JP2015031170A - 排気系の状態検出装置 - Google Patents
排気系の状態検出装置 Download PDFInfo
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- JP2015031170A JP2015031170A JP2013159191A JP2013159191A JP2015031170A JP 2015031170 A JP2015031170 A JP 2015031170A JP 2013159191 A JP2013159191 A JP 2013159191A JP 2013159191 A JP2013159191 A JP 2013159191A JP 2015031170 A JP2015031170 A JP 2015031170A
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- Prior art keywords
- exhaust
- engine
- intake
- oxygen concentration
- thermal efficiency
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- 238000001514 detection method Methods 0.000 title claims abstract description 30
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000001301 oxygen Substances 0.000 claims abstract description 35
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 35
- 238000002347 injection Methods 0.000 claims abstract description 34
- 239000007924 injection Substances 0.000 claims abstract description 34
- 239000000446 fuel Substances 0.000 claims abstract description 25
- 239000007789 gas Substances 0.000 claims abstract description 19
- 238000001816 cooling Methods 0.000 claims description 17
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 239000000243 solution Substances 0.000 abstract 1
- 238000003745 diagnosis Methods 0.000 description 6
- 238000011144 upstream manufacturing Methods 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/45—Sensors specially adapted for EGR systems
- F02M26/46—Sensors specially adapted for EGR systems for determining the characteristics of gases, e.g. composition
- F02M26/47—Sensors specially adapted for EGR systems for determining the characteristics of gases, e.g. composition the characteristics being temperatures, pressures or flow rates
-
- 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
- F02D41/1439—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the position of the sensor
- F02D41/144—Sensor in intake manifold
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D21/00—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas
- F02D21/06—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air
- F02D21/08—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air the other gas being the exhaust gas of engine
-
- 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
- F02D41/1446—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 exhaust temperatures
- F02D41/1447—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 exhaust temperatures 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
- F02D41/02—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
- F02D41/1456—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 sensor output signal being linear or quasi-linear with the concentration of oxygen
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/33—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage controlling the temperature of the recirculated gases
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/45—Sensors specially adapted for EGR systems
- F02M26/46—Sensors specially adapted for EGR systems for determining the characteristics of gases, e.g. composition
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/49—Detecting, diagnosing or indicating an abnormal function of the EGR system
-
- 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
- F02D2041/1433—Introducing closed-loop corrections characterised by the control or regulation method using a model or simulation of the system
-
- 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
- F02D2200/0618—Actual fuel injection timing or delay, e.g. determined from fuel pressure drop
Landscapes
- 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)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
Description
20 EGR装置
22 EGRクーラ(環流排気冷却手段)
30 エンジン回転センサ(運転状態検出手段)
31 アクセル開度センサ(運転状態検出手段)
34 吸気酸素濃度センサ(酸素濃度検出手段)
35 ブースト圧センサ
36 EGRクーラ出口温度センサ(排気温度検出手段)
40 ECU
42 図示熱効率演算部(図示熱効率変化量演算手段)
43 排気温度演算部(排気温度演算手段)
44 EGRクーラ診断部(診断手段)
Claims (4)
- エンジンの吸気酸素濃度を検出する酸素濃度検出手段と、
前記エンジンの運転状態を検出する運転状態検出手段と、
検出される前記吸気酸素濃度、検出される前記運転状態に応じて設定される燃料の噴射開始時期及び、予め記憶した少なくとも吸気酸素濃度と噴射開始時期と図示熱効率変化量との関係を規定する第1モデル式に基づいて、前記エンジンの図示熱効率変化量を演算する図示熱効率変化量演算手段と、
演算される前記図示熱効率変化量及び、予め記憶した少なくとも排気温度と図示熱効率変化量との関係を規定した第2モデル式に基づいて、前記エンジンの排気温度を演算する排気温度演算手段と、を備える
ことを特徴とする排気系の状態検出装置。 - 前記エンジンの吸気系と排気系とを接続する環流排気流路に設けられて環流排気を冷却する環流排気冷却手段と、
前記環流排気冷却手段よりも排気下流側の環流排気流路に設けられた排気温度検出手段と、
前記排気温度演算手段で演算される排気温度と、前記排気温度検出手段で検出される排気温度とに基づいて、前記環流排気冷却手段の冷却効率を診断する診断手段と、をさらに備える
請求項1に記載の排気系の状態検出装置。 - 前記第1モデル式は、前記運転状態に応じて設定される基準吸気酸素濃度と、前記運転状態に応じて設定される吸気酸素濃度補正係数と、前記運転状態に応じて設定される基準噴射開始時期と、前記運転状態に応じて設定される噴射開始時期補正係数と、を含む
請求項1又は2に記載の排気系の状態検出装置。 - 前記第2モデル式は、前記運転状態に応じて設定される基準排気エネルギと、前記運転状態に応じて設定される基準吸気エネルギと、少なくとも吸入空気量及び吸気温度から演算される吸気エネルギと、前記運転状態に応じて設定される燃料噴射量から演算される燃焼エネルギとを含む
請求項1から3の何れか一項に記載の排気系の状態検出装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013159191A JP6125942B2 (ja) | 2013-07-31 | 2013-07-31 | 排気系の状態検出装置 |
US14/908,291 US20160169168A1 (en) | 2013-07-31 | 2014-07-31 | Exhaust system state detection device |
CN201480042373.3A CN105408608B (zh) | 2013-07-31 | 2014-07-31 | 排气系统的状态检测装置 |
EP14832681.2A EP3029304A4 (en) | 2013-07-31 | 2014-07-31 | Exhaust system state detection device |
PCT/JP2014/070198 WO2015016305A1 (ja) | 2013-07-31 | 2014-07-31 | 排気系の状態検出装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013159191A JP6125942B2 (ja) | 2013-07-31 | 2013-07-31 | 排気系の状態検出装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2015031170A true JP2015031170A (ja) | 2015-02-16 |
JP6125942B2 JP6125942B2 (ja) | 2017-05-10 |
Family
ID=52431832
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013159191A Expired - Fee Related JP6125942B2 (ja) | 2013-07-31 | 2013-07-31 | 排気系の状態検出装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20160169168A1 (ja) |
EP (1) | EP3029304A4 (ja) |
JP (1) | JP6125942B2 (ja) |
CN (1) | CN105408608B (ja) |
WO (1) | WO2015016305A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6381728B1 (ja) * | 2017-04-19 | 2018-08-29 | 三菱電機株式会社 | 内燃機関の制御装置 |
JP2019007437A (ja) * | 2017-06-27 | 2019-01-17 | 三菱電機株式会社 | 内燃機関の制御装置及び制御方法 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014185546A (ja) * | 2013-03-22 | 2014-10-02 | Toyota Motor Corp | 車両の制御装置および制御方法 |
JP6146192B2 (ja) * | 2013-07-31 | 2017-06-14 | いすゞ自動車株式会社 | 診断装置 |
IT201800009912A1 (it) | 2018-10-30 | 2019-01-30 | Universita' Degli Studi Di Modena E Reggio Emilia | Apparato di misure calorimetriche e procedimento di rilevazione della composizione di un gas, del contenuto di catrami di un gas e dell’efficienza di gassificazione di un impianto di trasformazione in gas. |
JP7435284B2 (ja) * | 2020-06-15 | 2024-02-21 | トヨタ自動車株式会社 | エンジン装置 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH03503196A (ja) * | 1988-02-10 | 1991-07-18 | ザ ブロークン ヒル プロプライエタリィ カンパニー リミテッド | 燃料の酸素富化 |
JPH11241820A (ja) * | 1998-02-25 | 1999-09-07 | Gastar Corp | ガス燃焼装置 |
JP2003065169A (ja) * | 2001-08-24 | 2003-03-05 | Toyota Motor Corp | ディーゼルエンジンの燃焼制御 |
JP2003286820A (ja) * | 2002-03-27 | 2003-10-10 | Nissan Diesel Motor Co Ltd | エンジンの排気浄化装置 |
JP2006266182A (ja) * | 2005-03-24 | 2006-10-05 | Shin Ace:Kk | ディーゼルエンジンの作動方法 |
JP2011007131A (ja) * | 2009-06-26 | 2011-01-13 | Denso Corp | 排気還流制御装置 |
JP2013087673A (ja) * | 2011-10-17 | 2013-05-13 | Mitsubishi Motors Corp | エンジンの制御装置 |
Family Cites Families (13)
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US6848434B2 (en) * | 2003-03-17 | 2005-02-01 | Cummins, Inc. | System for diagnosing operation of an EGR cooler |
CN1869423A (zh) * | 2005-05-25 | 2006-11-29 | 海尔集团公司 | 发动机驱动式空调装置及控制方法 |
FR2908825B1 (fr) * | 2006-11-17 | 2009-01-30 | Renault Sas | Estimation d'une temperature de gaz d'echappement en sortie d'un circuit egr d'un moteur a combustion |
US7810476B2 (en) * | 2007-03-06 | 2010-10-12 | Gm Global Technology Operations, Inc. | Method and apparatus for estimating exhaust temperature of an internal combustion engine |
JP4967995B2 (ja) | 2007-11-02 | 2012-07-04 | 日産自動車株式会社 | 内燃機関の排気還流制御装置 |
DE102008001418A1 (de) * | 2008-04-28 | 2009-10-29 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Adaption des Wirkungsgrads eines Kühlers im Rückführungskreis von Abgas in einem Verbrennungsmotor |
JP5267569B2 (ja) * | 2009-10-22 | 2013-08-21 | トヨタ自動車株式会社 | 排気温度測定装置および排気温度測定方法 |
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2013
- 2013-07-31 JP JP2013159191A patent/JP6125942B2/ja not_active Expired - Fee Related
-
2014
- 2014-07-31 US US14/908,291 patent/US20160169168A1/en not_active Abandoned
- 2014-07-31 WO PCT/JP2014/070198 patent/WO2015016305A1/ja active Application Filing
- 2014-07-31 CN CN201480042373.3A patent/CN105408608B/zh not_active Expired - Fee Related
- 2014-07-31 EP EP14832681.2A patent/EP3029304A4/en not_active Withdrawn
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JPH03503196A (ja) * | 1988-02-10 | 1991-07-18 | ザ ブロークン ヒル プロプライエタリィ カンパニー リミテッド | 燃料の酸素富化 |
JPH11241820A (ja) * | 1998-02-25 | 1999-09-07 | Gastar Corp | ガス燃焼装置 |
JP2003065169A (ja) * | 2001-08-24 | 2003-03-05 | Toyota Motor Corp | ディーゼルエンジンの燃焼制御 |
JP2003286820A (ja) * | 2002-03-27 | 2003-10-10 | Nissan Diesel Motor Co Ltd | エンジンの排気浄化装置 |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6381728B1 (ja) * | 2017-04-19 | 2018-08-29 | 三菱電機株式会社 | 内燃機関の制御装置 |
JP2018178928A (ja) * | 2017-04-19 | 2018-11-15 | 三菱電機株式会社 | 内燃機関の制御装置 |
US10539081B2 (en) | 2017-04-19 | 2020-01-21 | Mitsubishi Electric Corporation | Internal-combustion engine control apparatus for controlling waste gate valve opening degree |
JP2019007437A (ja) * | 2017-06-27 | 2019-01-17 | 三菱電機株式会社 | 内燃機関の制御装置及び制御方法 |
US10590871B2 (en) | 2017-06-27 | 2020-03-17 | Mitsubishi Electric Corporation | Controller and control method for internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
WO2015016305A1 (ja) | 2015-02-05 |
JP6125942B2 (ja) | 2017-05-10 |
CN105408608B (zh) | 2019-03-19 |
EP3029304A1 (en) | 2016-06-08 |
CN105408608A (zh) | 2016-03-16 |
EP3029304A4 (en) | 2017-04-12 |
US20160169168A1 (en) | 2016-06-16 |
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