FR3106857B1 - Fuel detection system in a diesel engine injection circuit - Google Patents

Fuel detection system in a diesel engine injection circuit Download PDF

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Publication number
FR3106857B1
FR3106857B1 FR2000911A FR2000911A FR3106857B1 FR 3106857 B1 FR3106857 B1 FR 3106857B1 FR 2000911 A FR2000911 A FR 2000911A FR 2000911 A FR2000911 A FR 2000911A FR 3106857 B1 FR3106857 B1 FR 3106857B1
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FR
France
Prior art keywords
pump
injection circuit
diesel engine
integral term
detection system
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
FR2000911A
Other languages
French (fr)
Other versions
FR3106857A1 (en
Inventor
Nicolas Loubet
Nicolas Yvert
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
Original Assignee
Vitesco Technologies
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 Vitesco Technologies filed Critical Vitesco Technologies
Priority to FR2000911A priority Critical patent/FR3106857B1/en
Priority to PCT/EP2021/051921 priority patent/WO2021151977A1/en
Publication of FR3106857A1 publication Critical patent/FR3106857A1/en
Application granted granted Critical
Publication of FR3106857B1 publication Critical patent/FR3106857B1/en
Active legal-status Critical Current
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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
    • 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

Abstract

L’invention propose un système de détection de fuite de carburant depuis un circuit d’injection de carburant à haute pression de moteur diesel vers l’environnement, le circuit d’injection de carburant à haute pression comprenant :- une pompe, - au moins un injecteur, - un rail d’alimentation de chaque injecteur en sortie de la pompe, - un régulateur du débit de la pompe et- un contrôleur du régulateur de débit de la pompe, comprenant au moins un terme intégral, le système comprenant un calculateur configuré pour, lors d’une période d’injection stable du moteur diesel où le régulateur du débit de la pompe est actif, - surveiller la valeur du terme intégral du contrôleur du régulateur du débit de la pompe, et- détecter une fuite de carburant dans le circuit d’injection si la valeur du terme intégral est non nulle moyennant une tolérance prédéterminée pendant une durée supérieure à un seuil prédéterminé. Figure pour l’abrégé : Fig.1The invention provides a system for detecting fuel leakage from a diesel engine high pressure fuel injection circuit to the environment, the high pressure fuel injection circuit comprising:- a pump, - at least an injector, - a supply rail for each injector at the outlet of the pump, - a regulator of the flow rate of the pump and- a controller of the flow regulator of the pump, comprising at least one integral term, the system comprising a computer configured to, during a stable injection period of the diesel engine when the pump flow regulator is active, - monitor the value of the integral term of the controller of the pump flow regulator, and - detect a fuel leak in the injection circuit if the value of the integral term is non-zero with a predetermined tolerance for a duration greater than a predetermined threshold. Figure for abstract: Fig.1

FR2000911A 2020-01-30 2020-01-30 Fuel detection system in a diesel engine injection circuit Active FR3106857B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR2000911A FR3106857B1 (en) 2020-01-30 2020-01-30 Fuel detection system in a diesel engine injection circuit
PCT/EP2021/051921 WO2021151977A1 (en) 2020-01-30 2021-01-28 System for detecting fuel in an injection circuit of a diesel engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2000911A FR3106857B1 (en) 2020-01-30 2020-01-30 Fuel detection system in a diesel engine injection circuit
FR2000911 2020-01-30

Publications (2)

Publication Number Publication Date
FR3106857A1 FR3106857A1 (en) 2021-08-06
FR3106857B1 true FR3106857B1 (en) 2023-03-03

Family

ID=70008949

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2000911A Active FR3106857B1 (en) 2020-01-30 2020-01-30 Fuel detection system in a diesel engine injection circuit

Country Status (2)

Country Link
FR (1) FR3106857B1 (en)
WO (1) WO2021151977A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017130977A1 (en) * 2017-12-21 2019-06-27 Volkswagen Aktiengesellschaft Internal combustion engine with four cylinders and method for operating such an internal combustion engine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4525691B2 (en) * 2007-03-05 2010-08-18 株式会社デンソー Fuel injection pressure control device and fuel injection pressure control system
JP2010216370A (en) * 2009-03-17 2010-09-30 Denso Corp Fuel supply control device
EP2295774A1 (en) * 2009-08-18 2011-03-16 Delphi Technologies Holding S.à.r.l. Control method for a common rail fuel pump and apparatus for performing the same
JP5774521B2 (en) 2012-02-28 2015-09-09 株式会社デンソー Fuel leak detection device
US20150106040A1 (en) * 2013-10-16 2015-04-16 Caterpillar Inc. Diagnosing fault in common rail fuel system

Also Published As

Publication number Publication date
FR3106857A1 (en) 2021-08-06
WO2021151977A1 (en) 2021-08-05

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