Mechatronic hybrid transmissions having three planetary gear...

Details Mechatronic hybrid transmissions having three planetary gear... Mechatronic hybrid transmissions having three planetary gear...

2008-05-13

2008-05-13

Wright, Dirk (Department: 3681)

Planetary gear transmission systems or components

Input from independent power sources

Including electric motor input

Reexamination Certificate

active

07371202

ABSTRACT:
The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms 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).

REFERENCES:
patent: 5558595 (1996-09-01), Schmidt et al.
patent: 5931757 (1999-08-01), Schmidt
patent: 6478705 (2002-11-01), Holmes et al.
patent: 6527658 (2003-03-01), Holmes et al.

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