EP1132596B1 - Procédé pour surveillance de la combustion dans un moteur à combustion interne - Google Patents

Procédé pour surveillance de la combustion dans un moteur à combustion interne Download PDF

Info

Publication number
EP1132596B1
EP1132596B1 EP20010104856 EP01104856A EP1132596B1 EP 1132596 B1 EP1132596 B1 EP 1132596B1 EP 20010104856 EP20010104856 EP 20010104856 EP 01104856 A EP01104856 A EP 01104856A EP 1132596 B1 EP1132596 B1 EP 1132596B1
Authority
EP
European Patent Office
Prior art keywords
measurement
combustion
accordance
signal
determined
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.)
Expired - Lifetime
Application number
EP20010104856
Other languages
German (de)
English (en)
Other versions
EP1132596A2 (fr
EP1132596A3 (fr
Inventor
Alain Wesquet
Joseph A. Engel
Magnus P. Glavmo
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.)
Delphi Technologies Inc
Original Assignee
Delphi Technologies Inc
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 Delphi Technologies Inc filed Critical Delphi Technologies Inc
Publication of EP1132596A2 publication Critical patent/EP1132596A2/fr
Publication of EP1132596A3 publication Critical patent/EP1132596A3/fr
Application granted granted Critical
Publication of EP1132596B1 publication Critical patent/EP1132596B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P19/00—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition
    • F02P19/02—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition electric, e.g. layout of circuits of apparatus having glowing plugs
    • F02P19/028—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition electric, e.g. layout of circuits of apparatus having glowing plugs the glow plug being combined with or used as a sensor
    • 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
    • F02D35/021—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions using an ionic current sensor
    • 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
    • F02D35/022—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions using an optical sensor, e.g. in-cylinder light probe
    • 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
    • F02D35/025—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining temperatures inside the cylinder, e.g. combustion temperatures
    • 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
    • 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
    • F02D41/28—Interface circuits
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P17/00—Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines
    • F02P17/12—Testing characteristics of the spark, ignition voltage or current
    • 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
    • F02D41/28—Interface circuits
    • F02D2041/281—Interface circuits between sensors and control unit
    • F02D2041/285—Interface circuits between sensors and control unit the sensor having a signal processing unit external to the engine control unit
    • 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
    • F02D41/402—Multiple injections
    • F02D41/403—Multiple injections with pilot injections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P17/00—Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines
    • F02P17/12—Testing characteristics of the spark, ignition voltage or current
    • F02P2017/125—Measuring ionisation of combustion gas, e.g. by using ignition circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P17/00—Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines
    • F02P17/12—Testing characteristics of the spark, ignition voltage or current
    • F02P2017/125—Measuring ionisation of combustion gas, e.g. by using ignition circuits
    • F02P2017/128—Measuring ionisation of combustion gas, e.g. by using ignition circuits for knock detection

