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:
Oct. 02, 2018

Filed:

Jun. 08, 2017
Applicant:

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

Inventor:

Koki Matsushita, Miyoshi, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 17/02 (2006.01); F01L 13/00 (2006.01); F02D 41/04 (2006.01); F02D 41/06 (2006.01); F02D 41/00 (2006.01); F02N 19/00 (2010.01); F02N 99/00 (2010.01); F02D 37/02 (2006.01);
U.S. Cl.
CPC ...
F02D 17/02 (2013.01); F01L 13/0005 (2013.01); F02D 37/02 (2013.01); F02D 41/0087 (2013.01); F02D 41/042 (2013.01); F02D 41/065 (2013.01); F02N 19/005 (2013.01); F02N 99/006 (2013.01); F01L 2013/001 (2013.01); F02D 2041/0012 (2013.01);
Abstract

An internal combustion engine includes cylinders that are divided into a first cylinder group and a second cylinder group, a cylinder reduction mechanism that holds intake valves and exhaust valves of the first cylinder group in closed states so as to establish a reduced-cylinder state. When the engine is stopped in the reduced-cylinder state, the electronic control unit provided in the engine starts the engine by ignition, by executing fuel injection and ignition in an expansion-stroke cylinder. When the first cylinder group includes an exhaust-stroke cylinder, the engine is started by ignition through fuel injection and ignition in the expansion-stroke cylinder, after a piston is moved in a reverse direction through fuel injection and ignition in the exhaust-stroke cylinder. When the first cylinder group does not include the exhaust-stroke cylinder, the engine is started by ignition, through fuel injection and ignition in the expansion-stroke cylinder and an intake-stroke cylinder.


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