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. 10, 2015
Filed:
Oct. 04, 2011
Applicants:
Kazuhiro Higuchi, Ichinomiya, JP;
Koji Ishizuka, Chita-gun, JP;
Inventors:
Kazuhiro Higuchi, Ichinomiya, JP;
Koji Ishizuka, Chita-gun, JP;
Assignee:
Denso Corporation, Kariya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/30 (2006.01); F02D 41/00 (2006.01); F02D 19/08 (2006.01); F02D 19/06 (2006.01);
U.S. Cl.
CPC ...
F02D 41/0025 (2013.01); F02D 19/088 (2013.01); F02D 41/0087 (2013.01); F02D 2200/0612 (2013.01); F02D 2200/101 (2013.01); Y02T 10/36 (2013.01); F02D 19/0649 (2013.01); F02D 19/084 (2013.01);
Abstract
A multicylinder engine is provided with a fuel injector for each cylinder. An ECU defines a fuel injection condition of the fuel injector based on an engine driving condition and executes a fuel injection control for each cylinder based on the defined fuel injection condition. The ECU computes an engine speed with respect to each cylinder. While the engine is running, the fuel injection condition is operated in an operation cylinder. A fuel property is determined based on the engine speed of the operation cylinder and an engine speed of a non-operation cylinder.