EP2748450B1 - Système à rampe commune d'injection de carburant, moteur à combustion interne, et dispositif et procédé de commande et/ou de régulation d'un moteur à combustion interne - Google Patents

Système à rampe commune d'injection de carburant, moteur à combustion interne, et dispositif et procédé de commande et/ou de régulation d'un moteur à combustion interne Download PDF

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Publication number
EP2748450B1
EP2748450B1 EP12746284.4A EP12746284A EP2748450B1 EP 2748450 B1 EP2748450 B1 EP 2748450B1 EP 12746284 A EP12746284 A EP 12746284A EP 2748450 B1 EP2748450 B1 EP 2748450B1
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EP
European Patent Office
Prior art keywords
memory unit
logic
pressure
injector
acr
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EP12746284.4A
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German (de)
English (en)
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EP2748450A1 (fr
Inventor
Manuel Boog
Gerald Fast
Robby Gerbeth
Michael Walder
Ralf Speetzen
Jörg REMELE
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Rolls Royce Solutions GmbH
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MTU Friedrichshafen GmbH
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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
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • F02M55/025—Common rails
    • 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

Definitions

  • the invention relates to a common rail system for an internal combustion engine according to the preamble of claim 1.
  • a rail is connected via a high pressure guide for fuel injector for injecting the fuel into a working space of an internal combustion engine, wherein the high pressure guide has a high pressure component with a single memory having a pressure measuring device.
  • a pressure determination on an individual memory in a common rail system is possible, for example, in a particularly reliable manner.
  • a system is for example in DE 10 2009 002 793 A1 or in DE 10 2006 034 515 B3 the applicant has been described; The advantages of a common rail system with individual storage come into play.
  • injection start and injection end are regulated as parameters of an electronic device.
  • injection start and injection end are regulated as parameters of an electronic device.
  • the problem arises that there is a time offset between the start of energization of the injector, the needle stroke of the injector and the actual start of injection. The same applies to the injection end.
  • An inaccuracy in the control of the injection start and the injection end ultimately leads to an inaccuracy concerning the amount of fuel supplied to the internal combustion engine.
  • an aforementioned concept can lead to inaccuracies, for example due to injection behavior that varies with the life of the injectors.
  • the invention begins, whose task is to develop a common rail system of the type mentioned.
  • a detection and evaluation of injector sizes with individual memory should be possible in an improved manner.
  • this should be possible in the case of a pressure measuring device.
  • this should also be possible in the case of an aging or an interchanged injector.
  • the object concerning the common rail system is achieved with a common rail system of the type mentioned, in which the features of the characterizing part of claim 1 are provided according to the invention.
  • the pressure measuring device is coupled to a local logic and memory unit which is designed to locally evaluate and store injector data and / or rail data.
  • the invention is based on the consideration that the systems described so far in the prior art of the type described above can still be improved with central electronics. On the one hand, this applies to internal combustion engines with a comparatively small number of cylinders of perhaps 4 to 8 or 10 cylinders. In that case, it has indeed proven to be cost-effective-already locally-at each or every cylinder, to provide a logic and memory unit with a pressure measuring device which is designed, in particular, to locally evaluate and store data of an injector. Moreover, however, the concept of the invention may also be advantageous for engines with high numbers of cylinders, since thereby a more effective data function and safer evaluation or assignment of evaluated data to a particular cylinder is possible. Overall, the concept of the invention makes it possible to store individual data of a high-pressure component such as an injector or a single memory and / or the rail by means of the decentralized electronics thus realized and to carry out an evaluation already locally at the location of the data generation.
  • a high-pressure component such as an injector or a single memory and /
  • individual data such as manufacturer information, acceptance data, settings or other injector-individual data as well as diagnostic data for an injector can be decentrally recorded and stored or already evaluated.
  • the backup functionality for data can be adopted locally, which has advantages in a loss of data in the central electronics.
  • the invention provides a method of the type mentioned, according to the invention in the Characteristics of the characterizing part of claim 15 are provided.
  • the pressure of the individual memory is measured via a pressure measuring device on the individual memory immediately after or before a hydraulic resistance of the high-pressure line and evaluated in a local logic and memory unit, wherein additionally only selected data is given to a bus to the central electronics.
  • the local logic and memory unit can already have an injector model for model-based injector control.
  • an evaluation of injector data can already be carried out locally.
  • the local logic and memory unit also has a diagnostic model for model-based diagnosis and / or evaluation of injector data. This may include, for example, parity equations, observer or parameter estimation techniques.
