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. 09, 2004
Filed:
Apr. 30, 2003
Applicant:
Inventor:
Ronald E. Gaskins, Kokomo, IN (US);
Assignee:
Delphi Technologies, Inc., Troy, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 4/114 ;
U.S. Cl.
CPC ...
F02D 4/114 ;
Abstract
A fuel pressure control for an alternate-fuel engine utilizes adaptively learned corrections for fuel injection pulsewidth to dynamically adjust a base fuel pressure control signal. The resulting fuel pressure control can thus be characterized as open-loop with closed-loop correction based on air/fuel ratio error. The control dynamically adjusts the fuel pressure in a manner to optimize the air/fuel ratio control instead of controlling to a predetermined pressure, and fuel pressure measurement is not required.