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:
Dec. 05, 1989

Filed:

Mar. 02, 1988
Applicant:
Inventors:

Yuji Kishimoto, Hyogo, JP;

Masanobu Uchinami, Hyogo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D / ;
U.S. Cl.
CPC ...
123339 ; 123418 ;
Abstract

In an engine speed control method including detecting a signal representing an error between an actual engine speed and a desired idling speed, and controlling both an ignition timing of an engine according to the error signal and an intake air quantity or an air/fuel mixture quantity to be sucked into the engine in order to make an engine speed to the desired engine speed; the improvement comprising the step of correcting the intake air quantity and the air/fuel mixture quantity to the engine according to an ignition timing error signal representing an error between an actual ignition timing of the engine and an ignition timing predetermined in accordance with an engine operation condition.


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