Electric and hybrid electric powertrain for motor vehicles

Details Electric and hybrid electric powertrain for motor vehicles Electric and hybrid electric powertrain for motor vehicles

2007-07-03

2007-07-03

Wright, Dirk (Department: 3681)

Planetary gear transmission systems or components

Nonplanetary variable speed or direction transmission...

Nonplanetary transmission is friction gearing

Reexamination Certificate

active

11169192

ABSTRACT:
A powertrain for transmitting power to a driven wheel of a motor vehicle includes a power source that includes a reversible electric machine. A first transmission includes an input driveably connected to the power source, a first output, and a mechanism for producing a stepless variable range of ratios of a speed of the output to a speed of the input. An epicyclic transmission includes a second input driveably connected to the power source, a third input driveably connected to the first output, and a second output driveably connected to a drive wheel. The transmissions produce a range of speed of the drive wheel that varies from negative to positive and includes zero.

REFERENCES:
patent: 6053841 (2000-04-01), Koide et al.
patent: 6302819 (2001-10-01), Yamada et al.
patent: 6561941 (2003-05-01), Nakano et al.
patent: 6949045 (2005-09-01), Wafzig et al.
patent: 6979276 (2005-12-01), Murray

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