Apparatus and method for detecting rotation of a wheel of a vehicle normally connected

The invention relates to an apparatus and a method for detecting a rotation of a wheel of a normally connected vehicle, especially a rail vehicle such as a train. To provide an electroless-working solution which is more reliable than previous solutions, an inventive device (1) comprises a sensor device (2) with a de-energized in response to the rotation of the wheel from an initial position (10) in a motion indication (11) movable Abgreiforgan (4), and movable in response to a rotation of the wheel relative to the sensor means (2) deflecting device (3), which cooperates Abgreiforgan (4) with the deflecting device (3). An inventive method includes the steps of: switching at least one sensor device (2) by moving a Abgreiforgans (4) by a motion indication (11) in an initial position (10); De-energizing of the vehicle; Deflecting at least one Abgreiforgans in the motion indication (11) during movement of the vehicle; Turning on the power supply of the vehicle; automatically detecting the number of Abgreiforgane (4) located in the movement of the indication (11).