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.

Date of Patent:
Jun. 06, 2017

Filed:

Aug. 14, 2015
Applicant:

Cummins Inc., Columbus, IN (US);

Inventors:

Jonathan A. Dickson, Columbus, IN (US);

Michael J. Ruth, Franklin, IN (US);

Assignee:

Cummins Inc., Columbus, IN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/12 (2006.01); F02D 41/02 (2006.01); F01L 1/34 (2006.01); F01N 3/021 (2006.01); F01N 3/20 (2006.01); F02M 25/07 (2006.01); F02D 41/00 (2006.01);
U.S. Cl.
CPC ...
F02D 41/0215 (2013.01); F01L 1/34 (2013.01); F01N 3/021 (2013.01); F01N 3/206 (2013.01); F01N 3/2066 (2013.01); F02D 41/022 (2013.01); F02D 41/024 (2013.01); F02D 41/0235 (2013.01); F02D 41/123 (2013.01); F02M 25/0706 (2013.01); F02M 25/077 (2013.01); F02M 25/0726 (2013.01); F01N 2900/0414 (2013.01); F01N 2900/1602 (2013.01); F02D 2041/0017 (2013.01); F02D 2200/021 (2013.01); F02D 2200/023 (2013.01); F02D 2200/0802 (2013.01);
Abstract

A system and method are disclosed for controlling the temperature of an aftertreatment system, the method including interpreting an aftertreatment indicating temperature, determining that an engine fueling requirement is zero, and disengaging the engine from a transmission in response to the aftertreatment indicating temperature falling below a first threshold value and in response to the engine fueling requirement being zero, where the engine and the transmission comprise a portion of a vehicle powertrain. Alternatively, the method may include interpreting an aftertreatment indicating temperature, determining that an engine fueling requirement is zero, and performing a reduced air flow operation through the engine in response to the aftertreatment indicating temperature falling below a first threshold value and in response to the engine fueling requirement being zero.


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