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. 08, 2014
Filed:
Feb. 18, 2011
Mark A. Vernacchia, Northville, MI (US);
Brian W. Whitmarsh, Commerce, MI (US);
Joshua E. Lehrmann, Ann Arbor, MI (US);
Wayne B. Vogel, Canton, MI (US);
Todd W. Rooney, Howell, MI (US);
Mark A. Vernacchia, Northville, MI (US);
Brian W. Whitmarsh, Commerce, MI (US);
Joshua E. Lehrmann, Ann Arbor, MI (US);
Wayne B. Vogel, Canton, MI (US);
Todd W. Rooney, Howell, MI (US);
GM Global Technology Operations, LLC, Detroit, MI (US);
Abstract
The present invention provides a system for shifting or controlling a dual clutch transmission where the transmission may operate in at least a first mode of operation and a second mode of operation. The system includes a controller and a plurality of solenoids in fluid communication with a valve assembly. Selective activation of the solenoids by the controller engages the valve assembly to provide the first mode and the second mode of operation.