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:
Nov. 06, 1990
Filed:
Nov. 24, 1989
Applicant:
Inventor:
Hiroshi Hosaka, Mitaka, JP;
Assignee:
Fuji Jukogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D / ;
U.S. Cl.
CPC ...
123494 ; 123478 ; 36443105 ;
Abstract
A throttle opening degree of a throttle valve at a time when the throttle opening degree is used for determining quantity of fuel injected from an injector is estimated in accordance with coefficients and engine speed. The quantity of air induced in a cylinder of an engine is estimated by using the estimated throttle opening degree and equations based on various coefficients. A basic injection pulse width is calculated based on the estimated air quantity.