Power transmission system and vehicle comprising the same

A power transmission system for a vehicle, comprising

• a dual clutch comprising an input terminal, a first output terminal and a second output terminal;
• an engine coupled with the input terminal of the dual clutch;
• a first input shaft coupled with the first output terminal of the dual clutch;
• a second input shaft fitted over the first input shaft and coupled with the second output terminal of the dual clutch, wherein each of the first and second input shafts is provided with a shift driving gear;
• a first output shaft and a second output shaft, wherein each of the first and second output shafts is provided with a shift driven gear configured to mesh with a corresponding shift driving gear;
• a first output gear fixed on the first output shaft;
• a second output gear fixed on the second output shaft;
• a motor power shaft;
• first and second motor gears fitted over the motor power shaft;
• a reverse gear fitted over the motor power shaft;
• a motor synchronizer disposed on the motor power shaft and between the first and second motor gears, wherein the first motor gear is configured to perform power transmission with the shift driving gear on one of the first and second input shafts via a middle idler, the second motor gear is configured to perform power transmission with a transmission gear fixed on one of the first and second output shafts, and the reverse gear, the first motor gear and the second motor gear mesh with a driven gear of a main reducer of the vehicle;
• a reverse idler gear configured to mesh with the reverse gear;
• a reverse synchronizer configured to engage the reverse idler gear and the middle idler;
• and
• a first motor generator connected with the motor power shaft.