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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 9644564 B1

PDFFull Text
Date of Patent:
May. 09, 2017

Filed:

May. 22, 2015

Method and system for pre-ignition control

Applicant:

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

Inventors:

Chris Paul Glugla, Macomb, MI (US);

Paul Charles Mingo, Farmington Hills, MI (US);

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

Sue Kay Wagers, Newport, MI (US);

Assignee:

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

Attorneys:

Julia Voutyras

McCoy Russell LLP

Primary Examiner:

Hung Q Nguyen

Assistant Examiner:

Xiao Mo

Int. Cl.
CPC ...
F02D 41/30 (2006.01); F02D 41/00 (2006.01); F02D 17/02 (2006.01); F02D 28/00 (2006.01); F02D 35/02 (2006.01); F02P 17/12 (2006.01); F02D 41/14 (2006.01); F02B 37/00 (2006.01); F02D 13/02 (2006.01); F02D 19/08 (2006.01); F02B 75/12 (2006.01);
U.S. Cl.
CPC ...
F02D 41/30 (2013.01); F02D 17/02 (2013.01); F02D 28/00 (2013.01); F02D 35/021 (2013.01); F02D 35/027 (2013.01); F02D 41/0002 (2013.01); F02D 41/0087 (2013.01); F02D 41/1475 (2013.01); F02P 17/12 (2013.01); F02B 37/00 (2013.01); F02B 2075/125 (2013.01); F02D 13/0207 (2013.01); F02D 13/0219 (2013.01); F02D 19/084 (2013.01); F02D 41/1446 (2013.01); F02D 41/3094 (2013.01); F02D 2041/0012 (2013.01); F02D 2200/1015 (2013.01); Y02T 10/123 (2013.01); Y02T 10/36 (2013.01); Y02T 10/42 (2013.01);
Abstract

Methods and systems are provided for addressing pre-ignition that may be induced in response to actions taken to mitigate a cylinder misfire. An amount of engine load limiting applied may be adjusted to reduce the likelihood pre-ignition while also addressing component over-temperature issues. By limiting an engine load while shutting off fuel in a misfiring cylinder, and while combusting a lean air-fuel mixture in the remaining cylinders, pre-ignition induced by the misfire-mitigating lean combustion conditions can be reduced.

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