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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 10047704 B1

PDFFull Text
Date of Patent:
Aug. 14, 2018

Filed:

Mar. 14, 2016

Control device for internal combustion engine

Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;

Inventor:

Daishi Takahashi, Kanagawa-ken, JP;

Assignee:

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, JP;

Attorney:

Hunton Andrews Kurth LLP

Primary Examiner:

Joseph Dallo

Assistant Examiner:

Scott A Reinbold

Int. Cl.
CPC ...
F02M 26/33 (2016.01); F01P 3/02 (2006.01); F02D 41/00 (2006.01); F02D 41/26 (2006.01); F01P 7/16 (2006.01); F02D 41/04 (2006.01); F02D 41/06 (2006.01); F02D 41/24 (2006.01); F02M 26/28 (2016.01); F02M 26/30 (2016.01);
U.S. Cl.
CPC ...
F02M 26/33 (2016.02); F01P 3/02 (2013.01); F01P 7/16 (2013.01); F02D 41/005 (2013.01); F02D 41/0077 (2013.01); F02D 41/045 (2013.01); F02D 41/068 (2013.01); F02D 41/2422 (2013.01); F02D 41/26 (2013.01); F01P 2003/021 (2013.01); F01P 2003/024 (2013.01); F02D 2200/0404 (2013.01); F02M 26/28 (2016.02); F02M 26/30 (2016.02); Y02T 10/47 (2013.01);
Abstract

An EGR device is operated and EGR is executed, when a temperature of a first cooling water that cools a cylinder block and a cylinder head is higher than an EGR allowable temperature, and a working point of the internal combustion engine that is fixed by a load and an engine speed is in an EGR execution region. The EGR execution region is variable with respect to a temperature of the second cooling water (the temperature of the second cooling water is lower than the first cooling water) that cools the intake port, and the EGR execution region is narrowed to a high load side in a case where the temperature of the second cooling water is lower than a threshold value temperature, as compared with a case where the temperature of the second cooling water is higher than the threshold value temperature.

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