EP2906802A1 - Procédé de détection de défaillance d'injecteurs dans un moteur à combustion interne, dispositif de commande de moteur et système pour la mise en oeuvre d'un procédé - Google Patents

Procédé de détection de défaillance d'injecteurs dans un moteur à combustion interne, dispositif de commande de moteur et système pour la mise en oeuvre d'un procédé

Info

Publication number
EP2906802A1
EP2906802A1 EP13774074.2A EP13774074A EP2906802A1 EP 2906802 A1 EP2906802 A1 EP 2906802A1 EP 13774074 A EP13774074 A EP 13774074A EP 2906802 A1 EP2906802 A1 EP 2906802A1
Authority
EP
European Patent Office
Prior art keywords
injector
internal combustion
combustion engine
angle
detected
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.)
Withdrawn
Application number
EP13774074.2A
Other languages
German (de)
English (en)
Inventor
Jörg REMELE
Aron Toth
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.)
Rolls Royce Solutions GmbH
Original Assignee
MTU Friedrichshafen GmbH
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 MTU Friedrichshafen GmbH filed Critical MTU Friedrichshafen GmbH
Publication of EP2906802A1 publication Critical patent/EP2906802A1/fr
Withdrawn legal-status Critical Current

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
    • F02D41/009—Electrical control of supply of combustible mixture or its constituents using means for generating position or synchronisation signals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D17/00—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling
    • F02D17/04—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling rendering engines inoperative or idling, e.g. caused by abnormal conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/008—Controlling each cylinder individually
    • F02D41/0087—Selective cylinder activation, i.e. partial cylinder operation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • 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
    • 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
    • F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
    • F02D41/2425—Particular ways of programming the data
    • F02D41/2429—Methods of calibrating or learning
    • F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
    • 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
    • F02D41/3005—Details not otherwise provided for
    • 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
    • F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F02D2041/224—Diagnosis of the fuel system
    • 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
    • F02D2041/286—Interface circuits comprising means for signal processing
    • F02D2041/288—Interface circuits comprising means for signal processing for performing a transformation into the frequency domain, e.g. Fourier transformation

