{
  "$type": "site.standard.document",
  "description": "Accurate detection of abnormal combustion is enabled even in an engine in which a combustion chamber has only one ignition plug provided with an ion-current detection function. An engine control system according to the invention is provided with an ion detector(4) for detecting ions generated…",
  "path": "/patents/957751",
  "publishedAt": "2015-09-16T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D35/021",
    "HITACHI AUTOMOTIVE SYSTEMS LTD [JP]"
  ],
  "textContent": "Accurate detection of abnormal combustion is enabled even in an engine in which a combustion chamber has only one ignition plug provided with an ion-current detection function. An engine control system according to the invention is provided with an ion detector(4) for detecting ions generated during combustion, and a control unit (20) including a combustion-state determination unit for determining on whether the combustion state of the engine is either a normal combustion or an abnormal combustion on the basis of a time-length (Δt) from a fall-time of an ignition-control signal (4h) to a rise-time of an ion-signal (4g) outputted from the ion detector.",
  "title": "ENGINE CONTROL SYSTEM"
}