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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 10669979 B1

PDFFull Text
Date of Patent:
Jun. 02, 2020

Filed:

Aug. 16, 2016

Control device for internal combustion engine

Applicant:

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

Inventors:

Yoshihito Kanno, Numazu, JP;

Gohki Kinoshita, Isehara, JP;

Hiroki Morita, Hiratsuka, JP;

Yutaro Kawatsu, Susono, JP;

Assignee:

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, JP;

Attorney:

Hunton Andrews Kurth LLP

Primary Examiner:

Sizo B Vilakazi

Assistant Examiner:

Brian R Kirby

Int. Cl.
CPC ...
F02N 11/08 (2006.01); F02D 29/02 (2006.01); F02D 41/00 (2006.01); B60K 6/365 (2007.10); B60W 20/16 (2016.01); B60K 6/445 (2007.10); B60W 10/08 (2006.01); B60W 10/06 (2006.01); F02B 75/18 (2006.01); F02D 13/06 (2006.01); F02D 17/02 (2006.01); F02D 41/26 (2006.01); F02N 19/00 (2010.01); B60K 6/44 (2007.10);
U.S. Cl.
CPC ...
F02N 11/0814 (2013.01); B60K 6/365 (2013.01); B60K 6/445 (2013.01); B60W 10/06 (2013.01); B60W 10/08 (2013.01); B60W 20/16 (2016.01); F02B 75/18 (2013.01); F02D 13/06 (2013.01); F02D 17/02 (2013.01); F02D 29/02 (2013.01); F02D 41/0087 (2013.01); F02D 41/26 (2013.01); B60K 6/44 (2013.01); F02N 2019/008 (2013.01); F02N 2200/023 (2013.01); F02N 2300/2002 (2013.01); F02N 2300/30 (2013.01); Y02T 10/18 (2013.01); Y02T 10/48 (2013.01);
Abstract

A control device is configured to read a required operation point of the internal combustion engine at the moment of restart following after intermittent stoppage, and to execute, when it is determined that the required operation point belongs to a reduced-cylinder operation allowed region and also to a reduced-cylinder operation restricted region which lies on a high load side of the reduced-cylinder operation allowed region, an all-cylinder operation and then move into a reduced-cylinder operation. When it is determined that the required operation point belongs to the reduced-cylinder operation allowed region but not to the reduced-cylinder operation restricted region, the control device is configured to switch the engine to the reduced-cylinder operation without execution of the all-cylinder operation.

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