ELECTRIC MACHINE FOR A MOTOR VEHICLE, COMPRISING A PIEZOELECTRIC BEARING MODULE

An electric machine for a motor vehicle, includes a stator and a rotor mounted on the stator movably in rotation by a rotary shaft and a plurality of bearing modules>A fixed element of at least one bearing module includes a “main” piezoelectric transceiver configured to transmit an ultrasonic power supply signal, and the electric machine includes a sensor mounted inside the rotor.