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:
Nov. 27, 2018

Filed:

Sep. 01, 2016
Applicant:

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

Inventors:

Ray Host, Mount Clemens, MI (US);

Robert Andrew Wade, Plymouth, MI (US);

Anthony Morelli, Troy, MI (US);

Assignee:

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

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F02B 37/12 (2006.01); F01N 3/20 (2006.01);
U.S. Cl.
CPC ...
F01N 3/2006 (2013.01); F02B 37/12 (2013.01); F05B 2220/40 (2013.01);
Abstract

Methods and systems are provided for expediting light-off of a catalyst during engine cold-start conditions by inhibiting rotation of the turbocharger shaft. In one example, a method may include inhibiting rotation of the turbocharger shaft during engine cold-start conditions until the catalyst is operating at a desired efficiency. The rotation of the shaft may be inhibited via either a passive or an active shaft locking mechanism.


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