Definitions

  • the invention relates to a method for monitoring combustion in an internal combustion engine.
  • a measuring device is provided on at least one of the cylinders, which forms a sequence of measured values describing the combustion.
  • the sequence of measured values is subsequently transmitted as a measuring signal of an evaluation unit, which evaluates the course of the combustion from the measuring signal and, for example, forwards it to the further processing by the motor control.
  • an application-specific integrated circuit which is individually adapted to the respective type of internal combustion engine, as the evaluation unit, with which the measuring signal is evaluated.
  • DE 197 44 163 A1 describes a method for processing the ion current signals of internal combustion engines by offset correction.
  • the invention solves the problem by an arrangement with the features of claim 1 and in particular in that the evaluation unit has an analog-to-digital converter for digitizing the measurement signal and a microprocessor for evaluating the digitized measurement signal. Furthermore, the object is achieved by a method having the features of claim 9.
  • the analog measuring signal emitted by the measuring device is first digitized. After digitization, the measurement signal is fed into a microprocessor which evaluates the digitized measurement signal.
  • a microprocessor which evaluates the digitized measurement signal.
  • the arrangement according to the invention can be produced without much effort and can be adapted quickly to changing specifications.
  • additional information can be taken from the digitized measurement signal from the microprocessor which can be used as setpoint variables for the further engine control of the internal combustion engine.
  • a sensor which detects the conductivity of the combustion gas in the cylinder is used as the measuring device.
  • the sensor generates, based on the proportion of charged particles contained in the combustion gas, a series of measured values which describe the combustion gas's conductivity changing during the combustion.
  • it is possible to observe the formation of nitrogen oxides by evaluating the proportion of positively charged particles in the combustion gas and by detecting the proportion of negatively charged particles in the combustion gas and evaluate accordingly.
  • the evaluation unit is additionally connected to the amplifier and adjusts the amplification factor of the amplifier. In this way, a control of the gain of the measuring signal by the evaluation is possible.
  • a compensation unit between the measuring device and the evaluation unit with which measured value deviations in the measuring signal can be compensated.
  • the measuring device is contaminated by deposits from the combustion gas, whereby measured value deviations may arise in the measurement signal.
  • these measured value deviations can influence the measuring signal so that a proper evaluation of the measuring signal by the evaluation only limited possible or possibly even can be prevented.
  • the evaluation unit is enabled to evaluate a measurement signal without deviations in measured values.
  • the evaluation unit is additionally connected to the compensation unit for setting, so that a closed loop between the evaluation and the compensation unit is formed.
  • a measuring device for determining the conductivity of the combustion gas is provided on each cylinder of the internal combustion engine, which is in each case connected to a compensation unit.
  • the evaluation unit In order that the evaluation unit only detects the measuring signal of a specific measuring device for evaluation, the evaluation unit is connected to the compensation units of the measuring devices by a multiplexer unit, wherein the multiplexer unit selects the measuring device according to a control signal from the evaluation unit, which determines the conductivity of the combustion gas in each cylinder to be monitored.
  • an amplifier for amplifying the measurement signal supplied to the evaluation unit can additionally be arranged between the evaluation unit and the multiplexer unit.
  • the analog measurement signal formed from the sequence of measured values is first digitized and then fed into the microprocessor for evaluation.
  • the center of gravity is in particular the compensation of the measurement value deviation which falsifies the evaluation of the measured values.
  • the measured value deviation can be determined at a defined point in time relative to the start of the respective combustion process, for example at a predefined time interval before an injection instant, in which the fuel for the combustion process to be monitored is injected into the cylinder of the internal combustion engine, are determined.
  • the measured value deviation is determined at a defined time in relation to the beginning of a series of combustion processes to be monitored. This is particularly advantageous when the internal combustion engine is operated at high speed, so that the combustion processes taking place in the cylinder follow one another with a comparatively short time interval and determination of the measured value deviation is only possible with a very high computing speed. At high speeds of the internal combustion engine, it is also possible to randomly determine the measured value deviations.
  • the method can be designed at the same time for carrying out these three possibilities, wherein one of these possibilities for determining the measured value deviations is selected in accordance with the mode of operation of the internal combustion engine.
  • the measurement signal be amplified before the evaluation in order to simplify the evaluation.
  • a diagnostic function in the method according to the invention in which, as soon as the measured value deviation exceeds a predetermined limit value, a malfunction of the measuring device determining the measured values is diagnosed.
  • a measurement of the conductivity of the combustion gas measuring device is used, which may be affected by deposits from the combustion gas in their accuracy.
  • Fig. 1 is a block diagram of an arrangement 10 for monitoring the combustion in a diesel engine is shown.
  • the assembly 10 has on each cylinder of the diesel engine an ion measuring device 12, with which the conductivity of the in-cylinder combustion gas is measured.
  • Each ion measuring device 12 is provided with a compensation unit 14, which includes, inter alia, an operational amplifier, conductively connected. All compensation units 14 are in turn connected to a common multiplexer unit 16.
  • the multiplexer unit 16 is connected to an amplifier unit 18 whose output is connected to the input of an evaluation unit 20.
  • an analog-to-digital converter 22 is arranged, which is transmitted from the amplifier unit 18 to the evaluation unit 20 and amplified measurement signal that is transmitted to the evaluation unit 20 as an analog signal , converted to a digital signal.
  • the analog-digital converter 22 is in turn connected to a microprocessor 24 of the evaluation unit 20, in which the digital measurement signal is evaluated according to predetermined, stored algorithms.
  • the glow plug of the cylinder is used as a sensor, which is associated with the respective Ionenmeß worn 12.
  • the glow plug of the respective cylinder is connected in series with a reference resistor and conductively connected to the inner wall of the cylinder.
  • a capacitor which is charged during the measuring pauses of the evaluation unit 20
  • an electrical voltage is applied to the glow plug for determining the conductivity of the combustion gas. If the conductivity of the combustion gas is to be determined on the basis of the positively charged particles contained in the combustion gas, a negative voltage is applied to the glow plug during a portion of the compression stroke and a portion of the working stroke of the piston of that cylinder by means of the capacitor.
  • the positively charged particles produced during the combustion process change the conductivity of the combustion gas between the glow plug and the inner wall of the cylinder, which changes the voltage drop across the reference resistor, which is measured and output as a measurement signal.
  • the measurement signal generated by the respective ion measuring device 12 is then transmitted to the compensation unit 14 arranged downstream of the respective ion measuring device 12.
  • the compensation unit 14 With the help of the compensation unit 14 are deviations, resulting for example by deposits on the glow plug serving as a sensor and distort the measurement signal, balanced, as will be explained in detail later, to ensure proper evaluation of the measurement signal.
  • a compensation factor is input to the compensation unit, which is transmitted by a first line 26 directly from the evaluation unit 20 to the respective active compensation unit 14.
  • the measuring signal of the ion measuring device 12 is forwarded to the amplifier unit 18 according to the control signal of the evaluation unit 20, the measuring signal of which is to be evaluated by the evaluation unit 20.
  • the evaluation unit 20 selects the measurement signal of the Ionenmeß worn 12 for further evaluation, which monitors a cylinder of the diesel engine, in which an injection process imminent.
  • the measuring signal transmitted from the multiplexer unit 16 to the amplifier unit 18 is amplified at closing by the amplifier unit 18 and transmitted to the analog-to-digital converter 22 of the evaluation unit 20.
  • the amplifier unit 18 is connected via a line 30 to the evaluation unit 20 in connection, which determines the gain and forwards to the amplifier unit 18, with which the amplifier unit 18 is to amplify the measurement signal.
  • the reference signal curve 40 is a digital signal in which each time the diesel engine enters a predetermined operating position, for example, when the crankshaft angle assumes a certain value, the signal of the reference signal curve 40 is set from 0 to 1 over a predetermined period ⁇ t r . After expiration of the predetermined period ⁇ t r , the reference signal 40 is reset to 0 again, as the signal deflection 48 of the reference signal curve 40 shows.
  • the second signal curve is the injection signal curve 42, which is also output as a digital signal and signals the beginning and end of the pilot injection and the beginning and end of the main injection.
  • the injection signal curve 42 is set from 0 to 1, as the pilot injection pulse 50 shows.
  • the injection signal curve 42 is reset to 0 again until the main injection starts.
  • the injection signal curve 42 is again set from 0 to 1, as the main injection pulse 52 shows, which is reset to 0 after the completion of the main injection.
  • the third signal curve is the Meßsignalkurve 44, with which the detected by the Ionenmeß worn 12 of the arrangement 10 conductivity of the combustion gas is shown in the cylinder.
