JP2015224611A - 内燃機関の空気量算出装置 - Google Patents
内燃機関の空気量算出装置 Download PDFInfo
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 44
- 238000004364 calculation method Methods 0.000 title claims abstract description 35
- 238000001514 detection method Methods 0.000 claims abstract description 21
- 230000006399 behavior Effects 0.000 claims abstract description 5
- 239000000446 fuel Substances 0.000 claims description 21
- 238000010926 purge Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 13
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 239000003054 catalyst Substances 0.000 description 5
- 230000009849 deactivation Effects 0.000 description 5
- 230000006866 deterioration Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012821 model calculation Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
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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
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10373—Sensors for intake systems
- F02M35/10386—Sensors for intake systems for flow rate
-
- 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
-
- 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
- F02D41/0047—Controlling exhaust gas recirculation [EGR]
-
- 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
-
- 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
- F02D41/2464—Characteristics of actuators
-
- 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
- F02D41/2474—Characteristics of sensors
-
- 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
- F02D41/2477—Methods of calibrating or learning characterised by the method used for learning
- F02D41/248—Methods of calibrating or learning characterised by the method used for learning using a plurality of learned values
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10373—Sensors for intake systems
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10373—Sensors for intake systems
- F02M35/1038—Sensors for intake systems for temperature or pressure
-
- 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
- F02D41/0002—Controlling intake air
- F02D2041/001—Controlling intake air for engines with variable valve actuation
-
- 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
- F02D2200/0402—Engine intake system parameters the parameter being determined by using a model of the engine intake or its components
-
- 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
- F02D2200/0406—Intake manifold pressure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Description
・エンジン回転速度の変動量(所定時間内の変動量)が所定値以下であること、
・吸気管圧力の変動量(所定時間内の変動量)が所定値以下であること、
が含まれ、これらがすべて成立する場合に、学習実施条件が成立していると判定される。
上記実施形態を例えば次のように変更してもよい。
Claims (5)
- 吸気管(11)を流れる空気を燃料と共に燃焼させる燃焼室(22)と、該燃焼室に通じる吸気ポートに設けられ、開放されることで前記燃焼室内に空気を流入させる吸気弁(31)とを備える内燃機関(10)に適用され、
前記吸気弁を通じて前記燃焼室内に空気が流入する挙動を模擬した吸気弁モデルを用い、前記吸気管内の圧力である吸気管圧力(Pm)に基づいて、前記燃焼室内に流入する空気量である筒内流入空気量(Gn)を算出する内燃機関の空気量算出装置であって、
前記吸気管に設けた空気量検出センサ(12)の検出結果に基づいて、当該吸気管内を流れる吸入空気量(Ga)を算出する吸入空気量算出手段と、
前記吸入空気量算出手段により算出した吸入空気量が、前記燃焼室内に実際に流入する流入空気量に一致する状況下にあるか否かを判定する判定手段と、
前記吸入空気量が前記実際の流入空気量に一致する状況下であると判定された場合に、前記吸気弁モデルを用いて算出した筒内流入空気量と、前記吸入空気量算出手段により算出した吸入空気量との比較に基づいて、前記筒内流入空気量と前記吸気弁モデルの特性値との少なくともいずれかを補正するための学習値を算出する学習手段と、
を備えることを特徴とする内燃機関の空気量算出装置。 - 前記判定手段は、キャニスタ(25)に吸着した蒸発燃料を吸気通路に放出するパージ処理が実施されていないこと、及びEGR手段(46等)により吸気通路へのEGRガスの導入が行われていないことの少なくともいずれかに基づいて、前記吸入空気量が前記実際の流入空気量に一致する状況下であるか否かを判定する請求項1に記載の内燃機関の空気量算出装置。
- 前記学習手段は、吸気管圧力と機関回転速度とをパラメータとする複数の学習領域においてそれぞれ前記学習値を算出するものであり、
前記複数の学習領域として定められる吸気管圧力の点数n1と機関回転速度の点数n2は、n1<n2である請求項1又は2に記載の内燃機関の空気量算出装置。 - 前記学習手段は、前記複数の学習領域における各吸気管圧力での学習値の算出が完了した後、同一の機関回転速度における各吸気管圧力での学習値から、中央値となる最終学習値を算出する請求項3に記載の内燃機関の空気量算出装置。
