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:
Oct. 06, 2009
Filed:
Aug. 27, 2007
Satoshi Yamaguchi, Saitama-ken, JP;
Mamoru Hasegawa, Saitama-ken, JP;
Naoto Kitayama, Saitama-ken, JP;
Hideki Sakamoto, Saitama-ken, JP;
Satoshi Yamaguchi, Saitama-ken, JP;
Mamoru Hasegawa, Saitama-ken, JP;
Naoto Kitayama, Saitama-ken, JP;
Hideki Sakamoto, Saitama-ken, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A control system for an internal combustion engine, which makes it possible to estimate a fuel property parameter indicative of a property of fuel in use, in a plurality of operation modes of the engine, respectively, to thereby increase the chances of estimation of the fuel property parameter, and select an appropriate one from the estimated fuel property parameters to thereby more appropriately control the engine. The fuel property parameter is estimated when the detected operating conditions of the engine correspond to any of a plurality of operation modes. Depending on a plurality of fuel property parameters estimated in respective operation modes, one of the fuel property parameters is determined as the fuel property parameter for control of the engine.