FR3098551B1 - diagnostic method for a high pressure injection system - Google Patents

diagnostic method for a high pressure injection system Download PDF

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Publication number
FR3098551B1
FR3098551B1 FR1907802A FR1907802A FR3098551B1 FR 3098551 B1 FR3098551 B1 FR 3098551B1 FR 1907802 A FR1907802 A FR 1907802A FR 1907802 A FR1907802 A FR 1907802A FR 3098551 B1 FR3098551 B1 FR 3098551B1
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FR
France
Prior art keywords
injection rail
injection
fuel
rail
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
FR1907802A
Other languages
French (fr)
Other versions
FR3098551A1 (en
Inventor
Jérémie Memain
Tet Kong Brian Chia
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
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 filed Critical Continental Automotive GmbH
Priority to FR1907802A priority Critical patent/FR3098551B1/en
Publication of FR3098551A1 publication Critical patent/FR3098551A1/en
Application granted granted Critical
Publication of FR3098551B1 publication Critical patent/FR3098551B1/en
Active 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
    • F02D41/22—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
    • 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
    • F02D41/222—Safety or indicating devices for abnormal conditions relating to the failure of sensors or parameter detection devices
    • 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
    • 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
    • F02D41/406—Electrically controlling a diesel injection pump
    • 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
    • F02D41/222—Safety or indicating devices for abnormal conditions relating to the failure of sensors or parameter detection devices
    • F02D2041/223—Diagnosis of fuel pressure sensors
    • 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
    • F02D2041/225—Leakage detection
    • 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
    • F02D2250/04—Fuel pressure pulsation in common rails
    • 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)
  • Fuel-Injection Apparatus (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

Procédé de diagnostic d’un système d’injection comportant :- une rampe d’injection munie d’un capteur de pression, et- une pompe haute pressionledit procédé comportant les trois étapes suivantes après détection d’un défaut de fonctionnement du système d’injection : - a) isolation de la rampe d’injection et détermination d’une éventuelle variation de pression dans la rampe d’injection, - b) sortie de carburant de la rampe d’injection mais sans alimenter la rampe d’injection en carburant et détermination d’une éventuelle variation de pression dans la rampe d’injection, - c) entrée de carburant dans la rampe d’injection mais sans laisser sortir du carburant de la rampe d’injection et détermination d’une éventuelle variation de pression dans la rampe d’injection, et - d) une quatrième étape de détermination d’un diagnostic en fonction des variations de pression constatées lors des trois étapes précédentes selon des schémas prédéterminés. Figure de l’abrégé : Figure 2Method for diagnosing an injection system comprising:- an injection rail fitted with a pressure sensor, and- a high-pressure pump, said method comprising the following three steps after detection of an operating fault in the injection: - a) isolation of the injection rail and determination of any pressure variation in the injection rail, - b) fuel exit from the injection rail but without supplying the injection rail with fuel and determination of any pressure variation in the injection rail, - c) fuel entering the injection rail but without allowing fuel to leave the injection rail and determining any pressure variation in the injection rail, and - d) a fourth step of determining a diagnosis according to the pressure variations observed during the three preceding steps according to predetermined diagrams. Abstract Figure: Figure 2

FR1907802A 2019-07-11 2019-07-11 diagnostic method for a high pressure injection system Active FR3098551B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1907802A FR3098551B1 (en) 2019-07-11 2019-07-11 diagnostic method for a high pressure injection system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1907802 2019-07-11
FR1907802A FR3098551B1 (en) 2019-07-11 2019-07-11 diagnostic method for a high pressure injection system

Publications (2)

Publication Number Publication Date
FR3098551A1 FR3098551A1 (en) 2021-01-15
FR3098551B1 true FR3098551B1 (en) 2022-05-13

Family

ID=68138517

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1907802A Active FR3098551B1 (en) 2019-07-11 2019-07-11 diagnostic method for a high pressure injection system

Country Status (1)

Country Link
FR (1) FR3098551B1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3345933B2 (en) * 1993-01-19 2002-11-18 株式会社デンソー Accumulator type fuel injection device
JP3339326B2 (en) * 1996-09-20 2002-10-28 トヨタ自動車株式会社 Fuel supply device
US6076504A (en) * 1998-03-02 2000-06-20 Cummins Engine Company, Inc. Apparatus for diagnosing failures and fault conditions in a fuel system of an internal combustion engine
US7392792B2 (en) * 2006-08-21 2008-07-01 Caterpillar Inc. System for dynamically detecting fuel leakage
DE102016119047B4 (en) * 2016-10-07 2018-04-26 Denso Corporation Method for quickly determining a fuel quantity change
US10189466B2 (en) * 2016-11-30 2019-01-29 Ford Global Technologies, Llc Identifying in-range fuel pressure sensor error

Also Published As

Publication number Publication date
FR3098551A1 (en) 2021-01-15

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Owner name: VITESCO TECHNOLOGIES, DE

Effective date: 20210629

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Effective date: 20220103

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