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. 23, 1983
Filed:
Oct. 05, 1981
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
An air/fuel ratio control system for use in an internal combustion engine, which is adapted to initiate air/fuel ratio control upon concurrent fulfillment of a first condition that a first predetermined period of time which is provided as a period of time from the start of the engine to the warming-up of the engine is determined in dependence on the engine temperature available at the start of the engine by means of a first timer circuit and the first timer circuit finishes counting the first predetermined period of time, and a second condition that a second timer circuit finishes counting a second predetermined period of time after the internal resistance of an O.sub.2 sensor for detecting the oxygen concentration in the engine exhaust gases has dropped below a predetermined value.