{
  "$type": "site.standard.document",
  "description": "An air-fuel ratio detection device ′ comprises: a sensor element ′ including a sensor cell ; a voltage application circuit ′ applying voltage to the sensor cell; a current detector ′ detecting an output current of the sensor cell; an air-fuel ratio calculating part configured to calculate an…",
  "path": "/patents/1247988",
  "publishedAt": "2019-11-14T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D41/1494",
    "TOYOTA JIDOSHA KABUSHIKI KAISHA"
  ],
  "textContent": "An air-fuel ratio detection device ′ comprises: a sensor element ′ including a sensor cell ; a voltage application circuit ′ applying voltage to the sensor cell; a current detector ′ detecting an output current of the sensor cell; an air-fuel ratio calculating part configured to calculate an air-fuel ratio of an exhaust gas; and a parameter detecting part configured to detect or calculate a temperature correlation parameter correlated with a temperature of the sensor element. The air-fuel ratio calculating part is configured to calculate the air-fuel ratio of the exhaust gas based on the temperature correlation parameter and the output current detected when a predetermined voltage is applied to the sensor cell.",
  "title": "AIR-FUEL RATIO DETECTION DEVICE AND AIR-FUEL RATIO DETECTION METHOD"
}