Patent ID: 8651255

Claim:
A clutch actuating apparatus for a double clutch transmission, comprising: an operation rod that constructs an operation stroke for engaging a clutch while moving straight; an electric power unit that generates a rotational force; a straight converting unit that converts the rotational force of the electric power unit into a straight movement force for moving straight the operation rod; a supplement force supplying unit for increasing the straight movement force of the operation rod and removing increased straight movement force in accordance with whether the operation rod engages or disengages the clutch; a rod locating unit that changes a position of the operation rod relative to the straight converting unit; and a housing that accommodates the straight converting unit and the supplement force supplying unit and substantially covers the operation rod with a portion of the operation rod extending outside of the housing; wherein: the electric power unit includes an electric motor; the straight converting unit includes a screw rotated by the electric motor, a nut block thread-coupled to the screw to move straight along the screw, and a nut guide formed to the housing and being slidably coupled to the nut block, to guide the nut block to move straight by preventing rotation of the nut block; and the electric motor is connected to be controlled by a controller that receives an output shaft velocity information of the double clutch transmission.