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.:
Date of Patent:
Jun. 16, 2020
Filed:
Dec. 15, 2017
Applicant:
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Inventor:
Akira Kato, Sunto-gun, JP;
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/00 (2006.01); F02D 41/10 (2006.01); F02D 13/02 (2006.01); F02M 26/06 (2016.01); F01L 1/047 (2006.01); F01L 1/344 (2006.01); F01L 13/00 (2006.01); F02D 41/24 (2006.01);
U.S. Cl.
CPC ...
F02D 41/0072 (2013.01); F02D 13/023 (2013.01); F02D 41/005 (2013.01); F02D 41/0007 (2013.01); F02D 41/10 (2013.01); F02D 41/2409 (2013.01); F01L 1/047 (2013.01); F01L 1/3442 (2013.01); F01L 13/0036 (2013.01); F01L 2250/02 (2013.01); F01L 2800/10 (2013.01); F01L 2820/042 (2013.01); F02D 2041/001 (2013.01); F02D 2200/101 (2013.01); F02D 2200/602 (2013.01); F02M 26/06 (2016.02);
Abstract
An operating range boundary for switching a cam for driving an intake valve (drive cam) is changed in a direction of increasing an engine load if a target EGR rate is predicted to increase across the contour line of the EGR rate during an acceleration operation. By changing to such a high load direction, a range in which a large cam is selected is enlarged. That is, switching of the drive cam from the large cam to a small cam is delayed.