  • the pressure measuring device is formed in the form of a strain sensor.
  • the expansion sensor can be particularly preferably formed in the form of a strain gauge.
  • a strain gauge is preferably arranged on the outside of the single memory, wherein the individual memory, a hydraulic resistance is arranged upstream or downstream of the integration directly into the high-pressure line.
  • the memory unit can be separated from the logic unit. This has the advantage that different or differently designed storage units can be available for a logic system of locally wedged local electronics in combination with central electronics. In particular, it has proved to be advantageous that, when the logic unit and the memory unit are separated, the memory unit is designed to remain on a high-pressure component.
  • the aforementioned development has proven to be advantageous for the case of a high pressure component in the form of an injector. However, this measure can also prove to be advantageous for a high pressure component in the form of a single memory or a rail.
  • identification data and information and / or diagnostic data relevant to the high-pressure component are always carried along with the high-pressure component and are available; this in a particularly advantageous manner in the memory is replaced with the high-pressure component and can be connected to the local logic unit.
  • the replaceable local memory unit can thus be coupled to the logic system, as it were, with the relevant data for the high-pressure component, such as in the form of an electronic thumbprint.
  • diagnostic data such as aging data, current behavior or the like with a replaced or substitute high-pressure component are available.
  • Fig. 1 shows by way of example a substantially analogous to the aforementioned DE 10 2006 034 515 B3 trained common rail system 100 with an electronically controlled internal combustion engine 1.
  • the common rail system 100 comprises a low-pressure pump 2 for fuel delivery from a fuel tank 3, a suction throttle 4 for determining a volume flow, a high pressure pump 5 to promote the fuel with pressure increase initially in a rail 6.
  • the fuel is further supplied from the rail 6 in a provided for each cylinder of the internal combustion engine 1 single memory 7 for temporarily storing the prestressed fuel and finally into an injector 8 for Injecting the fuel into the cylinder or the combustion chamber of the internal combustion engine 1 further promoted.
  • the fuel in the individual memory 7 is sufficiently biased to ensure sufficient injection into the combustion chamber of the internal combustion engine 1.
  • a feedback of noise in the rail 6 is attenuated with appropriate design of the feed line from the rail 6 to the individual memory 7, d. H. the connecting line from the rail 6 to the individual memory 7 has a correspondingly high hydraulic resistance.
  • This system is controlled by an electronic control unit (ADEC or ECU) of central electronics 9 (with a central logic 11) as well as by a distributed local electronics 12.
  • a locally distributed local electronics 12 comprises a number of locally-at the place of data formation formed logic and memory units ACR, AE, AI which are each connected to a respective sensor 10, 20, 30 directly on site.
  • a local measuring device namely here a rail pressure sensor 10 and a single-reservoir pressure sensor 20 and an optional injector pressure sensor 30, each having a local logic and memory unit ACR, AE and optionally AI distributed decentrally local electronics 12 coupled - namely a rail logic and memory unit ACR and a single storage and injector logic and storage unit AE, AI.
  • a local logic and memory unit ACR, AE optionally AI distributed decentrally local electronics 12 coupled - namely a rail logic and memory unit ACR and a single storage and injector logic and storage unit AE, AI.
  • AI only one can be provided, so that one of both is optional.
  • the present embodiment provides only the single memory logic and memory unit AE, so that the in Fig. 1 shown injector logic and memory unit AI is to be understood as an option.
  • the logic and memory units ACR, AE are each designed to locally evaluate and store measurement data of the common rail system 100.
  • this is concretely the pressure data of a rail pressure pCR on the rail 6 and pressure data of a single accumulator pressure pE on the individual accumulator 7.
  • the evaluated measurement data A (pE) and A (pCR) are respectively output from the output of the local logic and storage units AE, ACR to the electronic control unit ( ADEC or ECU) of the central electronics 9 with the central logic 11 via the input 9.1 forwarded.
  • pressure signal A (pl) of the injector 8 already evaluated by a local logic and memory unit AI to the data bus 13, i. from the output of the local logic and storage units AI the electronic control unit (ADEC or ECU) of the central electronics 9 with the central logic 11 via its input 9.1 forward.
  • the local logic and memory unit AE is arranged integrally with the individual accumulator pressure sensor 20 in the form of a strain gauge on the single accumulator 7.
  • the individual memory 7 may also be formed with the injector 8 in a single housing.
