Nothing Special   »   [go: up one dir, main page]

FR3120921B1 - Method for diagnosing faulty operation of a vehicle engine - Google Patents

Method for diagnosing faulty operation of a vehicle engine Download PDF

Info

Publication number
FR3120921B1
FR3120921B1 FR2102614A FR2102614A FR3120921B1 FR 3120921 B1 FR3120921 B1 FR 3120921B1 FR 2102614 A FR2102614 A FR 2102614A FR 2102614 A FR2102614 A FR 2102614A FR 3120921 B1 FR3120921 B1 FR 3120921B1
Authority
FR
France
Prior art keywords
fuel
engine
vehicle
vehicle engine
combustion chamber
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
FR2102614A
Other languages
French (fr)
Other versions
FR3120921A1 (en
Inventor
Djamel Abbad
Benoit Verbeke
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.)
NEW H POWERTRAIN HOLDING, S.L.U., ES
Original Assignee
Renault 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 Renault SAS filed Critical Renault SAS
Priority to FR2102614A priority Critical patent/FR3120921B1/en
Publication of FR3120921A1 publication Critical patent/FR3120921A1/en
Application granted granted Critical
Publication of FR3120921B1 publication Critical patent/FR3120921B1/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
    • 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
    • F02D41/22—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
    • 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
    • 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
    • F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
    • F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
    • F02D41/064—Introducing corrections for particular operating conditions for engine starting or warming up for starting at cold start

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

L’invention se rapporte à un procédé de diagnostic d’un fonctionnement erroné d’un moteur thermique de véhicule, comprenant au moins un cylindre (1) définissant une chambre de combustion (2) dans laquelle débouchent un injecteur (7) de carburant et un capteur de pression de cylindre (8). Selon l’invention, le procédé comprend les étapes suivantes :-une étape de calcul d’une première quantité de carburant injectée dans la chambre de combustion pendant une durée donnée à partir des valeurs de pression de cylindre mesurées par le capteur de pression, sur un point de fonctionnement identifié du moteur,-une étape de comparaison entre ladite première quantité de carburant et une valeur de quantité de carburant normalement attendue sur ledit point de fonctionnement identifié pendant la même durée, - une étape de prise en compte instantanée dans le véhicule d’un écart supérieur ou égal à un premier seuil entre ladite première quantité de carburant et ladite quantité normalement attendue, traduisant un fonctionnement erroné du moteur. Figure pour l’abrégé : Fig.2The invention relates to a method for diagnosing an erroneous operation of a heat engine of a vehicle, comprising at least one cylinder (1) defining a combustion chamber (2) into which a fuel injector (7) and a cylinder pressure sensor (8). According to the invention, the method comprises the following steps:-a step of calculating a first quantity of fuel injected into the combustion chamber for a given duration from the cylinder pressure values measured by the pressure sensor, on an identified operating point of the engine, - a step of comparing said first quantity of fuel and a value of quantity of fuel normally expected on said identified operating point for the same duration, - a step of instantaneous taking into account in the vehicle a difference greater than or equal to a first threshold between said first quantity of fuel and said quantity normally expected, reflecting an erroneous operation of the engine. Figure for abstract: Fig.2

FR2102614A 2021-03-16 2021-03-16 Method for diagnosing faulty operation of a vehicle engine Active FR3120921B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2102614A FR3120921B1 (en) 2021-03-16 2021-03-16 Method for diagnosing faulty operation of a vehicle engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2102614A FR3120921B1 (en) 2021-03-16 2021-03-16 Method for diagnosing faulty operation of a vehicle engine
FR2102614 2021-03-16

Publications (2)

Publication Number Publication Date
FR3120921A1 FR3120921A1 (en) 2022-09-23
FR3120921B1 true FR3120921B1 (en) 2023-08-04

Family

ID=75690525

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2102614A Active FR3120921B1 (en) 2021-03-16 2021-03-16 Method for diagnosing faulty operation of a vehicle engine

Country Status (1)

