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.

Date of Patent:
May. 05, 2009

Filed:

Apr. 19, 2007
Applicants:

Michiel J. Van Nieuwstadt, Ann Arbor, MI (US);

Emil G. Serban, Windsor, CA;

Inventors:

Michiel J. Van Nieuwstadt, Ann Arbor, MI (US);

Emil G. Serban, Windsor, CA;

Assignee:

Ford Global Technologies, LLC, Dearborn, MI (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01M 15/10 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of diagnosing an emission control system of an internal combustion engine, comprising during degraded performance of the emission control system, dynamically identifying a relationship between a plurality of operating conditions of the emission control system; and correlating the relationship to a plurality of potential sources of degraded performance of the emission control system to identify at least one degraded source among the plurality of potential sources.


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