Power unit

Details Power unit Power unit

2011-05-31

2011-05-31

Le, David D (Department: 3655)

Planetary gear transmission systems or components

Input from independent power sources

Including electric motor input

C475S053000, C475S323000

Reexamination Certificate

active

07951033

ABSTRACT:
A power unit enabling reduction of the size and manufacturing costs thereof and making unnecessary complicated control of power from a prime mover, for changing the speed of power from the prime mover. A first sun gear, a first carrier and a first ring gear of a first planetary gear unit are mechanically connected to drive wheels, the engine, and a pump impeller of a torque converter, respectively. A second sun gear, a second carrier and a second ring gear of a second planetary gear unit are mechanically connected to the engine, the drive wheels, and a turbine runner of the torque converter, respectively. A rotating machine is mechanically connected to one of the first and second ring gears, and the operation of the rotating machine is controlled by a PDU and an ECU. A battery is electrically connected to the rotating machine.

REFERENCES:
patent: 7654927 (2010-02-01), Kimura et al.
patent: 7794348 (2010-09-01), Tilscher et al.
patent: 2002-281607 (2002-09-01), None

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