Transmission with a torsion spring and method for operating a transmission

A transmission for continuously variable transmission of a torque or power from a drive shaft axially supported on a shaft to an output shaft, the transmission comprising:

• a coupling wheel and a torsion spring, wherein the coupling wheel is rotatably mounted on the shaft and connected to the output shaft by the torsion spring;
• a first coupling for generating and canceling a rotationally fixed, planar, force-fitting first coupling between the drive shaft and the coupling wheel;
• a support device, which is connected and rotatable with the output shaft at a fixed gearing of 1:
• X, wherein X can be any real number between −10 and 1;
• and
• a second coupling for generating and canceling a rotationally fixed, force-fitting second coupling between the support device and the coupling wheel,
• wherein the transmission is connected with a control unit and several sensors, wherein the sensors are used to determine absolute and/or relative rotational speeds of the coupling wheel, drive shaft, output shaft and/or support device, so that the control unit can initiate the generation and cancelation of the coupling by the first and second couplings based on determined rotational speeds at suitable times, so that the first and second couplings can be coupled or decoupled at freely selectable times.