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:
Jul. 14, 2009
Filed:
Oct. 30, 2006
Todd J. Thor, Byron, MI (US);
David W. Wright, Howell, MI (US);
Brian J. Pellerito, Ortonville, MI (US);
Craig A. Brunstetter, Marysville, OH (US);
Todd J. Thor, Byron, MI (US);
David W. Wright, Howell, MI (US);
Brian J. Pellerito, Ortonville, MI (US);
Craig A. Brunstetter, Marysville, OH (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
A vehicle including a transmission having a plurality of clutches for providing a plurality of speed ratios. A control module of the vehicle detects a possible tie-up of at least two of the clutches. Based on the detecting, the control module releases one of the possibly tied-up clutches. After the release, the control module determines whether a tie-up condition occurred. Based on the determining, the control module reapplies pressure to the released clutch. Loss of driver control of the vehicle thus can be prevented in the event of clutch tie-up.