JP4168872B2 - 内燃機関の制御装置 - Google Patents
内燃機関の制御装置 Download PDFInfo
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- JP4168872B2 JP4168872B2 JP2003298358A JP2003298358A JP4168872B2 JP 4168872 B2 JP4168872 B2 JP 4168872B2 JP 2003298358 A JP2003298358 A JP 2003298358A JP 2003298358 A JP2003298358 A JP 2003298358A JP 4168872 B2 JP4168872 B2 JP 4168872B2
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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
- F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
- F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
- F02D13/0203—Variable control of intake and exhaust valves
- F02D13/0207—Variable control of intake and exhaust valves changing valve lift or valve lift and timing
- F02D13/0211—Variable control of intake and exhaust valves changing valve lift or valve lift and timing the change of valve timing is caused by the change in valve lift, i.e. both valve lift and timing are functionally related
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0021—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of rocker arm ratio
- F01L13/0026—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of rocker arm ratio by means of an eccentric
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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
- F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
- F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
- F02D13/0223—Variable control of the intake valves only
- F02D13/0234—Variable control of the intake valves only changing the valve timing only
- F02D13/0238—Variable control of the intake valves only changing the valve timing only by shifting the phase, i.e. the opening periods of the valves are constant
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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
- F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
- F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
- F02D13/0261—Controlling the valve overlap
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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
- 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
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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
- F02D41/008—Controlling each cylinder individually
- F02D41/0082—Controlling each cylinder individually per groups or banks
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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
- 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
- F02M26/01—Internal exhaust gas recirculation, i.e. wherein the residual exhaust gases are trapped in the cylinder or pushed back from the intake or the exhaust manifold into the combustion chamber without the use of additional passages
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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
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0063—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of cam contact point by displacing an intermediate lever or wedge-shaped intermediate element, e.g. Tourtelot
- F01L2013/0073—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of cam contact point by displacing an intermediate lever or wedge-shaped intermediate element, e.g. Tourtelot with an oscillating cam acting on the valve of the "Delphi" type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2800/00—Methods of operation using a variable valve timing mechanism
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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
- F02D41/0002—Controlling intake air
- F02D2041/001—Controlling intake air for engines with variable valve actuation
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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
- F02D41/1439—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the position of the sensor
- F02D41/1441—Plural sensors
- F02D41/1443—Plural sensors with one sensor per cylinder or group of cylinders
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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
- F02D41/1497—With detection of the mechanical response of the engine
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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
- Y02T10/12—Improving ICE efficiencies
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Analytical Chemistry (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Valve Device For Special Equipments (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Description
3…吸気弁
Claims (11)
- 一対の気筒群と、それぞれの気筒群毎に、運転状態に応じて吸気弁のリフト作動角の拡大縮小及びリフト中心角の位相の遅進を行い内燃機関の吸入空気量を連続的に可変制御可能な可変動弁機構と、を備えた内燃機関の制御装置において、
各気筒の筒内圧力を検出する筒内圧力検出手段と、
