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:
Nov. 28, 2006
Filed:
Feb. 24, 2005
Kazuyoshi Kishibata, Numazu, JP;
Yuichi Kitagawa, Numazu, JP;
Hiroyasu Sato, Numazu, JP;
Tomoaki Sekita, Numazu, JP;
Kazuyoshi Kishibata, Numazu, JP;
Yuichi Kitagawa, Numazu, JP;
Hiroyasu Sato, Numazu, JP;
Tomoaki Sekita, Numazu, JP;
Kokusan Denki Co., Ltd., Shizuoka-ken, JP;
Abstract
An engine fuel injection control device including: means for detecting an amount of change per minimal time in intake pipe pressure of an engine as an intake pipe pressure change amount; means for performing an arithmetical operation of calculating an opening area of an orifice from a relationship between a mass flow rate of gas and the intake pipe pressure change amount in a process for the intake pipe pressure to increase after an intake valve of the engine is closed, the gas flowing through said orifice by a difference in pressure on both sides of the orifice when a throttle valve is regarded as the orifice; and means for estimating the opening area of the orifice as an opening area of the throttle valve to arithmetically operate an acceleration increase correction value of injection time based on the estimated opening area; and means for correcting an injection amount in acceleration of the engine using the arithmetically operated acceleration increase correction value.