{
  "$type": "site.standard.document",
  "description": "The unit (1) has a positive temperature co-efficient (PTC) heating element (4) for heating air flowing through the unit, and a control unit (2) for adjusting amount of heat in the heating element. A temperature determination unit (3) determines cold air temperature from a weighted combination of a…",
  "path": "/patents/1006614",
  "publishedAt": "2012-01-04T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60H1/00",
    "EBERSPAECHER CATEM GMBH & CO [DE]"
  ],
  "textContent": "The unit (1) has a positive temperature co-efficient (PTC) heating element (4) for heating air flowing through the unit, and a control unit (2) for adjusting amount of heat in the heating element. A temperature determination unit (3) determines cold air temperature from a weighted combination of a vehicle interior and vehicle exterior temperature. The control unit adjusts the amount of heat as a function of the determined cold temperature such that temperature of the air discharged from the unit is varied based on vehicle speed. Independent claims are also included for the following: (1) a motor vehicle seat comprising a backrest and an air duct (2) a method for controlling an electric auxiliary heating unit for a motor vehicle.",
  "title": "Additional electric heater for vehicles"
}