Patent ID: 6229234
Filing Date: 2001-05-08
Classification: G01H,G01M,H02P

Abstract:
A rotating electric motor system capable of vibrating comprising:an electric motor (7) having a rotor and a stator, the rotor and the stator forming a unit capable of vibrating;a power amplifier (4) for powering the electric motor (7), having a power output (6) connected to the electric motor (7) and a control signal input (8) for receiving a control signal; anda signal generator (11) for generating the control signal, the control signal having a continuous component for rotating the rotor with respect to the stator, and an alternating component for vibrating the electric motor (7);wherein the unit capable of vibrating has a first passband allowing mechanical vibrations within an audible frequency range, the power amplifier (4) and the signal generator (11) have respective passbands including the first passband, the electric motor (7) is a synchronous electric motor-wheel with permanent magnets for a vehicle, and the power amplifier (4) comprises a current regulator (3) and an inverter (5).