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:
Jan. 04, 2011
Filed:
Jun. 11, 2008
Applicants:
Seiji Ogura, Susono, JP;
Hisashi Ohki, Numadu, JP;
Takashi Koyama, Susono, JP;
Inventors:
Assignee:
Toyota Jidosha Kabushiki Kaisha, Toyota-Shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
F02B 3/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
According to an internal combustion engine fuel injection control apparatus and control method, when an operating region of the engine shifts from a fuel cut region in which no fuel is injected to a low load region in which a small amount of fuel is injected, or visa versa, at least one pilot injection is executed ahead of a main injection in the low load region, and the number of pilot injections is determined according to the engine coolant temperature. This injection control makes it possible to ensure drivability while suppressing the amount of HC produced.