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. 20, 1991
Filed:
Nov. 08, 1990
Hajime Kako, Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An apparatus for detecting the degree of opening of a throttle valve of an engine. A first value indicating the degree of opening of the throttle valve and a second value indicating the opening of the throttle valve in an idling position are detected and stored. Whether the first value is kept unchanged for a fixed interval is decided when the throttle valve is in an idling position. A stable value of the first values is provided when the first value is kept unchanged for a fixed interval and the throttle valve is in an idling position. Then the second value is updated to the stable value. A value indicating the difference between the stored first and second values is calculated. The calculated value is used to control the amount of fuel supplied to the engine.