  • This is an analog signal, from which the course of the pre-combustion caused by the pilot injection and the course of the main combustion caused by the main injection can be taken.
  • the Meßsignalkurve 44 shows prior to the injection of an approximately parallel to the time axis t extending signal, however, may be displaced by a deviation y with respect to the zero volt mark due to deposits on the sensor of the respective Ionenmeß perceived 12.
  • the measuring signal curve 44 rises to a first signal peak 54 which, after completion of the precombustion, returns to the output value corresponding to the deviation y.
  • the measurement signal curve 44 rises again to form a second signal peak 56, which likewise falls back to the output value corresponding to the deviation y after completion of the main combustion.
  • the last curve shows a digital evaluation curve 46, with which so-called measuring windows 58, 60 and 62 are defined, as will be explained below.
  • the evaluation unit 20 selects, for example from the determined crankshaft position, the cylinder whose combustion is to be monitored. Subsequently, the evaluation unit 20 actuates the multiplexer unit 16, which according to the specification of the evaluation unit 20 only forwards the signal of the ion measuring device 12 of the cylinder to the evaluation unit 20, which has been selected by the evaluation unit 20 for monitoring. At the same time, the evaluation unit 20 sets the compensation factor to 0, with which the compensation unit 14 converts the measurement signal output by the ion measuring device 12 in order to compensate occurring measured value deviations. Furthermore, the evaluation unit 20 sets the amplification factor of the amplifier unit 18 to 1 so that the measurement signal is transmitted to the evaluation unit 20 without being amplified. As soon as the evaluation unit 20 can detect the measurement signal of the ion measuring device 12 in an undistorted manner, the actual measuring method is carried out, which will be explained in more detail below with reference to FIG.
  • the reference signal of the reference signal curve 40 is set to 1 over the first period .DELTA.t r .
  • the signal in the evaluation curve 46 is set from 0 to 1 over a predetermined first measurement period ⁇ t m1 , whereby the first measurement window 58 is defined.
  • the evaluation unit 20 detects the measurement signal of the ion measuring device 12 and evaluates this. Since at this time, as shown in particular the Meßsignalkurve 44, no conductivity change in the monitored cylinder per se, the measurement signal shows a constant course, but possibly offset by the deviation y offset to the zero volt mark parallel to time axis t can be.
  • the evaluation unit 20 is now able to detect this deviation y within the first measuring field 58 and to compensate it with the aid of the compensation unit 14 in the later measuring method. After the evaluation of the measurement signal in the first measurement window 58 is completed, the evaluation curve 46 is reset to 0 again.
  • the evaluation unit 20 activates the amplifier unit 18 by transmitting to the amplifier unit 18 a gain factor which is greater than 1 in order to amplify the measurement signal.
  • the evaluation curve 46 is set from 0 to 1 over a predetermined second measurement period ⁇ t m2 , thereby defining the second measurement window 60.
  • the length of the second measuring period .DELTA.t m2 is read from a series of stored measuring periods in dependence on the speed of the motor.
  • the position of the second measuring window 60 can also be read from a table, depending on the speed of the motor, or defined according to a predetermined offset with respect to the pilot injection pulse 50.
  • the evaluation unit 20 detects from the measurement signal curve 44 the course of the pre-combustion caused by the pre-injection, as defined by the first signal peak 54. From the course of the pre-combustion of the digitized measurement signal, the evaluation unit 20 can evaluate, for example, the beginning, the course, the temperature development or the heat release of the pre-combustion with the aid of its microprocessor 24 and forward the evaluation results, for example, to an engine control, not shown, which controls the pilot injection for the corresponding cylinder can readjust accordingly. After the pre-combustion has been detected, the signal of the Ausncekurve 46 is again set from 1 to 0, whereby the time-limited by the second measurement window 60 measurement is completed.
  • the course of main injection is detected by the evaluation unit 20.
  • the signal of the Ausirekurve 46 is set at a certain time over a predetermined third measurement period .DELTA.t m3 to 1, whereby the third measurement window 62 is defined.
  • the position of the third measuring window 62 and the length of the third measuring period .DELTA.t m3 is also read from a table as a function of the speed of the diesel engine.
  • the evaluation unit 20 detects from the measurement signal curve 44 the course of the main combustion caused by the main injection, as represented in the measurement signal curve 44 by the second signal peak 56.
  • the evaluated signal results in a wide variety of possible applications that further process information resulting from the signal.
  • the power of the individual cylinders are coordinated so that the diesel engine runs relatively quiet.
  • Another application of the detected signal is to determine for diagnostic purposes from the signal, for example, whether the injection valve is stuck and can not be opened or closed.

