Hybrid powertrain system

Planetary gear transmission systems or components – Input from independent power sources – Including electric motor input

Reexamination Certificate

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Details

C074S331000

Reexamination Certificate

active

06945893

ABSTRACT:
A hybrid powertrain system is provided that includes a first prime mover having a rotational output, a second prime mover having a rotational output, and a transmission having a main shaft supporting at least two main shaft gears thereon. The transmission includes a first independent countershaft drivingly connected to the first prime mover and including at least one ratio gear supported thereon that meshes with a respective main shaft gear. A second independent countershaft is drivingly connected to the second prime mover and includes at least one ratio gear supported thereon that meshes with a respective main shaft gear. The ratio gears on the first and second countershafts cooperate with the main shaft gears to provide at least one gear ratio between the first and second countershafts and the main shaft. A shift control mechanism selectively engages and disengages the first and second countershafts for rotation with the main shaft.

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Derwent English Abstract for DE 101 08 881 A1.
Derwent English Abstract for DE 199 60 621 A1.
Derwent English Abstract for FR 2 811 395 A1.
Derwent English Abstract for FR 2 805 221 A1.
International Search Report, 3 pages.

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