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:
Feb. 26, 1991
Filed:
Aug. 14, 1989
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An air-fuel ratio control system for use in an internal combustion engine is disclosed which comprises a supply unit equipped with a carburetor incorporating an acceleration pump for supplying fuel to the internal combustion engine and at least one duty-controlled solenoid valve adapted to controlling the air-fuel ratio; an operating condition detector for detecting the operating condition of the internal combustion engine; an acceleration controlled-variable decision unit for setting a predetermined acceleration controlled-variable being given to the solenoid valve during different acceleration control times corresponding to the operating condition or different acceleration; and a control variable decision unit for determining the controlled duty of the solenoid valve according to the data from the operating condition detecting unit and when the controlled variable is given by the acceleration controlled-variable decision unit at the time of acceleration, according to the acceleration control variable.