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:
Nov. 27, 2012
Filed:
Apr. 15, 2011
Darrell Lee Robinette, Fenton, MI (US);
Clyde A. Bulloch, Hartland, MI (US);
Darrell Lee Robinette, Fenton, MI (US);
Clyde A. Bulloch, Hartland, MI (US);
Gm Global Technology Operations LLC, Detroit, MI (US);
Abstract
A hybrid electro-mechanical transmission has an input member, an output member, and a stationary member. The transmission has a planetary gear set with a first sun gear, a second sun gear, a carrier, a first set of pinion gears, a second set of pinion gears, and a ring gear. The carrier supports the sets of pinion gears. The first set of pinion gears meshes with the first sun gear and with the ring gear. The second set of pinion gears meshes with the second sun gear and with the second set of pinion gears. The input member is connected with the ring gear. The output member is connected with the first sun gear. A first motor/generator has a rotor connected with the carrier. A second motor/generator has a rotor connected with the second sun gear. A torque-transmitting mechanism is selectively engageable to ground the input member to the stationary member.