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:
Aug. 28, 1984
Filed:
Aug. 05, 1982
Applicant:
Inventors:
Assignee:
Nippondenso Co., Ltd., Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
123489 ;
Abstract
In an internal combustion engine, a basic fuel injection pulse width is calculated by parameters such as the engine speed and the intake-air quantity. The basic pulse width is compensated for by an integration compensation factor and a learning correction factor so as to obtain a desired air-fuel ratio. A predetermined number of integration compensation factors are sampled at every air-fuel ratio transition, and the mean value thereof is calculated. The learning compensation factor is corrected in accordance with the mean value of the predetermined number of integration compensation factors.