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:
Dec. 11, 1990
Filed:
Oct. 06, 1989
Applicant:
Inventors:
Assignees:
Hitachi, Ltd., Tokyo, JP;
Hitachi Automotive Engineering Co., Ltd., Ibaraki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D / ; F02D / ; F02D / ;
U.S. Cl.
CPC ...
123492 ; 123493 ;
Abstract
A fuel supply control system for internal combustion engines with an air flow mounted in a intake manifold, a throttle valve opening sensor and a control unit, in which at quick acceleration the control unit generates a correction air flow quantity signal in accordance with the change of the output of the throttle valve opening sensor and corrects the output signal of the air flow sensor by the correction air flow quantity signal, whereby estimating real air flow quantity sucked into the engine cylinders.