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:
May. 01, 2001
Filed:
Dec. 01, 1998
Applicant:
Inventors:
Kouji Hosokawa, Higashimurayama, JP;
Kousaku Shimada, Hitachinaka, JP;
Seiji Asano, Hitachinaka, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M 5/100 ;
U.S. Cl.
CPC ...
F02M 5/100 ;
Abstract
An engine control apparatus controls an intake air flow based on the engine torque or the fuel injection amount. A variation of the A/F ratio and deterioration of a driving “feel” owing to the response delay of air intake against the fuel injection is suppressed. The phase of fuel injection is caused to fit that of the air intake phase by delaying the fuel injection or by speeding up the air intake.