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. 04, 1992
Filed:
Aug. 31, 1990
Applicant:
Inventors:
Assignee:
Hitachi, Ltd., Chiyoda, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D / ; F02D / ;
U.S. Cl.
CPC ...
123478 ; 123492 ;
Abstract
In order to make the quantity of fuel in a cylinder approach a requested value with high accuracy, the characteristic of fuel transport is employed by use of a model in which all injected fuel adheres onto walls of the intake manifold and then a part of the fuel adhering to the walls is sucked off into the cylinder. By use of a respective model for each cylinder, the quantity of fuel injected into each cylinder is independently controlled so that the quantity of fuel in the cylinder is established to be a requested value.