JP5602665B2 - 空燃比推測検知装置 - Google Patents
空燃比推測検知装置 Download PDFInfo
- Publication number
- JP5602665B2 JP5602665B2 JP2011057872A JP2011057872A JP5602665B2 JP 5602665 B2 JP5602665 B2 JP 5602665B2 JP 2011057872 A JP2011057872 A JP 2011057872A JP 2011057872 A JP2011057872 A JP 2011057872A JP 5602665 B2 JP5602665 B2 JP 5602665B2
- Authority
- JP
- Japan
- Prior art keywords
- air
- fuel ratio
- oxygen concentration
- fuel injection
- amount
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
- F02D41/1458—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 with determination means using an estimation
-
- 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
- F02D41/0097—Electrical control of supply of combustible mixture or its constituents using means for generating speed signals
-
- 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
- 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
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/04—Engine intake system parameters
- F02D2200/0411—Volumetric efficiency
-
- 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
- F02D2200/06—Fuel or fuel supply system parameters
- F02D2200/0614—Actual fuel mass or fuel injection amount
-
- 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
- F02D41/18—Circuit arrangements for generating control signals by measuring intake air flow
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
Claims (3)
- エンジンのシリンダに導入される吸入空気量を推測する吸入空気量推測手段(14)と、
燃料噴射弁(6)の駆動時間(Tout)に基づいてサイクル毎の燃料噴射量(Gf)を推測する燃料噴射量推測手段(12)と、
燃焼ガスの残留酸素濃度に応じた検出出力を生じ、理論空燃比に対応する残留酸素濃度に対応して検出出力がステップ状に変化する出力遷移域(R)を有する酸素濃度検出素子(3)と、
前記酸素濃度検出素子(3)の出力値が前記出力遷移域(R)にあるときに前記吸入空気量推測手段(14)で推測された吸入空気量および前記燃料噴射量推定手段(12)で推定された燃料噴射量(Gf)を使用して空燃比と理論空燃比との比例定数(K)を決定する比例定数決定手段(17)とを備え、
前記酸素濃度検出素子(3)の出力値が出力遷移域(R)以外にあるときには、前記比例定数決定手段(17)で決定された比例定数(K)と前記吸入空気量および前記燃料噴射量(Gf)から空燃比(A/F)を推測するように構成されていることを特徴とする空燃比推測検知装置。 - エンジンのクランク軸(9)の所定回転角度毎にクランクパルスを発生させるパルス発生手段(2)と、
前記エンジンの圧縮上死点または該該圧縮上死点を跨ぐ二つの連続するクランクパルスの間隔(τ1)に基づいて第1のクランク角速度(ω1)を算出するとともに、圧縮行程における任意の連続する2つのクランクパルスの間隔(τ2)に基づいて第2のクランク角速度(ω2)を算出するクランク角速度算出手段(23)と、
前記クランク角速度算出手段(23)で算出された第2のクランク角速度(ω2)と第1のクランク角速度(ω1)との差(Δω1)によって吸入空気量の関数である充填効率(CE)を算出する充填効率算出手段(14)と、
燃料噴射弁(6)の駆動時間(Tout)に基づいてサイクル毎の燃料噴射量(Gf)を推測する燃料噴射量推測手段(12)と、
燃焼ガスの残留酸素濃度に応じた検出出力を生じ、理論空燃比に対応する残留酸素濃度に対応して検出出力がステップ状に変化する出力遷移域(R)を有する酸素濃度検出素子(3)と、
前記酸素濃度検出素子(3)の出力値が前記出力遷移域(R)にあるときに前記充填効率算出手段(14)で推測された吸入空気量および前記燃料噴射量推定手段(12)で推定された燃料噴射量(Gf)を使用して空燃比と理論空燃比との比例定数(K)を決定する比例定数決定手段(17)とを備え、
前記酸素濃度検出素子(3)の出力値が出力遷移域(R)以外にあるときには、前記比例定数決定手段(17)で決定された比例定数(K)と前記充填効率(CE)および前記燃料噴射量(Gf)から空燃比(A/F)を推測するように構成されていることを特徴とする空燃比推測検知装置。 - エンジンの吸入空気量を検知するエアフローセンサを備え、
前記推定吸入空気量推測手段(14)で推測される吸入空気量に代えて、前記エアフローセンサで検知された吸入空気量を前記比例定数決定手段(17)での演算に使用するように構成されていることを特徴とする請求項1記載の空燃比推測検知装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011057872A JP5602665B2 (ja) | 2011-03-16 | 2011-03-16 | 空燃比推測検知装置 |
