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:
Sep. 11, 2012
Filed:
Jun. 06, 2011
Eric M. Rask, Chicago, IL (US);
Peter J. Savagian, Bloomfield Hills, MI (US);
Alan G. Holmes, Clarkston, MI (US);
Larry T. Nitz, South Lyon, MI (US);
Eric M. Rask, Chicago, IL (US);
Peter J. Savagian, Bloomfield Hills, MI (US);
Alan G. Holmes, Clarkston, MI (US);
Larry T. Nitz, South Lyon, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A hybrid powertrain is provided that includes an engine operatively connected with an input member. The powertrain includes a transmission with first and second electric motor/generators, a differential gear set having multiple members, and selectively engageable torque-transmitting mechanisms. The input member, the output member, the engine and the motor/generators are selectively interconnected through the differential gear set by engagement of the torque-transmitting mechanisms in different combinations. The powertrain provides multiple operating modes between the input member and the output member, including an electric-only operating mode in which the engine is off and both electric motor/generators act as motors to provide torque at the output member.