Patent ID: 7426971

Claim:
A hybrid driving unit, comprising: an input shaft for inputting motive power from an internal combustion engine; an output shaft disposed on an axis in line with said input shaft and interlocked with driving wheels; a first electric motor disposed on the axis and comprising a stator and a rotor; a power splitting planetary gear disposed on the axis and comprising a first rotary element coupled with said input shaft, a second rotary element coupled with the rotor of said first electric motor and a third rotary element coupled with said output shaft; a second electric motor disposed on the axis and comprising a stator and a rotor; and a transmission disposed on the axis and shifting and transmitting revolution of the rotor of said second electric motor to said output shaft; said hybrid driving unit being characterized in that: said first electric motor, said power splitting planetary gear, said second electric motor and said transmission are stored in a casing member while being disposed in line on the axis; the stators of said first and second electric motors are fixed to said casing member; and said first electric motor, said power splitting planetary gear, said second electric motor and said transmission are disposed on the axis so that said first electric motor and said second electric motor adjoin each other on the axis.