JP6156485B2 - 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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- JP6156485B2 JP6156485B2 JP2015508100A JP2015508100A JP6156485B2 JP 6156485 B2 JP6156485 B2 JP 6156485B2 JP 2015508100 A JP2015508100 A JP 2015508100A JP 2015508100 A JP2015508100 A JP 2015508100A JP 6156485 B2 JP6156485 B2 JP 6156485B2
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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]
- F02D41/0077—Control of the EGR valve or actuator, e.g. duty cycle, closed loop control of position
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D31/00—Use of speed-sensing governors to control combustion engines, not otherwise provided for
- F02D31/001—Electric control of rotation speed
- F02D31/002—Electric control of rotation speed controlling air supply
- F02D31/003—Electric control of rotation speed controlling air supply for idle speed control
- F02D31/005—Electric control of rotation speed controlling air supply for idle speed control by controlling a throttle by-pass
-
- 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
- F02D41/0007—Controlling intake air for control of turbo-charged or super-charged engines
-
- 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
-
- 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
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/08—Introducing corrections for particular operating conditions for idling
-
- 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
- F02D41/3011—Controlling fuel injection according to or using specific or several modes of combustion
- F02D41/3076—Controlling fuel injection according to or using specific or several modes of combustion with special conditions for selecting a mode of combustion, e.g. for starting, for diagnosing
-
- 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
- F02D41/401—Controlling injection timing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
-
- 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
-
- 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
-
- 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
- F02M26/05—High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor
-
- 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
- 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
- F02M26/09—Constructional details, e.g. structural combinations of EGR systems and supercharger systems; Arrangement of the EGR and supercharger systems with respect to the engine
-
- 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
- F02M26/09—Constructional details, e.g. structural combinations of EGR systems and supercharger systems; Arrangement of the EGR and supercharger systems with respect to the engine
- F02M26/10—Constructional details, e.g. structural combinations of EGR systems and supercharger systems; Arrangement of the EGR and supercharger systems with respect to the engine having means to increase the pressure difference between the exhaust and intake system, e.g. venturis, variable geometry turbines, check valves using pressure pulsations or throttles in the air intake or exhaust system
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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
- F02M26/52—Systems for actuating EGR valves
-
- 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
- F02P5/05—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 mechanical means
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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
-
- 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)
- Exhaust-Gas Circulating Devices (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Supercharger (AREA)
Description
前記内燃機関の吸気通路に設置された前記過給機のコンプレッサと、
前記吸気通路の、前記コンプレッサの下流に設置されたスロットル弁と、
前記吸気通路の、前記コンプレッサの上流側と前記スロットル弁の下流側とを接続するISC通路と、
所定の開度に制御されることで前記ISC通路に流れる空気量を調節するISC弁と、
前記内燃機関に要求される要求トルクが、現在設定されている制御目標値から予想される予想発生トルクより小さく、且つ前記スロットル弁の下流側の吸気圧が前記コンプレッサの上流側の吸気圧よりも大きい場合に、前記ISC弁の開度を全開とする開弁制御を実行する制御手段と、
前記開弁制御の実行中、前記リーン燃焼運転への切り替えを禁止する手段と、
を備えるものである。
[実施の形態1の構成]
図1は、本発明の実施の形態1のシステム構成を説明するための模式図である。本実施形態のシステムは、制御装置の適用対象となる火花点火式の内燃機関2を備えている。内燃機関2はガソリンを燃料とするものであり、例えば、車両の動力源として好ましく使用することができる。内燃機関2は、空燃比が理論空燃比(以下「ストイキ」)近傍の混合気を燃焼させるストイキ燃焼運転と、所定のリーン燃焼運転領域で理論空燃比より大幅にリーンな空燃比の混合気を燃焼させるリーン燃焼運転と、を切り替えて行うことができる。また、図1では、内燃機関2の1つの気筒のみを図示しているが、内燃機関2は複数の気筒を備えている。内燃機関2の気筒数および気筒配置は特に限定されるものではない。
