Electrically variable transmission with input split mode and...

Details Electrically variable transmission with input split mode and... Electrically variable transmission with input split mode and...

2008-09-23

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

11263175

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.

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