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:
Mar. 06, 2012
Filed:
Jul. 18, 2008
Takashi Koyama, Susono, JP;
Hisashi Ohki, Numazu, JP;
Kiyoshi Fujiwara, Susono, JP;
Tomohiro Kaneko, Mishima, JP;
Takahumi Yamada, Toyota, JP;
Takashi Koyama, Susono, JP;
Hisashi Ohki, Numazu, JP;
Kiyoshi Fujiwara, Susono, JP;
Tomohiro Kaneko, Mishima, JP;
Takahumi Yamada, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi-Ken, JP;
Abstract
A fuel injection valve coupled to a common rail is provided. When fuel injection is carried out, the fuel pressure in the fuel injection valve pulsates. An interval between a pilot injection and a main injection is set so that the main injection is carried out at a zero gradient timing as a timing when the gradient of the fuel pressure in the fuel injection valve after the pilot injection is approximately equal to zero. Owing to a fuel injection control apparatus and a fuel injection control method for an internal combustion engine that perform the above-mentioned control, the fuel injection amount for the subsequent fuel injection following the preceding fuel injection can be reliably held equal to a normal amount.