JP5084570B2 - 内燃機関の燃焼状態判定方法 - Google Patents
内燃機関の燃焼状態判定方法 Download PDFInfo
- Publication number
- JP5084570B2 JP5084570B2 JP2008068442A JP2008068442A JP5084570B2 JP 5084570 B2 JP5084570 B2 JP 5084570B2 JP 2008068442 A JP2008068442 A JP 2008068442A JP 2008068442 A JP2008068442 A JP 2008068442A JP 5084570 B2 JP5084570 B2 JP 5084570B2
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- JP
- Japan
- Prior art keywords
- current
- combustion
- resonance
- time
- detected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P17/00—Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines
- F02P17/12—Testing characteristics of the spark, ignition voltage or current
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/021—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions using an ionic current sensor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
- G01M15/11—Testing internal-combustion engines by detecting misfire
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
- F02D2200/1015—Engines misfires
Description
ここで、Cはコンデンサ25dの容量、Lは点火コイル24aの二次側のインダクタンス、Vは放電終了時のコンデンサ25dの吹き消え電圧、Rは点火プラグ18の両電極間に混合気の燃焼に伴いイオンが発生することに伴う抵抗成分である。なお、図4は燃焼時、図5は失火時において略LC共振電流のみが発生する場合、図6はLC共振電流に加えて放電後にノイズだれが発生する場合、図7はLC共振電流に加えてスパイクノイズが発生する場合をそれぞれ示す。
6…制御装置
18…点火プラグ
Claims (1)
- 点火プラグにイオン電流検出回路を接続した内燃機関の燃焼状態判定方法であって、点火プラグの放電終了時に点火コイルの二次側と点火プラグとの間のLC共振に由来して点火コイルの二次側に発生する電流を検知し、検知した電流の前記LC共振に由来する波形の持続時間が所定値を上回る場合に失火状態であると判定することを特徴とする内燃機関の燃焼状態判定方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008068442A JP5084570B2 (ja) | 2008-03-17 | 2008-03-17 | 内燃機関の燃焼状態判定方法 |
EP09722412.5A EP2253833A4 (en) | 2008-03-17 | 2009-01-06 | Method for judging combustion state of internal combustion |
PCT/JP2009/050015 WO2009116303A1 (ja) | 2008-03-17 | 2009-01-06 | 内燃機関の燃焼状態判定方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008068442A JP5084570B2 (ja) | 2008-03-17 | 2008-03-17 | 内燃機関の燃焼状態判定方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009221990A JP2009221990A (ja) | 2009-10-01 |
JP5084570B2 true JP5084570B2 (ja) | 2012-11-28 |
Family
ID=41090714
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008068442A Active JP5084570B2 (ja) | 2008-03-17 | 2008-03-17 | 内燃機関の燃焼状態判定方法 |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2253833A4 (ja) |
JP (1) | JP5084570B2 (ja) |
WO (1) | WO2009116303A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5362601B2 (ja) * | 2010-01-28 | 2013-12-11 | ダイヤモンド電機株式会社 | 内燃機関用の燃焼制御装置 |
JP5871687B2 (ja) * | 2012-03-29 | 2016-03-01 | ダイハツ工業株式会社 | 内燃機関の制御装置 |
DE102013004728A1 (de) * | 2013-03-19 | 2014-09-25 | Daimler Ag | Verfahren zum Betreiben einer Verbrennungskraftmaschine sowie Verbrennungskraftmaschine |
CN105593502B (zh) * | 2013-10-08 | 2018-10-19 | 日立汽车系统株式会社 | 内燃机的控制装置 |
JP6349895B2 (ja) | 2014-04-10 | 2018-07-04 | 株式会社デンソー | 内燃機関用点火装置 |
JPWO2016063430A1 (ja) * | 2014-10-24 | 2017-07-06 | 日立オートモティブシステムズ阪神株式会社 | 内燃機関用失火検出方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07286552A (ja) | 1994-04-19 | 1995-10-31 | Hitachi Ltd | 内燃機関の失火検出装置 |
JPH1113616A (ja) * | 1997-06-19 | 1999-01-19 | Denso Corp | 内燃機関の燃焼検出装置 |
JPH11270450A (ja) * | 1998-03-23 | 1999-10-05 | Denso Corp | 内燃機関制御装置 |
JP4134879B2 (ja) * | 2003-10-24 | 2008-08-20 | 株式会社デンソー | 内燃機関のイオン電流検出装置 |
JP4483708B2 (ja) * | 2005-06-02 | 2010-06-16 | 株式会社デンソー | 内燃機関の点火系異常検出装置 |
JP2007315297A (ja) * | 2006-05-26 | 2007-12-06 | Denso Corp | 内燃機関の燃焼状態判定装置 |
JP2008051031A (ja) * | 2006-08-25 | 2008-03-06 | Diamond Electric Mfg Co Ltd | 内燃機関の点火装置及びこれを用いた失火検出方法 |
-
2008
- 2008-03-17 JP JP2008068442A patent/JP5084570B2/ja active Active
-
2009
- 2009-01-06 EP EP09722412.5A patent/EP2253833A4/en not_active Withdrawn
- 2009-01-06 WO PCT/JP2009/050015 patent/WO2009116303A1/ja active Application Filing
Also Published As
Publication number | Publication date |
---|---|
JP2009221990A (ja) | 2009-10-01 |
EP2253833A4 (en) | 2017-07-19 |
WO2009116303A1 (ja) | 2009-09-24 |
EP2253833A1 (en) | 2010-11-24 |
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