JP4592612B2 - 内燃機関のイオン電流による空燃比検知方法 - Google Patents
内燃機関のイオン電流による空燃比検知方法 Download PDFInfo
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- JP4592612B2 JP4592612B2 JP2006028126A JP2006028126A JP4592612B2 JP 4592612 B2 JP4592612 B2 JP 4592612B2 JP 2006028126 A JP2006028126 A JP 2006028126A JP 2006028126 A JP2006028126 A JP 2006028126A JP 4592612 B2 JP4592612 B2 JP 4592612B2
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- cylinder
- fuel ratio
- air
- variation rate
- generation period
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Description
100a、100b、100c、100d…気筒
6…電子制御装置
7…中央演算処理装置
8…記憶装置
9…入力インターフェース
11…出力インターフェース
I…イオン電流
P…発生期間
N…気筒別変動率
NA…全気筒変動率
OV…判定値
Claims (1)
- 多気筒の内燃機関におけるそれぞれの気筒の燃焼室内に発生するイオン電流を検出し、検出したイオン電流の発生している発生期間を計測し、当該発生期間を基に演算した各気筒における変動率に基づいて各気筒の空燃比を検知し得るものであって、
内燃機関の運転が初爆から所定サイクルになるまでの間は、計測した全気筒における発生期間を基に算出された全気筒変動率に基づいて各気筒の空燃比を検知し、前記所定サイクル以後は、気筒別変動率に基づいて空燃比の検知を行う内燃機関のイオン電流による空燃比検知方法。
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JP2006028126A JP4592612B2 (ja) | 2006-02-06 | 2006-02-06 | 内燃機関のイオン電流による空燃比検知方法 |
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JP2006028126A JP4592612B2 (ja) | 2006-02-06 | 2006-02-06 | 内燃機関のイオン電流による空燃比検知方法 |
Publications (2)
Publication Number | Publication Date |
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JP2007205321A JP2007205321A (ja) | 2007-08-16 |
JP4592612B2 true JP4592612B2 (ja) | 2010-12-01 |
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JP2006028126A Expired - Fee Related JP4592612B2 (ja) | 2006-02-06 | 2006-02-06 | 内燃機関のイオン電流による空燃比検知方法 |
Country Status (1)
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JP (1) | JP4592612B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0534244A (ja) * | 1991-08-01 | 1993-02-09 | Hitachi Ltd | 内燃機関の燃焼状態検出装置 |
JPH08261047A (ja) * | 1995-03-27 | 1996-10-08 | Daihatsu Motor Co Ltd | リーン限界検出方法 |
JPH10176594A (ja) * | 1996-12-18 | 1998-06-30 | Daihatsu Motor Co Ltd | 内燃機関の燃焼変動検出方法 |
JP2000045846A (ja) * | 1998-07-30 | 2000-02-15 | Toyota Motor Corp | 内燃機関の燃料噴射量制御装置 |
JP2000054942A (ja) * | 1998-08-07 | 2000-02-22 | Toyota Motor Corp | 内燃機関の空燃比制御装置 |
JP3150429B2 (ja) * | 1992-07-21 | 2001-03-26 | ダイハツ工業株式会社 | イオン電流によるリーン限界検出方法 |
-
2006
- 2006-02-06 JP JP2006028126A patent/JP4592612B2/ja not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0534244A (ja) * | 1991-08-01 | 1993-02-09 | Hitachi Ltd | 内燃機関の燃焼状態検出装置 |
JP3150429B2 (ja) * | 1992-07-21 | 2001-03-26 | ダイハツ工業株式会社 | イオン電流によるリーン限界検出方法 |
JPH08261047A (ja) * | 1995-03-27 | 1996-10-08 | Daihatsu Motor Co Ltd | リーン限界検出方法 |
JPH10176594A (ja) * | 1996-12-18 | 1998-06-30 | Daihatsu Motor Co Ltd | 内燃機関の燃焼変動検出方法 |
JP2000045846A (ja) * | 1998-07-30 | 2000-02-15 | Toyota Motor Corp | 内燃機関の燃料噴射量制御装置 |
JP2000054942A (ja) * | 1998-08-07 | 2000-02-22 | Toyota Motor Corp | 内燃機関の空燃比制御装置 |
Also Published As
Publication number | Publication date |
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JP2007205321A (ja) | 2007-08-16 |
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