{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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  "description": "The invention relates to a method for operating an electric motor, in which a pulse-width-modulated base signal having a pulse-width-modulation frequency is generated for an electrical quantity of the electric motor, wherein for the electrical quantity a sinusoidal additional signal with a sine…",
  "path": "/patents/926163",
  "publishedAt": "2017-05-24T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G05B19/02",
    "AUDI AG [DE]"
  ],
  "textContent": "The invention relates to a method for operating an electric motor, in which a pulse-width-modulated base signal having a pulse-width-modulation frequency is generated for an electrical quantity of the electric motor, wherein for the electrical quantity a sinusoidal additional signal with a sine frequency in the acoustically audible frequency range is generated, wherein the base signal and the additional signal are added to form an acoustic signal (14) for the electrical quantity, wherein the electric motor is provided with the electrical quantity with the acoustic signal (14).",
  "title": "METHOD FOR OPERATING AN ELECTROMOTOR"
}