{
  "$type": "site.standard.document",
  "description": "It is an object of the present invention to make the temperature of a glow plug tip extremely simply and precisely estimable. An arithmetic and control unit 23 is configured to arithmetically calculate a resistance value of a glow plug 1 on the basis of an energization current of the glow plug 1…",
  "path": "/patents/1000017",
  "publishedAt": "2012-07-25T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02P19/025",
    "BOSCH CORP [JP]"
  ],
  "textContent": "It is an object of the present invention to make the temperature of a glow plug tip extremely simply and precisely estimable. An arithmetic and control unit 23 is configured to arithmetically calculate a resistance value of a glow plug 1 on the basis of an energization current of the glow plug 1 and a voltage applied to the glow plug 1 (S104), perform a multiplication of the resistance value and a constant that has been determined beforehand on the basis of an electrical characteristic of the glow plug 1, input a predetermined heater reference point temperature (S106), calculate an offset with a predetermined offset arithmetic expression from the heater reference point temperature (S108), correct the multiplication result with that offset, and take the correction result as an estimated temperature of a tip of the glow plug 1.",
  "title": "Glow plug tip temperature estimating method and glow plug drive control device"
}