{
  "$type": "site.standard.document",
  "description": "The method involves detecting exhaust gas sensor signals upstream and downstream of the catalyser in an engine controller, which sets the air-fuel ratio to a predetermined value based on the upstream sensor signal in closed-loop mode. If the ratio deviates from a stoichiometric ratio the signal of…",
  "path": "/patents/1111095",
  "publishedAt": "2001-08-08T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D41/14",
    "DELPHI TECH INC [US]"
  ],
  "textContent": "The method involves detecting exhaust gas sensor signals upstream and downstream of the catalyser in an engine controller, which sets the air-fuel ratio to a predetermined value based on the upstream sensor signal in closed-loop mode. If the ratio deviates from a stoichiometric ratio the signal of the downstream sensor is used to regulate the set ratio to the stoichiometric ratio.",
  "title": "Method for controlling the air-fuel ratio of internal combustion engine"
}