:
Gerard W. Malaczynski, Bloomfield Hills, MI (US);
Assignee:
Delphi Technologies, Inc., Troy, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M 15/11 (2006.01);
U.S. Cl.
CPC ...
Abstract
A misfire detection system monitors engine speed fluctuations in the engine rotation frequency domain and identifies misfire when a phase angle locks onto a stable value rather than fluctuating randomly. After misfire detection, the system also performs cylinder or cylinder pair identification using predefined phase angle regions, where the identification process incorporate knowledge of what phase angle region a locked phase angle falls within.
Malaczynski, Gerard. (2012). Phase-based misfire detection in engine rotation frequency domain (U.S. Patent No. 8091410). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8091410
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile