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:
Sep. 28, 2010
Filed:
Mar. 25, 2008
Applicants:
Ken John Behr, Farmington Hills, MI (US);
Has R Patel, Canton, MI (US);
Michael Igor Kluzner, Oak Park, MI (US);
Bob Roy Jentz, Westland, MI (US);
Inventors:
Ken John Behr, Farmington Hills, MI (US);
Has R Patel, Canton, MI (US);
Michael Igor Kluzner, Oak Park, MI (US);
Bob Roy Jentz, Westland, MI (US);
Assignee:
Fors Global Technologies, LLC, Dearborn, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/00 (2006.01); F02D 41/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
Air/fuel imbalance monitoring systems and methods for monitoring air/fuel ratio imbalance of an internal combustion engine are disclosed. In one embodiment, an oxygen sensor is sampled above cylinder firing frequency and a ratio of data from at least one window over a total number of windows is determined. The approach can be used to indicate imbalances between engine cylinders.