Patent ID: 9203338
Filing Date: 2015-12-01
Classification: H02K

Abstract:
1. An electric power assembly for a vehicle, the assembly comprising: an electric motor including a stator and a rotor being rotatable about a pivot axis relative to the stator; an inverter coupled to the electric motor and including a power switching device that outputs an electrical signal from the inverter at a first frequency and having interference at a second frequency being greater than the first frequency, and wherein the second frequency is a byproduct of the electrical signal creating the first frequency, and with the stator electrically connected to the inverter to receive the first frequency such that the stator produces a first magnetic field; and a frequency filter attached to the rotor and directs the portion of the electrical signal having the second frequency to the rotor such that the rotor produces a second magnetic field that interacts with the first magnetic field to rotate the rotor about the pivot axis relative to the stator.