Country Link
FR (1) FR3120921B1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2901848B1 (en) * 2006-05-30 2008-09-19 Peugeot Citroen Automobiles Sa METHOD AND DEVICE FOR CORRECTING THE RATE OF PILOT FUEL INJECTION IN A DIRECT INJECTION DIESEL ENGINE OF THE COMMON RAIL TYPE, AND MOTOR COMPRISING SUCH A DEVICE
FR2975136B1 (en) * 2011-05-13 2014-11-21 Continental Automotive France METHOD FOR DETERMINING THE FUEL QUANTITY EXCEEDING AN INJECTOR
DE102011086063A1 (en) * 2011-11-10 2013-05-16 Robert Bosch Gmbh Method for operating internal combustion engine of motor vehicle, involves specifying target torque for operating internal combustion engine, and determining actual torque on basis of signals of cylinder pressure sensor
FR3085723B1 (en) * 2018-09-07 2021-05-28 Renault Sas COMBUSTION REGULATION PROCESS IN A DIESEL ENGINE WITH HOMOGENOUS OR NEAR-HOMOGENOUS COMBUSTION

Also Published As

Publication number Publication date
FR3120921A1 (en) 2022-09-23

Similar Documents

Publication Publication Date Title
US10337461B2 (en) Method and apparatus for diagnosing a water injection into a combustion chamber of an internal combustion engine
US7793538B2 (en) Apparatus for diagnosing abnormal operation of pressure difference detection apparatus of internal combustion engine exhaust system
EP2189642B1 (en) Fuel property detector for internal combustion engine
US4277830A (en) Diagnosis of engine turbocharger performance
US20130133748A1 (en) Method and device for determining the actual start of injection of a piezo fuel injection valve
JP2018168824A (en) Leak detection device
US10113495B2 (en) Exhaust gas recirculation device for internal combustion engine
CN103370520B (en) Device for controlling internal combustion engine
FR2799236A1 (en) PROCESS FOR DIAGNOSING ACTUATORS AND SENSORS FROM THE FORMATION OF THE MIXTURE FEEDING AN INTERNAL COMBUSTION ENGINE
FR3074524A1 (en) SYSTEM AND METHOD FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE EQUIPPED WITH A SELECTIVE CATALYSIS-TYPE EXHAUST GAS POST-PROCESSING SYSTEM
JPH0925851A (en) Diagnostic device for exhaust reflux device of internal combustion engine
FR3120921B1 (en) Method for diagnosing faulty operation of a vehicle engine
CN106574530A (en) Engine control apparatus
JP2018204486A (en) Throttle valve control device for internal combustion engine
EP2179149A1 (en) Method and device for diagnosing the operating state of an exhaust line of an internal combustion engine
EP2699778B1 (en) Fault diagnosis method of supercharged motor and supercharged motor
CN108350826B (en) Control device for internal combustion engine
EP2430298B1 (en) Estimation of the nitrogen oxide (nox) concentration in an internal combustion engine
JP2010127102A (en) Abnormality determining device of cylinder internal pressure sensor
US4311043A (en) Method and apparatus for detecting air in fuel
KR20140010327A (en) Method and system for performing selective engine parameter analysis
WO2012156015A1 (en) Method for determining the amount of fuel leaving an injector
CN115485469A (en) Apparatus, method, system, and technique for misfire detection using an engine speed sensor
JPH08246941A (en) Failure diagnosing device for cylinder internal pressure sensor for internal combustion engine
KR102473710B1 (en) Method and apparatus for fuel amount training and compensation in GDI engine

Legal Events

Date Code Title Description
PLFP Fee payment

Year of fee payment: 2

PLSC Publication of the preliminary search report

Effective date: 20220923

PLFP Fee payment

Year of fee payment: 3

CA Change of address

Effective date: 20230512

PLFP Fee payment

Year of fee payment: 4

TP Transmission of property

Owner name: NEW H POWERTRAIN HOLDING, S.L.U., ES

Effective date: 20240705