Connecting clutch for a hybrid drive train having a torque sensor

A clutch for a hybrid drive train of a motor vehicle, comprising:

• a first connection part that is connectable in a rotationally fixed fashion to an output shaft of an internal combustion engine, and
• a second connection part that is connectable in a rotationally fixed fashion to a shaft of at least one of a transmission or a rotor of an electric drive engine,
• said first connection part and said second connection part are connected to each other in a closed position of the clutch in a torque transmitting manner, while in an opened position of the clutch the connection parts are arranged interrupting a flow of torque, and a clutch actuating system, comprising:
• a ramp mechanism switching the clutch between the opened and the closed position, with the ramp mechanism being effectively connected via planetary gearing to the connection parts,
• the first connection part comprises two guiding sections connected in a rotationally fixed fashion via a torque storage device, and
• the torque storage device is arranged such that the guiding sections at least in a closed position are spring-elastically pre-stressed in reference to each other in a direction of rotation,
• the torque storage device comprises a mechanical spring unit,
• the mechanical spring unit comprises several mechanical spring elements which cooperate such that the mechanical spring elements successively elastically engage or disengage over a range of an angle of rotation,
• a first one of the spring elements is a pressure spring, and
• a second one of the spring elements is a leaf spring or a leaf spring package.