JP2018053845A - 内燃機関制御装置 - Google Patents
内燃機関制御装置 Download PDFInfo
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 146
- 239000000446 fuel Substances 0.000 claims description 38
- 238000001514 detection method Methods 0.000 claims description 2
- 230000000593 degrading effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 18
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- 238000002347 injection Methods 0.000 description 8
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- 230000006866 deterioration Effects 0.000 description 5
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- 239000000203 mixture Substances 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000003134 recirculating effect Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000000979 retarding effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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]
- F02D41/005—Controlling exhaust gas recirculation [EGR] according to engine operating conditions
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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
- 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
- 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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1497—With detection of the mechanical response of the engine
- F02D41/1498—With detection of the mechanical response of the engine measuring engine roughness
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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
- F02D43/00—Conjoint electrical control of two or more functions, e.g. ignition, fuel-air mixture, recirculation, supercharging or exhaust-gas treatment
-
- 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
- F02M26/02—EGR systems specially adapted for supercharged engines
- F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
- F02M26/06—Low pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust downstream of the turbocharger turbine and reintroduced into the intake system upstream of the compressor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/045—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions combined with electronic control of other engine functions, e.g. fuel injection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
- F02P5/15—Digital data processing
- F02P5/1502—Digital data processing using one central computing unit
- F02P5/1516—Digital data processing using one central computing unit with means relating to exhaust gas recirculation, e.g. turbo
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
- F02P5/15—Digital data processing
- F02P5/152—Digital data processing dependent on pinking
- F02P5/1523—Digital data processing dependent on pinking with particular laws of return to advance, e.g. step by step, differing from the laws of retard
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
- F02P5/15—Digital data processing
- F02P5/153—Digital data processing dependent on combustion 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
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
- F02D2200/101—Engine speed
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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)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Ignition Timing (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
Description
図7は、低負荷領域におけるエンジンの動作範囲を示す図である。低負荷領域では、点火時期の進角量は、燃費悪化の観点から最適点火時期によって制限され、遅角量は安定限界で制限される。外部EGR率の増加と共に、燃費最良点火時期と安定限界にはさまれる点火時期の設定可能範囲は減少する。外部EGR率は、この点火時期の設定可能範囲の中で最大値となる点で最も内燃機関の効率が高くなるが、わずかにEGR率や点火時期がずれただけで安定限界や燃費最良点火時期を超えてしまうため、外乱に対するロバスト性が低くなる。このため、点火時期の設定可能範囲を確保しつつ、外部EGR率を制御することが重要である。
また、制御部(CPU20e)は点火タイミングを設定された点火進角限界まで進角させた後、点火タイミングを遅角させた状態において、内燃機関(エンジン100)の燃焼安定限界に達していない場合には、点火タイミングを再度、進角させるとともに排気再循環量を増加させるように制御することが望ましい。また、制御部(CPU20e)は点火タイミングを設定されたノック限界まで進角させた後、点火タイミングを遅角させた状態において、前記内燃機関の燃焼安定限界に達していない場合には、点火タイミングを再度、進角させるとともに排気再循環量を増加させるように制御することが望ましい。
2…電子制御スロットル
3…湿度センサ
4…過給機
4a…コンプレッサ
4b…タービン
5…可変バルブ
6…吸気マニホールド
