Hybrid transmissions having three motor/generators and three...

Details Hybrid transmissions having three motor/generators and three... Hybrid transmissions having three motor/generators and three...

2006-03-10

2008-09-09

Ho, Ha D. (Department: 3681)

Planetary gear transmission systems or components

Input from independent power sources

Including electric motor input

Reexamination Certificate

active

07422534

ABSTRACT:
The electrically variable transmission family of the present invention is a low-content, low-cost electrically variable transmission mechanism including first, second and third differential gear sets, a battery and three electric machines serving interchangeably as motors or generators. The three motor/generators are operable in a coordinated fashion to yield an EVT with a continuously variable range of speeds (including reverse).

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patent: 7053566 (2006-05-01), Aizawa et al.
patent: 7195573 (2007-03-01), Bezian et al.
patent: 2007/0049439 (2007-03-01), Garnett

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