POWER TRANSMISSION SYSTEM AND VEHICLE COMPRISING THE SAME

A power transmission system (100) for a vehicle includes: an engine (4); input shafts, at least one of which configured to selectively engage with the engine (4); output shafts configured to mesh with a corresponding shift driving gear; a transmission gear (6) provided on one output shaft; a motor power shaft (3); first and a second motor gears (31, 32) fitted over the motor power shaft (3); a motor synchronizer (33c); a reverse gear (71) fitted over the motor power shaft (3); a middle idler (73) configured to mesh with the shift driving gear; a reverse idler gear (72) configured to mesh with the reverse gear (71) and to selectively rotate together with the middle idler (73); and a first motor generator (51) configured to operate correspondingly with the motor power shaft (3). A vehicle including the power transmission system (100) is also provided.