FR3072424B1 - Procede de compensation de combustion degradee due a un ecart de pression de carburant reelle - Google Patents

Procede de compensation de combustion degradee due a un ecart de pression de carburant reelle Download PDF

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Publication number
FR3072424B1
FR3072424B1 FR1759649A FR1759649A FR3072424B1 FR 3072424 B1 FR3072424 B1 FR 3072424B1 FR 1759649 A FR1759649 A FR 1759649A FR 1759649 A FR1759649 A FR 1759649A FR 3072424 B1 FR3072424 B1 FR 3072424B1
Authority
FR
France
Prior art keywords
fuel
theoretical
main injection
fuel pressure
pressure
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.)
Active
Application number
FR1759649A
Other languages
English (en)
Other versions
FR3072424A1 (fr
Inventor
Jeremie Memain
Morgan Drouyer
Gregory Gauchais
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.)
Vitesco Technologies GmbH
Original Assignee
Continental Automotive GmbH
Continental Automotive France SAS
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 Continental Automotive GmbH, Continental Automotive France SAS filed Critical Continental Automotive GmbH
Priority to FR1759649A priority Critical patent/FR3072424B1/fr
Publication of FR3072424A1 publication Critical patent/FR3072424A1/fr
Application granted granted Critical
Publication of FR3072424B1 publication Critical patent/FR3072424B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
    • F02M63/0275—Arrangement of common rails
    • F02M63/028—Returnless common rail 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
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D41/3809—Common rail control systems
    • F02D41/3836—Controlling the fuel pressure
    • F02D41/3863—Controlling the fuel pressure by controlling the flow out of the common rail, e.g. using pressure relief valves
    • F02D41/3872—Controlling the fuel pressure by controlling the flow out of the common rail, e.g. using pressure relief valves characterised by leakage flow in 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
    • F02D41/40—Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
    • F02D41/402—Multiple injections
    • 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
    • F02D2200/0602—Fuel pressure
    • F02D2200/0604—Estimation of fuel pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2250/00—Engine control related to specific problems or objectives
    • F02D2250/31—Control of the fuel 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
    • F02D41/30—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
    • F02D41/402—Multiple injections
    • F02D41/403—Multiple injections with pilot injections
    • 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
    • F02D41/402—Multiple injections
    • F02D41/405—Multiple injections with post injections
    • 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

La présente invention concerne un procédé de décharge d'une pression de carburant dans une rampe commune d'injection de carburant d'un moteur thermique alimentée en carburant et étant étanche par rapport à un retour du carburant de la rampe vers le réservoir. Quand la pression de carburant réelle dans la rampe commune est supérieure d'un seuil de pression calibrable prédéterminé à la pression de consigne et qu'une demande d'au moins une injection principale théorique d'une quantité théorique prédéterminée de carburant est émise, l'injection principale théorique est divisée en au moins deux injections principales fractionnées (INJ1, INJ2) avec des quantités fractionnées de carburant respectives dont la somme est fonction de la quantité théorique de carburant afin d'étaler dans le temps l'injection principale ainsi divisée pour correspondre sensiblement au temps d'injection principale théorique.
FR1759649A 2017-10-16 2017-10-16 Procede de compensation de combustion degradee due a un ecart de pression de carburant reelle Active FR3072424B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1759649A FR3072424B1 (fr) 2017-10-16 2017-10-16 Procede de compensation de combustion degradee due a un ecart de pression de carburant reelle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1759649A FR3072424B1 (fr) 2017-10-16 2017-10-16 Procede de compensation de combustion degradee due a un ecart de pression de carburant reelle
FR1759649 2017-10-16

Publications (2)

Publication Number Publication Date
FR3072424A1 FR3072424A1 (fr) 2019-04-19
FR3072424B1 true FR3072424B1 (fr) 2022-04-08

Family

ID=60450902

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1759649A Active FR3072424B1 (fr) 2017-10-16 2017-10-16 Procede de compensation de combustion degradee due a un ecart de pression de carburant reelle

Country Status (1)

Country Link
FR (1) FR3072424B1 (fr)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4144375B2 (ja) * 2002-09-11 2008-09-03 株式会社デンソー 蓄圧式燃料噴射装置

Also Published As

Publication number Publication date
FR3072424A1 (fr) 2019-04-19

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Effective date: 20190419

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TP Transmission of property

Owner name: VITESCO TECHNOLOGIES, DE

Effective date: 20210309

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Effective date: 20220103

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