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. 21, 2008
Filed:
Jun. 10, 2005
Yuji Yasui, Saitama-ken, JP;
Masahiro Sato, Saitama-ken, JP;
Mitsunobu Saito, Saitama-ken, JP;
Hiroshi Tagami, Saitama-ken, JP;
Kosuke Higashitani, Saitama-ken, JP;
Yuji Yasui, Saitama-ken, JP;
Masahiro Sato, Saitama-ken, JP;
Mitsunobu Saito, Saitama-ken, JP;
Hiroshi Tagami, Saitama-ken, JP;
Kosuke Higashitani, Saitama-ken, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A control system for an internal combustion engine, which is capable of properly performing air-fuel ratio control and ignition timing control according to an actual amount of intake air, even when reliability of the results of detection of the operating condition of a variable intake mechanism is low. The control system for controlling air-fuel ratio and ignition timing includes an ECU. The ECU calculates a target air-fuel ratio, calculates an air-fuel ratio correction coefficient, calculates a statistically processed value of an air-fuel ratio index value, calculates a corrected valve lift and a corrected cam phase, and determines a fuel injection amount according to the corrected valve lift, the corrected cam phase, and the air-fuel ratio correction coefficient.