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:
Jan. 08, 1991
Filed:
Apr. 30, 1990
Toshihisa Takahashi, Himeji, JP;
Masanobu Uchinami, Himeji, JP;
Shinichi Nishida, Himeji, JP;
Hitoshi Inoue, Amagasaki, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
In an air-fuel ratio control apparatus for an internal combustion engine, an air-fuel ratio sensor detects an air-fuel ratio in response to specified components contained in exhaust gas and an electronic control section receives a signal from the air-fuel ratio sensor to calculate an amount of fuel to be injected from a fuel supplying device so that the air-fuel ratio of a gas mixture to be supplied to the engine approaches a target air-fuel ratio. A parameter of a load for the engine and an engine revolution number are each detected, and the electronic control section calculates a correction coefficient on the basis of the parameter of the load and the engine revolution number, whereby the output of the air-fuel ratio sensor is corrected.