DE102012200472.6A DE102012200472B4 (de) | 2011-03-16 | 2012-01-13 | Luft-Kraftstoff-Verhältnis-Schätz-/Detektiervorrichtung |
IT000129A ITTO20120129A1 (it) | 2011-03-16 | 2012-02-15 | Dispositivo di stima / rilevamento del rapporto aria-carburante. |
US13/411,805 US8495910B2 (en) | 2011-03-16 | 2012-03-05 | Air-fuel ratio estimating/detecting device |
CN201210061253.0A CN102678364B (zh) | 2011-03-16 | 2012-03-09 | 空燃比推断检测装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011057872A JP5602665B2 (ja) | 2011-03-16 | 2011-03-16 | 空燃比推測検知装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012193654A JP2012193654A (ja) | 2012-10-11 |
JP5602665B2 true JP5602665B2 (ja) | 2014-10-08 |
Family
ID=46757051
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011057872A Expired - Fee Related JP5602665B2 (ja) | 2011-03-16 | 2011-03-16 | 空燃比推測検知装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8495910B2 (ja) |
JP (1) | JP5602665B2 (ja) |
CN (1) | CN102678364B (ja) |
DE (1) | DE102012200472B4 (ja) |
IT (1) | ITTO20120129A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5525839B2 (ja) * | 2010-02-01 | 2014-06-18 | 本田技研工業株式会社 | アルコール濃度推測検知装置 |
DE102013017799A1 (de) * | 2013-10-25 | 2015-04-30 | GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) | Bestimmung des effektiven Kraftstoff-Luftverhältnisses einer aufgeladenen Verbrennungskraftmaschine mit Spülluftanteil |
JP6237709B2 (ja) * | 2015-06-15 | 2017-11-29 | トヨタ自動車株式会社 | 内燃機関の制御装置 |
JP6058106B1 (ja) * | 2015-11-27 | 2017-01-11 | 三菱電機株式会社 | エンジン制御装置 |
JP6716101B2 (ja) * | 2017-05-17 | 2020-07-01 | マツダ株式会社 | ディーゼルエンジンの燃料噴射制御方法及び燃料噴射制御装置 |
JP2018193916A (ja) * | 2017-05-17 | 2018-12-06 | マツダ株式会社 | ディーゼルエンジンの燃料噴射制御方法及び燃料噴射制御装置 |
CN110942810A (zh) * | 2019-10-25 | 2020-03-31 | 东北大学 | 一种基于热理论的气体燃料可燃极限预测方法 |
JP7261189B2 (ja) * | 2020-01-31 | 2023-04-19 | 日立Astemo株式会社 | 内燃機関制御装置及び内燃機関制御方法 |
CN114320638B (zh) * | 2021-12-27 | 2022-11-08 | 联合汽车电子有限公司 | 一种空燃比确定方法、装置、存储介质和设备 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57105530A (en) * | 1980-12-23 | 1982-07-01 | Toyota Motor Corp | Air-fuel ratio controlling method for internal combustion engine |
US5704339A (en) * | 1996-04-26 | 1998-01-06 | Ford Global Technologies, Inc. | method and apparatus for improving vehicle fuel economy |
US5692478A (en) * | 1996-05-07 | 1997-12-02 | Hitachi America, Ltd., Research And Development Division | Fuel control system for a gaseous fuel internal combustion engine with improved fuel metering and mixing means |
JP2000227041A (ja) * | 1999-02-04 | 2000-08-15 | Mazda Motor Corp | 筒内噴射式エンジンの制御装置 |
JP2000227044A (ja) * | 1999-02-04 | 2000-08-15 | Mazda Motor Corp | 筒内噴射式エンジンの制御装置 |
JP2001027061A (ja) | 1999-07-13 | 2001-01-30 | Takigen Mfg Co Ltd | 施錠状態検出型ソレノイドロック装置 |
US7273046B2 (en) * | 2004-07-09 | 2007-09-25 | Denso Corporation | Air-fuel ratio controller for internal combustion engine and diagnosis apparatus for intake sensors |
