METHOD FOR INTERRUPTING AN ELECTRICAL POWER SUPPLY OF AN ELECTRIC MOTOR INVOLVED IN DRIVING A BICYCLE , DATA PROCESSING PROGRAM FOR PERFORMING SUCH A METHOD AND BICYCLE COMPRISING SUCH A DATA PROCESSING PROGRAM

A method for interrupting a power supply of an electric motor (15) that provides auxiliary drive support to a bicycle (1) comprises the method steps of providing a bicycle (1) with an auxiliary drive electric motor (15), detecting a critical braking operation of the bicycle (1) by means of a sensor unit (23), and interrupting the power supply of the auxiliary drive electric motor (15) by means of a control unit (18), wherein a state variable of the bicycle (1) is monitored in order to detect the critical braking state.