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:
Mar. 25, 2014
Filed:
Feb. 23, 2010
Vijay A. Neelakantan, Rochester Hills, MI (US);
Bret M. Olson, Whitelake, MI (US);
James W. Haynes, Oxford, MI (US);
Clinton E. Carey, Highland, MI (US);
Vijay A. Neelakantan, Rochester Hills, MI (US);
Bret M. Olson, Whitelake, MI (US);
James W. Haynes, Oxford, MI (US);
Clinton E. Carey, Highland, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A multiplexed electromechanical shift mechanism includes a single linear actuator with multiple independently selectable linkages actuating a clutch and multiple gears for use in motor vehicle transmissions such as a dual clutch transmission. The linear actuator may be a ball screw, a planetary roller screw or hydraulic or pneumatic operator capable of controlling bi-directional linear motion of an output member. A plurality of linear clutches selectively couple the output member to one of a plurality of linkages adapted to transfer the bi-directional motion of the output member. One of the linkages is coupled to and engages an input (main) clutch of the transmission and the remaining linkages are coupled to and bi-directionally translate shift forks and synchronizer clutches which achieve gear selection and engagement.