  • the single-reservoir pressure sensor Provide 20 in the form of a strain gauge directly with a local logic and memory unit AE integrated design on the individual memory 7 of the injector.
  • the local logic and storage unit ACR for the rail 6 with the rail pressure sensor 10 is integrated on the rail 6.
  • FIG. 1 Illustrated exemplary embodiment follows a general system, as shown schematically as a block diagram in FIG Fig. 2 is shown.
  • the common rail system 100 provides for an internal combustion engine 1 a combined control of the central electronics 9 and a distributed distributed local electronics 12 before.
  • the distributed distributed local electronics 12 is integrated in a construction of a number of measuring devices M1, M2 ... Mi and a number of directly with the measuring devices in an integrated form accommodated logic and memory units A1 / S1, A2 / S2 ... Ai / Si formed.
  • the measuring device M1, M2 is a pressure measuring device with an integrated memory and logic unit A1 / S1, A2 / S2 for measuring and evaluating an individual accumulator pressure pE and a rail pressure pCR, as described with reference to FIG Fig. 1 explained and work there with AE, ACR are called.
  • the further measuring devices Mi may be of a different type, for example comprising a temperature measuring device or the like, and may likewise each be integrated with a local logic and memory unit Ai / Si.
  • a measuring device M1, M2 to Mi is designed to perform a measurement on the common-rail system 100, for example on a single memory (7 in Fig.1 ), which is listed here as component B1 or on a rail (6 in Fig. 1 ) which is listed here as component B2 or another component Bi of the common rail system 100.
  • a local logic and memory unit A1 / S1, A2 / is present in each case directly at the location of the measuring device M1, M2... S2 ... Ai / Si integrated with the measuring device.
  • the logic and memory unit A1 / S1, A2 / S2... Ai / Si is in each case already capable of evaluating and storing a measurement signal supplied by each of the measuring devices M1, M2 to Mi.
  • diagnostic data D can be distributed individually for each component B, decentralized detected and stored in a memory Si. Particularly in the event of an error, a last set of diagnostic data can be provided in a memory Si -which is designed as a ring memory.
  • a data logger function L over the operating time of a component Bi can be provided in a comparatively simple manner.
  • a injector pressure sensor 30 is additionally or alternatively provided for the individual accumulator pressure sensor 20, which is very similar to a previously discussed local logic and memory unit AE for the individual memory 7 or a local logic and memory unit ACR for the rail 6 read can be.
  • a local logic and memory unit AI can be provided for the injector and the pressure sensor 30 provided on the injector, in the form of a strain gauge. Their interpretation can basically be done on the same principle as for the logic and memory unit AE and ACR.
  • the logic and memory unit AE and / or AI has a memory unit S and a logic unit A, wherein the memory unit S can be separated from the logic unit A.
  • the memory unit S is provided for remaining on the injector or individual memory.
  • the memory unit S of the logic and memory unit AI can be exchanged with the injector 8 and the strain gauge 30 or the memory unit S of the logic and memory unit AE can be exchanged with the individual memory 7 and the strain gauge 20.
  • This may prove necessary in the context of aging of the injector 8 and / or individual memory 7.
  • Similar replacement processes as in the case of an injector 8 can thus take place when an individual accumulator 7 is aging by exchanging the individual accumulator 7 with pressure sensor 20 and accumulator S.
  • a similar replacement process can also be carried out for the rail 6 with pressure sensor 10 and memory S relating to the logic and memory unit ACR; this time by separating the memory S from the logic unit A of the logic and memory unit ACR.
  • a central electronics 9 and the locally distributed local electronics 12-for example, a logic and memory unit AI, AE or ACR with the central logic 11-- takes place in such a way that during operation of the common rail system 100 measurement data how the pressure profile at an injector 8 or at a single memory 7 to the central electronics 9 are passed under evaluation by the logic unit A, d. H. in evaluated form A (pI), A (pE), A (pCR).
  • the corresponding data or data relevant to the pressure history in the memory unit S of the high pressure component - e.g. stored in a memory unit S of the logic and memory unit AE and ACR and AI.
  • a high pressure component e.g. an injector 8 or a single memory 7 exchanged or set to another location, for example to another cylinder of the internal combustion engine
  • this high pressure component takes the relevant relevant for the injection process diagnostic data in the exchanged with memory unit S with. This also applies to a newly used high pressure component.
