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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.:

US 9296290 B1

PDFFull Text
Expired
Date of Patent:
Mar. 29, 2016

Filed:

Mar. 26, 2010

Multiple-ratio transmission downshift strategy for hybrid electric vehicle powertrains

Applicants:

Walter Joseph Ortmann, Saline, MI (US);

Daniel Scott Colvin, Farmington Hills, MI (US);

Brian Thomas Soo, Farmington Hills, MI (US);

Inventors:

Walter Joseph Ortmann, Saline, MI (US);

Daniel Scott Colvin, Farmington Hills, MI (US);

Brian Thomas Soo, Farmington Hills, MI (US);

Assignee:

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

Attorneys:

David B. Kelley

Brooks Kushman P.C.

Primary Examiner:

John Q Nguyen

Assistant Examiner:

Michael Whalen

Int. Cl.
CPC ...
B60K 6/48 (2007.10); B60W 10/06 (2006.01); B60W 10/08 (2006.01); B60W 10/115 (2012.01); B60W 20/00 (2006.01); B60W 30/19 (2012.01); F16H 61/02 (2006.01); F16H 59/50 (2006.01);
U.S. Cl.
CPC ...
B60K 6/48 (2013.01); B60W 10/06 (2013.01); B60W 10/08 (2013.01); B60W 10/115 (2013.01); B60W 20/00 (2013.01); B60W 30/19 (2013.01); F16H 61/0213 (2013.01); B60W 2710/083 (2013.01); F16H 59/50 (2013.01); Y02T 10/6221 (2013.01); Y02T 10/6286 (2013.01); Y10T 477/23 (2015.01);
Abstract

A control system and method for a hybrid electric vehicle powertrain supplies battery power boost torque to vehicle traction wheels to modify shift points for a multiple ratio transmission in the powertrain. A shift schedule is adjusted to avoid a downshift for small changes in torque demand, thus reducing shift frequency due to small transient changes in torque demand.

Find Patent Forward Citations

Ortmann, Walter. (2016). Multiple-ratio transmission downshift strategy for hybrid electric vehicle powertrains (U.S. Patent No. 9296290). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9296290

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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