An electro-mechanical transmission is provided having an input member for
receiving power from an engine and output member. A plurality of gear
members is operable for changing speed ratio between the input member and
the output member. The input is connected with one of the gear members
and the output member is connected with another of the gear members. A
motor/generator is continuously operatively connected with the output
member (via a planetary gear set) in parallel with the gear member that
is continuously connected with the output member. The motor/generator is
packaged axially between the input member and the plurality of gear
members. The motor/generator is packaged in a packaging space typically
utilized for a torque converter in a nonelectro-mechanical transmission.
Thus, redesign of the nonelectro-mechanical transmission to achieve the
electro-mechanical transmission involves a minimal number of steps.