FR3084113B1 - METHOD FOR DETERMINING THE FUEL PRESSURE IN A COMMON INJECTION RAIL OF AN INTERNAL COMBUSTION ENGINE - Google Patents
METHOD FOR DETERMINING THE FUEL PRESSURE IN A COMMON INJECTION RAIL OF AN INTERNAL COMBUSTION ENGINE Download PDFInfo
- Publication number
- FR3084113B1 FR3084113B1 FR1856701A FR1856701A FR3084113B1 FR 3084113 B1 FR3084113 B1 FR 3084113B1 FR 1856701 A FR1856701 A FR 1856701A FR 1856701 A FR1856701 A FR 1856701A FR 3084113 B1 FR3084113 B1 FR 3084113B1
- Authority
- FR
- France
- Prior art keywords
- fuel
- determined
- determining
- pressure
- rail
- 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
Links
- 239000000446 fuel Substances 0.000 title abstract 10
- 238000002347 injection Methods 0.000 title abstract 3
- 239000007924 injection Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 3
- 238000002485 combustion reaction Methods 0.000 title abstract 2
Classifications
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- 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
- F02D41/3836—Controlling the fuel pressure
- F02D41/3845—Controlling the fuel pressure by controlling the flow into the common rail, e.g. the amount of fuel pumped
-
- 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
- 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
- F02D2250/14—Timing of measurement, e.g. synchronisation of measurements to the engine cycle
-
- 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
-
- 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
- F02M63/0012—Valves
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
- F02M63/005—Pressure relief valves
- F02M63/0052—Pressure relief valves with means for adjusting the opening pressure, e.g. electrically controlled
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Procédé de détermination de la pression du carburant dans un rail commun d'injection d'un moteur à combustion interne alimenté en carburant par une pompe comprenant une soupape d'admission digitale et un piston entraîné par une came excentrique, le rail étant muni d'un moyen de détermination de la pression du carburant dans le rail commun, comprenant les étapes suivantes : • lorsque le moteur du véhicule est en fonction et qu'aucune injection de carburant n'est en cours, • on détermine la position angulaire de la came excentrique correspondant à l'instant auquel commander la fermeture de la soupape d'admission digitale pour obtenir un ratio de commande de la pompe à carburant égal à la variable prédéfinie, • on commande la fermeture de la soupape lorsque la position angulaire déterminée de la came excentrique est atteinte, et on détermine si une variation de pression a lieu par l'intermédiaire du moyen de détermination de la pression du carburant dans le rail commun, • si une telle variation n'est pas déterminée, la variable est incrémentée d'une deuxième valeur prédéfinie, et le procédé reprend à la détermination de la position angulaire, • si une telle variation est déterminée, on détermine le volume de carburant comprimé puis on détermine la pression effective à laquelle la pompe a comprimé le carburant admis dans le rail commun en fonction de la compressibilité du carburant.Method for determining the fuel pressure in a common injection rail of an internal combustion engine supplied with fuel by a pump comprising a digital intake valve and a piston driven by an eccentric cam, the rail being provided with means for determining the fuel pressure in the common rail, comprising the following steps: • when the vehicle engine is running and no fuel injection is in progress, • the angular position of the cam is determined eccentric corresponding to the instant at which to close the digital intake valve to obtain a fuel pump control ratio equal to the predefined variable, • the valve is closed when the determined angular position of the cam eccentric is reached, and it is determined whether a pressure variation takes place via the means for determining the fuel pressure in the common rail, • if such a var iation is not determined, the variable is incremented by a second predefined value, and the process resumes at the determination of the angular position, • if such a variation is determined, the volume of compressed fuel is determined then the pressure is determined effective at which the pump compressed the fuel admitted into the common rail as a function of the compressibility of the fuel.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1856701A FR3084113B1 (en) | 2018-07-19 | 2018-07-19 | METHOD FOR DETERMINING THE FUEL PRESSURE IN A COMMON INJECTION RAIL OF AN INTERNAL COMBUSTION ENGINE |
PCT/EP2019/069332 WO2020016341A1 (en) | 2018-07-19 | 2019-07-18 | Method for determining fuel pressure in a common-rail injection rail of an internal combustion engine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1856701 | 2018-07-19 | ||
FR1856701A FR3084113B1 (en) | 2018-07-19 | 2018-07-19 | METHOD FOR DETERMINING THE FUEL PRESSURE IN A COMMON INJECTION RAIL OF AN INTERNAL COMBUSTION ENGINE |
Publications (2)
Publication Number | Publication Date |
---|---|
FR3084113A1 FR3084113A1 (en) | 2020-01-24 |
FR3084113B1 true FR3084113B1 (en) | 2020-06-19 |
Family
ID=63491777
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1856701A Active FR3084113B1 (en) | 2018-07-19 | 2018-07-19 | METHOD FOR DETERMINING THE FUEL PRESSURE IN A COMMON INJECTION RAIL OF AN INTERNAL COMBUSTION ENGINE |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR3084113B1 (en) |
WO (1) | WO2020016341A1 (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8375922B2 (en) * | 2009-04-15 | 2013-02-19 | GM Global Technology Operations LLC | Control of fuel pump by quantifying performance |
US8220322B2 (en) * | 2009-04-30 | 2012-07-17 | GM Global Technology Operations LLC | Fuel pressure sensor performance diagnostic systems and methods based on hydrostatics in a fuel system |
JP2014084754A (en) | 2012-10-22 | 2014-05-12 | Bosch Corp | Rail pressure sensor output characteristic diagnostic method, and common rail-type fuel injection control device |
DE102013201576A1 (en) * | 2013-01-31 | 2014-07-31 | Robert Bosch Gmbh | Method for checking the plausibility of a rail pressure sensor value |
DE102016214007A1 (en) * | 2016-07-29 | 2018-02-01 | Robert Bosch Gmbh | Method for determining a pressure in a high-pressure accumulator of an internal combustion engine |
-
2018
- 2018-07-19 FR FR1856701A patent/FR3084113B1/en active Active
-
2019
- 2019-07-18 WO PCT/EP2019/069332 patent/WO2020016341A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
FR3084113A1 (en) | 2020-01-24 |
WO2020016341A1 (en) | 2020-01-23 |
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Year of fee payment: 2 |
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PLSC | Publication of the preliminary search report |
Effective date: 20200124 |
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Year of fee payment: 3 |
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TP | Transmission of property |
Owner name: VITESCO TECHNOLOGIES, DE Effective date: 20210309 |
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Year of fee payment: 4 |
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CA | Change of address |
Effective date: 20220103 |
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