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.

Date of Patent:
Jun. 11, 1985

Filed:

Mar. 02, 1983
Applicant:
Inventors:

Matsuo Amano, Hitachi, JP;

Shinichi Sakamoto, Hitachi, JP;

Takeshi Hirayama, Mito, JP;

Takao Sasayama, Hitachi, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B / ;
U.S. Cl.
CPC ...
123478 ;
Abstract

A method of controlling fuel supplied to an engine comprises the steps of computing the quantity of air taken into the engine on the basis of the output from an air flow rate sensor, integrating the quantity of intake air computed in the first step, determining the level for setting the period of generation of a fuel-quantity control pulse signal from a pulse generating circuit on the basis of the output from an exhaust gas sensor, and generating pulses of predetermined pulse width from the pulse generating circuit when a predetermined relation is attained between the level determined in the third step and the result of integration in the second step.


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