JP4747211B2 - 内燃機関の燃料噴射制御装置 - Google Patents
内燃機関の燃料噴射制御装置 Download PDFInfo
- Publication number
- JP4747211B2 JP4747211B2 JP2009147397A JP2009147397A JP4747211B2 JP 4747211 B2 JP4747211 B2 JP 4747211B2 JP 2009147397 A JP2009147397 A JP 2009147397A JP 2009147397 A JP2009147397 A JP 2009147397A JP 4747211 B2 JP4747211 B2 JP 4747211B2
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- injection
- fuel injection
- pressure
- amount
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/12—Introducing corrections for particular operating conditions for deceleration
- F02D41/123—Introducing corrections for particular operating conditions for deceleration the fuel injection being cut-off
-
- 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
-
- 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
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2425—Particular ways of programming the data
- F02D41/2429—Methods of calibrating or learning
- F02D41/2441—Methods of calibrating or learning characterised by the learning conditions
- F02D41/2448—Prohibition of learning
-
- 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
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2425—Particular ways of programming the data
- F02D41/2429—Methods of calibrating or learning
- F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
- F02D41/2464—Characteristics of actuators
- F02D41/2467—Characteristics of actuators for injectors
-
- 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
- F02D41/3809—Common rail control systems
- F02D41/3836—Controlling the fuel pressure
-
- 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
-
- 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
- F02D2200/06—Fuel or fuel supply system parameters
- F02D2200/0606—Fuel temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/31—Control of the fuel pressure
-
- 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
- F02D41/3809—Common rail control systems
- F02D41/3836—Controlling the fuel pressure
- F02D41/3845—Controlling the fuel pressure by controlling the flow into the common rail, e.g. the amount of fuel pumped
-
- 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
- F02D41/3809—Common rail control systems
- F02D41/3836—Controlling the fuel pressure
- F02D41/3863—Controlling the fuel pressure by controlling the flow out of the common rail, e.g. using pressure relief valves
-
- 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)
Description
DQLRN(n)=QLCMD(n)−QCLRN(n) ……(1)
2 ECU(制御手段、回転変動検出手段、補正量算出手段、補正手段、判定 温度設定手段、禁止手段)
3 エンジン
4 燃料噴射弁
10a 燃料調量弁(燃料噴射圧変更手段)
13 リリーフ弁(燃料噴射圧変更手段)
33 クランク角センサ(回転変動検出手段)
32 燃料温度センサ(燃料温度検出手段)
36 吸気温センサ(吸気温度検出手段)
PFOBJ1 第1目標燃圧(複数の所定の圧力)
PFOBJ2 第2目標燃圧(複数の所定の圧力)
PFOBJ3 第3目標燃圧(複数の所定の圧力)
PFOBJ4 第4目標燃圧(複数の所定の圧力)
PFOBJ5 第5目標燃圧(複数の所定の圧力)
QLCMD 微少指令燃料噴射量(所定の微少量)
DTRQ トルク増加量(検出された内燃機関の回転変動)
QCMD 指令燃料噴射量(制御入力)
QCLRN 学習値(補正量)
PFOBJ 目標燃圧(微少量噴射に用いられる所定の圧力)
TJUD 判定温度
TFUEL 燃料温度(検出された燃料の温度)
Claims (2)
- 内燃機関の燃焼室で燃焼する燃料を噴射する燃料噴射弁と、
前記燃料噴射弁から噴射される燃料の燃料噴射圧を変更する燃料噴射圧変更手段と、
