Planetary gear transmission systems or components – Input from independent power sources – Including electric motor input
Reexamination Certificate
2011-06-06
2011-10-25
Pang, Roger (Department: 3655)
Planetary gear transmission systems or components
Input from independent power sources
Including electric motor input
C475S290000
Reexamination Certificate
active
08043182
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. An electronic controller controls the electric motor/generators, the engine and the torque-transmitting mechanisms to provide multiple operating modes between the input member and the output member, including an electric-only operating mode in which the engine is off and one motor generator acts as a motor to provide torque at the output member while the other electric motor/generator can remain substantially stationary, and another electric-only operating mode in which both electric motor/generators act as motors to provide torque at the output member.
REFERENCES:
patent: 6478705 (2002-11-01), Holmes et al.
patent: 7594869 (2009-09-01), Holmes
patent: 7648437 (2010-01-01), Raghavan et al.
patent: 7712560 (2010-05-01), Kozarekar
patent: 2005/0137043 (2005-06-01), Kinugasa et al.
patent: 2010/0137091 (2010-06-01), Park et al.
patent: 2010/0273594 (2010-10-01), Sung
Holmes Alan G.
Nitz Larry T.
Rask Eric M.
Savagian Peter J.
GM Global Technology Operations LLC
Pang Roger
Quinn Law Group PLLC
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