Powertrain with series electric launch and electric power...

Details Powertrain with series electric launch and electric power... Powertrain with series electric launch and electric power...

2005-09-23

2010-11-16

Le, David D (Department: 3655)

Planetary gear transmission systems or components

Input from independent power sources

Including electric motor input

C475S282000, C475S288000

Reexamination Certificate

active

07833119

ABSTRACT:
A powertrain includes an engine with an engine output member, such as a crankshaft, and a first motor/generator having a first rotor connected to the crankshaft for rotation therewith. A transmission includes a transmission input member, a transmission output member, and a differential gearing arrangement selectively operatively connecting the transmission input member and the transmission output member. A plurality of torque transmitting devices is selectively engageable to provide a plurality of fixed speed ratios between the transmission input member and the transmission output member. A second motor/generator includes a second rotor connected to the gearing arrangement to provide torque to the transmission output member. The transmission input member is selectively connectable to the engine output member and the first rotor to alternate between a series hybrid drive mode and a fixed ratio mode of powertrain operation. A corresponding method is also provided.

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patent: 10246839 (2004-04-01), None
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