Vehicle protection device works by detection of rotation of wheel rim and has an inductive sensor coupled to a toothed section of a wheel hub that triggers an alarm when the wheel rotates with the engine switched off

摘要

Device comprises a rotation sensor (5) coupled with a vehicle wheel rim (1) that activates an alarm when the wheel rotates and the vehicle is not in operating mode. The device comprises measurement coils (4) and a wheel hub (2) with teeth (5) arranged so that the magnetic field changes as the wheel rotates.