PARTICULATE MATTER DETECTION DEVICE

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...

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Bibliographic Details
Main Authors KIMATA TAKEHITO, OMICHI SHIGEKI, KOIKE KAZUHIKO
Format Patent
LanguageEnglish
Published 24.07.2014
Subjects
BLASTING
ENGINE PLANTS IN GENERAL
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
STEAM ENGINES
WEAPONS
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Summary: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.
Bibliography:Application Number: JP20130002120