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:
Feb. 03, 1987
Filed:
Sep. 04, 1985
Applicant:
Inventor:
Masakazu Ninomiya, Kariya, JP;
Assignee:
Nippondenso Co., Ltd., Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M / ; F02M / ;
U.S. Cl.
CPC ...
123492 ; 123480 ; 123486 ; 123493 ;
Abstract
An air-fuel control system determines a basic injection amount for steady operation in accordance with an engine speed and an intake manifold pressure or intake air amount of the engine, and compensates during a transient period of engine operation the basic injection amount in accordance with engine operating conditions such as throttle valve opening, O.sub.2 concentration in the exhaust gas, etc. At the time of engine acceleration, the fuel increment is incrementally compensated for in accordance with the air-fuel ratio immediately before the acceleration, data for fuel increment being stored in a map corresponding to data of the basic injection amount.