Landscapes

  • 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)

Claims (12)

  1. Procédé de surveillance de la combustion dans un moteur diesel, au moins une suite de valeurs de mesure décrivant la combustion dans le moteur à combustion interne étant formée dans le cadre du procédé, la suite de valeurs de mesure étant ensuite exploitée pour l'analyse du processus de combustion, et le signal de mesure (44) analogique formé à partir de la suite de données de mesure étant numérisé afin d'être évalué par un microprocesseur (24), un écart de valeurs de mesure (y) dans la suite de valeurs de mesure faussant l'évaluation étant compensé avant l'évaluation des valeurs de mesure, la combustion étant subdivisée en pré-combustion et combustion principale, et l'écart de valeurs de mesure (y) étant déterminé à un moment défini par rapport au début de la pré-combustion et de la combustion principale à surveiller.
  2. Procédé selon la revendication 1, caractérisé en ce que l'écart des valeurs de mesure (y) est déterminé avant le début de la combustion à surveiller.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce qu'une suite de valeurs de mesure est déterminée pour chaque processus de combustion.
  4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'écart des valeurs de mesure (y) est déterminé à un intervalle temporel prédéfini avant un moment d'injection où le carburant est injecté pour le premier processus de combustion de la série de processus de combustion à surveiller dans le cylindre du moteur à combustion interne.
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la détermination de l'écart des valeurs de mesure (y) s'effectue par échantillonnage.
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que chacune des valeurs de mesure de la suite est corrigée par soustraction de l'écart des valeurs de mesure (y).
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le signal de mesure (44) est amplifié avant l'évaluation et que l'écart des données de mesure (y) est déterminé avant l'amplification du signal de mesure (44).
  8. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une première fenêtre de mesure (58) est définie, au sein de laquelle est déterminé l'écart des valeurs de mesure (y).
  9. Procédé selon la revendication 8, caractérisé en ce que deux autres fenêtres de mesure (60, 62) sont définies, le déroulement de la pré-combustion étant déterminé à l'intérieur de la deuxième fenêtre de mesure (60) à partir du signal de mesure (44) et le déroulement de la combustion principale, à l'intérieur de la troisième fenêtre de mesure (62) à partir du signal de mesure (44).
  10. Procédé selon la revendication 8 ou 9, caractérisé en ce que la position et / ou la longueur de la première fenêtre de mesure (58) et la position et / ou la longueur d'au moins une des trois fenêtres de mesure (58, 60, 62) est calculée en fonction des caractéristiques de fonctionnement du moteur à combustion interne, choisie de préférence à partir de données enregistrées dans un tableau conformément aux caractéristiques de fonctionnement.
  11. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que, dès que l'écart des valeurs de mesure (y) dépasse une valeur seuil prescrite, une fonction d'erreur du dispositif de mesure déterminant les valeurs de mesure est diagnostiquée.
  12. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le déroulement de la combustion est décrit par l'intermédiaire de la mesure de conductibilité du gaz de combustion, la suite de valeurs de mesure décrivant le déroulement de la combustion étant une suite de valeurs de conductibilité.
EP20010104856 2000-03-10 2001-02-28 Procédé pour surveillance de la combustion dans un moteur à combustion interne Expired - Lifetime EP1132596B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000111619 DE10011619A1 (de) 2000-03-10 2000-03-10 Anordnung zur Überwachung der Verbrennung in einem Verbrennungsmotor sowie Verfahren zur Überwachung der Verbrennung
DE10011619 2000-03-10

