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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 7720587 B1

PDFFull Text
Expired
Date of Patent:
May. 18, 2010

Filed:

Mar. 14, 2006

Variable operation of vehicle transmissions using rough road sensing

Applicants:

Mike M. Mcdonald, Macomb, MI (US);

William C. Albertson, Clinton Township, MI (US);

Keith D. Van Maanen, Birmingham, MI (US);

Inventors:

Mike M. McDonald, Macomb, MI (US);

William C. Albertson, Clinton Township, MI (US);

Keith D. Van Maanen, Birmingham, MI (US);

Assignee:

GM Global Technology Operations, Inc., Detroit, MI (US);

Attorney:
Primary Examiner:

Khoi Tran

Assistant Examiner:

Nikhil Sriraman

Int. Cl.
CPC ...
G06F 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method for variable operation of a vehicle transmission using rough road sensing includes defining a first set of parameters to calibrate the vehicle transmission for a smooth road condition and a second set of parameters to calibrate the vehicle transmission for a rough road condition. The method includes sensing a road condition, generating a road condition signal corresponding to the road condition, and measuring a magnitude of the road condition signal. The method includes switching from the first set of parameters to the second set of parameters to operate the vehicle transmission when the magnitude of the road condition signal exceeds a first predetermined threshold. The method includes switching from the second set of parameters to the first set of parameters to operate the vehicle transmission when the magnitude of the road condition signal is less than a second predetermined threshold that is different than the first predetermined threshold.

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McDonald, Mike. (2010). Variable operation of vehicle transmissions using rough road sensing (U.S. Patent No. 7720587). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7720587

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