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:
Feb. 24, 2004
Filed:
Feb. 25, 2003
Applicant:
Inventor:
Ronald E. Gaskins, Kokomo, IN (US);
Assignee:
Delphi Technologies, Inc., Troy, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 3/02 ;
U.S. Cl.
CPC ...
F02D 3/02 ;
Abstract
An idle stability control for a fuel injected internal combustion engine deactivates selected fuel injectors after specified idle conditions have been met for a predetermined period of time, and thereafter until the conditions are no longer met. The engine spark timing is temporarily modified on each transition to and from the control to reduce operator perception of the injector deactivation and reactivation. Additionally, the injector deactivation pattern is periodically adjusted following an overlap period during which all of the injectors are enabled.