Invention Grant
- Patent Title: Particulate matter detection apparatus
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Application No.: US15319541Application Date: 2015-06-12
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Publication No.: US10208643B2Publication Date: 2019-02-19
- Inventor: Go Miyagawa , Hirokatsu Imagawa , Masayuki Tamura
- Applicant: DENSO CORPORATION
- Applicant Address: JP Kariya
- Assignee: DENSO CORPORATION
- Current Assignee: DENSO CORPORATION
- Current Assignee Address: JP Kariya
- Agency: Nixon & Vanderhye P.C.
- Priority: JP2014-123664 20140616; JP2015-028846 20150217
- International Application: PCT/JP2015/066978 WO 20150612
- International Announcement: WO2015/194468 WO 20151223
- Main IPC: F01N11/00
- IPC: F01N11/00 ; G01N15/06 ; F01N3/021 ; G01N27/04 ; F02D41/06 ; F02D41/14 ; F02D41/22 ; G01N15/00

Abstract:
A particulate matter detection apparatus includes a particulate matter quantity detection means, a temperature detection means that detects the temperature of exhaust gas, a control unit and a heating means. The particulate matter quantity detection means includes a particulate matter deposition portion that deposits thereon part of particulate matter contained in the exhaust gas emitted from an internal combustion engine and a pair of opposite electrodes arranged apart from each other on the particulate matter deposition portion. The control unit determines a deposition quantity of the particulate matter on the particulate matter deposition portion based on an electrical signal outputted by the particulate matter quantity detection means and receives information on the temperature of the exhaust gas detected by the temperature detection means. The control unit controls the heating means to heat the particulate matter deposition portion to 300° C.-800° C. during a cold start of the internal combustion engine.
Public/Granted literature
- US20170122179A1 PARTICULATE MATTER DETECTION APPARATUS Public/Granted day:2017-05-04
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