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:
Feb. 14, 2006
Filed:
Mar. 03, 2004
Applicants:
Youichi Oshimi, Tokyo, JP;
Kazuhiko Abe, Kanagawa, JP;
Inventors:
Youichi Oshimi, Tokyo, JP;
Kazuhiko Abe, Kanagawa, JP;
Assignee:
Nissan Motor Co., Ltd., Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A fuel properties estimating apparatus for an internal combustion engine includes a controller. The controller is configured to determine an estimated component concentration of a component, such as alcohol, in a fuel for the engine in accordance with an actual air fuel ratio of the engine, and to perform a plurality of estimating operations to determine the estimated component concentration at predetermined timings after an engine start of the engine.