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. 28, 2003
Filed:
Feb. 01, 2002
Toru Kitamura, Wako, JP;
Makoto Kobayashi, Wako, JP;
Koichi Hidano, Wako, JP;
Takeshi Tagami, Wako, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A control system for an internal combustion engine is disclosed. The engine is provided with at least one fuel injection valve for injecting fuel supplied from a fuel tank into an intake pipe of the engine. The fuel injection amount is controlled by controlling the valve opening period of the at least one fuel injection valve. A pressure difference between the pressure of fuel to be supplied to the at least one fuel injection valve and the pressure in the fuel tank is controlled such that the difference is at a constant value. The pressure in the fuel tank and the pressure in the intake pipe are detected. A correction amount is calculated according to the pressure in the fuel tank and the pressure in the intake pipe, and the valve opening period of the at least one fuel injection valve is corrected using the calculated correction amount. A required amount of fuel to be supplied to the engine is calculated according to an operating condition of the engine. The change rate of the correction amount is corrected according to the required fuel amount.