7…インタークーラ
8…冷却水温度センサ(図示していない)
9…空燃比センサ
10…三元触媒
11…ウェイストゲート弁
12…アクセル開度センサ
13…筒内直接噴射用インジェクタ
14…シリンダ
15…排気管
16…点火プラグ
20…ECU
20a…入力回路
20b…入出力ポート
20c…RAM
20d…ROM
20e…CPU
20f…電子制御スロットル駆動回路
20g…インジェクタ駆動回路
20h…ウェイストゲート弁駆動回路
20j…インタークーラ冷却水弁駆動回路
20k…変速機駆動回路
20m…EGRバルブ駆動回路
30…変速機
40…EGR管
41…EGRバルブ
42…EGRクーラ
43…差圧センサ
44…EGR温度センサ
100…エンジン
Claims (12)
- 内燃機関の排気ガスを再度、前記内燃機関に吸気させる排気再循環流路が設けられた前記内燃機関を制御する内燃機関制御装置において、
前記内燃機関の回転数、又は前記内燃機関の筒内圧力に基づいて前記内燃機関の燃焼不安定性を求める燃焼不安定性算出部と、
進角限界点火時期と燃焼不安定性を検出した点火時期の差が所定の値以上であるとき、排気再循環量と点火進角量を共に増加させる方向に進めるように制御する制御部と、を備える内燃機関制御装置。 - 請求項1に記載の内燃機関制御装置において、
前記点火進角限界がノック限界点火時期であることを特徴とする内燃機関制御装置。 - 請求項1に記載の内燃機関制御装置において、
前記点火進角限界が燃費最良点火時期であることを特徴とする内燃機関の制御装置。 - 請求項1に記載の内燃機関制御装置において、
前記燃焼不安定性算出部は前記燃焼安定性を筒内圧センサに基づき検出した筒内圧力最大位置の変動量から推定することを特徴とする内燃機関制御装置。 - 請求項1に記載の内燃機関制御装置において、
前記燃焼安定性の検出装置は、筒内圧センサであり、前記燃焼不安定性算出部は前記燃焼安定性を筒内圧センサ基づき推定したエンジン出力の変動量から推定することを特徴とする内燃機関制御装置。 - 請求項3に記載の内燃機関制御装置において、
前記制御部は、燃焼不安定性を検出した点火時期を設定した後に、進角限界点火時期へと点火時期を変更させた後に、前記排気再循環量と点火進角量を共に増加させる方向に進めることを特徴とする内燃機関制御装置。 - 請求項6に記載の内燃機関制御装置において、
前記制御部は、前記排気再循環量と点火進角量を共に増加させる方向に制御する際に、前記筒内圧力により検出した燃焼中心位置が所定の範囲に収まるように点火進角量を制御することを特徴とする内燃機関制御装置。 - 内燃機関の排気ガスを再度、前記内燃機関に吸気させる排気再循環流路が設けられた前記内燃機関を制御する内燃機関制御装置において、
前記内燃機関の点火を行う点火プラグの点火タイミングを進角させた後、点火タイミングを遅角させた状態において、前記内燃機関の燃焼安定限界に達していない場合には、点火タイミングを再度、進角させるとともに排気再循環量を増加させるように制御する制御部を備えた内燃機関制御装置。 - 請求項8に記載の内燃機関制御装置において、
前記制御部は、点火タイミングを設定された点火進角限界まで進角させた後、点火タイミングを遅角させた状態において、前記内燃機関の燃焼安定限界に達していない場合には、点火タイミングを再度、進角させるとともに排気再循環量を増加させるように制御する内燃機関制御装置。 - 請求項8に記載の内燃機関制御装置において、
前記制御部は、点火タイミングを設定されたノック限界まで進角させた後、点火タイミングを遅角させた状態において、前記内燃機関の燃焼安定限界に達していない場合には、点火タイミングを再度、進角させるとともに排気再循環量を増加させるように制御する内燃機関制御装置。 - 請求項8〜10の何れかに記載の内燃機関制御装置において、
前記制御部は、最初に点火タイミングを進角させる際に排気再循環量は一定値を維持するように制御する内燃機関制御装置。 - 請求項8に記載の内燃機関制御装置において、
前記制御部は、点火タイミングを設定された点火進角限界まで進角させた後、点火タイミングを遅角させた状態において、前記内燃機関の燃焼安定限界に達した場合には、点火タイミングを再度、進角させるとともに排気再循環量を減少させるように制御する内燃機関制御装置。
Priority Applications (3)
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JP2016192524A JP6920805B2 (ja) | 2016-09-30 | 2016-09-30 | 内燃機関制御装置 |
EP17855369.9A EP3521600B1 (en) | 2016-09-30 | 2017-07-18 | Internal combustion engine control device |
PCT/JP2017/025848 WO2018061411A1 (ja) | 2016-09-30 | 2017-07-18 | 内燃機関制御装置 |
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JP6920805B2 JP6920805B2 (ja) | 2021-08-18 |
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Cited By (4)
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KR20180048984A (ko) * | 2015-10-02 | 2018-05-10 | 콘티넨탈 오토모티브 게엠베하 | 자동차용 내연 엔진을 동작시키는 방법 및 내연 엔진용 시스템 |
CN110552807A (zh) * | 2018-06-01 | 2019-12-10 | 丰田自动车株式会社 | 内燃机的控制装置 |
JP2020176577A (ja) * | 2019-04-19 | 2020-10-29 | 日産自動車株式会社 | 車両の制御方法及び車両 |
JP7485026B2 (ja) | 2020-06-04 | 2024-05-16 | 日産自動車株式会社 | 内燃機関の制御方法および制御装置 |
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AT525555B1 (de) * | 2022-03-15 | 2023-05-15 | Avl List Gmbh | Verfahren zum betreiben einer brennkraftmaschine |
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- 2017-07-18 WO PCT/JP2017/025848 patent/WO2018061411A1/ja unknown
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KR20180048984A (ko) * | 2015-10-02 | 2018-05-10 | 콘티넨탈 오토모티브 게엠베하 | 자동차용 내연 엔진을 동작시키는 방법 및 내연 엔진용 시스템 |
KR102027079B1 (ko) | 2015-10-02 | 2019-09-30 | 콘티넨탈 오토모티브 게엠베하 | 자동차용 내연 엔진을 동작시키는 방법 및 내연 엔진용 시스템 |
US10767581B2 (en) | 2015-10-02 | 2020-09-08 | Vitesco Technologies GmbH | Method for operating an internal combustion engine for a motor vehicle, and a system for an internal combustion engine |
CN110552807A (zh) * | 2018-06-01 | 2019-12-10 | 丰田自动车株式会社 | 内燃机的控制装置 |
JP2019210834A (ja) * | 2018-06-01 | 2019-12-12 | トヨタ自動車株式会社 | 内燃機関の制御装置 |
JP2020176577A (ja) * | 2019-04-19 | 2020-10-29 | 日産自動車株式会社 | 車両の制御方法及び車両 |
JP7360804B2 (ja) | 2019-04-19 | 2023-10-13 | 日産自動車株式会社 | 車両の制御方法及び車両 |
JP7485026B2 (ja) | 2020-06-04 | 2024-05-16 | 日産自動車株式会社 | 内燃機関の制御方法および制御装置 |
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EP3521600A4 (en) | 2020-09-16 |
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