Definitions

  • the invention relates to a method for failure detection of injectors in one
  • US Pat. No. 5,303,158 A discloses a method for detecting abnormal combustion events in cylinders of an internal combustion engine, whereby a failed injector can be subsumed under an anomalous combustion event.
  • Combustion engine is Fourier-transformed, and there are amplitudes in
  • predetermined frequency ranges of the spectra thus obtained to determine an abnormal combustion event. If such is detected, it is possible in separate process steps to find out in which cylinder anomalous combustion takes place. For this purpose, an abnormal combustion is enforced in the individual cylinders, and in turn amplitudes in
  • predetermined frequency ranges of the spectra thus obtained are compared with each other, the results of this comparison are compared with corresponding results from the previously obtained without forced anomalous spectra spectra.
  • the method is complicated and cumbersome, especially because always after the detection of anomalous combustion sequentially in each cylinder such must be forced to determine ultimately in which cylinder the anomalous combustion event takes place.
  • the comparison of the amplitudes in predetermined frequency ranges of the different spectra is complicated and cumbersome.
  • the invention is therefore based on the object to provide a method with which an injector failure can be easily and quickly detected during normal operation of the engine and a failed injector can be identified.
  • the invention is further based on the object to provide an engine control unit, which is adapted to carry out the method, as well as to provide a system by means of which the method is feasible.
  • the object is achieved by providing a method according to claim 1.
  • the method for failure detection of injectors in an internal combustion engine comprises the following steps: A crank angle signal is measured, which is transformed into the frequency domain by means of discrete Fourier transformation. From the discreet. In particular, Fourier transformation of the crank angle signal results in an amount and an angle for a harmonic of the 0.5th order of the crank angle signal i m
  • an angle of the harmonics of the 0.5th order of the Fourier-transformed crank angle signal for each disconnected injector is also determined once and sequentially one after the other. For example, first a first injector is turned off, and it is an angle of the harmonics of the 0.5th order for this operating condition of the internal combustion engine detected with the first off alone injector and preferably stored in a first storage means. Thereafter, the first injector is turned on again and a second injector is turned off while the remaining injectors remain on. Also for this operating state, a corresponding angle is detected and stored in the first storage means. This is continued accordingly until a corresponding angle has been detected and stored in the first storage means for each individual injector switched off alone. In this case, the angles in the first storage means are assigned to the respectively switched-off injectors.
  • both an angle and an amount of the 0.5th-order harmonic of the Fourier-transformed crank angle signal are continuously detected and stored, preferably in a second memory means.
  • the amount thus acquired is continuously compared to a predetermined threshold.
  • An injector failure is detected when the amount that has been continuously detected is the
  • Injector failure can be closed.
  • the excessive amount is merely characteristic of the fact that an injector has ever failed.
  • the angle of the harmonics of the 0.5th order is characteristic of the actual failed individual injector. In the method step addressed here, it is therefore first determined whether an injector has ever failed.
  • the continuously detected angle is individually compared with the angles stored for each disconnected injector in the first storage means if an injector failure has previously been detected due to the excessive amount.
  • the failed injector is then identified with the injector for which a matching angle stored in the first storage means is found in the comparison. In this way, it is easily possible to determine which injector has failed when an injector failure has been detected.
  • the second storage means has only one storage area for a currently detected angle, so that the next detected angle overwrites the last detected angle. In this case, the angle is kept in the memory area when an injector failure is detected, at least until the failed injector has been identified. It is also possible that the second memory means has a plurality of memory areas which are filled continuously, the oldest measured value being removed from its memory area each time a new measured value is stored. It is then possible to continuously record additional angles and amounts during a comparison to identify a failed injector. Of course it is then necessary, just above the current Memory area of just included in the comparison angle book because it preferably changes with each new value added until the angle eventually falls out of the last occupied memory area.
  • a method is preferred which is characterized in that the once sequentially detected angles are stored in a so-called look-up table.
  • the first memory means thus preferably comprises a tabular memory area in which the angles stored there are assigned to the injectors respectively switched off.
  • a method is also preferred, which is characterized in that the one-time sequential detection and storage of the angle for each disconnected injector after a start of the internal combustion engine or after a start of the method is performed. In particular, this is carried out immediately after a start of the internal combustion engine or immediately after a start of the method, so that the first
  • Storage means preferably the look-up table, is filled with values as soon as the internal combustion engine is put into operation or the process is started.
  • the first storage means or the method is initialized here, and a subsequent monitoring of the internal combustion engine to failed injectors during normal operation can be done without it being necessary again in the course of operation to selectively shut down individual injectors.
  • the initialization of the first storage means is thus preferably carried out at a time in which the
  • Combustion engine is not yet required under a normal load, so that the targeted shutdown of individual injectors does not interfere with the later, normal operation.
  • the method is started immediately at the start of the internal combustion engine.
  • the method is preferably carried out during the entire operation of the internal combustion engine, wherein the first memory area is initialized once only once after the start of the internal combustion engine, and the method is subsequently without further intervention in the operation of the Internal combustion engine runs in the background so to monitor the internal combustion engine on the failure of an injector. In this case, the method does not
  • Control intervention in the operation of the internal combustion engine as long as no injector failure is detected. If an injector failure is detected, it does not require any intervention in the operation of the internal combustion engine to identify the failed injector.
  • this is started independently of a start of the internal combustion engine at any time, for example by an operator or driver deliberately starting it. It is also possible that the method - preferably by the driver or operator of the internal combustion engine - is terminated. In this case, however, arise
