Planetary gear transmission systems or components – Input from independent power sources – Including electric motor input
Reexamination Certificate
2005-10-31
2008-09-23
Marmor, Charles A. (Department: 3681)
Planetary gear transmission systems or components
Input from independent power sources
Including electric motor input
C475S010000, C475S207000
Reexamination Certificate
active
07427252
ABSTRACT:
A vehicle transmission includes a differential gear set having five coaxial gear elements and an output member. Two of the gear elements are controllable via torque transmitting mechanisms such as electric motors to establish a plurality of speed ratios between the input shaft and the output shaft. Two of the other gear elements are selectively operatively connectable to an output shaft via a gear arrangement that allows for a plurality of speed ratios between the gear elements and the output shaft. Additional torque transmitting mechanisms such as clutches are selectively engageable to provide continuously variable speed ranges between the input shaft and the output shaft, fixed gear ratios and an electric drive mode. The various speed ratios enable a plurality of compound split operating modes as well as an input split mode.
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.
patent: 6558283 (2003-05-01), Schnelle
patent: 7101298 (2006-09-01), Sowul et al.
patent: 7264071 (2007-09-01), Schmidt et al.
GM Global Technology Operations Inc.
Knight Derek D
Marmor Charles A.
LandOfFree
Electrically variable transmission with input split mode and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electrically variable transmission with input split mode and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrically variable transmission with input split mode and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3974552