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:
Jul. 05, 1983
Filed:
Sep. 18, 1981
Applicant:
Inventors:
Jiro Nakano, Okazaki, JP;
Hironobu Ono, Toyota, JP;
Assignee:
Toyota Jidosha Kogyo Kabushiki Kaisha, Toyota, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M / ;
U.S. Cl.
CPC ...
731173 ; 123489 ; 364551 ;
Abstract
A feedback operation check signal which indicates whether or not the feedback amount determined depending the output signal from the exhaust gas sensor to control the air-fuel ratio is within a predetermined range is fed to an information output terminal, when the throttle valve is in the idling position. On the other hand, when the throttle valve is not in the idling position, an electrical signal which is synchronized with the output signal from the exhaust gas sensor is fed to the same information output terminal.