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, 2015
Filed:
Mar. 12, 2010
Applicants:
Koichi Hoshi, Susono, JP;
Takashi Watanabe, Gotemba, JP;
Yoshihisa Shinoda, Susono, JP;
Inventors:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01); F02D 19/06 (2006.01); F02D 41/00 (2006.01); F02D 41/02 (2006.01); F02M 43/04 (2006.01); F02D 19/08 (2006.01);
U.S. Cl.
CPC ...
F02D 19/061 (2013.01); F02D 19/0647 (2013.01); F02D 41/0027 (2013.01); F02D 41/0235 (2013.01); F02D 2041/0265 (2013.01); F02D 2200/0802 (2013.01); F02M 43/04 (2013.01); Y02T 10/36 (2013.01); F02D 19/0615 (2013.01); F02D 19/0692 (2013.01); F02D 19/081 (2013.01);
Abstract
A control device for an internal combustion engine is mounted on a vehicle, and includes an engine, a catalyst and a control unit. The engine is a bifuel engine using gas fuel and liquid fuel as its fuel source. The control unit makes an air fuel ratio rich and increases a proportion of the gas fuel if a temperature of the catalyst is higher than a predetermined upper limit value at a time when the liquid fuel is used.