JP7367614B2 - 噴射制御装置 - Google Patents
噴射制御装置 Download PDFInfo
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- JP7367614B2 JP7367614B2 JP2020093308A JP2020093308A JP7367614B2 JP 7367614 B2 JP7367614 B2 JP 7367614B2 JP 2020093308 A JP2020093308 A JP 2020093308A JP 2020093308 A JP2020093308 A JP 2020093308A JP 7367614 B2 JP7367614 B2 JP 7367614B2
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- 238000002347 injection Methods 0.000 title claims description 118
- 239000007924 injection Substances 0.000 title claims description 118
- 239000000446 fuel Substances 0.000 claims description 102
- 238000006243 chemical reaction Methods 0.000 claims description 32
- 238000002485 combustion reaction Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 10
- 230000008859 change Effects 0.000 description 9
- 238000001514 detection method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000001186 cumulative effect Effects 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
- 230000004044 response Effects 0.000 description 4
- 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
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000008569 process Effects 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
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
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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
- F02D41/24—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
-
- 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
- F02D41/2409—Addressing techniques specially adapted therefor
- F02D41/2422—Selective use of one or more tables
-
- 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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
-
- 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
- F02D2041/2058—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
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/021—Engine temperature
-
- 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
- F02D2200/0602—Fuel pressure
-
- 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
- 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
- F02D2200/0608—Estimation of fuel temperature
-
- 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)
- Combined Controls Of Internal Combustion Engines (AREA)
Description
図7から図10は、第2実施形態の説明図を示す。マイコン4は、その内部のメモリ4bにプログラムなどの各種情報を記憶している。このため、メモリ4bの記憶容量に制約条件を生じ、αマップ12の補正係数αの記録点数も制限されることがある。このような場合、通常の領域(以下、通常領域)と噴射量に段差を生じる領域(以下、段差領域と称す)とでαマップ12a、12bを切り替えると良い。
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当該噴射の度に変換係数を設定する変換係数設定部(11)と、
前記燃料噴射弁の駆動時の電流をモニタして通電電流の傾きを検出し、傾きに応じて今回の駆動時の通電時間を延ばすように補正するように構成され、前記燃料噴射弁の駆動電流が目標ピーク電流に到達/未到達に拘わらず前記変換係数を用いた面積補正を前記噴射の度に実施して通電時間補正量(ΔTi)を算出する面積補正部(5d)と、
を備える噴射制御装置。 - 噴射量に段差を生じる時間領域に適用した通電指示時間と前記変換係数との対応を示す第1マップ(12b)、及び、前記段差を生じる時間領域以外の時間領域に適用した通電指示時間と前記変換係数との対応を示す第2マップ(12a)、を備え、
前記変換係数設定部は、前記通電指示時間に応じて前記第1マップ及び前記第2マップを切り替えて前記変換係数を設定する請求項1記載の噴射制御装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020093308A JP7367614B2 (ja) | 2020-05-28 | 2020-05-28 | 噴射制御装置 |
US17/331,212 US11384704B2 (en) | 2020-05-28 | 2021-05-26 | Injection control device |
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JP2020093308A JP7367614B2 (ja) | 2020-05-28 | 2020-05-28 | 噴射制御装置 |
Publications (2)
Publication Number | Publication Date |
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JP2021188549A JP2021188549A (ja) | 2021-12-13 |
JP7367614B2 true JP7367614B2 (ja) | 2023-10-24 |
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JP2020093308A Active JP7367614B2 (ja) | 2020-05-28 | 2020-05-28 | 噴射制御装置 |
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US (1) | US11384704B2 (ja) |
JP (1) | JP7367614B2 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP7367625B2 (ja) * | 2020-06-29 | 2023-10-24 | 株式会社デンソー | 噴射制御装置 |
JP7347347B2 (ja) * | 2020-06-29 | 2023-09-20 | 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 (6)
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 |
JP2010048214A (ja) | 2008-08-25 | 2010-03-04 | Toyota Motor Corp | 燃料噴射制御装置 |
JP2014159772A (ja) | 2013-02-20 | 2014-09-04 | Hitachi Automotive Systems Ltd | 内燃機関の制御装置 |
JP2016033343A (ja) | 2014-07-31 | 2016-03-10 | 株式会社デンソー | 燃料噴射制御装置 |
JP2019056378A (ja) | 2014-11-19 | 2019-04-11 | 日立オートモティブシステムズ株式会社 | 燃料噴射装置の駆動装置 |
JP2019090339A (ja) | 2017-11-10 | 2019-06-13 | 株式会社デンソー | 燃料噴射制御装置 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001098985A (ja) * | 1999-09-30 | 2001-04-10 | Mazda Motor Corp | 火花点火式直噴エンジンの燃料制御装置及び燃料制御方法 |
JP2004218571A (ja) * | 2003-01-16 | 2004-08-05 | Aisan Ind Co Ltd | エンジンの燃料供給装置 |
JP4643550B2 (ja) * | 2006-12-12 | 2011-03-02 | トヨタ自動車株式会社 | 空燃比制御装置 |
JP4429336B2 (ja) * | 2007-06-15 | 2010-03-10 | トヨタ自動車株式会社 | 空燃比制御装置 |
JP2010084613A (ja) | 2008-09-30 | 2010-04-15 | Honda Motor Co Ltd | 燃料噴射装置 |
JP4884507B2 (ja) * | 2009-09-25 | 2012-02-29 | 三菱電機株式会社 | エンジンの燃料噴射制御装置 |
JP6349608B2 (ja) * | 2014-04-23 | 2018-07-04 | 株式会社ケーヒン | エンジン制御システム |
JP2018184861A (ja) | 2017-04-25 | 2018-11-22 | 日立オートモティブシステムズ株式会社 | 内燃機関の燃料噴射制御装置 |
JP7172753B2 (ja) | 2019-03-07 | 2022-11-16 | 株式会社デンソー | 噴射制御装置 |
JP7131479B2 (ja) * | 2019-05-21 | 2022-09-06 | トヨタ自動車株式会社 | ハイブリッド車両および、その制御方法 |
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2020
- 2020-05-28 JP JP2020093308A patent/JP7367614B2/ja active Active
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2021
- 2021-05-26 US US17/331,212 patent/US11384704B2/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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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 |
JP2010048214A (ja) | 2008-08-25 | 2010-03-04 | Toyota Motor Corp | 燃料噴射制御装置 |
JP2014159772A (ja) | 2013-02-20 | 2014-09-04 | Hitachi Automotive Systems Ltd | 内燃機関の制御装置 |
JP2016033343A (ja) | 2014-07-31 | 2016-03-10 | 株式会社デンソー | 燃料噴射制御装置 |
JP2019056378A (ja) | 2014-11-19 | 2019-04-11 | 日立オートモティブシステムズ株式会社 | 燃料噴射装置の駆動装置 |
JP2019090339A (ja) | 2017-11-10 | 2019-06-13 | 株式会社デンソー | 燃料噴射制御装置 |
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US11384704B2 (en) | 2022-07-12 |
US20210372338A1 (en) | 2021-12-02 |
JP2021188549A (ja) | 2021-12-13 |
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