The invention relates to a
servo type
clutch device and the
operation mode thereof characterized in that two rotor shafts in line are respectively connected to an input shaft, a permanent magnetic pole is embedded on one of the two rotors or one of the two rotors is an exciting coil, the other rotor is a winding, the motor is formed by the winding and the permanent pole or the exciting coil, a
servo drive is connected with the winding, a position / speed sensor of the
servo drive is respectively arranged on the two rotor shafts, the
servo drive has functions of torque servo and speed / position servo and a control port connected with a
clutch control unit and receives the setting of torque or speed / position,
mode switch signals and torque limiting setting signals. The
servo drive is connected to a
power storage device, and / or an electric device or the like. The
operation mode is to confirm the work mode as required, the setting value of torque or speed / position and the torque limiting value are dynamically altered, thereby the
clutch is controlled to operate in a master-slave isolation mode or in a gradually softly conjugation / separation mode or in a stable mode according to the given rule. The
excess energy is converted into
electric energy to use or store without
radiation when the
drive shaft speed is larger than that of the driven shaft.