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:
Jan. 22, 2013
Filed:
Sep. 17, 2010
Larry D. Diemer, Clarkston, MI (US);
Farzad Samie, Franklin, MI (US);
David W. Wright, Howell, MI (US);
Chunhao J. Lee, Troy, MI (US);
Larry D. Diemer, Clarkston, MI (US);
Farzad Samie, Franklin, MI (US);
David W. Wright, Howell, MI (US);
Chunhao J. Lee, Troy, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A transmission is disclosed having an input member, an output member, and first, second, third and fourth planetary gear sets each having first, second and third members. A plurality of interconnecting members continuously interconnect one of the first, second and third members of one of the planetary gear sets with one of the first, second and third members of another of the planetary gear sets. Five torque-transmitting mechanisms are selectively engageable in combinations of at least three to establish at least eight forward speed ratios and at least one reverse speed ratio between the input member and the output member. The first of the five torque-transmitting mechanisms is a selectable one-way clutch engageable to interconnect the third member of the first planetary gear set with the stationary member.