  • a method is also preferred which is characterized in that at least one measure is taken when an injector failure is detected and a failed injector is identified.
  • an energization of the failed injector is exposed. This is particularly useful if the injector does not fail due to faulty energization, but because, for example, there is a mechanical problem. It is then prevented that occur through the energization of the defective injector damage.
  • a faulty current for example, a short circuit, a
  • Injector failure causes, where it makes sense to suspend the energization of the defective injector.
  • the consecutively detected hint! and magnitude of the 0.5th-order harmonic of the crank angle signal is initially stored when an initial injector failure is detected before the angles for each disabled injector have been sequentially detected and stored once.
  • an injector failure is already detected, ie, if a detected amount of the harmonics of the 0.5th order exceeds the predetermined threshold. If this is the case, both the detected angle and the amount - preferably in a third
  • the individual injectors are sequentially turned off sequentially, and for each individual injector turned off, an amount and an angle of the 0.5th-order harmonic of the crank angle signal are detected and initialized stored values, which are preferably present in the third storage means, compared.
  • an initially failed injector ie an injector which has failed before the initialization of the first storage means, identified if that for a single
  • Initialization of the first storage means to identify is preferred, which is characterized in that one of the measures described above is taken when an initial
  • a warning is preferably issued to a driver or operator, subjected to energization of the failed injector, reduced power of the engine and / or turned off the engine. This makes it possible in particular to avoid damage and / or destruction of the internal combustion engine or the clutch.
  • the engine control unit is a so-called electronic engine control unit (ECU).
  • the crank angle signal is preferably detected by a crankshaft sensor, which is already provided for engine control.
  • the engine control unit is preferably synchronized at the beginning of the method or at a start of the internal combustion engine by means of a camshaft signal, which is preferably detected by a camshaft sensor, to work cycles of cylinders of the internal combustion engine.
  • Synchronization is preferably carried out anyway, so that the engine control unit can also perceive synchronized other functions for controlling the internal combustion engine.
  • the method requires no further facilities that are not already provided in or on the internal combustion engine.
  • the method requires only signals of the crankshaft and the camshaft. Since these signals are recorded on every modern combustion engine, there are no additional sensor, device and / or cabling costs. Since the algorithm for the method is preferably implemented in the engine control unit, there are no additional costs or no further devices need to be integrated into the internal combustion engine.
  • a method is also preferred, which is characterized in that the method in an operating point of the internal combustion engine under load or at idle
  • the method is preferably carried out in large engines, for example, as drive units for locomotives, ships, other large vehicles or stationary, for example, be used for small power plants.
  • large engines generally occurs no overrun, as is customary in smaller engines in the automotive sector for road traffic, for example when a
  • the system comprises a detection means, preferably a crankshaft sensor, which is designed so that it can measure or detect a crank angle signal. It has a transformation means, which with the detection means for
  • crank angle signal forwarding of the crank angle signal is operatively connected and designed so that the crank angle signal mi.tzz the transformation means by means of discrete
  • the system has a switching means which is designed so that with its help injectors of the internal combustion engine sequentially and in particular individually switched off and can be turned on again.
  • the system also includes a first storage means configured to detect and store an angle of the 0.5th-order harmonic of the crank angle signal for each injector, in particular, individually disabled.
  • a second memory means which is arranged to continuously adjust an angle and an amount of harmonics of the Can detect and store 0.5th order of the crank angle signal.
  • a first comparison means is provided which is adapted to continuously compare the amount stored in the second storage means with a predetermined threshold, the comparison means being further arranged to detect an injector failure when the amount is the predetermined one
  • Threshold exceeds.
  • a second comparison means is provided which is arranged to individually compare the angle stored in the second storage means with each of the angles stored in the first storage means when there is an injector failure.
  • the second comparison center! is also like that
  • a first step 1 the method for failure detection of injectors is started. This preferably takes place together with or immediately after the start of the internal combustion engine.
  • a second step 3 an amount and an angle of a harmonic of the 0.5th order of a crank angle signal transformed into the frequency domain by means of discrete Fourier transformation are detected and preferably stored in a third memory means.
  • a query 5 follows, in which it is checked whether the amount initially stored in step 3 is greater than a predetermined threshold value.
  • a first storage means has already been initialized.
  • the first storage means is freshly initialized.
  • it is not absolutely necessary to reinitialize the first storage means if the procedure stopped during operation of the internal combustion engine and - after a certain waiting time - is restarted. Even in such a case, however, it is possible to initialize the first storage means fresh, and it can also be deleted at the end of the process, so it must be freshly initialized at a restart.
  • the storage means is not freshly initialized each time the internal combustion engine is restarted, but rather that in particular in the look-up table
  • stored values can be used for a predetermined number of separate operating phases of the internal combustion engine.
  • the method proceeds to a step 101. Otherwise, if an initialized first storage means or a filled-in, ie data-filled lookup table already exists, the method proceeds to a step 9.
  • a number of cylinders encompassed by the internal combustion engine and thus also the number of injectors included in the internal combustion engine are determined in step 101.
  • the internal combustion engine comprises exactly one injector per cylinder.
  • more than one injector per cylinder may be provided. It is readily apparent how the method described below is then to be modified, which is why, for the sake of simplicity, only the preferred case is described in which the internal combustion engine comprises only one injector per cylinder.
  • the determined number of cylinders is stored and a run variable is set to the value 0.
  • a first injector is turned off when the run variable is 0
  • a second injector is turned off when the run variable is 1, and so on.
  • one and only one injector is always switched off, which is uniquely assigned to the current value of the run variable.
