{
  "$type": "site.standard.document",
  "description": "The PWM based operating method involves measuring a voltage present at a heating element (R) e.g. glow plug and/or a current flowing through the heating element at specified intervals during a voltage pulse application. Measured values or corresponding values determined from the measured values are…",
  "path": "/patents/1014670",
  "publishedAt": "2011-03-23T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02P19/022",
    "BORGWARNER BERU SYSTEMS GMBH [DE]"
  ],
  "textContent": "The PWM based operating method involves measuring a voltage present at a heating element (R) e.g. glow plug and/or a current flowing through the heating element at specified intervals during a voltage pulse application. Measured values or corresponding values determined from the measured values are added to calculate a sum value. The sum value increases with energy fed into the heating element through the voltage pulse application. The voltage pulse application is ended when the sum value has reached a target value.",
  "title": "Method for operating a heating element in a motor vehicle by means of pulse width modulation"
}