  • the logic system of locally distributed local electronics 12 and central electronics 9 thus also control and regulating aging-related developments descriptive, characteristic of the high-pressure component, individual measurement data available and can be used to control and regulate the overall system.
  • a time signal given by the central electronic unit 9 to the locally distributed local electronics 12 for initiating an injection process can also take place when high-pressure components are exchanged so that this is matched to the optionally individual properties of the injector 8 or the individual accumulator 7; whereby the individual characteristics can influence the pressure course.
  • the so implemented distributed distributed local electronics 12 from measuring device M1, M2 to Mi and local logic and memory unit A1 / S1, A2 / S2 ... Ai / Si for each of the components Bi has the advantage that comparatively short sensor lines between a sensor the measuring device Mi and a local logic and memory unit Ai / Si possible are.
  • This allows z. B. a high sampling frequency by the local logic and memory unit - namely in Fig.1 the AE, ACR-, which are here with A1 / S1, A2 / S2 designated, nevertheless good signal quality.
  • a reduction in the signal quality (signal-to-noise ratio) due to a longer wiring harness is thus avoided.
  • the present system also allows on the output side of the electronic control unit of the central electronics 9 with the central logic 11 a the same principle following realization of a distributed distributed local electronics 12.
  • This can for example be realized for a power-determining signal vE, the first in a local logic and memory unit Aj / Sj is processed and then supplied via an actuator Mj the component system block Bi.
  • a logic and memory unit Ai / Si, Aj / Sj a corresponding calculation model are stored with which a model-based block control, for. B. injector control or a corresponding diagnostic method is possible.
  • a model-based block control for. B. injector control or a corresponding diagnostic method is possible.
  • the implementation of parity equations, observer systems and parameter estimation methods are conceivable.
  • Signal-based diagnostic methods such as frequency analyzes or the like can also be implemented on the basis of the comparatively small sensor and actuator lines.
  • Rail system 100 to the internal combustion engine 1.
  • the requirement of a precise knowledge of a crank angle, for example for an injector 8, a single memory 7 or a rail 6 is of lower priority than heretofore.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Claims (18)

  1. Système à rampe commune d'injection de carburant (100) destiné à un moteur à combustion interne (1), comportant :
    - une rampe (6) de carburant et un injecteur (8) relié en communication fluidique, par l'intermédiaire d'une conduite haute pression, pour l'injection du carburant dans une chambre de travail du moteur à combustion interne (1), dans lequel la conduite haute pression présente un composant haute pression muni d'un accumulateur individuel (7), et
    - la conduite haute pression et/ou la rampe (6) présente un dispositif manométrique (10, 20, 30), caractérisé en ce que
    - le dispositif manométrique est couplé à une unité logique et à mémoire locale (AE, ACR, AI) d'une électronique locale (12), répartie de manière décentralisée, qui est configurée de manière à évaluer localement et à mémoriser des données de mesure du dispositif manométrique, notamment de données d'injecteur et/ou de données de rampe, et
    - le dispositif manométrique est relié, par l'intermédiaire d'un bus, à l'unité électronique centrale (9), avec interposition de l'unité logique et à mémoire locale (AE, ACR, AI), et l'unité logique et à mémoire locale (AE, ACR, AI) est conçue, en combinaison avec l'électronique centrale (9), pour commander et/ou réguler le système à rampe commune d'injection de carburant (100) destiné au moteur à combustion interne (1).
  2. Système à rampe commune d'injection de carburant (100) selon la revendication 1, caractérisé en ce que le dispositif manométrique comporte un certain nombre de capteurs de pression (10, 20, 30), dans lequel une unité logique et à mémoire locale (AE, ACR, AI) respective est associée à un capteur respectif (10, 20, 30) et ce nombre d'unités logiques et à mémoire locales est relié par l'intermédiaire d'un bus de données (13) à l'électronique centrale (9).
  3. Système à rampe commune d'injection de carburant (100) selon la revendication 1 ou 2, caractérisé en ce que l'unité logique et à mémoire locale (AE, ACR, AI) comporte un accumulateur annulaire qui est conçu pour garantir l'obtention de manière permanente, avant la survenue d'un défaut, notamment jusqu'à un déblocage faisant suite à ladite survenue d'un défaut.
  4. Système à rampe commune d'injection de carburant (100) selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu'au moins une première unité logique et à mémoire locale (AE, AI) prévoit un modèle d'injecteur destiné à une régulation à base de modèle de l'injecteur et/ou en ce qu'une deuxième unité logique et à mémoire locale (ACR) prévoit un modèle de rampe destiné à une régulation de la rampe à base de modèle.
