{
  "$type": "site.standard.document",
  "description": "A method for the onboard diagnosis in a vehicle having a catalytic convertor and a lambda-controlled internal combustion engine in the running operation of the vehicle, includes determining the currently maximum possible oxygen storage capacity of the catalytic convertor as well as a measured…",
  "path": "/patents/1304493",
  "publishedAt": "2021-11-18T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F01N11/007",
    "Bayerische Motoren Werke Aktiengesellschaft"
  ],
  "textContent": "A method for the onboard diagnosis in a vehicle having a catalytic convertor and a lambda-controlled internal combustion engine in the running operation of the vehicle, includes determining the currently maximum possible oxygen storage capacity of the catalytic convertor as well as a measured temporal duration between the lean spike of the pre-catalyst lambda probe and the post-catalyst lambda probe takes place by means of an OSC diagnosis. The method also includes determining a theoretical residual oxygen content and determining a theoretical temporal duration. When the quotient between the measured temporal duration (Δt) and the theoretical temporal duration (Δt) lies within a predefined range delimited by a first and a second threshold value (SW SW), thus: it is determined that the pre-catalyst lambda probe and the post-catalyst lambda probe operate without flaw.",
  "title": "Method for Monitoring Sensor Signals and Quantitative Determining of the Stoichiometric Fuel-Air Ratio of the Type of Fuel Used by Means of an Injector Test and Catalyst Diagnosis in a Vehicle"
}