发明名称 |
PARTICULATE MATTER DETECTION DEVICE |
摘要 |
PROBLEM TO BE SOLVED: To preferably dissolve the deterioration in a detection capacity due to ash deposition in an electric resistance type PM sensor.SOLUTION: A heater (44) generates heat by electric conduction so as to heat a detector (41). The heater (44) is controlled by a control unit (30). If a specified processing-time resistance (an electric resistance of the detector at a time when a specified processing-time arrives) is higher than a reference value, the control unit sets heater electrification conditions that include a heater temperature in a first condition of removing ash deposited on the detector. On the other hand, if the specified processing time resistance is the reference value or less, the control unit sets the heater electrification conditions in a second condition of not removing the ash. |
申请公布号 |
JP2014134129(A) |
申请公布日期 |
2014.07.24 |
申请号 |
JP20130002120 |
申请日期 |
2013.01.09 |
申请人 |
NIPPON SOKEN INC;DENSO CORP |
发明人 |
KOIKE KAZUHIKO ; KIMATA TAKEHITO ; OMICHI SHIGEKI |
分类号 |
F01N3/023;F01N3/00;F01N3/18 |
主分类号 |
F01N3/023 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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