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. 07, 2004
Filed:
Mar. 18, 2003
Applicant:
Inventors:
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/00 ;
U.S. Cl.
CPC ...
F01N 3/00 ;
Abstract
A method for predicting oxygen capacity of an LNT during storage phase of such LNT and the amount of NOx stored in the LNT during purge phase thereof as a function of the time history of an output signal produced by an exhaust gas sensor disposed downstream of the LNT. Oxygen storage capacity of the (LNT) is estimated by integrating output signal over time to determine the amount of oxygen stored in the LNT as function of time.