一対の気筒群間の筒内圧力に基づいた燃焼安定度を比較する燃焼安定度比較手段と、を有し、
吸気弁の開弁後に排気弁が閉弁するよう吸気弁開弁期間と排気弁開弁期間とがオーバーラップし、吸気弁閉時期が下死点前に設定された運転状態で、一方の気筒群の平均筒内圧力と他方の気筒群の平均筒内圧力との差が所定値以上ある場合に、
燃焼安定度比較手段により、平均筒内圧力大側気筒群の所定サイクルでの各気筒の燃焼が、平均筒内圧力小側気筒群の所定サイクルでの各気筒の燃焼より安定していないと判定されたときには、可変動弁機構を用いて平均筒内圧力大側気筒群の吸気弁のリフト作動角を所定量縮小するリフト作動角縮小補正制御を行い、
燃焼安定度比較手段により、平均筒内圧力大側気筒群の所定サイクルでの各気筒の燃焼が、平均筒内圧力小側気筒群の所定サイクルでの各気筒の燃焼よりも安定していると判定されたときには、可変動弁機構を用いて平均筒内圧力大側気筒群の吸気弁のリフト中心角を所定量進角させるリフト中心角進角補正制御を行うことを特徴とする内燃機関の制御装置。 - 上記リフト作動角縮小補正制御は、リフト中心角を保持し、かつ吸気弁開時期と排気弁閉時期とがオーバーラップした状態を保持する範囲で、平均筒内圧力大側バンクの吸気弁のリフト作動角を縮小させることを特徴とする請求項1に記載の内燃機関の制御装置。
- 上記リフト中心角進角補正制御は、リフト作動角を維持した状態で、平均筒内圧力大側バンクの吸気弁のリフト中心角を進角させることを特徴とする請求項1に記載の内燃機関の制御装置。
- 上記リフト作動角縮小補正制御は、吸気弁閉時期が下死点に近い程吸気弁のリフト作動角縮小量を大きくすると共に、吸気弁閉時期がピストンスピードが最大となるクランク角に近い程吸気弁のリフト作動角縮小量を小さくすることを特徴とする請求項1または2に記載の内燃機関の制御装置。
- 上記リフト中心角進角補正制御は、吸気弁閉時期が下死点に近い程吸気弁のリフト中心角進角量を大きくすると共に、吸気弁閉時期がピストンスピードが最大となるクランク角に近い程吸気弁のリフト中心角進角量を小さくすることを特徴とする請求項1または3に記載の内燃機関の制御装置。
- 燃焼安定度比較手段は、所定サイクル内における、平均筒内圧力大側気筒群の筒内圧力の標準偏差と、平均筒内圧力小側気筒群の筒内圧力の標準偏差と、を用いて、平均筒内圧力大側気筒群が平均筒内圧力小側気筒群に対して燃焼が安定しているか否かを判定していることを特徴とする請求項1〜5のいずれかに記載の内燃機関の制御装置。
- 燃焼安定度比較手段は、内燃機関から発生する振動の周波数のうち特定周波数の変動成分に着目し、平均筒内圧力大側気筒群から発生する上記特定周波数の変動成分のバラツキと、平均筒内圧力小側気筒群から発生する上記特定周波数の変動成分のバラツキと、を比較して、平均筒内圧力大側気筒群が平均筒内圧力小側気筒群に対して燃焼が安定しているか否かを判定していることを特徴とする請求項1〜5のいずれかに記載の内燃機関の制御装置。
- 燃焼安定度比較手段は、所定サイクル内における、平均筒内圧力大側気筒群の筒内圧力の最大値及び最小値と、平均筒内圧力小側気筒群の筒内圧力の最大値及び最小値と、を比較して、平均筒内圧力大側気筒群が平均筒内圧力小側気筒群に対して燃焼が安定しているか否かを判定していることを特徴とする請求項1〜5のいずれかに記載の内燃機関の制御装置。
- 筒内圧力検出手段は、圧電素子を用いた圧電式センサであり、各気筒毎にそれぞれ配置されていることを特徴とする請求項1〜8のいずれかに記載の内燃機関の制御装置。
- 筒内圧力検出手段は、クランクシャフトの回転角を検出するクランク角センサの検出信号を用いて算出された回転変動率を用いて各気筒毎の筒内圧力を算出していることを特徴とする請求項1〜8のいずれかに記載の内燃機関の制御装置。
- 各気筒毎に燃料を供給する燃料供給手段と、内燃機関の各気筒群の排気系にそれぞれ設けられた空燃比検出手段と、これら空燃比検出手段の検出信号に基づいて目標空燃比となるように上記燃料供給手段による燃料供給量を制御するフィードバック制御手段と、を備えていることを特徴とする請求項1〜10のいずれかに記載の内燃機関の制御装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003298358A JP4168872B2 (ja) | 2003-08-22 | 2003-08-22 | 内燃機関の制御装置 |
US10/902,073 US6912995B2 (en) | 2003-08-22 | 2004-07-30 | Control apparatus for internal combustion engine |
CNB2004100641702A CN1332128C (zh) | 2003-08-22 | 2004-08-20 | 用于内燃机的控制装置 |
Applications Claiming Priority (1)
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JP2003298358A JP4168872B2 (ja) | 2003-08-22 | 2003-08-22 | 内燃機関の制御装置 |
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JP2005069074A JP2005069074A (ja) | 2005-03-17 |
JP4168872B2 true JP4168872B2 (ja) | 2008-10-22 |
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JP2003298358A Expired - Fee Related JP4168872B2 (ja) | 2003-08-22 | 2003-08-22 | 内燃機関の制御装置 |
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US (1) | US6912995B2 (ja) |
JP (1) | JP4168872B2 (ja) |
CN (1) | CN1332128C (ja) |
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BR112013005992B1 (pt) * | 2010-12-27 | 2021-01-05 | Nissan Motor Co., Ltd. | método e aparelho para controlar partida de motor de combustão interna |
US9435272B2 (en) * | 2012-10-25 | 2016-09-06 | Toyota Jidosha Kabushiki Kaisha | Internal combustion engine and control apparatus of the internal combustion engine |
US9399956B2 (en) | 2013-03-15 | 2016-07-26 | GM Global Technology Operations LLC | Phaser control systems and methods for balancing mean effective pressure |
DE102015209665B4 (de) * | 2014-06-25 | 2022-10-20 | Vitesco Technologies GmbH | Verfahren zur Identifizierung von Ventilsteuerzeiten eines Verbrennungsmotors |
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US5377654A (en) * | 1992-11-12 | 1995-01-03 | Ford Motor Company | System using time resolved air/fuel sensor to equalize cylinder to cylinder air/fuel ratios with variable valve control |
JPH09203337A (ja) | 1996-01-25 | 1997-08-05 | Unisia Jecs Corp | 内燃機関の空燃比制御装置 |
JP2000257410A (ja) * | 1999-03-10 | 2000-09-19 | Toyota Motor Corp | 内燃機関の可変バルブ特性装置および3次元カム |
JP4016568B2 (ja) * | 2000-03-30 | 2007-12-05 | 日産自動車株式会社 | ガソリン自己着火式内燃機関 |
JP4336444B2 (ja) * | 2000-06-12 | 2009-09-30 | 日産自動車株式会社 | 内燃機関の可変動弁装置 |
JP2002089341A (ja) | 2000-09-11 | 2002-03-27 | Nissan Motor Co Ltd | 車両用内燃機関の制御装置 |
JP3699655B2 (ja) * | 2001-02-01 | 2005-09-28 | 三菱電機株式会社 | 内燃機関のバルブタイミング制御装置 |
US6843231B1 (en) * | 2003-12-19 | 2005-01-18 | Caterpillar Inc | Cylinder to cylinder balancing using intake valve actuation |
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2003
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2004
- 2004-07-30 US US10/902,073 patent/US6912995B2/en not_active Expired - Fee Related
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US6912995B2 (en) | 2005-07-05 |
US20050039723A1 (en) | 2005-02-24 |
CN1584311A (zh) | 2005-02-23 |
CN1332128C (zh) | 2007-08-15 |
JP2005069074A (ja) | 2005-03-17 |
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