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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 10408148 B1

PDFFull Text
Date of Patent:
Sep. 10, 2019

Filed:

Mar. 09, 2017

Supercharged engine control system

Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;

Inventor:

Tomohiro Yamazaki, Okazaki, JP;

Assignee:

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Thai Ba Trieu

Int. Cl.
CPC ...
F02D 23/00 (2006.01); F02D 41/02 (2006.01); F01N 13/00 (2010.01); F02B 37/18 (2006.01); F02D 41/14 (2006.01); F02D 23/02 (2006.01); F02D 41/00 (2006.01); F01N 9/00 (2006.01); F01N 3/035 (2006.01); F02D 41/18 (2006.01); F02B 37/00 (2006.01); F02B 37/007 (2006.01); F02B 37/013 (2006.01); F02B 37/22 (2006.01); F02B 37/24 (2006.01);
U.S. Cl.
CPC ...
F02D 41/029 (2013.01); F01N 9/00 (2013.01); F01N 13/008 (2013.01); F02B 37/183 (2013.01); F02D 23/02 (2013.01); F02D 41/0007 (2013.01); F02D 41/0245 (2013.01); F02D 41/1447 (2013.01); F01N 3/035 (2013.01); F01N 9/002 (2013.01); F01N 2560/06 (2013.01); F01N 2900/1404 (2013.01); F01N 2900/1602 (2013.01); F02B 37/001 (2013.01); F02B 37/004 (2013.01); F02B 37/007 (2013.01); F02B 37/013 (2013.01); F02B 37/18 (2013.01); F02B 37/22 (2013.01); F02B 37/24 (2013.01); F02D 41/0255 (2013.01); F02D 41/1448 (2013.01); F02D 41/18 (2013.01); F02D 2200/0812 (2013.01); F02D 2200/602 (2013.01); F02D 2250/18 (2013.01); Y02T 10/144 (2013.01); Y02T 10/26 (2013.01); Y02T 10/47 (2013.01);
Abstract

A control system includes a supercharged engine and an electronic control unit. The supercharged engine including: a combustion chamber; an exhaust passage; a turbine; and an exhaust catalyst. The turbine includes a turbine wheel, and a turbine control valve. The electronic control unit is configured to calculate a first exhaust gas temperature and a second exhaust gas temperature that are temperatures of exhaust gas flowing into the exhaust catalyst. The electronic control unit is configured to control the turbine control valve such that: the turbine control valve is set to the first valve opening degree when the first exhaust gas temperature is higher than the second exhaust gas temperature; and that the turbine control valve is set to the second valve opening degree when the second exhaust gas temperature is higher than the first exhaust gas temperature.

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