{
  "$type": "site.standard.document",
  "description": "The method involves selecting combustion indicators e.g. crank angle position (CA10), and defining a multidimensional space in which each dimension corresponds to one of the indicators and combustion is represented by a point. A closed surface surrounding the points corresponding to normal…",
  "path": "/patents/993497",
  "publishedAt": "2013-01-23T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D35/02",
    "IFP ENERGIES NOUVELLES [FR]"
  ],
  "textContent": "The method involves selecting combustion indicators e.g. crank angle position (CA10), and defining a multidimensional space in which each dimension corresponds to one of the indicators and combustion is represented by a point. A closed surface surrounding the points corresponding to normal combustions, which does not surround points corresponding to abnormal combustions is defined in the space. Combustion of a cycle is represented by a point in the space by determining the indicators. A position of the point is determined relative to the surface to deduce an abnormal nature of combustion. The distance between the point and the surface is determined to deduce a severity of the abnormal nature of the combustion. The progress of the abnormal combustion is controlled as a function of the severity of the abnormal nature of the combustion.",
  "title": "Method for detecting and characterising abnormal combustion in internal combustion engines"
}