  5. Système à rampe commune d'injection de carburant (100) selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'une unité logique et à mémoire locale (AE, ACR, AI) prévoit un modèle de diagnostic destiné à effectuer un diagnostic à base de modèle et/ou à évaluer des données de mesure, notamment d'une mémoire individuelle (7), d'un injecteur (8) et/ou d'une rampe (6).
  6. Système à rampe commune d'injection de carburant (100) selon la revendication 5, caractérisé en ce que le modèle de diagnostic contient un ou plusieurs processus constitutifs qui sont sélectionnés dans le groupe constitué de processus de diagnostic à base de signaux ou de modèles, notamment des équations de parité, des processus d'observation ou des processus d'estimation de paramètres.
  7. Système à rampe commune d'injection de carburant (100) selon l'une quelconque des revendications 1 à 6, caractérisé en ce que l'unité logique et à mémoire locale (AE, ACR, AI) est réalisée pour mettre en oeuvre un processus d'évaluation et/ou de diagnostic à base de signal, notamment une analyse de fréquence d'un signal de mesure.
  8. Système à rampe commune d'injection de carburant (100) selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'un capteur de pression (10, 20, 30) est réalisé sous la forme d'un capteur d'allongement, notamment sous la forme d'une jauge de contrainte.
  9. Système à rampe commune d'injection de carburant (100) selon la revendication 8, caractérisé en ce qu'un premier capteur de pression (AE) est disposé sur une face extérieure d'une paroi d'un accumulateur individuel (7) et/ou
    en ce qu'un deuxième capteur de pression est disposé sur la face extérieure d'une paroi d'un injecteur (8), et/ou
    en ce qu'un troisième capteur de pression (ACR) est disposé sur la face extérieure d'une paroi de la rampe (6), et plus particulièrement, dans lequel une résistance hydraulique est disposée immédiatement en aval ou en amont de l'accumulateur individuel (7) afin qu'elle soit intégrée dans la conduite haute pression.
  10. Système à rampe commune d'injection de carburant (100) selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le composant haute pression est réalisé sous la forme d'un injecteur (8) ou d'un accumulateur individuel (7) ou d'un injecteur (8) auquel est intégré un accumulateur individuel (7).
  11. Système à rampe commune d'injection de carburant (100) selon l'une quelconque des revendications 1 à 10, caractérisé en ce que l'unité logique et à mémoire locale (AE, ACR, AI) comporte une unité logique (A, Ai, Aj) et une unité à mémoire (S, Si, Sj), dans lequel l'unité à mémoire (S, Si, Sj) peut être séparée de l'unité logique (A, Ai, Aj).
  12. Système à rampe commune d'injection de carburant (100) selon la revendication 11, caractérisé en ce que l'unité à mémoire (S, Si, Sj) peut être réalisée de manière à rester sur le composant haute pression lors d'une séparation de l'unité logique (A, Ai, Aj), notamment de manière à ce qu'elle puisse être échangée avec le composant haute pression.
  13. Moteur à combustion interne (1) comportant un système à rampe commune d'injection de carburant (100), notamment selon l'une quelconque des revendications 1 à 12, muni d'un dispositif électronique destiné à commander et/ou réguler le moteur à combustion interne (1), qui comporte une électronique centrale (9) et une unité logique et à mémoire locale (AE, ACR, AI) qui sont connectées par l'intermédiaire d'un bus de données (13), dans lequel l'électronique centrale (9) est conçue pour recevoir un signal d'évaluation destiné à des données de mesure ayant déjà été évaluées par l'unité logique et à mémoire locale (AE, ACR, AI) d'un capteur de pression (10, 20, 30).
  14. Moteur à combustion interne (1) selon la revendication 13, caractérisé en ce qu'une première unité logique et à mémoire locale (AE) comporte une entrée de signal qui est en liaison de signal avec une sortie de signal d'un capteur de pression (20) sur l'accumulateur individuel (7), dans lequel la capteur de pression (20) est conçu pour mesurer la pression de l'accumulateur individuel (7), et/ou
    une deuxième unité logique et à mémoire locale (AI) comporte une entrée de signal qui est en liaison de signal avec une sortie de signal d'un capteur de pression (30) sur un injecteur (8), dans lequel le capteur de pression (30) est conçu pour mesurer la pression de l'injecteur (8), et/ou
    une troisième unité logique et à mémoire locale (ACR) comporte une entrée de signal qui est en liaison de signal avec une sortie de signal d'un capteur de pression (10) sur la rampe (6), dans lequel le capteur de pression (10) est conçu pour mesurer la pression de la rampe (6).
