{
  "$type": "site.standard.document",
  "description": "Provided is a DPF failure detection device not only capable of a quick detection but also having less erroneous and a small power consumption. The DPF failure detection device, after starting applying a dust collecting voltage to a dust collecting electrode, applies a measuring voltage to a…",
  "path": "/patents/1006178",
  "publishedAt": "2012-01-18T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B01D46/0086",
    "HONDA MOTOR CO LTD [JP]"
  ],
  "textContent": "Provided is a DPF failure detection device not only capable of a quick detection but also having less erroneous and a small power consumption. The DPF failure detection device, after starting applying a dust collecting voltage to a dust collecting electrode, applies a measuring voltage to a measuring electrode while the dust collection voltage is being applied, thereby measuring the capacitance of a sensor device. The DPF failure detection device also stops applying the dust collecting voltage to the dust collecting electrode in response to the fact that the measured value (C COL ) of this capacitance exceeds a completion criterion (C COL_TH ). Further, the DPF failure detection device applies the measuring voltage to the measuring electrode, thereby measuring the capacitance of the sensor device and obtaining a measured value (C PM ), on the basis of which a DPF failure is determined.",
  "title": "FAILURE DETECTION DEVICE FOR EXHAUST GAS PURIFICATION FILTER"
}