The dct transmission structure including one way clutch for intertia driving and method of controlling the same

The inertia driving double-clutch transmission and a control method for including a one-way clutch can achieve the maximum efficiency in inertia when driving is started. A double clutch transmission (DCT, Double Clutch Transmission) double-clutch transmission for the inertia traveling of the present invention is installed between the engine and the propeller shaft by changing the torque and speed to make it compatible with the power of the engine to the running condition of the vehicle for transmitting the driving wheel method, the double-clutch gear is the highest stage or in a separate special steps of the transmission is disposed a one-way clutch, the engine and transmission in inertia when driving characterized in that it does not act as an internal resistance. According to the invention, by increasing the flat high-speed driving inertia running efficiency can be improved fuel efficiency. That is, it is possible until a separate inertia Excel input during running at the highest stage to maintain a pew eolkeot (fuel cut) or idle (idle) to realize improved fuel economy.