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:
Oct. 27, 2015
Filed:
Jun. 30, 2011
Brad Alan Vanderwege, Canton, MI (US);
Ken Jahr, West Bloomfield, MI (US);
Joseph Norman Ulrey, Dearborn, MI (US);
Todd Anthony Rumpsa, Saline, MI (US);
Brad Alan VanDerWege, Canton, MI (US);
Ken Jahr, West Bloomfield, MI (US);
Joseph Norman Ulrey, Dearborn, MI (US);
Todd Anthony Rumpsa, Saline, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A method for operating an engine of a vehicle. During a warm-up period following a cold start of the vehicle, a cylinder of the engine is charged to a reduced air-charge pressure, and fuel is injected into the cylinder. After the warm-up period, the cylinder is charged to a non-reduced air-charge pressure, greater for an equivalent driver demand than the reduced air-charge pressure, and fuel is injected into the cylinder.