JP4832545B2 - 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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- JP4832545B2 JP4832545B2 JP2009093940A JP2009093940A JP4832545B2 JP 4832545 B2 JP4832545 B2 JP 4832545B2 JP 2009093940 A JP2009093940 A JP 2009093940A JP 2009093940 A JP2009093940 A JP 2009093940A JP 4832545 B2 JP4832545 B2 JP 4832545B2
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- 238000002485 combustion reaction Methods 0.000 title claims description 188
- 238000002347 injection Methods 0.000 claims description 255
- 239000007924 injection Substances 0.000 claims description 255
- 239000000446 fuel Substances 0.000 claims description 173
- 150000002500 ions Chemical class 0.000 claims description 67
- 238000001514 detection method Methods 0.000 claims description 29
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 230000003111 delayed effect Effects 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 19
- 229910052799 carbon Inorganic materials 0.000 description 19
- 239000000203 mixture Substances 0.000 description 19
- 238000000034 method Methods 0.000 description 15
- 238000001816 cooling Methods 0.000 description 10
- 238000009825 accumulation Methods 0.000 description 9
- 230000008859 change Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 239000000567 combustion gas Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000004215 Carbon black (E152) Substances 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Images
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
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/40—Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
- F02D41/402—Multiple injections
- F02D41/405—Multiple injections with post injections
-
- 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
- F02D35/021—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions using an ionic current sensor
-
- 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
- F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
- F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
-
- 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
- F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
- F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
- F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
-
- 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
- F01N2430/00—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics
- F01N2430/08—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics by modifying ignition or injection timing
- F01N2430/085—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics by modifying ignition or injection timing at least a part of the injection taking place during expansion or exhaust stroke
-
- 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
-
- 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
- F02D41/30—Controlling fuel injection
- F02D41/3094—Controlling fuel injection the fuel injection being effected by at least two different injectors, e.g. one in the intake manifold and one in the cylinder
-
- 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
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/04—Injectors peculiar thereto
- F02M69/042—Positioning of injectors with respect to engine, e.g. in the air intake conduit
- F02M69/044—Positioning of injectors with respect to engine, e.g. in the air intake conduit for injecting into the intake conduit downstream of an air throttle valve
-
- 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
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/04—Injectors peculiar thereto
- F02M69/042—Positioning of injectors with respect to engine, e.g. in the air intake conduit
- F02M69/046—Positioning of injectors with respect to engine, e.g. in the air intake conduit for injecting into both the combustion chamber and the intake conduit
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Fuel-Injection Apparatus (AREA)
Description
図2は、吸気行程において燃焼空間に燃料を直接噴射する場合の燃料噴射時期を示す図で、図3は吸気流路に燃料を直接噴射する場合の燃料噴射時期を示す図であり、共に横軸はクランク軸の回転角度を示している。
Claims (2)
- 気筒ごとに燃焼空間に燃料を直接噴射する直噴用燃料噴射弁を有する内燃機関を制御する内燃機関の制御装置であって、
少なくとも一部の運転状態では気筒ごとに吸気行程または圧縮行程で燃料を噴射する主噴射とは別に、上記主噴射よりも遅れて燃料を噴射する副噴射を行う副噴射手段と、
上記燃焼空間に突き出させた電極で上記燃焼空間の一部分に与えた電位が燃焼火炎内に発生するイオンに作用することにより燃焼火炎内を流れる微弱電流を検知するイオン電流検知手段と
を備え、
上記副噴射手段による上記副噴射の開始時期を上記イオン電流検知手段から得られるイオン電流発生パターンに基づいて設定し、
上記副噴射手段による上記副噴射の開始時期を、上記イオン電流検知手段から得られる上記イオン電流発生パターンから火花放電期間を除いた点火時期以降で最初に電流値が予め定めた一定時間連続して増大し始めた時点から予め定めた噴射遅延時間だけ遅れた時点として設定し、
上記噴射遅延時間は、予め定めた基準値に比率を乗じた値であり、
上記比率は、上記イオン電流検知手段から得られる上記イオン電流発生パターンから火花放電期間を除いた点火時期以降で最初に電流値が予め定めた一定時間連続して増大し始めた時点の点火時期からの経過時間を上記経過時間の基準値として予め定めた経過時間基準値で除した値である
ことを特徴とする内燃機関の制御装置。 - 気筒ごとに燃焼空間に燃料を直接噴射する直噴用燃料噴射弁と吸気流路に燃料を噴射する吸気流路用燃料噴射弁とを有する内燃機関を制御する内燃機関の制御装置であって、
少なくとも一部の運転状態では気筒ごとに排気行程または吸気行程で上記吸気流路用燃料噴射弁から燃料を噴射する主噴射とは別に、上記主噴射よりも遅れて燃料を噴射する副噴射を行う副噴射手段と、
上記燃焼空間に突き出させた電極で上記燃焼空間の一部分に与えた電位が燃焼火炎内に発生するイオンに作用することにより燃焼火炎内を流れる微弱電流を検知するイオン電流検知手段と
を備え、
上記副噴射手段による上記副噴射の開始時期を上記イオン電流検知手段から得られるイオン電流発生パターンに基づいて設定し、
上記副噴射手段による上記副噴射の開始時期を、上記イオン電流検知手段から得られる上記イオン電流発生パターンから火花放電期間を除いた点火時期以降で最初に電流値が予め定めた一定時間連続して増大し始めた時点から予め定めた噴射遅延時間だけ遅れた時点として設定し、
上記噴射遅延時間は、予め定めた基準値に比率を乗じた値であり、
上記比率は、上記イオン電流検知手段から得られる上記イオン電流発生パターンから火花放電期間を除いた点火時期以降で最初に電流値が予め定めた一定時間連続して増大し始めた時点の点火時期からの経過時間を上記経過時間の基準値として予め定めた経過時間基準値で除した値である
ことを特徴とする内燃機関の制御装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2009093940A JP4832545B2 (ja) | 2009-04-08 | 2009-04-08 | 内燃機関の制御装置 |
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JP2009093940A JP4832545B2 (ja) | 2009-04-08 | 2009-04-08 | 内燃機関の制御装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010242669A JP2010242669A (ja) | 2010-10-28 |
JP4832545B2 true JP4832545B2 (ja) | 2011-12-07 |
Family
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JP2009093940A Expired - Fee Related JP4832545B2 (ja) | 2009-04-08 | 2009-04-08 | 内燃機関の制御装置 |
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JP (1) | JP4832545B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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FR2981988B1 (fr) * | 2011-11-02 | 2017-09-01 | Valeo Systemes De Controle Moteur | Procede d'injection d'essence dans un cylindre d'un moteur thermique |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4423816B2 (ja) * | 2001-06-06 | 2010-03-03 | トヨタ自動車株式会社 | 筒内噴射式内燃機関の燃料噴射制御装置 |
JP2006152836A (ja) * | 2004-11-25 | 2006-06-15 | Toyota Motor Corp | 内燃機関 |
JP2007321591A (ja) * | 2006-05-30 | 2007-12-13 | Toyota Motor Corp | 筒内噴射エンジンの燃料噴射制御装置 |
JP4514769B2 (ja) * | 2007-05-09 | 2010-07-28 | 三菱電機株式会社 | 内燃機関の制御装置および内燃機関の制御方法 |
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- 2009-04-08 JP JP2009093940A patent/JP4832545B2/ja not_active Expired - Fee Related
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JP2010242669A (ja) | 2010-10-28 |
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