JP7435333B2 - 噴射制御装置 - Google Patents
噴射制御装置 Download PDFInfo
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- JP7435333B2 JP7435333B2 JP2020122092A JP2020122092A JP7435333B2 JP 7435333 B2 JP7435333 B2 JP 7435333B2 JP 2020122092 A JP2020122092 A JP 2020122092A JP 2020122092 A JP2020122092 A JP 2020122092A JP 7435333 B2 JP7435333 B2 JP 7435333B2
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- 238000002347 injection Methods 0.000 title claims description 107
- 239000007924 injection Substances 0.000 title claims description 107
- 239000000446 fuel Substances 0.000 claims description 108
- 238000012937 correction Methods 0.000 claims description 92
- 238000001514 detection method Methods 0.000 claims description 37
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 230000002596 correlated effect Effects 0.000 claims description 4
- 238000012886 linear function Methods 0.000 claims description 2
- 230000006870 function Effects 0.000 description 14
- 238000000034 method Methods 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000004364 calculation method Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification 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
- 230000001276 controlling effect Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000520 microinjection Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000011160 research Methods 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
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/004—Arrangements for controlling delivery; Arrangements for controlling the spray area comprising sensors for monitoring the delivery, e.g. by displaying the sensed value or generating an alarm
- B05B12/006—Pressure or flow rate sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/004—Arrangements for controlling delivery; Arrangements for controlling the spray area comprising sensors for monitoring the delivery, e.g. by displaying the sensed value or generating an alarm
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/10—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to temperature or viscosity of liquid or other fluent material discharged
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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
- 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
-
- 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
- F02D2041/2058—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
- F02D2041/2065—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit the control being related to the coil 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
- F02D2200/021—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
- F02D2200/0614—Actual fuel mass or fuel injection amount
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Fuel-Injection Apparatus (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
Description
Claims (6)
- 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、
前記燃料噴射弁に流れる電流値を検出する電流検出部(7)と、
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(PI)に基づき、該通電電流プロファイルの積算電流値と、前記電流検出部の検出した電流値の積算電流値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実行する電流面積補正制御部(13)とを備え、
前記電流面積補正制御部は、前記燃料噴射弁に対する通電開始から複数の基準電流値(I1、I2)に夫々到達するまでの到達時間に基づいて、前記積算電流値を求めるように構成されていると共に、
前記燃料噴射弁に対する通電開始から複数の基準電流値に夫々到達するまでの基準到達時間を記憶部(14)に記憶し、実駆動時の該燃料噴射弁に対する通電開始から前記各基準電流値に夫々到達するまでの検出到達時間と前記基準到達時間との差に基づいて、前記基準電流値を補正する基準電流値補正部を備える噴射制御装置。 - 前記記憶部に記憶される基準到達時間は、前記燃料噴射弁の一つ以上の特定温度条件における到達時間である請求項1記載の噴射制御装置。
- 前記記憶部に記憶される基準到達時間は、前記燃料噴射弁の常温時における到達時間、及び、それ以外の特定温度条件における到達時間を含んでいる請求項1又は2記載の噴射制御装置。
- 前記燃料噴射弁の温度に相関のある温度情報を検出するセンサ(9)を備え、前記燃料噴射弁の温度条件の入力に、該センサの検出値が用いられる請求項2又は3記載の噴射制御装置。
- 前記燃料噴射弁の温度に相関のある温度情報を検出するセンサ(9)を備え、
前記基準電流値補正部は、前記センサの検出値を所定の温度条件に換算するための温度補正係数を任意の温度条件における前記検出到達時間と前記基準到達時間との差に乗算することにより、任意の温度条件における前記検出到達時間と前記基準到達時間との差を前記所定の温度条件の時の値に換算するように補正し、その補正後の前記検出到達時間と前記基準到達時間との差に基づいて前記基準電流値を補正し、
前記温度補正係数は、前記温度に対して負の傾きを持つ一次関数の関係にある係数として定められている請求項1に記載の噴射制御装置。 - 前記基準電流値補正部は、ノミナル状態の基準到達時間を前記記憶部に記憶し、検出到達時間と前記基準到達時間との差に基づいて、前記電流値を補正するための補正係数を算出する請求項1から5のいずれか一項に記載の噴射制御装置。
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JP2020122092A JP7435333B2 (ja) | 2020-07-16 | 2020-07-16 | 噴射制御装置 |
US17/375,984 US11674467B2 (en) | 2020-07-16 | 2021-07-14 | Injection control device |
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JP2020122092A JP7435333B2 (ja) | 2020-07-16 | 2020-07-16 | 噴射制御装置 |
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JP2022018760A JP2022018760A (ja) | 2022-01-27 |
JP7435333B2 true JP7435333B2 (ja) | 2024-02-21 |
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Citations (4)
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 |
JP2015151871A (ja) | 2014-02-10 | 2015-08-24 | 株式会社デンソー | 燃料噴射制御装置 |
WO2016021122A1 (ja) | 2014-08-06 | 2016-02-11 | 株式会社デンソー | 内燃機関の燃料噴射制御装置 |
WO2016174820A1 (ja) | 2015-04-27 | 2016-11-03 | 株式会社デンソー | 制御装置 |
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JP6292070B2 (ja) | 2014-07-31 | 2018-03-14 | 株式会社デンソー | 燃料噴射制御装置 |
JP6493334B2 (ja) * | 2015-11-30 | 2019-04-03 | 株式会社デンソー | 内燃機関の燃料噴射制御装置 |
WO2019207903A1 (ja) * | 2018-04-27 | 2019-10-31 | 日立オートモティブシステムズ株式会社 | 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 |
JP7428094B2 (ja) * | 2020-07-16 | 2024-02-06 | 株式会社デンソー | 噴射制御装置 |
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- 2021-07-14 US US17/375,984 patent/US11674467B2/en active Active
Patent Citations (4)
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 |
JP2015151871A (ja) | 2014-02-10 | 2015-08-24 | 株式会社デンソー | 燃料噴射制御装置 |
WO2016021122A1 (ja) | 2014-08-06 | 2016-02-11 | 株式会社デンソー | 内燃機関の燃料噴射制御装置 |
WO2016174820A1 (ja) | 2015-04-27 | 2016-11-03 | 株式会社デンソー | 制御装置 |
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US11674467B2 (en) | 2023-06-13 |
US20220016658A1 (en) | 2022-01-20 |
JP2022018760A (ja) | 2022-01-27 |
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