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:
Dec. 17, 2013
Filed:
Jan. 21, 2010
Jian Kong, Canton, MI (US);
Kevin Chen, Canton, MI (US);
Kirk Andrew Parrish, Grass Lake, MI (US);
Jeff Malcolm Travis, Dexter, MI (US);
Christopher Oberski, Plymouth, MI (US);
Michiel J. Van Nieuwstadt, Ann Arbor, MI (US);
Jian Kong, Canton, MI (US);
Kevin Chen, Canton, MI (US);
Kirk Andrew Parrish, Grass Lake, MI (US);
Jeff Malcolm Travis, Dexter, MI (US);
Christopher Oberski, Plymouth, MI (US);
Michiel J. Van Nieuwstadt, Ann Arbor, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
In one approach a method for operating an engine including a DPF is provided. The method includes adjusting a post fuel injection amount based on a rate of change of engine torque during DPF regeneration. As one example, the adjusting includes reducing the amount when the rate of change is positive, and increasing the amount when the rate of change is negative. Furthermore, the method may also include delivering exhaust gas to a turbocharger turbine, to an oxidation catalyst, and then a DPF, the adjusting of the post fuel injection further based on thermal inertia of the turbocharger.