JP4332102B2 (ja) * | 2004-11-30 | 2009-09-16 | 本田技研工業株式会社 | エンジンの空燃比制御装置 |
JP2008045424A (ja) * | 2006-08-11 | 2008-02-28 | Mazda Motor Corp | エンジンの空燃比制御装置 |
US7681442B2 (en) * | 2007-06-22 | 2010-03-23 | Denso Corporation | Throttle upstream pressure estimating apparatus and cylinder charged air quantity calculating apparatus for internal combustion engine |
JP4877610B2 (ja) * | 2008-04-17 | 2012-02-15 | トヨタ自動車株式会社 | 多気筒内燃機関の気筒間空燃比ばらつき異常検出装置 |
JP5158977B2 (ja) * | 2009-07-28 | 2013-03-06 | 本田技研工業株式会社 | 空燃比推測検知装置 |
JP5446759B2 (ja) * | 2009-11-13 | 2014-03-19 | マツダ株式会社 | エンジンの異常検出方法及び異常検出装置 |
JP5140138B2 (ja) * | 2010-11-04 | 2013-02-06 | 本田技研工業株式会社 | 制御装置 |
JP2013007375A (ja) * | 2011-05-24 | 2013-01-10 | Nissan Motor Co Ltd | 内燃機関の燃料噴射制御装置 |
-
2011
- 2011-03-16 JP JP2011057872A patent/JP5602665B2/ja not_active Expired - Fee Related
-
2012
- 2012-01-13 DE DE102012200472.6A patent/DE102012200472B4/de not_active Expired - Fee Related
- 2012-02-15 IT IT000129A patent/ITTO20120129A1/it unknown
- 2012-03-05 US US13/411,805 patent/US8495910B2/en not_active Expired - Fee Related
- 2012-03-09 CN CN201210061253.0A patent/CN102678364B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE102012200472B4 (de) | 2017-10-26 |
DE102012200472A1 (de) | 2012-09-20 |
JP2012193654A (ja) | 2012-10-11 |
US8495910B2 (en) | 2013-07-30 |
CN102678364A (zh) | 2012-09-19 |
CN102678364B (zh) | 2014-12-17 |
US20120234085A1 (en) | 2012-09-20 |
ITTO20120129A1 (it) | 2012-09-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5602665B2 (ja) | 空燃比推測検知装置 | |
JP4527792B2 (ja) | 排ガス浄化装置の劣化判定装置 | |
JP5525839B2 (ja) | アルコール濃度推測検知装置 | |
JP5328757B2 (ja) | エンジン制御装置 | |
JP5158977B2 (ja) | 空燃比推測検知装置 | |
JPH0827203B2 (ja) | エンジンの吸入空気量検出装置 | |
JP2009150295A (ja) | 4サイクルエンジンの行程判別装置 | |
JP2010169079A (ja) | エンジン負荷検知装置およびエンジン負荷検知方法 | |
JP5112382B2 (ja) | 内燃機関の酸素センサ診断装置 | |
JP2012193655A (ja) | エンジンの点火時期設定装置 | |
JP4251039B2 (ja) | 内燃機関の燃焼状態推定装置 | |
JP2009203976A (ja) | 内燃機関の運転制御装置 | |
JP4875554B2 (ja) | 単気筒内燃機関の運転制御装置 | |
JP4280931B2 (ja) | 内燃機関の空燃比制御装置 | |
JP2009013792A5 (ja) | ||
JP5385236B2 (ja) | エンジン制御装置 | |
JP5273060B2 (ja) | 内燃機関の空燃比ばらつき検出装置 | |
JP5337065B2 (ja) | Egr率推測検知装置 | |
JP4211487B2 (ja) | 内燃機関の制御装置 | |
JP4927697B2 (ja) | 内燃機関の燃料性状推定装置 | |
JP2004092603A (ja) | 内燃機関の燃焼状態推定装置 | |
JP4297278B2 (ja) | 回転体の位置補正制御装置 | |
JP2005207366A (ja) | 内燃機関の制御装置 | |
JP2006152908A (ja) | 燃料噴射制御装置 | |
US20090084370A1 (en) | Apparatus for Calculating Combustion Energy of Internal Combustion Engine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20131127 |
|
TRDD | Decision of grant or rejection written | ||
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20140724 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20140730 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20140820 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5602665 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |