JP5207970B2 - エンジン排気温度を推定するための方法及び排気温度推定値を用いてシリンダ圧力センサを点検診断するための方法 - Google Patents
エンジン排気温度を推定するための方法及び排気温度推定値を用いてシリンダ圧力センサを点検診断するための方法 Download PDFInfo
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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
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/023—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the cylinder pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
- F01N11/002—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring or estimating temperature or pressure in, or downstream of the exhaust apparatus
- F01N11/005—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring or estimating temperature or pressure in, or downstream of the exhaust apparatus the temperature or pressure being estimated, e.g. by means of a theoretical model
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
- F02B77/083—Safety, indicating, or supervising devices relating to maintenance, e.g. diagnostic device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
- F02B77/085—Safety, indicating, or supervising devices with sensors measuring combustion processes, e.g. knocking, pressure, ionization, combustion flame
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
- F02B77/085—Safety, indicating, or supervising devices with sensors measuring combustion processes, e.g. knocking, pressure, ionization, combustion flame
- F02B77/086—Sensor arrangements in the exhaust, e.g. for temperature, misfire, air/fuel ratio, oxygen sensors
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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
- F02D41/02—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
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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
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/025—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining temperatures inside the cylinder, e.g. combustion temperatures
- F02D35/026—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining temperatures inside the cylinder, e.g. combustion temperatures using an estimation
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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
- F02D41/0047—Controlling exhaust gas recirculation [EGR]
- F02D41/0065—Specific aspects of external EGR control
- F02D41/0072—Estimating, calculating or determining the EGR rate, amount or 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
- F02D41/02—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
-
- 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
- F02D41/187—Circuit arrangements for generating control signals by measuring intake air flow using a hot wire flow sensor
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- 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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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Combined Controls Of Internal Combustion Engines (AREA)
- Measuring Fluid Pressure (AREA)
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Description
・排気弁の開口時点に先立つ時点においてクランク軸の回転角及び燃焼室内部のシリンダ圧力を測定し、そして上記回転角に基づき上記燃焼室の容積を定めるステップS1と、
・上記排気弁の上記開口時点における上記燃焼室内の空気の質量及びリサイクルされたガスの割合を定め、そしてこのことからガスの関連総質量を推定するステップS2と、
・上記排気弁の上記開口時点における、上記シリンダ圧力と上記燃焼室の容積とガスの上記関連総質量とに基づき、シリンダの内部のシリンダ温度を定めるステップS3と、
・上記シリンダ温度に基づき上記排気温度を定めるステップS4とを含むことを特徴とする。
・前記シリンダの排気弁の開口に先立つ時点においてシリンダ圧力を測定するステップと、
・先の請求項のいずれか1項に記載の方法を用いて、上記測定されたシリンダ圧力から排気温度を推定するステップと、
・シリンダの上記排出口における排気温度を測定するステップと、
・上記推定された排気温度と上記測定された排気温度とを比較し、そしてこのことから上記シリンダ圧力センサが通常の動作状態か又は不具合状態かを推定するステップとを含むことを特徴とする。
・排気弁の開口時点tBBDCに先立つ時点においてクランク軸の回転角ΘBBDC及び燃焼室内部のシリンダ圧力PBBDCを測定し、そして上記回転角ΘBBDCに基づき上記燃焼室の容積VBBDCを定めるステップS1と、
・上記排気弁の上記開口時点tBBDCにおける上記燃焼室内の空気の質量Mair及びリサイクルされたガスの割合TEGRを定め、そしてこのことからガスの関連総質量Mtotを推定するステップS2と、
・上記排気弁の上記開口時点における、上記シリンダ圧力PBBDCと上記燃焼室の容積VBBDCとガスの上記関連総質量Mtotとに基づき、シリンダ内部のシリンダ温度TBBDCを定めるステップS3と、
・上記シリンダ温度TBBDCに基づき上記排気温度Texhを定めるステップS4とを含む、排気温度を推定するための本発明による方法を適用することを可能にする。
TBBDC = PBBDC × VBBDC / (r × Mtot)
が成り立つと仮定して、シリンダ内部の温度が推定される。
ここでrは、理想的なガス定数と、シリンダ内部のガスの相対分子質量とに特に依存する定数である。
・前記シリンダの排気弁の開口に先立つ時点においてシリンダ圧力を測定するステップと、
・先の請求項のいずれか1項に記載の方法を用いて、上記測定されたシリンダ圧力から排気温度を推定するステップと、
・シリンダの上記排出口における排気温度を測定するステップと、
・上記推定された排気温度と上記測定された排気温度とを比較し、そしてこのことから、推定された温度と測定された温度との間の差が予め設定された値よりも少ないか又は多いかによって上記シリンダ圧力センサが通常の動作状態か又は不具合状態かを推定するステップとを含む。
Claims (3)
- 内燃エンジンのシリンダ内部に位置するシリンダ圧力センサを点検診断するための方法であって、該シリンダが、該シリンダ内部に存在するガスを流出させるために開口可能な排気弁により閉止される排出口を備え、該シリンダが、該シリンダ内で摺動可能なように搭載されたピストンの並進運動を回転運動に変換するクランク軸を備え、該ピストンが該シリンダの燃焼室を閉止し、
該点検診断するための方法が、
・該シリンダの該排気弁の開口時点(tBBDC)の直前の時点において該クランク軸の回転角(ΘBBDC)及び該燃焼室内部のシリンダ圧力(PBBDC)を測定し、そして該回転角(ΘBBDC)に基づき該燃焼室の容積(VBBDC)を定める、ステップS1と、
・該排気弁の該開口時点(tBBDC)における該燃焼室内の空気の質量(Mair)及びリサイクルされたガスの割合(TEGR)を定め、ガスの関連総質量(Mtot)を次式
Mtot = Mair/(1−TEGR)
から推定する、ステップS2と、
・該排気弁の該開口時点(tBBDC)における、該シリンダ圧力(PBBDC)と該燃焼室の該容積(VBBDC)と該ガスの該関連総質量(Mtot)とに基づき、該シリンダ内部のシリンダ温度(TBBDC)を定める、ステップS3と、
・該シリンダ温度(TBBDC)に基づき該排気温度(Texh)を定める、ステップS4とを含む方法を用いて、該測定されたシリンダ圧力から前記排気温度を推定するステップと、
該シリンダの該排出口における排気温度を測定するステップと、
該推定された排気温度と該測定された排気温度とを比較し、そしてこのことから該シリンダ圧力センサが通常の動作状態か又は不具合状態かを推定するステップとを含むことを特徴とする、内燃エンジンのシリンダ内部に位置するシリンダ圧力センサを点検診断するための方法。 - 該ステップS4の間、該シリンダ温度に基づき該排気温度を定めるために、一次方程式(Texh = A.TBBDC + B)が用いられる、請求項1に記載の方法。
- 該ステップS3の間、該空気の該質量及び/又はリサイクルされたガスの割合が、表から又は数学モデルから該クランク軸の回転角に基づき推定され、又は測定される、請求項1〜2のいずれか1項に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0510259A FR2891868B1 (fr) | 2005-10-07 | 2005-10-07 | Procede d'estimation de la temperature d'echappement d'un moteur, et procede de diagnostic d'un capteur de pression cylindre utilisant une estimation de la temperature d'echappement. |
FR0510259 | 2005-10-07 | ||
PCT/FR2006/050954 WO2007042693A1 (fr) | 2005-10-07 | 2006-09-28 | Procede d'estimation de la temperature d'echappement d'un moteur et procede de diagnostic d'un capteur de pression cylindre utilisant une estimation de la temperature d'echappement |
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JP2009511799A JP2009511799A (ja) | 2009-03-19 |
JP5207970B2 true JP5207970B2 (ja) | 2013-06-12 |
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US (1) | US7673503B2 (ja) |
