EP1005609B1 - Procede permettant de commander le recyclage des gaz d'echappement d'un moteur a combustion interne - Google Patents

Procede permettant de commander le recyclage des gaz d'echappement d'un moteur a combustion interne Download PDF

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Publication number
EP1005609B1
EP1005609B1 EP98933582A EP98933582A EP1005609B1 EP 1005609 B1 EP1005609 B1 EP 1005609B1 EP 98933582 A EP98933582 A EP 98933582A EP 98933582 A EP98933582 A EP 98933582A EP 1005609 B1 EP1005609 B1 EP 1005609B1
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EP
European Patent Office
Prior art keywords
signal
correction
engine
basic
vehicle
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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
EP98933582A
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German (de)
English (en)
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EP1005609A1 (fr
Inventor
Bernd Hülsmann
Martin Lutat
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Deutz AG
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Deutz AG
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D21/00—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas
    • F02D21/06—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air
    • F02D21/08—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air the other gas being the exhaust gas of engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
    • F02D41/1402—Adaptive control
    • 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
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M2026/001—Arrangements; Control features; Details
    • F02M2026/004—EGR valve controlled by a temperature signal or an air/fuel ratio (lambda) signal

Definitions

  • the invention relates to a method and a device for controlling the exhaust gas recirculation in a self-igniting internal combustion engine in particular, which has a crankcase, at least one cylinder and a cylinder head with an intake line and an exhaust gas line, which can be connected via an exhaust gas recirculation line, the exhaust gas recirculation rate from a control device is controlled as a function of operating parameters of the internal combustion engine, the control device having a basic map with the parameters engine speed n e and the amount of fuel delivered f f per work cycle, a vehicle acceleration correction device also emitting a vehicle acceleration correction signal and the basic signals of the basic map being emitted by correction signals further correction devices that can be activated as required can be influenced.
  • Such a method for controlling the exhaust gas recirculation is off DE-A 196 31 112 known. It is according to this document provide a control device for an internal combustion engine so that when a change in the operating conditions of the Engine or acceleration of the fuel injection timing control is predicted. For this, from a basic map based on the speed and fuel quantity is spanned, with corrections depending on the acceleration / dynamics of the coolant temperature and / or the speed are provided. These corrections are as multiplicative or additive corrections are provided. Furthermore is a arbitrarily adapted factor provided for the circumstances. In Agreement with a difference between an actual Fuel injection timing and the predicted target fuel injection timing a target exhaust gas recirculation area, i. H. a Exhaust gas recirculation quantity or rate, corrected.
  • a target exhaust gas recirculation area i. H. a Exhaust gas recirculation quantity or rate
  • the invention is based, a method and a task Device for controlling the exhaust gas recirculation in an internal combustion engine to provide the most diverse operating conditions an internal combustion engine can take into account.
  • a use correction device which outputs a usage correction signal that corresponds to the basic signal is applied multiplicatively.
  • This usage correction device generally takes into account the intended purpose the internal combustion engine and sets corrective signals for this with which the basic signals are superimposed. Possible Uses are, for example, the use of the internal combustion engine in a vehicle, an agricultural machine a construction vehicle or device.
  • a further development of the invention is an internal combustion engine acceptance correction device provided that also corresponding Issues correction signals.
  • this correction device are consequently during the acceptance run of the internal combustion engine after its manufacture and assembly stored basic correction values that especially on the respective acceptance run of the internal combustion engine are tailored. These include basic values too understand the type and design of the internal combustion engine.
  • a vehicle data correction device is also provided. In This can then be relevant vehicle data, such as Vehicle data and area of application can be saved.
  • An ambient pressure correction device is also provided, which in particular when using the internal combustion engine or the vehicle is used in the mountains.
  • a coolant temperature correction device provided the coolant temperature of the internal combustion engine taken into account when controlling exhaust gas recirculation.
  • a dynamic correction device that takes into account the driving style of the driver of a vehicle.
  • this dynamic correction signal go the speed of the internal combustion engine and the amount of fuel supplied per cycle, where it is determined from both whether there is a stationary driving state or an extreme driving style (accelerator pedal change between Zero position and full load position). If this facility The existence of dynamic operation is determined, the difference a correction value for the previous signals with this device added to the basic signal.
