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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.:

US 9695755 B1

PDFFull Text
Date of Patent:
Jul. 04, 2017

Filed:

Aug. 02, 2016

Method and system for pre-ignition control

Applicant:

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

Inventors:

Chris Paul Glugla, Macomb, MI (US);

Robert Sarow Baskins, Grass Lake, MI (US);

James Matthew Kindree, South Lyon, MI (US);

Paul A. Pietrzyk, Beverly Hills, MI (US);

Mark Paul Guerrier, Gravesend, GB;

Rama Sanghvi, Northville, MI (US);

Assignee:

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

Attorneys:

Julia Voutyras

McCoy Russell LLP

Primary Examiner:

Nicholas J Weiss

Assistant Examiner:

Dapinder Singh

Int. Cl.
CPC ...
F01N 3/10 (2006.01); F01L 1/34 (2006.01); F02B 33/44 (2006.01); F02D 45/00 (2006.01); F02D 13/02 (2006.01); F02D 35/02 (2006.01); F01N 11/00 (2006.01); F02D 41/00 (2006.01); F02D 41/02 (2006.01); F02D 41/10 (2006.01); F02B 37/16 (2006.01); F02D 21/08 (2006.01); F02B 39/16 (2006.01); F02D 9/02 (2006.01); F02D 11/10 (2006.01); F02D 41/30 (2006.01); F02P 5/152 (2006.01); F02B 37/18 (2006.01);
U.S. Cl.
CPC ...
F02D 13/0261 (2013.01); F01N 3/10 (2013.01); F01N 11/005 (2013.01); F02B 37/168 (2013.01); F02B 37/183 (2013.01); F02B 39/16 (2013.01); F02D 9/02 (2013.01); F02D 11/105 (2013.01); F02D 13/0203 (2013.01); F02D 21/08 (2013.01); F02D 35/027 (2013.01); F02D 41/0007 (2013.01); F02D 41/0025 (2013.01); F02D 41/025 (2013.01); F02D 41/10 (2013.01); F02D 41/107 (2013.01); F02D 41/3005 (2013.01); F02P 5/1528 (2013.01); F02B 37/18 (2013.01); F02B 2039/168 (2013.01); F02D 35/028 (2013.01); F02D 2041/001 (2013.01); F02D 2041/0265 (2013.01); F02D 2200/0802 (2013.01); F02D 2200/602 (2013.01); Y02T 10/144 (2013.01); Y02T 10/18 (2013.01); Y02T 10/26 (2013.01);
Abstract

Methods and systems are provided for addressing pre-ignition occurring while operating with blow-though air delivery. A variable cam timing device used to provide positive intake to exhaust valve overlap is adjusted in response to an indication of pre-ignition to transiently reduce valve overlap. Pre-ignition mitigating load limiting and enrichment applied during a blow-through mode is adjusted differently from those applied when blow-through air is not being delivered.

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