{
  "$type": "site.standard.document",
  "description": "A magnet temperature estimating device for a motor provided with a rotor having magnets and configured to output a rotational motive force, and a stator having a plurality of coils opposing the rotor with an aperture therebetween, is provided. The device includes a sensor configured to detect an…",
  "path": "/patents/1419387",
  "publishedAt": "2024-04-03T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60K6/24",
    "MAZDA MOTOR [JP]"
  ],
  "textContent": "A magnet temperature estimating device for a motor provided with a rotor having magnets and configured to output a rotational motive force, and a stator having a plurality of coils opposing the rotor with an aperture therebetween, is provided. The device includes a sensor configured to detect an induced voltage induced by rotation of the rotor, and a controller configured to control the motor by supplying power to the plurality of coils in response to an input of a detection signal from the sensor. The controller estimates a temperature of one of the magnets based on an amplitude of a frequency spectrum corresponding to a given frequency, among frequency components constituting the induced voltage.",
  "title": "MAGNET TEMPERATURE ESTIMATING DEVICE FOR MOTOR, HYBRID VEHICLE PROVIDED WITH THE SAME, AND METHOD OF ESTIMATING MAGNET TEMPERATURE"
}