{
  "$type": "site.standard.document",
  "description": "A contactless power transfer system (1) includes a power supply ECU (250) configured to control an inverter (220) to stop power transmission from a power transmission unit (240) when a current generated in the power transmission unit (240) exceeds a predetermined threshold value due to…",
  "path": "/patents/929715",
  "publishedAt": "2017-03-08T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60L53/122",
    "TOYOTA MOTOR CO LTD [JP]"
  ],
  "textContent": "A contactless power transfer system (1) includes a power supply ECU (250) configured to control an inverter (220) to stop power transmission from a power transmission unit (240) when a current generated in the power transmission unit (240) exceeds a predetermined threshold value due to short-circuiting of a power reception coil comprised in a power reception unit (310). The power supply ECU (250) estimates a coupling state between a power transmission coil comprised in the power transmission unit (240) and the power reception coil, and changes the predetermined threshold value in accordance with the estimated coupling state.",
  "title": "CONTACTLESS POWER TRANSFER SYSTEM AND POWER TRANSMISSION DEVICE"
}