FR2945077B1 - DEVICE FOR CONTROLLING FUEL INJECTION - Google Patents

DEVICE FOR CONTROLLING FUEL INJECTION Download PDF

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Publication number
FR2945077B1
FR2945077B1 FR1053218A FR1053218A FR2945077B1 FR 2945077 B1 FR2945077 B1 FR 2945077B1 FR 1053218 A FR1053218 A FR 1053218A FR 1053218 A FR1053218 A FR 1053218A FR 2945077 B1 FR2945077 B1 FR 2945077B1
Authority
FR
France
Prior art keywords
learning
variation
injection
fuel injection
injected quantity
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
Application number
FR1053218A
Other languages
French (fr)
Other versions
FR2945077A1 (en
Inventor
Yuuki Tarusawa
Takenobu Yamamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Original Assignee
Denso Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Denso Corp filed Critical Denso Corp
Publication of FR2945077A1 publication Critical patent/FR2945077A1/en
Application granted granted Critical
Publication of FR2945077B1 publication Critical patent/FR2945077B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F02D41/14—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
    • F02D41/02—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
    • F02D41/2441—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
    • 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
    • F02D2200/0616—Actual fuel mass or fuel injection amount determined by estimation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
    • F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
    • F02D35/023—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the cylinder 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
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/021—Introducing corrections for particular conditions exterior to the engine
    • F02D41/0215—Introducing corrections for particular conditions exterior to the engine in relation with elements of the transmission
    • F02D41/022—Introducing corrections for particular conditions exterior to the engine in relation with elements of the transmission in relation with the clutch status
    • 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

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)

Abstract

Dispositif de commande d'injection de carburant, comprenant des moyens de commande d'injection (40, S400), des moyens d'estimation de la quantité injectée (40, S402, S404), des moyens de calcul de variation (40, S402, S404) et des moyens de détermination de fin d'opération d'apprentissage (40, S414, S416). Les moyens de commande d'injection font exécuter une injection d'apprentissage (210) par une soupape d'injection de carburant (30) lorsqu'une condition d'apprentissage est satisfaite, ladite injection d'apprentissage étant exécutée une pluralité de fois. Les moyens d'estimation de la quantité injectée estiment la quantité injectée réelle (Qn) de chacune des injections d'apprentissage. Les moyens de calcul de variation calculent la variation (σn) de la quantité injectée réelle. Les moyens de détermination de fin d'opération d'apprentissage décident si les moyens de commande d'injection doivent mettre fin ou non à l'injection d'apprentissage, en fonction de la variation et en fonction de la précision souhaitée de la variation.Fuel injection control device, comprising injection control means (40, S400), means for estimating the injected quantity (40, S402, S404), variation calculating means (40, S402 , S404) and means for determining the end of the learning operation (40, S414, S416). The injection control means performs a learning injection (210) by a fuel injection valve (30) when a learning condition is satisfied, said learning injection being performed a plurality of times. The means for estimating the injected quantity estimate the actual injected quantity (Qn) of each of the training injections. The variation calculation means calculate the variation (σn) of the actual injected quantity. The means for determining the end of the learning operation decide whether the injection control means should end the learning injection or not, as a function of the variation and as a function of the desired precision of the variation.

FR1053218A 2009-04-30 2010-04-27 DEVICE FOR CONTROLLING FUEL INJECTION Expired - Fee Related FR2945077B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009110928A JP2010261334A (en) 2009-04-30 2009-04-30 Fuel injection control device
JP2009110928 2009-04-30

Publications (2)

Publication Number Publication Date
FR2945077A1 FR2945077A1 (en) 2010-11-05
FR2945077B1 true FR2945077B1 (en) 2018-11-16

Family

ID=42813878

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1053218A Expired - Fee Related FR2945077B1 (en) 2009-04-30 2010-04-27 DEVICE FOR CONTROLLING FUEL INJECTION

Country Status (3)

Country Link
JP (1) JP2010261334A (en)
DE (1) DE102010016736B4 (en)
FR (1) FR2945077B1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5825068B2 (en) * 2011-11-18 2015-12-02 いすゞ自動車株式会社 Abnormality determination method for internal combustion engine fuel injection and internal combustion engine
WO2013111306A1 (en) * 2012-01-26 2013-08-01 トヨタ自動車株式会社 Control device for internal combustion engine
JP5912984B2 (en) * 2012-08-09 2016-04-27 株式会社豊田自動織機 Fuel injection amount learning method for internal combustion engine
JP5732443B2 (en) 2012-09-18 2015-06-10 株式会社豊田自動織機 Fuel injection control device
JP6204204B2 (en) * 2014-01-20 2017-09-27 中国電力株式会社 Boiler fuel input amount determination device
JP6699960B2 (en) * 2015-12-24 2020-05-27 ロベルト・ボッシュ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツングＲｏｂｅｒｔ Ｂｏｓｃｈ Ｇｍｂｈ Fuel injection valve control device and fuel injection valve control method
JP6544292B2 (en) * 2016-05-06 2019-07-17 株式会社デンソー Fuel injection control device
DE102018219028B4 (en) * 2018-11-08 2020-06-25 Continental Automotive Gmbh Method for operating an internal combustion engine by performing an injection quantity correction
JP2020084851A (en) * 2018-11-20 2020-06-04 株式会社デンソー Fuel injection control device of internal combustion engine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10240476A1 (en) 2002-09-03 2004-03-04 Robert Bosch Gmbh Method of monitoring operation of motor vehicle internal combustion engine involves monitoring cylinder operating parameters over given number of engine rotations
JP2005146947A (en) 2003-11-13 2005-06-09 Denso Corp Device for controlling injection volume in internal combustion engine
DE102006006303B3 (en) 2006-02-10 2007-06-28 Siemens Ag Process to estimate the exact amount of fuel injected to a single automotive cylinder in a single operation
JP4858345B2 (en) * 2007-07-25 2012-01-18 株式会社デンソー Fuel injection control device and fuel injection system using the same
JP4710888B2 (en) * 2007-08-23 2011-06-29 株式会社デンソー Diesel engine fuel injection control device and diesel engine fuel injection amount learning method
JP4501974B2 (en) * 2007-08-31 2010-07-14 株式会社デンソー Fuel injection control device for internal combustion engine
JP4345861B2 (en) 2007-09-20 2009-10-14 株式会社デンソー Fuel injection control device and fuel injection system using the same

Also Published As

Publication number Publication date
DE102010016736B4 (en) 2021-10-14
DE102010016736A1 (en) 2010-11-04
JP2010261334A (en) 2010-11-18
FR2945077A1 (en) 2010-11-05

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