Shifting control method for vehicle with DCT

A shift control method of a vehicle mounted with a dual clutch transmission (DCT), the shifting control method comprising:

• a first preparing step of, by a controller, controlling a torque of an N-th stage clutch to a predetermined minimum torque and increasing a torque of an N−1-th stage clutch to a predetermined standby torque, in a response that a same-shaft power on down shift is initiated and an engagement of an N−1-th stage gear is completed;
• a first handover step of, by the controller, releasing the torque of the N-th stage clutch and increasing the torque of the N−1-th stage clutch, in a response that the torque of the N−1-th stage clutch reaches the predetermined standby torque and a rotation speed of an engine is equal to or greater than a speed of the N−1-th stage clutch;
• a gear changing step of, by the controller, releasing an N-th stage gear and then initiating an engagement of an N−2-th stage gear;
• a synchronization maintaining step of, by the controller, maintaining a synchronized state by adjusting the torque of the N−1-th stage clutch in a response that it is determined by the controller that the rotation speed of the engine is synchronized with a speed of the N−2-th stage clutch;
• a second preparing step of, by the controller, increasing the torque of the N−2-th stage clutch to the predetermined standby torque in a response that the engagement of the N−2-th stage gear is completed;
• and
• a second handover step of, by the controller, releasing the torque of the N−1-th clutch and increasing the torque of the N−2-th stage clutch, in a response that the torque of the N−2-th stage clutch reaches the predetermined standby torque.