JP6497048B2 - 内燃機関の空燃比学習制御装置 - Google Patents
内燃機関の空燃比学習制御装置 Download PDFInfo
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- JP6497048B2 JP6497048B2 JP2014244915A JP2014244915A JP6497048B2 JP 6497048 B2 JP6497048 B2 JP 6497048B2 JP 2014244915 A JP2014244915 A JP 2014244915A JP 2014244915 A JP2014244915 A JP 2014244915A JP 6497048 B2 JP6497048 B2 JP 6497048B2
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- fuel ratio
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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
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/003—Adding fuel vapours, e.g. drawn from engine fuel reservoir
- F02D41/0045—Estimating, calculating or determining the purging rate, amount, flow or concentration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
- F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1473—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation method
- F02D41/1475—Regulating the air fuel ratio at a value other than stoichiometry
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2425—Particular ways of programming the data
- F02D41/2429—Methods of calibrating or learning
- F02D41/2441—Methods of calibrating or learning characterised by the learning conditions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2425—Particular ways of programming the data
- F02D41/2429—Methods of calibrating or learning
- F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
- F02D41/2454—Learning of the air-fuel ratio control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
Description
・エンジン回転数―スロットル開度フラグ(NE−VT_flug)
・水温フラグ(Temperture_flug)
・Δスロットル開度フラグ(ΔVT_flug)
・エバポフラグ(evapo_flug)
15 吸気装置
16 排気装置
18 吸気通路
19 排気通路
22 燃料噴射弁
24 キャニスタ
25 制御ユニット
26 スロットルポジションセンサ
29 クランク角度センサ
31 酸素センサ
41 基本噴射時間算出手段
42 フィードバック補正算出手段
43 空燃比学習補正手段
44 最終噴射時間算出手段
45 学習許可判定手段
46 ガス放出量算出手段
Claims (2)
- 吸気通路に燃料を噴射する燃料噴射弁と、エバポガスを前記吸気通路に放出するようにして前記吸気通路に連通するように設けられたキャニスタと、排気通路を流通する排ガスの残存酸素濃度を検出する酸素センサと、前記酸素センサの検出値に基づく空燃比を目標空燃比に近づけるための学習制御を行って前記燃料噴射弁からの燃料噴射量を制御する制御手段と、を備え、
前記制御手段は、内燃機関の状態に応じて前記キャニスタからのガス総放出量推定値を算出するガス放出量算出手段と、前記酸素センサの検出値に基づいて目標空燃比に近づくようにフィードバック補正値を算出してフィードバック制御を行うフィードバック補正算出手段と、前記フィードバック補正値の平均値とその中央値との差を空燃比学習補正値として算出する空燃比学習補正算出手段と、前記空燃比学習補正値を用いて最終噴射時間を算出する最終噴射時間算出手段と、を備え、
前記ガス総放出量推定値が所定の閾値以上に達した場合に、前記空燃比学習補正算出手段により前記空燃比学習補正値を算出し、且つ、前記閾値は、スロットル開度の任意の範囲毎に異なるように設定されている
ことを特徴とする内燃機関の空燃比学習制御装置。 - 吸気通路に燃料を噴射する燃料噴射弁と、エバポガスを前記吸気通路に放出するようにして前記吸気通路に連通するように設けられたキャニスタと、排気通路を流通する排ガスの残存酸素濃度を検出する酸素センサと、前記酸素センサの検出値に基づく空燃比を目標空燃比に近づけるための学習制御を行って前記燃料噴射弁からの燃料噴射量を制御する制御手段と、を備え、
前記制御手段は、内燃機関の状態に応じて前記キャニスタからのガス総放出量推定値を算出するガス放出量算出手段と、前記酸素センサの検出値に基づいて目標空燃比に近づくようにフィードバック補正値を算出してフィードバック制御を行うフィードバック補正算出手段と、前記フィードバック補正値の平均値とその中央値との差を空燃比学習補正値として算出する空燃比学習補正算出手段と、前記空燃比学習補正値を用いて最終噴射時間を算出する最終噴射時間算出手段と、を備え、
前記ガス総放出量推定値が所定の閾値以上に達した場合に、前記空燃比学習補正算出手段により前記空燃比学習補正値を算出し、且つ、前記閾値は、スロットル開度の任意の範囲毎に異なるように設定され、
前記ガス放出量算出手段は、前記内燃機関のエンジン回転数及びスロットル開度に応じて予め設定された前記キャニスタのガス瞬時放出マップを基に前記ガス総放出量推定値を算出することを特徴とする内燃機関の空燃比学習制御装置。
Priority Applications (3)
