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:
Mar. 02, 1993
Filed:
Jan. 15, 1992
Applicant:
Inventor:
Toshihisa Takahashi, Himeji, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
123479 ;
Abstract
A fuel control device for an internal combustion engine comprises an intake air flow sensor, a crank angle sensor, an intake pressure sensor, and means for calculating a predicted intake air quantity based on the engine rpm and the intake pressure. A failure of the air flow sensor is determined by comparing the predicted intake air quantity with the sensed intake air flow, and the fuel injection is controlled based on the output of the air flow sensor when it is normal and on the predicted intake air quantity when the air flow sensor has failed.