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. 28, 1990
Filed:
Jun. 14, 1989
Applicant:
Inventor:
Akira Akimoto, Tokyo, JP;
Assignee:
Fuji Jukogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M / ;
U.S. Cl.
CPC ...
731182 ;
Abstract
The quantity of intake air passing a throttle valve of an engine is calculated and a weight for a weighted mean is derived from a map in accordance with the throttle valve position and engine speed. The quantity of the intake air is calculated by multiplying the ratio of a weight at a last time to a weight at a present time by an intake air quantity produced at the last time to provide a product, by dividing a throttle passing air quantity produce by the throttle passing air calculator at the present time by a weight at the present time to provide a quotient, and by adding the product and the quotient.