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:
Dec. 13, 1988
Filed:
Jun. 26, 1987
Applicant:
Inventor:
Takeo Sasaki, Hyogo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
F02D / ;
U.S. Cl.
CPC ...
123339 ; 123352 ;
Abstract
An idle revolution of an internal combustion engine is controlled by a device which includes an average position deflection operating portion for averaging a position deflection between a predetermined position of an actuator for controlling a throttle valve of the engine and an actual position thereof over a predetermined time period to correct the predetermined position with an average value to thereby obtain a desired idle revolution of the engine. By introducing a short time position deflection into the average position deflection, which corresponds to a temporary variation of engine load, an undesired effect of such variation can be removed.