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:
Sep. 11, 2012
Filed:
Apr. 28, 2008
Takashi Koyama, Susono, JP;
Hisashi Ohki, Numazu, JP;
Masahiro Nagae, Aichi-ken, JP;
Kiyoshi Fujiwara, Susono, JP;
Tomohiro Kaneko, Mishima, JP;
Takafumi Yamada, Susono, JP;
Hajime Shimizu, Susono, JP;
Seiji Ogura, Susono, JP;
Takashi Koyama, Susono, JP;
Hisashi Ohki, Numazu, JP;
Masahiro Nagae, Aichi-ken, JP;
Kiyoshi Fujiwara, Susono, JP;
Tomohiro Kaneko, Mishima, JP;
Takafumi Yamada, Susono, JP;
Hajime Shimizu, Susono, JP;
Seiji Ogura, Susono, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi-ken, JP;
Abstract
An object of the present invention is to control the discharge amount of unburned fuel components in the internal combustion engine. According the present invention, the number of times of execution of sub fuel injection is changed based on the operation range within which the operation state of the internal combustion engine falls so that the lower the engine load of the internal combustion engine is, and the lower the number of engine revolutions of the internal combustion engine is, the more the number of times of execution of sub fuel injection is increased. Furthermore, the lower the atmospheric pressure is, the lower the temperature of the cooling water of the internal combustion engine is, or the lower the temperature of the intake air of the internal combustion engine is, the more an operation range in which the number of times of execution of sub fuel injection is large is expanded to higher loads and higher revolutions.