- 前記複数の学習領域は、前記吸気弁の開閉時期をパラメータとして含めて定められるものであり、
前記複数の学習領域として定められる前記開閉時期の点数n3は、前記吸気管圧力の点数n1よりも多くなっている請求項3又は4に記載の内燃機関の空気量算出装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2014111309A JP6311454B2 (ja) | 2014-05-29 | 2014-05-29 | 内燃機関の空気量算出装置 |
US15/312,064 US10280881B2 (en) | 2014-05-29 | 2015-05-25 | Air quantity calculation device for internal combustion engine |
PCT/JP2015/002618 WO2015182107A1 (ja) | 2014-05-29 | 2015-05-25 | 内燃機関の空気量算出装置 |
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JP2014111309A JP6311454B2 (ja) | 2014-05-29 | 2014-05-29 | 内燃機関の空気量算出装置 |
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JP2015224611A true JP2015224611A (ja) | 2015-12-14 |
JP6311454B2 JP6311454B2 (ja) | 2018-04-18 |
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US (1) | US10280881B2 (ja) |
JP (1) | JP6311454B2 (ja) |
WO (1) | WO2015182107A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020063723A (ja) * | 2018-10-19 | 2020-04-23 | トヨタ自動車株式会社 | エンジン制御装置 |
KR102187578B1 (ko) * | 2019-10-23 | 2020-12-07 | 현대자동차주식회사 | 실린더 공기량 연산 방법 |
US10947922B2 (en) | 2018-07-13 | 2021-03-16 | Toyota Jidosha Kabushiki Kaisha | Engine controller and engine control method |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP6350431B2 (ja) * | 2015-07-28 | 2018-07-04 | トヨタ自動車株式会社 | 内燃機関の制御装置 |
US20170082055A1 (en) * | 2015-09-17 | 2017-03-23 | GM Global Technology Operations LLC | System and Method for Estimating an Engine Operating Parameter Using a Physics-Based Model and Adjusting the Estimated Engine Operating Parameter Using an Experimental Model |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2005337186A (ja) * | 2004-05-31 | 2005-12-08 | Denso Corp | 内燃機関の制御装置 |
JP2009103114A (ja) * | 2007-10-26 | 2009-05-14 | Toyota Motor Corp | 内燃機関の異常検出装置 |
JP2012026318A (ja) * | 2010-07-21 | 2012-02-09 | Nippon Soken Inc | 内燃機関の制御装置 |
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JP4029739B2 (ja) | 2003-02-05 | 2008-01-09 | トヨタ自動車株式会社 | 内燃機関における充填空気量演算 |
BRPI1014859B1 (pt) * | 2009-04-02 | 2021-02-02 | Toyota Jidosha Kabushiki Kaisha | sistema de controle de um motor de combustão interna |
US20130008542A1 (en) * | 2011-07-05 | 2013-01-10 | Irwin Kevin M | Diaphragm valve and methods and accessories therefor |
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2014
- 2014-05-29 JP JP2014111309A patent/JP6311454B2/ja active Active
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- 2015-05-25 US US15/312,064 patent/US10280881B2/en active Active
- 2015-05-25 WO PCT/JP2015/002618 patent/WO2015182107A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005337186A (ja) * | 2004-05-31 | 2005-12-08 | Denso Corp | 内燃機関の制御装置 |
JP2009103114A (ja) * | 2007-10-26 | 2009-05-14 | Toyota Motor Corp | 内燃機関の異常検出装置 |
JP2012026318A (ja) * | 2010-07-21 | 2012-02-09 | Nippon Soken Inc | 内燃機関の制御装置 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10947922B2 (en) | 2018-07-13 | 2021-03-16 | Toyota Jidosha Kabushiki Kaisha | Engine controller and engine control method |
JP2020063723A (ja) * | 2018-10-19 | 2020-04-23 | トヨタ自動車株式会社 | エンジン制御装置 |
JP7271901B2 (ja) | 2018-10-19 | 2023-05-12 | トヨタ自動車株式会社 | エンジン制御装置 |
KR102187578B1 (ko) * | 2019-10-23 | 2020-12-07 | 현대자동차주식회사 | 실린더 공기량 연산 방법 |
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Publication number | Publication date |
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US10280881B2 (en) | 2019-05-07 |
WO2015182107A1 (ja) | 2015-12-03 |
US20170082075A1 (en) | 2017-03-23 |
JP6311454B2 (ja) | 2018-04-18 |
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