  • each individual point of the characteristic curve defines a specific exhaust gas recirculation rate. This respective point is determined by the input variables “speed of the internal combustion engine n e ” and “fuel quantity m f supplied to the internal combustion engine per work cycle”.
  • the quantity of fuel supplied m f per work cycle is defined as the quantity of fuel supplied per stroke of one of the injection pump elements of the internal combustion engine.
  • the basic output signal from this basic characteristic diagram 1 determines the exhaust gas recirculation quantity as a function of the input variables mentioned.
  • This basic signal can be influenced by the correction devices explained below, which emit corresponding correction signals, and thus the actual exhaust gas recirculation rate can be adapted to the given operating conditions of the internal combustion engine.
  • an adjustment is made by three correction devices, the basic parameters when operating the internal combustion engine and take into account the multiplicative of the basic signal become.
  • This is initially an engine usage correction device 2, according to the performance group and / or the intended use of the internal combustion engine, for example in a commercial vehicle, in an agricultural one Machine, in a construction vehicle or device, a corresponding Engine use correction signal.
  • This corresponding signal can be in a central electronics control device, in which the entire system can be integrated become.
  • an internal combustion engine acceptance correction device 3 which has a corresponding correction signal, that created during the acceptance run of the internal combustion engine will give up.
  • this correction signal u. a. in particular Engine-specific data, such as the number of cylinders, Art the injector, etc., find influence.
  • Vehicle data correction device 4 is provided, which is a vehicle-specific Issues correction signal.
  • this Correction device can contain relevant vehicle-specific data, such as the special intake and exhaust system, but possibly also vehicle weight, gear ratios and area of application (e.g. construction site, local or long-distance traffic), Find influence.
  • An ambient pressure correction device 5 is also provided, in which a correction curve dependent on the measured ambient pressure p a is stored. This takes into account, in particular, the ambient pressure p a falling with increasing height, which has a direct influence on the filling of the internal combustion engine and thus the combustion.
  • a vehicle acceleration correction device 6 which processes various input signals explained below and ultimately emits a corresponding correction signal, which represents an acceleration evaluation.
  • Two comparators 7a, 7b are provided at the input of the vehicle acceleration correction device, the comparator 7a receiving a measured value m s for the accelerator pedal position, which is compared with an injection pump regulator preset value m d , which represents a torque limit, and emits an output signal when exceeded.
  • the injection pump regulator default value m d is directly input into the comparator 7b, this value being compared here with a regulator default value m r , which corresponds to a smoke limit value, and if a limit value is exceeded, an output signal is also output from the comparator 7b.
  • the output signals of the two comparators 7a, 7b are combined in an AND element 8, the AND element emitting a switching signal from both comparators 7a and 7b in the presence of a disturbance variable, corresponding to an output signal.
  • This switching signal is fed to an actuating element 9, the actuating element 9 connecting the output of the actuating element 9 to an input 0, the input signal of which is described below, when an output signal from the AND element 8 is present.
  • the input of the actuator 9 is connected to the input 1, so that no vehicle acceleration correction signal is delivered.
  • This evaluation device 10 has a characteristic curve which determines the extent of the closing of the exhaust gas recirculation as a function of the incoming signal.
  • the output signal of the evaluation device 10 is - as stated above - applied as a vehicle acceleration correction signal to the output signals of the basic map 1 via the actuator 9.
  • an internal combustion engine coolant temperature correction device 11 is provided, into which the current coolant temperature t w is input and which determines and emits a correction signal from a correction curve. In this case, it can also be determined whether the internal combustion engine is in the warm-up phase after a cold start.
  • a dynamic correction device 12 which likewise emits a correction signal, but which, in contrast to the previous signals, is added to the basic signal.
  • This correction value is determined from the speed n e of the internal combustion engine and the supplied fuel mass m f per work cycle, the speed n e of the internal combustion engine being fed to a speed-dependent correction characteristic curve 13 and the supplied fuel mass m f to a damped differentiator 14.
  • the output signal of the damped differentiating element 14 is forwarded to a minimum / maximum limiter 15, values between 0 and 1 being output as output values.
  • the value 0 represents a stationary driving state and the value 1 an extreme driving state.
  • the value 0 can be compared with a quiet driving style with a constant accelerator pedal position, while the value 1 can be compared with a very restless driving style with a constantly moving accelerator pedal leaves. All values between 0 and 1 are permissible and are processed.
  • a device 16 which takes into account whether the engine brake is on or off or whether it is on Start process is present. Is the engine brake switched on or is it engaged? Engine start before, the switch 17 is switched to input 0, so that the exhaust gas recirculation during these operating states is also out of order.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Exhaust-Gas Circulating Devices (AREA)

