{
  "$type": "site.standard.document",
  "description": "An apparatus for controlling a travel mode of a four-wheel drive vehicle, the apparatus includes a heat generation amount calculation unit configured to determine a heat loss amount of a torque converter, a rough terrain travel start determination unit configured to determine, whether to start…",
  "path": "/patents/1380413",
  "publishedAt": "2026-04-02T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60W30/1843",
    "Hyundai Motor Company"
  ],
  "textContent": "An apparatus for controlling a travel mode of a four-wheel drive vehicle, the apparatus includes a heat generation amount calculation unit configured to determine a heat loss amount of a torque converter, a rough terrain travel start determination unit configured to determine, whether to start travel on a road having rough terrain conditions, a first travel mode control unit configured to control entry into a semi-off-road travel mode when a current travel mode is an on-road travel mode, a rough terrain travel maintenance determination unit configured to determine whether to maintain the travel on the road having the rough terrain conditions during the semi-off-road travel mode, based on the heat loss amount, and a second travel mode control unit configured to control entry into a dedicated off-road travel mode from the current travel mode when it is determined to maintain the travel on the road having the rough terrain conditions.",
  "title": "APPARATUS AND METHOD FOR CONTROLLING TRAVEL MODE OF FOUR-WHEEL DRIVE VEHICLE"
}