Method and device for influencing the acoustic radiation of an electrical machine of a motor vehicle

摘要

In order to provide a method for influencing the acoustic radiation of an electrical machine of a motor vehicle, which is applicable over a large acoustic frequency range and allows the simulation of various noise sources, a method (100) for influencing the acoustic radiation of an electric machine (10) of a motor vehicle is proposed wherein an oscillation of at least one predetermined frequency of a stator and / or a rotor of the electric machine (10) is excited or attenuated by superposing a phase signal with a control signal exciting or attenuating the oscillation of the predetermined frequency, and wherein the amplitude and / or the frequency of the control signal is set independently of the amplitude and / or the frequency of the phase signal.