EP (1) | EP1934447B1 (ja) |
JP (1) | JP5207970B2 (ja) |
AT (1) | ATE422608T1 (ja) |
DE (1) | DE602006005173D1 (ja) |
FR (1) | FR2891868B1 (ja) |
WO (1) | WO2007042693A1 (ja) |
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DE102004018578B4 (de) * | 2004-04-16 | 2007-02-22 | Siemens Ag | Verfahren und Vorrichtung zur Erfassung eines Verschmutzungsgrades eines betriebenen Umrichtergerätes |
JP4513779B2 (ja) * | 2006-04-26 | 2010-07-28 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
US20110154821A1 (en) * | 2009-12-24 | 2011-06-30 | Lincoln Evans-Beauchamp | Estimating Pre-Turbine Exhaust Temperatures |
JP5143170B2 (ja) * | 2010-03-17 | 2013-02-13 | 日立オートモティブシステムズ株式会社 | 内燃機関の制御方法 |
DE102010030404A1 (de) * | 2010-06-23 | 2011-12-29 | Robert Bosch Gmbh | Verfahren zum Betrieb einer Verbrennungskraftmaschine |
GB2492355B (en) * | 2011-06-28 | 2017-01-11 | Gm Global Tech Operations Llc | Method for evaluating an exhaust gas temperature in a exhaust pipe of an internal combustion engine |
US20130080083A1 (en) * | 2011-09-25 | 2013-03-28 | John N. Chi | System and method for determining physical properties of exhaust gas produced by an internal combustion engine |
EP2615283B1 (en) | 2012-01-10 | 2020-08-19 | Ford Global Technologies, LLC | A method and observer for determining the exhaust manifold temperature in a turbocharged engine |
DE102012210305A1 (de) * | 2012-06-19 | 2013-08-01 | Continental Automotive Gmbh | Überprüfen der Plausibilität eines Messsignals von einem Zylinderdrucksensor basierend auf einer Abgastemperatur |
FR3082557B1 (fr) | 2018-06-13 | 2021-07-23 | Renault Sas | Procede et systeme d'estimation de la temperature des bougies de prechauffage d'un moteur a combustion interne |
KR102048155B1 (ko) * | 2018-09-05 | 2019-11-22 | 삼성전기주식회사 | 적층 세라믹 전자부품 |
US10830168B1 (en) | 2019-04-18 | 2020-11-10 | Caterpillar Inc. | System and method for estimating exhaust manifold temperature |
CN113606026B (zh) * | 2021-08-27 | 2022-11-15 | 中国第一汽车股份有限公司 | 一种发动机排气温度计算方法 |
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2005
- 2005-10-07 FR FR0510259A patent/FR2891868B1/fr active Active
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2006
- 2006-09-28 DE DE602006005173T patent/DE602006005173D1/de active Active
- 2006-09-28 WO PCT/FR2006/050954 patent/WO2007042693A1/fr active Application Filing
- 2006-09-28 AT AT06831241T patent/ATE422608T1/de not_active IP Right Cessation
- 2006-09-28 EP EP06831241A patent/EP1934447B1/fr not_active Not-in-force
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Publication number | Publication date |
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WO2007042693A1 (fr) | 2007-04-19 |
EP1934447A1 (fr) | 2008-06-25 |
ATE422608T1 (de) | 2009-02-15 |
JP2009511799A (ja) | 2009-03-19 |
DE602006005173D1 (de) | 2009-03-26 |
FR2891868A1 (fr) | 2007-04-13 |
FR2891868B1 (fr) | 2007-12-21 |
US7673503B2 (en) | 2010-03-09 |
EP1934447B1 (fr) | 2009-02-11 |
US20080300769A1 (en) | 2008-12-04 |
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