  • an angle of the harmonic of the 0.5th order is detected and stored in the first memory means or the lookup table, which is assigned to the operation of the internal combustion engine with the injector switched off alone, which is assigned to the current value of the run variable is.
  • step 109 the corresponding injector associated with the current value of the run variable is turned on again.
  • step 111 the value of the run variable is increased by the amount 1.
  • the process now returns to query 103, in which it is again checked whether the new value of the run variable is still smaller than the stored number of cylinders. If this is the case, the sequence of steps 105 to 11 follows again. Thus, a loop around the query 103 and steps 105 to 11 1 is run through until, for each individually switched-off injector, an angle of the harmonic of 0.5 -th order was recorded and stored. If the run variable has a value equal to the number of cylinders for the first time, the corresponding loop was run through for all injectors because the value of 0 for the first injector was started. The loop is therefore run through for the last injector when the variable has a value which corresponds to the number of cylinders reduced by the amount of 1.
  • the method advances to step 9.
  • the method also arrives directly from the query 7 to the step 9, if the initialization of the first memory means or the prediction of the lookup table can be dispensed with.
  • step 9 both an amount and an angle of the 0.5th-order harmonic of the Fourier-transformed crank angle signal are detected, and preferably stored in a second storage means.
  • a query 11 checks whether the amount detected and stored in step 9 is greater than a predetermined threshold. If this is not the case, there appears to be no injector failure, and the process returns to step 9, again detecting an amount and angle of the 0.5th order harmonic and is stored. It will be understood that here a loop is realized in which an amount and an angle of the 0.5th order harmonic are continuously detected and stored.
  • step 13 in which the angle detected in step 9 is individually associated with the angles stored in the first storage means and in the look-up table, respectively, associated with individually disconnected injectors. is compared.
  • step 17 it is determined in a step 17 that there is an apparent error, whereby the failed injector was not recognized. In this case, the process returns to the step 9, and again, the continuous detection and storage of the magnitude and angle of the 0.5th-order harmonic of the Fourier-transformed crank angle signal starts again.
  • the failed injector can also be identified on the basis of the values stored in the first storage medium or the data of the look-up table. Then, in a step 19, the failed injector is output and / or measures are taken. taken, for example, a warning to a driver or operator of the internal combustion engine is issued, a suspension of energization of
  • the method preferably ends in a step 21.
  • step 5 If an initially failed injector is detected in step 5 because the initially detected value for the harmonic amount of the 0.5th order is larger than the predetermined threshold, the method does not proceed to the query 7 but to a step Step 201 continues.
  • the number of cylinders is determined, and a run variable is assigned the value 0. In that regard, reference is made to the comments on step 101.
  • a query 203 is tested analogous to the query 103, whether the variable is less than the number of cylinders. This is typically the case when query 203 is first reached because the run variable was previously set to 0 in step 201.
  • step 205 an injector is now switched off, which is assigned to the current value of the run variable. Also with regard to the assignment of the injectors to the values of the running variable, reference is made to the explanations already given in connection with query 103 and steps 105 to 11. It is essential that in step 205, only a single injector is selectively switched off, which is uniquely associated with the current value of the variable.
  • a step 207 an amount and an angle of the 0.5th-order harmonic detected in the operating state of the internal combustion engine with the injector currently shut down and associated with the current value of the running variable are detected.
  • the values determined for the amount and the angle associated with the current value of the run variable are compared with the values initially determined and stored in step 3.
  • the method jumps to step 19 because the initially failed injector has been detected.
  • the measures already described are then preferably initiated, and the method ends in step 21.
  • the query 209 the values which correspond to the current value of the
  • Running variables are assigned, do not match the initial values measured in step 3, apparently another, not failed injector was turned off.
  • step 211 the at the current value of the run variable
  • the method then jumps back to the query 203, in which it is again checked whether the current value of the run variable is smaller than the number of cylinders.
  • a loop is implemented here, which is run through until either the initially failed injector is identified, or until all injectors have been switched off individually, without the failed injector having been identified. Only in this last case is the query 203 ever even determining that the run variable assumes a value which corresponds to the number of cylinders. In all other cases, the loop ends in query 209 before, because the failed injector has been identified, and the method therefore jumps to step 19.
  • the method then returns to step 201 where the number of cylinders is again determined. It then follows a renewed passage of the query 203 or steps 205 to 209 or 211, 213 until the failed injector has been successfully identified.
  • Table 1 exemplary values are shown which may be stored in the first storage means to identify injectors associated with individual cylinders.
  • Table 1 is an example of a lookup table. The values shown were measured for a 12-cylinder V-engine and are exemplary values for the definition of a look-up table. It should only be made clear from Table 1 that it is actually possible to calculate the angle of the harmonics of the 0.5 -th order clearly determine which injector has failed. It thus becomes clear that this angle actually clearly characterizes an individually switched-off or failed injector.
  • the respective injector is identified by the cylinder uniquely assigned to it.
  • V-engine a distinction between the two in a geometric angle V-shaped opposite Cylinder benches, which are denoted by the letters A and B.
  • the twelve cylinders are therefore numbered with the designations A1 to A6 for the cylinders of the A-Bank and the designations B1 to B6 for the cylinders of the B-Bank.
  • Each cylinder is assigned exactly one injector.
  • the engine control unit and the system a simple and rapid injector failure detection is possible, in particular a detection of defective injectors during a running operation of the internal combustion engine without cylinder deactivation, which could interfere with the operation is possible. Rather, only once the individual injectors must be sequentially switched off sequentially to fill the first memory means with values or to feed the lookup table. It is easily possible to customize a defective injector and thus exchange targeted. Furthermore is it is not necessary to run test sequences outside of normal operation of the internal combustion engine, since the method virtually allows online monitoring during ongoing engine operation.

