JP2022010838A - 噴射制御装置 - Google Patents
噴射制御装置 Download PDFInfo
- Publication number
- JP2022010838A JP2022010838A JP2020111598A JP2020111598A JP2022010838A JP 2022010838 A JP2022010838 A JP 2022010838A JP 2020111598 A JP2020111598 A JP 2020111598A JP 2020111598 A JP2020111598 A JP 2020111598A JP 2022010838 A JP2022010838 A JP 2022010838A
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- JP
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- Prior art keywords
- fuel injection
- current
- value
- learning
- 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.)
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- 238000002347 injection Methods 0.000 title claims abstract description 146
- 239000007924 injection Substances 0.000 title claims abstract description 146
- 239000000446 fuel Substances 0.000 claims abstract description 158
- 238000012937 correction Methods 0.000 claims abstract description 148
- 238000002485 combustion reaction Methods 0.000 claims abstract description 10
- 230000005856 abnormality Effects 0.000 claims description 37
- 238000001514 detection method Methods 0.000 claims description 11
- 239000000243 solution Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- 230000006870 function Effects 0.000 description 8
- 238000004364 calculation method Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000000520 microinjection Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
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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
- F02D41/30—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
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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
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
-
- 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
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
-
- 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
- F02D41/22—Safety or indicating devices for abnormal 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
- F02D41/24—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
- F02D41/2454—Learning of the air-fuel ratio control
-
- 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
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
- F02D2041/2003—Output circuits, e.g. for controlling currents in command coils using means for creating a boost voltage, i.e. generation or use of a voltage higher than the battery voltage, e.g. to speed up injector opening
- F02D2041/2006—Output circuits, e.g. for controlling currents in command coils using means for creating a boost voltage, i.e. generation or use of a voltage higher than the battery voltage, e.g. to speed up injector opening by using a boost capacitor
-
- 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
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
- F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
- F02D2041/2058—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using information of the actual current value
-
- 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
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D2041/224—Diagnosis of the fuel system
-
- 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)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims (3)
- 内燃機関に燃料を供給する燃料噴射弁(2)を電流駆動することにより、燃料噴射を制御する噴射制御装置であって、
前記燃料噴射弁の燃料噴射量の指令値を出力する燃料噴射量指令値出力部(14)と、
前記内燃機関の検出空燃比と目標空燃比との差に応じたフィードバック補正値及びA/F学習により得られた学習値に基づいてA/F補正量を算出し、前記燃料噴射量の指令値を補正する燃料噴射量補正部(16)と、
前記燃料噴射量指令値に応じた通電電流積算値を得るような通電時間と通電電流値との関係を示した通電電流プロファイルに基づいて前記燃料噴射弁に対する電流制御を実行する制御部(5)とを備え、
前記制御部は、前記通電電流プロファイルの積算電流と、電流検出部の検出した前記燃料噴射弁に流れる電流の積算電流との差に基づいて積算電流値を同等とするように通電時間の面積補正量(ΔTi)を算出して補正を行う電流面積補正を行うように構成されていると共に、
前記面積補正量及び前記A/F補正量に基づいて、前記A/F学習を停止する学習制御部(17)を備えている噴射制御装置。 - 前記学習制御部は、前記面積補正量が所定値以上であり、且つ前記A/F補正量が閾値未満のリーン側にあるときに、前記A/F学習を停止する請求項1記載の燃料噴射装置。
- 前記面積補正量が異常判定値以上のときに、面積補正異常を判定する面積補正異常判定部(15)を備え、
前記所定値は、前記異常判定値より小さい値である請求項2記載の燃料噴射装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020111598A JP7306339B2 (ja) | 2020-06-29 | 2020-06-29 | 噴射制御装置 |
US17/333,207 US11326545B2 (en) | 2020-06-29 | 2021-05-28 | Injection control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020111598A JP7306339B2 (ja) | 2020-06-29 | 2020-06-29 | 噴射制御装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2022010838A true JP2022010838A (ja) | 2022-01-17 |
JP7306339B2 JP7306339B2 (ja) | 2023-07-11 |
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JP2020111598A Active JP7306339B2 (ja) | 2020-06-29 | 2020-06-29 | 噴射制御装置 |
Country Status (2)
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US (1) | US11326545B2 (ja) |
JP (1) | JP7306339B2 (ja) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004053317A1 (ja) * | 2002-12-10 | 2004-06-24 | Mikuni Corporation | 燃料噴射制御方法及び燃料噴射制御装置 |
JP2008038784A (ja) * | 2006-08-08 | 2008-02-21 | Denso Corp | 内燃機関の気筒別空燃比制御装置 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5754357B2 (ja) * | 2011-11-18 | 2015-07-29 | 株式会社デンソー | 内燃機関の燃料噴射制御装置 |
EP3113346B1 (en) * | 2014-02-27 | 2020-03-18 | Hitachi Automotive Systems, Ltd. | Internal combustion engine controller |
JP6292070B2 (ja) | 2014-07-31 | 2018-03-14 | 株式会社デンソー | 燃料噴射制御装置 |
JP6314733B2 (ja) * | 2014-08-06 | 2018-04-25 | 株式会社デンソー | 内燃機関の燃料噴射制御装置 |
JP7032229B2 (ja) * | 2018-05-08 | 2022-03-08 | 株式会社Soken | 空燃比検出装置及び空燃比検出方法 |
DE112019002301T5 (de) * | 2018-07-20 | 2021-02-18 | Hitachi Automotive Systems, Ltd. | Kraftstoffeinspritzungs-Steuervorrichtung |
JP7172753B2 (ja) | 2019-03-07 | 2022-11-16 | 株式会社デンソー | 噴射制御装置 |
JP2020159284A (ja) * | 2019-03-27 | 2020-10-01 | 株式会社ミクニ | 燃焼異常検出装置、燃焼異常検出方法およびプログラム |
-
2020
- 2020-06-29 JP JP2020111598A patent/JP7306339B2/ja active Active
-
2021
- 2021-05-28 US US17/333,207 patent/US11326545B2/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004053317A1 (ja) * | 2002-12-10 | 2004-06-24 | Mikuni Corporation | 燃料噴射制御方法及び燃料噴射制御装置 |
JP2008038784A (ja) * | 2006-08-08 | 2008-02-21 | Denso Corp | 内燃機関の気筒別空燃比制御装置 |
Also Published As
Publication number | Publication date |
---|---|
US20210404411A1 (en) | 2021-12-30 |
US11326545B2 (en) | 2022-05-10 |
JP7306339B2 (ja) | 2023-07-11 |
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