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Title:
DPF REGENERATION-COMPLETION-TIME DETERMINATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/165319
Kind Code:
A1
Abstract:
Provided is a DPF regeneration-completion-time determination device that can accurately determine when DPF regeneration is complete. Said device is provided with the following: first electrodes (5) and second electrodes (6) inside a DPF (2); a capacitance-detection circuit (7) that detects the capacitance between said first electrodes (5) and second electrodes (6); and a determination circuit (8). The first and second electrodes, which extend from the inside towards the outside of a regeneration critical plane (3) at which the temperature is equal to a regeneration temperature, are arranged opposite each other along virtual planes (virtual intersecting planes) (4) that intersect said regeneration critical plane (3). When the capacitance detected by the capacitance-detection circuit (7) goes from decreasing to stable, the determination circuit determines that regeneration is complete.

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Inventors:
NODA MASAFUMI (JP)
Application Number:
PCT/JP2012/063449
Publication Date:
December 06, 2012
Filing Date:
May 25, 2012
Export Citation:
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Assignee:
ISUZU MOTORS LTD (JP)
NODA MASAFUMI (JP)
International Classes:
F01N3/023; F01N3/02; G01N15/08; G01N27/22
Domestic Patent References:
WO2007066462A12007-06-14
Foreign References:
JPH0195521U1989-06-23
JPH05106427A1993-04-27
Attorney, Agent or Firm:
KINUTANI Nobuo (JP)
Nobuo Kinutani (JP)
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