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:
May. 25, 2010
Filed:
Oct. 18, 2007
Ludovic Peron, Lailly en Val, FR;
Guillaume Meissonnier, Landes le Gaulois, FR;
Ludovic Peron, Lailly en Val, FR;
Guillaume Meissonnier, Landes le Gaulois, FR;
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A method is provided for determining whether an injection parameter correction for fuel quality is required in an internal combustion engine, the engine comprising a plurality of cylinders, each one of the cylinders comprising a combustion chamber into which fuel is injected by an associated fuel injector and within which, in use, combustion events repeatedly occur to define a combustion cycle of the cylinder between successive combustion events. The method comprises observing the speed of the combustion cycles of at least two of the cylinders and analysing the at least two speeds to determine if an injection parameter correction for fuel quality is required. The invention also extends to an injector control unit arranged to determine an injection parameter correction for fuel quality.