前記内燃機関の出力を得るための燃料の噴射を停止するフューエルカット運転中に、前記燃料噴射圧変更手段を制御することにより、燃料噴射圧を互いに異なる複数の所定の圧力のいずれかに変更した状態で、前記燃料噴射弁を制御することにより、所定の微少量の燃料を噴射する微少量噴射を、前記複数の所定の圧力のそれぞれに対して実行する制御手段と、
前記微少量噴射の実行中における前記内燃機関の回転変動を検出する回転変動検出手段と、
当該検出された内燃機関の回転変動を用いて、前記燃料噴射弁から噴射される燃料噴射量を制御するための制御入力を補正するための補正量を、前記複数の所定の圧力のそれぞれに対して算出する補正量算出手段と、
当該算出された補正量に応じて、前記制御入力を補正する補正手段と、
燃料の温度を検出する燃料温度検出手段と、
前記微少量噴射に用いられる前記所定の圧力が高いほど、判定温度をより低くなるように設定する判定温度設定手段と、
前記検出された燃料の温度が前記設定された判定温度よりも高いときに、当該判定温度に対応する所定の圧力を用いた前記微少量噴射を禁止する禁止手段と、
を備えることを特徴とする内燃機関の燃料噴射制御装置。 - 前記制御手段は、前記フューエルカット運転中、前記所定の圧力を用いた前記微少量噴射が前記禁止手段によって禁止されたときには、前記禁止手段により禁止されないような、当該所定の圧力よりも低い所定の圧力に燃料噴射圧を変更した状態で、前記微少量噴射を実行することを特徴とする、請求項1に記載の内燃機関の燃料噴射制御装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009147397A JP4747211B2 (ja) | 2009-06-22 | 2009-06-22 | 内燃機関の燃料噴射制御装置 |
EP10162198A EP2273091B1 (en) | 2009-06-22 | 2010-05-06 | Fuel injection control system for internal combustion engine and control method therefor |
AT10162198T ATE547607T1 (de) | 2009-06-22 | 2010-05-06 | System zur steuerung der kraftstoffeinspritzung für einen verbrennungsmotor und steuerungsverfahren dafür |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009147397A JP4747211B2 (ja) | 2009-06-22 | 2009-06-22 | 内燃機関の燃料噴射制御装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011001929A JP2011001929A (ja) | 2011-01-06 |
JP4747211B2 true JP4747211B2 (ja) | 2011-08-17 |
Family
ID=42289307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009147397A Expired - Fee Related JP4747211B2 (ja) | 2009-06-22 | 2009-06-22 | 内燃機関の燃料噴射制御装置 |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2273091B1 (ja) |
JP (1) | JP4747211B2 (ja) |
AT (1) | ATE547607T1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011140921A (ja) * | 2010-01-08 | 2011-07-21 | Bosch Corp | 蓄圧式燃料噴射装置 |
JP5912984B2 (ja) * | 2012-08-09 | 2016-04-27 | 株式会社豊田自動織機 | 内燃機関の燃料噴射量学習方法 |
JP6056273B2 (ja) * | 2012-08-29 | 2017-01-11 | マツダ株式会社 | 火花点火式直噴エンジン |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0814089A (ja) * | 1994-06-30 | 1996-01-16 | Nissan Motor Co Ltd | エンジンの空燃比制御装置 |
JP4096924B2 (ja) * | 2003-10-29 | 2008-06-04 | 株式会社デンソー | 内燃機関用噴射量制御装置 |
JP4548256B2 (ja) * | 2005-07-25 | 2010-09-22 | トヨタ自動車株式会社 | 内燃機関の制御装置 |
WO2008090033A1 (de) * | 2007-01-24 | 2008-07-31 | Continental Automotive Gmbh | Verfahren zum regeln einer kraftstoffzuführeinrichtung für eine brennkraftmaschine |
JP4428405B2 (ja) * | 2007-06-12 | 2010-03-10 | 株式会社デンソー | 燃料噴射制御装置及びエンジン制御システム |
DE102007060006B3 (de) * | 2007-12-13 | 2009-07-09 | Continental Automotive Gmbh | Kraftstoffdruckregelsystem |
-
2009
- 2009-06-22 JP JP2009147397A patent/JP4747211B2/ja not_active Expired - Fee Related
-
2010
- 2010-05-06 EP EP10162198A patent/EP2273091B1/en not_active Not-in-force
- 2010-05-06 AT AT10162198T patent/ATE547607T1/de active
Also Published As
Publication number | Publication date |
---|---|
EP2273091A1 (en) | 2011-01-12 |
JP2011001929A (ja) | 2011-01-06 |
ATE547607T1 (de) | 2012-03-15 |
EP2273091B1 (en) | 2012-02-29 |
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