JP2005307883A - 排気浄化装置 - Google Patents
排気浄化装置 Download PDFInfo
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- JP2005307883A JP2005307883A JP2004127116A JP2004127116A JP2005307883A JP 2005307883 A JP2005307883 A JP 2005307883A JP 2004127116 A JP2004127116 A JP 2004127116A JP 2004127116 A JP2004127116 A JP 2004127116A JP 2005307883 A JP2005307883 A JP 2005307883A
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- Prior art keywords
- differential pressure
- zero point
- filter
- engine
- point calibration
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- Y02T10/47—
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- Processes For Solid Components From Exhaust (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
【解決手段】エンジン20の排気通路22に配設されて排気中のパティキュレートを捕集するフィルタ1と、フィルタ上流側の排圧とフィルタ下流側の排圧との差圧を検出する差圧センサ3と、エンジン停止状態で差圧センサ3のゼロ点校正を行うゼロ点校正手段30と、を備えた排気浄化装置において、ゼロ点校正手段30は、エンジンが停止して所定の遅延時間を経過してからゼロ点校正を行う。
【選択図】図2
Description
2 燃料噴射装置
3 差圧センサ
6 エンジン回転速度センサ
7 エンジン負荷センサ
10 水温センサ
20 エンジン
21 吸気通路
22 排気通路
30 コントローラ
Claims (4)
- エンジンの排気通路に配設されて排気中のパティキュレートを捕集するフィルタと、フィルタ上流側の排圧とフィルタ下流側の排圧との差圧を検出する差圧センサと、エンジン停止状態で差圧センサのゼロ点校正を行うゼロ点校正手段と、を備えた排気浄化装置において、
前記ゼロ点校正手段は、エンジンが停止して所定の遅延時間を経過してからゼロ点校正を行うことを特徴とする排気浄化装置。 - 前記所定の遅延時間は、エンジン停止直後の差圧センサの検出値を基に設定することを特徴とする請求項1に記載の排気浄化装置。
- 前記ゼロ点校正手段は、エンジン温度が所定温度を超えている場合にゼロ点校正を行うことを特徴とする請求項1または2に記載の排気浄化装置。
- 前記ゼロ点校正手段は、外気温度が所定温度以下にある場合にゼロ点校正を行うことを特徴とする請求項1〜3のいずれか1つに記載の排気浄化装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004127116A JP4483393B2 (ja) | 2004-04-22 | 2004-04-22 | 排気浄化装置 |
DE602005013142T DE602005013142D1 (de) | 2004-04-22 | 2005-04-22 | Steuerungssystem für die Regenerierung eines Dieselpartikelfilters |
EP05008889A EP1591635B1 (en) | 2004-04-22 | 2005-04-22 | Regeneration control of diesel particulate filter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004127116A JP4483393B2 (ja) | 2004-04-22 | 2004-04-22 | 排気浄化装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005307883A true JP2005307883A (ja) | 2005-11-04 |
JP4483393B2 JP4483393B2 (ja) | 2010-06-16 |
Family
ID=35436936
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004127116A Expired - Fee Related JP4483393B2 (ja) | 2004-04-22 | 2004-04-22 | 排気浄化装置 |
Country Status (1)
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JP (1) | JP4483393B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113217155A (zh) * | 2021-04-20 | 2021-08-06 | 潍柴动力股份有限公司 | 洒水车dpf再生方法、再生系统和洒水车 |
-
2004
- 2004-04-22 JP JP2004127116A patent/JP4483393B2/ja not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113217155A (zh) * | 2021-04-20 | 2021-08-06 | 潍柴动力股份有限公司 | 洒水车dpf再生方法、再生系统和洒水车 |
CN113217155B (zh) * | 2021-04-20 | 2022-04-26 | 潍柴动力股份有限公司 | 洒水车dpf再生方法、再生系统和洒水车 |
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Publication number | Publication date |
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JP4483393B2 (ja) | 2010-06-16 |
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