Publications (3)

Publication Number Publication Date
EP1132596A2 EP1132596A2 (fr) 2001-09-12
EP1132596A3 EP1132596A3 (fr) 2003-09-10
EP1132596B1 true EP1132596B1 (fr) 2006-06-14

Family

ID=7634176

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20010104856 Expired - Lifetime EP1132596B1 (fr) 2000-03-10 2001-02-28 Procédé pour surveillance de la combustion dans un moteur à combustion interne

Country Status (2)

Country Link
EP (1) EP1132596B1 (fr)
DE (2) DE10011619A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2838775B1 (fr) * 2002-04-17 2006-11-24 Peugeot Citroen Automobiles Sa Moteur diesel comportant un dispositif de controle du debit d'injection de carburant
FR2851616A1 (fr) * 2003-02-21 2004-08-27 Delphi Technologies Procede de reglage de l'impulsion electrique de commande d'un injecteur
DE102004029006B3 (de) * 2004-06-16 2005-04-07 Daimlerchrysler Ag Signalauswerteverfahren für Ionenstrommessung in Dieselmotoren
DE102004042009A1 (de) * 2004-08-31 2006-03-02 Daimlerchrysler Ag Verfahren zur Bestimmung der Einspritzmenge von Injektoren einer selbstzündenden Brennkraftmaschine
FR2969699B1 (fr) * 2010-12-23 2015-07-17 Renault Sa Systeme de controle du fonctionnement d'un moteur a combustion interne de vehicule automobile.

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55115101A (en) * 1979-02-26 1980-09-04 Nissan Motor Co Ltd Data processor
DE3415948A1 (de) * 1984-04-28 1985-10-31 Robert Bosch Gmbh, 7000 Stuttgart Verfahren zur klopferkennung bei brennkraftmaschinen
DE4244804C2 (de) * 1991-07-17 1996-02-08 Mitsubishi Electric Corp Fehlzündungserfassungsvorrichtung für eine Brennkraftmaschine
DE4408243B4 (de) * 1994-03-11 2007-06-21 Robert Bosch Gmbh Einrichtung zur Erfassung einer pulsierenden Größe
JPH09324690A (ja) * 1996-06-03 1997-12-16 Mitsubishi Electric Corp 内燃機関制御装置
JPH10252635A (ja) * 1997-03-17 1998-09-22 Hitachi Ltd 故障診断装置付きエンジン燃焼状態検出装置
DE19727004A1 (de) * 1997-06-25 1999-01-07 Bosch Gmbh Robert Verfahren und Vorrichtung zur Erkennung von Zündaussetzern einer Brennkraftmaschine
DE19755247A1 (de) * 1997-12-12 1999-06-24 Daimler Chrysler Ag Verfahren zur Erkennung von Zündaussetzern aus einem Ionenstromsignal bei Brennkraftmaschinen mit elektronischer Verstellung eines Zündzeitpunktes
EP1082533B1 (fr) * 1998-05-26 2002-08-28 Mecel AB Systeme et procede permettant de commander l'injection de carburant de moteurs a combustion

Also Published As

Publication number Publication date
DE10011619A1 (de) 2001-09-13
DE50110090D1 (de) 2006-07-27
EP1132596A2 (fr) 2001-09-12
EP1132596A3 (fr) 2003-09-10

