Electrically variable transmission

Details Electrically variable transmission Electrically variable transmission

2006-06-13

2006-06-13

Marmor, Charles A. (Department: 3681)

Planetary gear transmission systems or components

Input from independent power sources

Including electric motor input

C475S004000, C475S006000, C475S008000, C475S317000, C475S318000, C180S065230, C180S065310, C903S908000, C903S909000, C903S911000, C903S952000

Reexamination Certificate

active

07059986

ABSTRACT:
A powertrain having a fuel cell prime mover, an electronic control unit, two motor/generator units, two planetary gearsets, and a plurality of torque-transmitting mechanisms is operable to provide three ranges of operation. During one range of operation, the power take-off unit operates at a constant speed. During the second range of operation, the power take-off unit, one of the motor/generator units, and the output shaft operate at a same speed, and during the third range of operation, both motor/generator units, the output shaft, and the power take-off unit operate at a same speed.

REFERENCES:
patent: 4579019 (1986-04-01), Gabriele
patent: 5730676 (1998-03-01), Schmidt
patent: 5931757 (1999-08-01), Schmidt
patent: 5935035 (1999-08-01), Schmidt
patent: 6090005 (2000-07-01), Schmidt et al.
patent: 6358173 (2002-03-01), Klemen et al.
patent: 6551208 (2003-04-01), Holmes et al.
patent: 6662890 (2003-12-01), Schmidt
patent: 6827165 (2004-12-01), Schmidt
patent: 6953409 (2005-10-01), Schmidt et al.

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