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  • 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)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

L'invention concerne un procédé de détection d'une défaillance d'injecteurs dans un moteur à combustion interne, comprenant les étapes suivantes : mesure d'un signal d'angle de vilebrequin, transformation du signal d'angle de vilebrequin dans le domaine fréquentiel au moyen d'une transformée de Fourier discrète, arrêt unique, successif de chaque injecteur, détection et mémorisation uniques et successives d'un angle de l'harmonique du 0,5ème ordre du signal d'angle de vilebrequin transformé par transformée de Fourier pour chaque injecteur arrêté, détection et mémorisation en continu d'un angle et de la valeur de l'harmonique du 0,5ème ordre du signal d'angle de vilebrequin transformé par transformée de Fourier, comparaison en continu de la valeur détectée en continu avec une valeur seuil prédéterminée, et détermination d'une défaillance de l'injecteur lorsque la valeur dépasse une valeur seuil prédéterminée, comparaison de l'angle détecté en continu avec les angles mémorisés pour chaque injecteur lorsqu'une défaillance est établie, et identification de l'injecteur défaillant avec un injecteur pour lequel un angle mémorisé correspondant est obtenu.
EP13774074.2A 2012-10-10 2013-10-04 Procédé de détection de défaillance d'injecteurs dans un moteur à combustion interne, dispositif de commande de moteur et système pour la mise en oeuvre d'un procédé Withdrawn EP2906802A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012020490.6A DE102012020490B3 (de) 2012-10-10 2012-10-10 Verfahren zur Ausfallerkennung von Injektoren in einem Verbrennungsmotor, Motorsteuergerät und System zur Durchführung eines Verfahrens
PCT/EP2013/002993 WO2014056594A1 (fr) 2012-10-10 2013-10-04 Procédé de détection de défaillance d'injecteurs dans un moteur à combustion interne, dispositif de commande de moteur et système pour la mise en oeuvre d'un procédé

Publications (1)

Publication Number Publication Date
EP2906802A1 true EP2906802A1 (fr) 2015-08-19

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EP13774074.2A Withdrawn EP2906802A1 (fr) 2012-10-10 2013-10-04 Procédé de détection de défaillance d'injecteurs dans un moteur à combustion interne, dispositif de commande de moteur et système pour la mise en oeuvre d'un procédé

