Patent attributes
A hybrid power transmission apparatus for a vehicle is disclosed. The transmission includes an engine and first and second motor-generators as power sources. The transmission may include: a planetary gear set configured to include a first rotation element that is operatively connected to the first motor-generator, a second rotating element that is operatively connected to the engine and operatively connected to a first intermediate shaft, and a third rotation element to which a second intermediate shaft is operatively connected; a synchronizer configured to optionally operatively connect the second motor-generator to the first intermediate shaft, the second intermediate shaft, or both the first and second intermediate shafts; and an output shaft operatively connected to the second intermediate shaft to output power.
