JP7380425B2 - 噴射制御装置 - Google Patents
噴射制御装置 Download PDFInfo
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- JP7380425B2 JP7380425B2 JP2020093307A JP2020093307A JP7380425B2 JP 7380425 B2 JP7380425 B2 JP 7380425B2 JP 2020093307 A JP2020093307 A JP 2020093307A JP 2020093307 A JP2020093307 A JP 2020093307A JP 7380425 B2 JP7380425 B2 JP 7380425B2
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- 238000002347 injection Methods 0.000 title claims description 98
- 239000007924 injection Substances 0.000 title claims description 98
- 238000012937 correction Methods 0.000 claims description 140
- 239000000446 fuel Substances 0.000 claims description 59
- 230000005856 abnormality Effects 0.000 claims description 15
- 238000002485 combustion reaction Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 description 12
- 230000001186 cumulative effect Effects 0.000 description 7
- 230000002159 abnormal effect Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
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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
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D41/221—Safety or indicating devices for abnormal conditions relating to the failure of actuators or electrically driven elements
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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
- F02D41/20—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
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
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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
-
- 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
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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
- F02D41/20—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
- F02D2041/2013—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 voltage source
-
- 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
- F02D2041/2024—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit the control switching a load after time-on and time-off pulses
- F02D2041/2027—Control of the current by pulse width modulation or duty cycle 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
- F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
- F02D2041/2034—Control of the current gradient
-
- 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
- F02D2041/2041—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit for controlling the current in the free-wheeling phase
-
- 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
- F02D41/20—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
- F02D2041/2062—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using information of the actual current value the current value is determined by simulation or estimation
-
- 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
-
- 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
- F02D41/24—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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (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5は、マイコン4が行う処理内容を概略的に示している。マイコン4は、S1において制御IC5により通電時間補正量ΔTiが正常に算出されたか否かを判定することで面積補正処理が正常に行われているか否かを判定する。マイコン4は、何らかの影響で通電時間補正量ΔTiの算出処理に異常を生じ、制御IC5により通電時間補正量ΔTiが正常に求められていなければ、S8において補正完了フラグをオフすることで、制御IC5による今後の面積補正処理を中止する。
本実施形態によれば、通電指令時間算出部10が今回以前の通電時間補正量ΔTiを用いて次回の指示TQの通電指令時間Tiを算出しているため、今回以前の通電時間補正量ΔTiの傾向を次回の指示TQの通電指令時間Tiに反映できる。
本発明は、前述した実施形態に限定されるものではなく、種々変形して実施することができ、その要旨を逸脱しない範囲で種々の実施形態に適用可能である。例えば以下に示す変形又は拡張が可能である。前述した複数の実施形態を必要に応じて組み合わせて構成しても良い。
Claims (2)
- 燃料噴射弁(2)を電流駆動して前記燃料噴射弁から燃料を噴射させる際に、前記燃料噴射弁に流れる電流の面積補正を実施して通電時間補正量(ΔTi)を算出する面積補正部(5d)と、
前記面積補正部から今回入力された通電時間補正量(ΔTi)を含んで今回以前の通電時間補正量(ΔTi)を平均化する補正量算出部(11)と、
内燃機関の状態を検出し定常運転状態であるか否かを判定する定常運転状態判定部と、
前記定常運転状態であるときの平均化された今回以前の噴射の通電時間補正量(ΔTi)を用いて次回以降の噴射の通電指令時間を補正する通電指令時間算出部(10)と、
を備える噴射制御装置。 - A/Fセンサを用いてA/F値を取得可能なA/F値取得部(12)と、
前記通電指令時間算出部により通電時間補正量(ΔTi)の補正を反映した噴射に応じた前記A/F値を前記A/F値取得部により取得し、当該取得したA/F値の目標A/F値からのずれに基づいて異常を判定する異常判定部(13)と、
を備える請求項1記載の噴射制御装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020093307A JP7380425B2 (ja) | 2020-05-28 | 2020-05-28 | 噴射制御装置 |
US17/330,764 US11448154B2 (en) | 2020-05-28 | 2021-05-26 | Injection control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2020093307A JP7380425B2 (ja) | 2020-05-28 | 2020-05-28 | 噴射制御装置 |
Publications (2)
Publication Number | Publication Date |
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JP2021188548A JP2021188548A (ja) | 2021-12-13 |
JP7380425B2 true JP7380425B2 (ja) | 2023-11-15 |
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JP2020093307A Active JP7380425B2 (ja) | 2020-05-28 | 2020-05-28 | 噴射制御装置 |
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US (1) | US11448154B2 (ja) |
JP (1) | JP7380425B2 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7367625B2 (ja) * | 2020-06-29 | 2023-10-24 | 株式会社デンソー | 噴射制御装置 |
JP7318594B2 (ja) * | 2020-06-29 | 2023-08-01 | 株式会社デンソー | 噴射制御装置 |
JP7298554B2 (ja) * | 2020-06-29 | 2023-06-27 | 株式会社デンソー | 噴射制御装置 |
JP7428094B2 (ja) * | 2020-07-16 | 2024-02-06 | 株式会社デンソー | 噴射制御装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3123955B2 (ja) | 1997-09-30 | 2001-01-15 | 熱産ヒート株式会社 | 高温ボルト締めヒータ |
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 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2512073Y2 (ja) * | 1990-03-28 | 1996-09-25 | マツダ株式会社 | エンジンの燃料噴射制御装置 |
JP3975491B2 (ja) * | 1996-06-18 | 2007-09-12 | 株式会社デンソー | 空燃比フィードバック制御系の異常診断装置 |
JP4110751B2 (ja) * | 2001-06-18 | 2008-07-02 | 株式会社日立製作所 | インジェクタ駆動制御装置 |
JP2010138918A (ja) | 2010-03-23 | 2010-06-24 | Hitachi Automotive Systems Ltd | 内燃機関の燃料噴射制御装置および燃料噴射制御方法 |
JP5851354B2 (ja) * | 2012-06-21 | 2016-02-03 | 日立オートモティブシステムズ株式会社 | 内燃機関の制御装置 |
US9453488B2 (en) * | 2013-10-29 | 2016-09-27 | Continental Automotive Systems, Inc. | Direct injection solenoid injector opening time detection |
DE102014203364B4 (de) * | 2014-02-25 | 2023-03-23 | Vitesco Technologies GmbH | Verfahren und Vorrichtung zum Betrieb eines Ventils, insbesondere für ein Speichereinspritzsystem |
JP6292070B2 (ja) | 2014-07-31 | 2018-03-14 | 株式会社デンソー | 燃料噴射制御装置 |
JP6327195B2 (ja) * | 2015-04-27 | 2018-05-23 | 株式会社デンソー | 制御装置 |
US10060374B2 (en) * | 2015-04-29 | 2018-08-28 | General Electric Company | Engine system and method |
JP7172753B2 (ja) | 2019-03-07 | 2022-11-16 | 株式会社デンソー | 噴射制御装置 |
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2020
- 2020-05-28 JP JP2020093307A patent/JP7380425B2/ja active Active
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2021
- 2021-05-26 US US17/330,764 patent/US11448154B2/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3123955B2 (ja) | 1997-09-30 | 2001-01-15 | 熱産ヒート株式会社 | 高温ボルト締めヒータ |
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 |
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JP2021188548A (ja) | 2021-12-13 |
US11448154B2 (en) | 2022-09-20 |
US20210372340A1 (en) | 2021-12-02 |
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