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:
Aug. 15, 2006
Filed:
Oct. 05, 2005
Kazuhiko Abe, Kawasaki, JP;
Hatsuo Nagaishi, Zushi, JP;
Kazuhiko Abe, Kawasaki, JP;
Hatsuo Nagaishi, Zushi, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
In an internal combustion engine (), air is taken into a cylinder () from an intake passage () through an intake valve (). The amount of air taken into the cylinder () is controlled to a target intake air amount by having an engine controller () operate an intake throttle () in accordance with an accelerator opening (APO), taking into account a predetermined response delay (T). The engine controller () calculates a predicted value (Qc) of the intake air amount on the basis of the accelerator opening (APO), and controls a fuel injector () to inject fuel in a target fuel injection amount (Ti) which corresponds to this predicted value (Qc) at a predetermined timing. In so doing, an improvement is achieved in the degree of precision with which air-fuel ratio control is performed when the internal combustion engine () accelerates or decelerates.