Similar Documents

Publication Publication Date Title
EP2277035B1 (fr) Unité d'analyse et de commande
DE19518861C2 (de) Vorrichtung zum Feststellen sowie Verfahren zum Steuern des Klopfens bei einem Verbrennungsmotor
DE19655262B4 (de) Steuervorrichtung für eine Brennkraftmaschine
DE19749817B4 (de) Vorrichtung und Verfahren zur Ermittlung des Spritzbeginns
WO2008034754A1 (fr) procédé et dispositif de production de signaux d'injection pour le système d'injection d'un moteur à combustion interne
DE3840148A1 (de) Verfahren und vorrichtung zum erkennen eines fehlerzustandes einer lambdasonde
DE2445067B2 (de) Verfahren und vorrichtung zum ermitteln der klopfgeraeusche eines verbrennungsmotors
DE10255583B4 (de) Fehlzündungsdetektionsvorrichtung für einen Verbrennungsmotor
DE10317377A1 (de) Klopferfassungsvorrichtung für eine Verbrennungskraftmaschine
EP0076265B1 (fr) Procede et dispositif pour detecter les phenomenes de combustion irreguliers dans un moteur
EP0960324B1 (fr) Procede de surveillance et de detection de defaut
DE10313558A1 (de) Klopfsteuervorrichtung für einen Verbrennungsmotor
WO2010026047A1 (fr) Procédé et dispositif de correction de la variation de longueur, due à la température, d'une unité actionneur qui est montée dans le carter d'un injecteur de carburant
DE3038352C2 (de) Klopfdetektor für einen Verbrennungsmotor
EP1132596B1 (fr) Procédé pour surveillance de la combustion dans un moteur à combustion interne
DE102004043196B4 (de) Verfahren zur Signalbearbeitung mit einem Schaltkreis zur Abtastung und Aufbereitung eines Ionenstromsignals in der Verbrennungskammer eines internen Verbrennungsmotors
DE19524499A1 (de) Zündanlage für eine Brennkraftmaschine
EP3289347B1 (fr) Procédé et appareil pour la determination de la résistance interne d'un element capteur
DE102004036388A1 (de) Verfahren zum Betreiben einer Brennkraftmaschine, bei dem die Beladung eines Abgasstroms mit Rußpartikeln erfasst wird
DE2925483C2 (de) Verfahren und Vorrichtung zum Messen und Auswerten der Spitzenwerte eines pulsierenden Spannungsmessignals
DE102004031625A1 (de) Schaltungsanordnung zur Diagnose eines Heizwiderstands
DE102004009024A1 (de) Steuervorrichtung für einen Verbrennungsmotor
EP2518297B1 (fr) Détermination et limitation d'un décalage d'une quantité d'injection dans un moteur à combustion interne doté de plusieurs cylindres
DE3213587A1 (de) Vorrichtung zum erzeugen eines klopfsignals bei einer brennkraftmaschine
DE102006015968B3 (de) Adaptionsverfahren und Adaptionsvorrichtung einer Einspritzanlage einer Brennkraftmaschine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

RIC1 Information provided on ipc code assigned before grant

Ipc: 7F 02D 41/26 B

Ipc: 7F 02D 41/24 B

Ipc: 7F 02D 41/14 B

Ipc: 7F 02D 35/02 A

17P Request for examination filed

Effective date: 20031017

17Q First examination report despatched

Effective date: 20040227

AKX Designation fees paid

Designated state(s): DE FR GB IT

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RTI1 Title (correction)

Free format text: METHOD FOR MONITORING COMBUSTION IN AN INTERNAL COMBUSTION ENGINE

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20060614

Ref country code: GB

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060614

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 50110090

Country of ref document: DE

Date of ref document: 20060727

Kind code of ref document: P

GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 20060614

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20070315

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 16

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 18

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 50110090

Country of ref document: DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 50110090

Country of ref document: DE

Owner name: DELPHI AUTOMOTIVE SYSTEMS LUXEMBOURG S.A., LU

Free format text: FORMER OWNER: DELPHI TECHNOLOGIES, INC., TROY, MICH., US

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20200220

Year of fee payment: 20

Ref country code: DE

Payment date: 20200227

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20200225

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 50110090

Country of ref document: DE