  15. Dispositif destiné à commander et/ou à réguler un moteur à combustion interne (1), notamment selon la revendication 13 ou 14, lequel dispositif est destiné à traiter localement des données de mesure d'un dispositif manométrique pour la pression d'un accumulateur individuel (7) et/ou d'un injecteur (8) et/ou d'une rampe (6) en créant au moins un signal d'évaluation et à recevoir centralement l'au moins un signal d'évaluation (A(pE), A(pCR)) pour des données de mesure déjà évaluées du dispositif manométrique.
  16. Dispositif selon la revendication 15, caractérisé par une électronique centrale (9) comportant une entrée de signal qui est connectée, par l'intermédiaire d'un bus de données (13), à des fins de liaison de signal, à une sortie de signal d'une unité logique et à mémoire locale (AE, ACR), dans lequel l'unité logique et à mémoire locale (AE, ACR) est couplée au capteur de pression (10, 20).
  17. Procédé de commande et/ou de régulation d'un moteur à combustion interne (1) comportant un système à rampe commune d'injection de carburant (100) selon l'une quelconque des revendications 1 à 12, au moyen d'un dispositif électronique de commande et/ou de régulation, dans lequel, pendant un intervalle de mesure, une pression de l'accumulateur individuel (7) et/ou de l'injecteur (8) et/ou de la rampe (6) est détectée et mémorisée et une variation significative de la pression est utilisée pour commander un début d'injection ou une fin d'injection,
    caractérisé en ce que
    - la pression de l'accumulateur individuel (7) et/ou de l'injecteur (8) et/ou de la rampe (6) est mesurée, par l'intermédiaire d'un capteur de pression respectif (10, 20, 30), notamment au niveau de l'accumulateur individuel (7), immédiatement en aval ou en amont d'une résistance hydraulique de la conduite haute pression, et
    - est évaluée respectivement dans une unité logique et à mémoire locale (AE, ACR, AI) couplée au capteur de pression (10, 20, 30), d'une électronique locale répartie de manière décentralisée (12), et
    - seules les données évaluées sont délivrées sur le bus de données (13) à une logique (11) d'une électronique centralisée (9) du dispositif électronique.
  18. Procédé de commande et/ou de régulation d'un moteur à combustion interne (1) selon la revendication 17, caractérisé en ce que, lors de l'échange d'un composant haute pression, notamment d'un accumulateur individuel (7) et/ou d'un injecteur (8) et/ou d'une rampe (6), une unité d'accumulation (S, Si, Sj) séparable de l'unité logique (A, Ai, Aj), de l'unité logique et à mémoire (AE, ACR, AI) reste sur le composant haute pression, notamment sur l'accumulateur individuel (7) et/ou sur l'injecteur (8) et/ou sur la rampe (6).
EP12746284.4A 2011-08-16 2012-08-08 Système à rampe commune d'injection de carburant, moteur à combustion interne, et dispositif et procédé de commande et/ou de régulation d'un moteur à combustion interne Active EP2748450B1 (fr)

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DE102011080990A DE102011080990B3 (de) 2011-08-16 2011-08-16 Common-Rail-System, Brennkraftmaschine sowie Einrichtung und Verfahren zur Steuerung und/oder Regelung einer Brennkraftmaschine
PCT/EP2012/003379 WO2013023758A1 (fr) 2011-08-16 2012-08-08 Système à rampe commune d'injection de carburant, moteur à combustion interne, et dispositif et procédé de commande et/ou de régulation d'un moteur à combustion interne

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EP2748450A1 EP2748450A1 (fr) 2014-07-02
EP2748450B1 true EP2748450B1 (fr) 2016-06-22

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US (1) US9617962B2 (fr)
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DE (1) DE102011080990B3 (fr)
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WO (1) WO2013023758A1 (fr)

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WO2013023758A1 (fr) 2013-02-21
CN103946524A (zh) 2014-07-23
US9617962B2 (en) 2017-04-11
DE102011080990B3 (de) 2013-01-24
HK1200201A1 (en) 2015-07-31
EP2748450A1 (fr) 2014-07-02
CN103946524B (zh) 2017-02-15
US20140209065A1 (en) 2014-07-31

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