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. 25, 2011
Filed:
Jul. 20, 2010
Eric Kurtz, Dearborn, MI (US);
Diana D. Brehob, Dearborn, MI (US);
Christian Winge Vigild, Aldenhoven, DE;
David Joseph Dronzkowski, Sterling Heights, MI (US);
Jonathan James Pilbeam, Billericay, GB;
James Eric Anderson, Dearborn, MI (US);
Eric Kurtz, Dearborn, MI (US);
Diana D. Brehob, Dearborn, MI (US);
Christian Winge Vigild, Aldenhoven, DE;
David Joseph Dronzkowski, Sterling Heights, MI (US);
Jonathan James Pilbeam, Billericay, GB;
James Eric Anderson, Dearborn, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A fuel compensation factor (FCF) is determined to account for the amount of oxygenated fuel blended in diesel fuel. In one embodiment, the FCF is based on an expected exhaust gas oxygen concentration compared to an actual exhaust gas oxygen concentration. The FCF is used to estimate an amount of oxygenated fuel in the blend. Such estimate can be used to adjust the exhaust temperature model, which is used at least in determining the temperature in aftertreatment devices, the fuel dilution model which affects oil change recommendations, and the diesel particulate filter loading model which affects regenerations. Biodiesels are more prone to waxing at lower temperatures. The estimated amount of biodiesel and the temperature in the injection system are used to prevent and/or delay starting when it is predicted that too much wax exists in the fuel system.