Country Status (5)

Country Link
US (1) US9689329B2 (fr)
EP (1) EP2906802A1 (fr)
CN (1) CN104838118B (fr)
DE (1) DE102012020490B3 (fr)
WO (1) WO2014056594A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013222556A1 (de) * 2013-11-06 2015-05-07 Bayerische Motoren Werke Aktiengesellschaft Verfahren zur Erkennung von defekten Einspritzdüsen eines Verbrennungsmotors
US10345195B2 (en) * 2016-03-07 2019-07-09 Ge Global Sourcing Llc Method and systems for diagnosing an engine
US11509256B2 (en) 2016-03-07 2022-11-22 Transportation IP Holdings, LLP Method and system for an engine
JP6669637B2 (ja) * 2016-11-25 2020-03-18 ヤンマー株式会社 内燃機関の診断装置および診断方法、並びに、内燃機関の制御装置および制御方法
JP6610567B2 (ja) * 2017-01-16 2019-11-27 トヨタ自動車株式会社 エンジン装置
FR3086387B1 (fr) * 2018-09-24 2020-08-28 Continental Automotive France Procede de determination de la position d'un vilebrequin de vehicule automobile
US11002214B1 (en) * 2019-10-18 2021-05-11 GM Global Technology Operations LLC Early detection of fuel injectors with manufacturing issues

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2843871B2 (ja) * 1990-05-14 1999-01-06 本田技研工業株式会社 内燃エンジンの燃焼異常検出装置
DE4243178B4 (de) * 1992-12-19 2005-07-14 Robert Bosch Gmbh Verfahren zur Erkennung undichter Einspritzventile bei einer Brennkraftmaschine
DE19626690B4 (de) * 1996-07-03 2008-12-11 Robert Bosch Gmbh Verfahren und Vorrichtung zur Überwachung eines Kraftstoffzumeßsystems einer Brennkraftmaschine
US6021758A (en) * 1997-11-26 2000-02-08 Cummins Engine Company, Inc. Method and apparatus for engine cylinder balancing using sensed engine speed
DE10055192C2 (de) * 2000-11-07 2002-11-21 Mtu Friedrichshafen Gmbh Rundlaufregelung für Dieselmotoren
DE10235665A1 (de) * 2002-07-31 2004-02-12 Conti Temic Microelectronic Gmbh Regelung der Betriebsweise einer Brennkraftmaschine
DE102006056860A1 (de) * 2006-12-01 2008-06-05 Conti Temic Microelectronic Gmbh Verfahren und Vorrichtung zur Steuerung der Betriebsweise einer Brennkraftmaschine
SE0701120L (sv) * 2007-05-09 2008-11-10 Scania Cv Abp Metod och datorprogramprodukt för att identifiera en felfungerande cylinder i en flercylindrig förbränningsmotor
DE102008032174B4 (de) * 2008-01-16 2022-07-07 Vitesco Technologies Germany Gmbh Verfahren zur Identifikation von Zylindern einer Brennkraftmaschine bei Auftreten von zylinderindividuellen Ereignissen
US8256278B2 (en) * 2010-04-29 2012-09-04 GM Global Technology Operations LLC Engine misfire detection systems and methods using discrete fourier transform approximation
WO2013023046A1 (fr) * 2011-08-10 2013-02-14 Thompson Automotive Labs Llc Procédés et appareil d'analyse de moteur et analyse de moteur à distance
US10036335B2 (en) * 2011-09-15 2018-07-31 General Electric Company Systems and methods for diagnosing an engine
JP5459302B2 (ja) * 2011-12-26 2014-04-02 株式会社デンソー 内燃機関制御システムの異常診断装置
DE102012020489B4 (de) * 2012-10-10 2014-04-30 Mtu Friedrichshafen Gmbh Verfahren zur Angleichung eines Einspritzverhaltens von Injektoren in einem Verbrennungsmotor, Motorsteuergerät und System zur Angleichung eines Einspritzverhaltens

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2014056594A1 *

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DE102012020490B3 (de) 2014-03-13
US20150211425A1 (en) 2015-07-30
WO2014056594A1 (fr) 2014-04-17
HK1213616A1 (zh) 2016-07-08
CN104838118B (zh) 2019-01-18
US9689329B2 (en) 2017-06-27

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