本実施の形態において制御装置が実行する制御には、ISC弁34の開閉状態に関する制御が含まれる。この制御において、制御装置は要求トルクと、内燃機関で発生し得るトルクである予想発生トルク(推定トルクとも称する)とを取得する。要求トルクと予想発生トルクとは既知の手法により演算され、ここではその演算手法は限定されない。また、要求トルクと予想発生トルクとは、本実施の形態における制御装置が直接的に演算するものに限らず、制御装置の上位に配置されたシステムより入力されるものであってもよい。
ところで、本実施の形態の内燃機関2はリーン燃焼運転が可能な内燃機関である。このようなリーン燃焼運転可能な内燃機関の場合、リーン燃焼を安定して行うために吸気ポート形状が最適化され、筒内に発生するスワール流やタンブル流を強化するように設計されている。しかし、ISC弁全開制御の実行中は、ISC通路32を介して吸気が上流側に逆流する。このためISC弁全開制御中は、吸気通路12内での吸気の流れも大きく変化する。その結果、筒内に発生するスワール流やタンブル流が不足し、特に、リーン燃焼限界が低下し、あるいは、リーン燃焼が不安定となることが考えられる。
更に、本実施の形態の制御装置は、リーン燃焼運転時には、ISC弁全開制御を禁止する。つまり、リーン燃焼運転が行われている時には、ISC弁全開条件が成立するような運転状態であっても、ISC弁全開制御が行われない。
4 筒内インジェクタ
6 点火プラグ
8 吸気弁
10 排気弁
12 吸気通路
14 排気通路
20 エアクリーナ
22 エアフロメータ
24 コンプレッサ
26 インタークーラ
28 スロットル弁
30 サージタンク
32 ISC通路
34 ISC弁
36 排気タービン
38 触媒
40 消音器
42 第1圧力センサ
44 第2圧力センサ
50 ECU
Claims (2)
- 理論空燃比よりリーンな空燃比の混合気を燃焼させるリーン燃焼運転と、空燃比が理論空燃比近傍の混合気を燃焼させるストイキ燃焼運転と、を切り替え可能な過給機付き内燃機関の制御装置であって、
前記内燃機関の吸気通路に設置された前記過給機のコンプレッサと、
前記吸気通路の、前記コンプレッサの下流に設置されたスロットル弁と、
前記吸気通路の、前記コンプレッサの上流側と前記スロットル弁の下流側とを接続するISC通路と、
所定の開度に制御されることで前記ISC通路に流れる空気量を調節するISC弁と、
前記内燃機関に要求される要求トルクが、現在設定されている制御目標値から予想される予想発生トルクより小さく、且つ前記スロットル弁の下流側の吸気圧が前記コンプレッサの上流側の吸気圧よりも大きい場合に、前記ISC弁の開度を全開とする開弁制御を実行する制御手段と、
前記開弁制御の実行中、前記リーン燃焼運転への切り替えを禁止する手段と、
を備えることを特徴とする内燃機関の制御装置。 - 前記リーン燃焼運転が行われている場合、前記開弁制御の実行を禁止する開弁制御禁止手段を、更に、備え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。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013066968 | 2013-03-27 | ||
JP2013066968 | 2013-03-27 | ||
PCT/JP2014/050139 WO2014156208A1 (ja) | 2013-03-27 | 2014-01-08 | 内燃機関の制御装置 |
Publications (2)
Publication Number | Publication Date |
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JPWO2014156208A1 JPWO2014156208A1 (ja) | 2017-02-16 |
JP6156485B2 true JP6156485B2 (ja) | 2017-07-05 |
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JP2015508100A Expired - Fee Related JP6156485B2 (ja) | 2013-03-27 | 2014-01-08 | 内燃機関の制御装置 |
Country Status (4)
Country | Link |
---|---|
US (4) | US9897022B2 (ja) |
EP (4) | EP2998551B1 (ja) |
JP (1) | JP6156485B2 (ja) |
WO (4) | WO2014156210A1 (ja) |
Families Citing this family (6)
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EP2998551B1 (en) | 2013-03-27 | 2022-04-13 | Toyota Jidosha Kabushiki Kaisha | Control device for internal combustion engine |
KR20170139926A (ko) * | 2016-06-10 | 2017-12-20 | 현대자동차주식회사 | 배기 가스 재순환 장치를 구비한 엔진 시스템 및 제어 방법 |
US10273965B2 (en) * | 2016-08-08 | 2019-04-30 | Borgwarner Inc. | Method of extended thermodynamic turbine mapping via compressor inlet throttling |
US11187166B2 (en) | 2017-12-22 | 2021-11-30 | Nissan Motor Co., Ltd. | Internal combustion engine and method of controlling same |
US11560829B2 (en) * | 2020-01-02 | 2023-01-24 | Caterpillar Inc. | Recirculation system for a power system that includes a plurality of turbochargers |
CN111677594B (zh) * | 2020-05-12 | 2021-09-10 | 天津大学 | 一种增压发动机空气系统的快速储气与供给控制方法 |
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-
2014
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- 2014-01-08 WO PCT/JP2014/050141 patent/WO2014156210A1/ja active Application Filing
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- 2014-01-08 EP EP14772980.0A patent/EP2998550A4/en not_active Withdrawn
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JPWO2014156208A1 (ja) | 2017-02-16 |
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EP2998552B1 (en) | 2020-11-18 |
US20160047339A1 (en) | 2016-02-18 |
EP2998551A4 (en) | 2016-07-27 |
EP2998551B1 (en) | 2022-04-13 |
WO2014156210A1 (ja) | 2014-10-02 |
EP2998551A1 (en) | 2016-03-23 |
WO2014156209A1 (ja) | 2014-10-02 |
EP2998550A4 (en) | 2016-07-20 |
US9765714B2 (en) | 2017-09-19 |
US20160061126A1 (en) | 2016-03-03 |
WO2014156208A1 (ja) | 2014-10-02 |
EP2998552A4 (en) | 2016-07-27 |
EP2998550A1 (en) | 2016-03-23 |
US9897022B2 (en) | 2018-02-20 |
EP2998549A4 (en) | 2017-03-08 |
EP2998549B1 (en) | 2021-09-08 |
WO2014156211A1 (ja) | 2014-10-02 |
US20160047350A1 (en) | 2016-02-18 |
US20160053695A1 (en) | 2016-02-25 |
US9644553B2 (en) | 2017-05-09 |
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