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:
Sep. 13, 2005
Filed:
May. 28, 2003
Applicants:
Goran Almkvist, Lerum, SE;
Klaas Burgdorf, Ljungskile, DE;
Lars Mikael Fredriksson, Kärna, SE;
Inventors:
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D041/06 ;
U.S. Cl.
CPC ...
Abstract
The invention relates to a method for controlling an internal combustion engine during a cold start operation. The engine is supplied with a substantially constant, lean air/fuel ratio immediately after the engine is started, while the engine has an idle speed that is allowed to vary as a function of the difference between a target air/fuel ratio and an actual air/fuel ratio. The invention further relates to an arrangement for carrying out the method.