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JP2014244915A JP6497048B2 (ja) | 2014-12-03 | 2014-12-03 | 内燃機関の空燃比学習制御装置 |
DE102015015637.3A DE102015015637B4 (de) | 2014-12-03 | 2015-12-02 | Luft-brennstoff-verhältnis-lernsteuerungsvorrichtung für verbrennungsmaschine |
CN201510883710.8A CN105673232B (zh) | 2014-12-03 | 2015-12-03 | 内燃机的空燃比学习控制装置 |
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JP2014244915A JP6497048B2 (ja) | 2014-12-03 | 2014-12-03 | 内燃機関の空燃比学習制御装置 |
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JP2016108978A JP2016108978A (ja) | 2016-06-20 |
JP6497048B2 true JP6497048B2 (ja) | 2019-04-10 |
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JP (1) | JP6497048B2 (ja) |
CN (1) | CN105673232B (ja) |
DE (1) | DE102015015637B4 (ja) |
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JP2018188975A (ja) * | 2017-04-28 | 2018-11-29 | トヨタ自動車株式会社 | 内燃機関の制御装置 |
CN107120200B (zh) * | 2017-06-26 | 2023-06-20 | 山东大学 | 燃气压力-尾气氧含量双闭环进气控制系统及控制方法 |
JP6863247B2 (ja) | 2017-11-22 | 2021-04-21 | トヨタ自動車株式会社 | 内燃機関の制御装置及び内燃機関における学習値の学習方法 |
JP6942665B2 (ja) * | 2018-03-28 | 2021-09-29 | 愛三工業株式会社 | 蒸発燃料処理装置 |
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US5299546A (en) * | 1992-04-28 | 1994-04-05 | Nippondenso, Co., Ltd. | Air-fuel ratio control apparatus of internal combustion engine |
JP3417401B2 (ja) * | 1992-04-28 | 2003-06-16 | 株式会社デンソー | 内燃機関の空燃比制御装置 |
US5529047A (en) * | 1994-02-21 | 1996-06-25 | Nippondenso Co., Ltd. | Air-fuel ratio system for an internal combustion engine |
JP3404872B2 (ja) | 1994-03-18 | 2003-05-12 | 株式会社デンソー | 内燃機関の空燃比制御装置 |
JP3467881B2 (ja) * | 1994-12-26 | 2003-11-17 | 日産自動車株式会社 | 内燃機関の空燃比制御装置 |
JPH09100732A (ja) * | 1995-10-06 | 1997-04-15 | Nissan Motor Co Ltd | 内燃機関の空燃比制御装置 |
JP2000257487A (ja) * | 1999-03-08 | 2000-09-19 | Toyota Motor Corp | 内燃機関の蒸発燃料処理装置 |
JP2002081350A (ja) * | 2000-09-07 | 2002-03-22 | Suzuki Motor Corp | 内燃機関の空燃比制御装置 |
US6651631B2 (en) * | 2001-03-14 | 2003-11-25 | Nissan Motor Co., Ltd. | Fuel vapor emission control device for an engine |
JP4656092B2 (ja) * | 2007-06-11 | 2011-03-23 | トヨタ自動車株式会社 | 内燃機関の制御装置 |
JP2010024991A (ja) * | 2008-07-18 | 2010-02-04 | Hitachi Ltd | 内燃機関の制御装置 |
JP5513053B2 (ja) | 2009-09-30 | 2014-06-04 | 本田技研工業株式会社 | 自動二輪車用エンジンの空燃比学習制御装置 |
EP2685071B1 (en) * | 2011-03-10 | 2017-10-25 | Toyota Jidosha Kabushiki Kaisha | Internal combustion engine control apparatus |
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- 2014-12-03 JP JP2014244915A patent/JP6497048B2/ja active Active
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- 2015-12-02 DE DE102015015637.3A patent/DE102015015637B4/de active Active
- 2015-12-03 CN CN201510883710.8A patent/CN105673232B/zh active Active
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Publication number | Publication date |
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DE102015015637B4 (de) | 2020-08-13 |
DE102015015637A1 (de) | 2016-06-09 |
CN105673232A (zh) | 2016-06-15 |
JP2016108978A (ja) | 2016-06-20 |
CN105673232B (zh) | 2019-10-11 |
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