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:
Jun. 30, 2015

Filed:

May. 25, 2012
Applicants:

Keitarou Minami, Kariya, JP;

Hideaki Ichihara, Obu, JP;

Hiroyuki Takezoe, Kariya, JP;

Hiroshi Katsurahara, Okazaki, JP;

Inventors:

Keitarou Minami, Kariya, JP;

Hideaki Ichihara, Obu, JP;

Hiroyuki Takezoe, Kariya, JP;

Hiroshi Katsurahara, Okazaki, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/26 (2006.01); F02D 41/00 (2006.01); F02D 41/14 (2006.01); G01M 15/11 (2006.01); F02M 25/07 (2006.01);
U.S. Cl.
CPC ...
F02D 41/0072 (2013.01); F02D 41/0052 (2013.01); F02D 41/1497 (2013.01); F02D 2200/1015 (2013.01); Y02T 10/47 (2013.01); G01M 15/11 (2013.01);
Abstract

A cylinder-inflow EGR gas quantity determining arrangement estimates or senses a value of a cylinder-inflow EGR gas quantity, which is a quantity of EGR gas that flows into a cylinder of an internal combustion engine. A misfire predicting arrangement predicts whether misfire occurs based on the value of the cylinder-inflow EGR gas quantity and an operational state of the internal combustion engine. A misfire-avoidance control arrangement executes at least one misfire-avoidance control operation to avoid the misfire when the misfire predicting arrangement predicts that the misfire occurs.


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