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. 05, 2010
Filed:
Aug. 19, 2008
Shinji Nakagawa, Hitachinaka, JP;
Kazuhiko Kanetoshi, Hitachinaka, JP;
Kozo Katogi, Hitachi, JP;
Takanobu Ichihara, Naka, JP;
Minoru Ohsuga, Hitachinaka, JP;
Shinji Nakagawa, Hitachinaka, JP;
Kazuhiko Kanetoshi, Hitachinaka, JP;
Kozo Katogi, Hitachi, JP;
Takanobu Ichihara, Naka, JP;
Minoru Ohsuga, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An engine control apparatus for controlling the amount of the air flowing into each cylinder in accordance with the amount of the fuel flowing into the cylinder at the time of starting the engine is disclosed. Further, at the engine starting time, the target amount of the air flowing into the cylinder is calculated and/or the amount of the air flowing into the cylinder is controlled, based on the amount of the fuel flowing into the cylinder. The amount of the fuel remaining in the neighborhood of the engine intake port or in the intake pipe is calculated by being separated into a balanced liquid film amount and unbalanced liquid film amount. Based on the unbalanced liquid film amount, the injection fuel amount is corrected so that the amount of the fuel flowing into the cylinder is controlled with high accuracy.