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:
Oct. 20, 2015

Filed:

Apr. 28, 2015
Applicant:

Ford Global Technologies, Llc, Dearborn, MI (US);

Inventors:

Kristofor Robert Norman, Canton, MI (US);

Shuya Shark Yamada, Novi, MI (US);

Assignee:

Ford Global Technologies, LLC, Dearborn, MI (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16H 59/32 (2006.01); F16H 61/02 (2006.01); B60W 30/188 (2012.01); F02B 29/04 (2006.01); F02D 41/00 (2006.01); B60W 10/06 (2006.01); B60W 10/11 (2012.01);
U.S. Cl.
CPC ...
F16H 61/0213 (2013.01); B60W 10/06 (2013.01); B60W 10/11 (2013.01); B60W 30/1884 (2013.01); F02B 29/0468 (2013.01); F02D 41/0007 (2013.01); F16H 59/32 (2013.01);
Abstract

Methods and systems are provided for performing a multiple gear downshift of a transmission gear by transiently operating in an intermediate gear. In response to air mass flow not reaching a threshold for CAC self-cleansing for a set duration, the transmission gear may be downshifted from a higher gear to an intermediate gear, and then to a requested lower gear. Downshifting through an intermediate gear may also be controlled based on the gear shift request and maximum air mass flow levels for engine misfire.


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