Claims (9)

  1. Procédé de réglage du recyclage de gaz d'échappement dans un moteur à combustion interne en particulier à autoallumage qui présente un carter de vilebrequin, au moins un cylindre et une tête de cylindre avec une conduite d'aspiration et une conduite de gaz d'échappement qui peuvent être raccordées via une conduite de recyclage de gaz d'échappement, procédé dans lequel le degré de recyclage des gaz d'échappement est réglé par un équipement de commande en fonction de paramètres de fonctionnement du moteur à combustion interne, l'équipement de commande présentant un diagramme caractéristique de base avec les paramètres régime ne de moteur à combustion interne et débit mf de carburant refoulé par fonctionnement cyclique, un équipement de correction pour accélération de véhicule automobile délivrant en outre un signal de correction pour accélération de véhicule automobile et les signaux de base du diagramme caractéristique de base étant influençables par d'autres équipements de correction pouvant être raccordés en cas de besoin et délivrant des signaux de correction, caractérisé en ce que le signal de correction pour accélération de véhicule automobile est superposé par multiplication au signal de base, en ce que l'équipement de correction pour accélération de véhicule automobile (6) tient compte des paramètres :
    a) valeur prédéterminée de régulateur de pompes d'injection,
    b) position de pédale d'accélérateur,
    c) valeur prédéterminée de régulateur
       correspondant à la limite de la fumée, et en ce que lorsque b) est > a) et a) est > c) il y a alors une grandeur perturbatrice dont on tient compte conformément aux paramètres évalués a) et c).
  2. Procédé selon la revendication 1, caractérisé en ce qu'un équipement de correction pour utilisation de moteurs à combustion interne (2) délivre un signal de correction pour utilisation de moteurs à combustion interne qui est superposé par multiplication au signal de base.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce qu'un équipement de correction pour réception de moteurs à combustion interne (3) délivre un signal de correction pour réception de moteurs à combustion interne qui est superposé par multiplication au signal de base.
  4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un équipement de correction pour données de véhicule automobile (4) délivre un signal de correction pour données de véhicule automobile qui est superposé par multiplication au signal de base.
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un dispositif de correction pour la pression ambiante (5) délivre un signal de correction pour la pression ambiante qui est superposé par multiplication au signal de base.
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un dispositif de correction pour température d'agent réfrigérant de moteurs à combustion interne (11) délivre un signal de correction pour température d'agent réfrigérant de moteurs à combustion interne qui est superposé par multiplication au signal de base.
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un dispositif de correction pour la dynamique (12) délivre un signal de correction pour la dynamique qui est superposé par multiplication au signal de régime et en ce que ce signal de correction pour le régime et la dynamique est superposé par addition au signal de base.
  8. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le recyclage de gaz d'échappement est arrêté en cas de frein-moteur actif ainsi que pendant l'opération de démarrage.
  9. Dispositif de réglage du recyclage de gaz d'échappement dans un moteur à combustion interne en particulier à autoallumage qui présente un carter de vilebrequin, au moins un cylindre et une tête de cylindre avec une conduite d'aspiration et une conduite de gaz d'échappement qui peuvent être raccordées via une conduite de recyclage de gaz d'échappement commandée par un équipement de commande en fonction de paramètres de fonctionnement du moteur à combustion interne, l'équipement de commande présentant un diagramme caractéristique de base comportant les paramètres régime ne de moteur à combustion interne et débit mf de carburant refoulé par fonctionnement cyclique, un équipement de correction pour accélération de véhicule automobile délivrant en outre un signal de correction pour accélération de véhicule automobile étant présent et les signaux de base du diagramme caractéristique de base étant influençables par d'autres équipements de correction pouvant être raccordés en cas de besoin et délivrant des signaux de correction, caractérisé en ce que le signal de correction pour accélération de véhicule automobile tenant compte des paramètres :
    a) valeur prédéterminée de régulateur de pompes d'injections
    b) position de pédale d'accélérateur,
    c) valeur prédéterminée de régulateur correspondant à la limite de la fumée,
    est superposé par multiplication au signal de base et en ce que, lorsque b) est > a) et a) est > c) il y a alors une grandeur de perturbation dont on tient compte conformément aux paramètres évalués a) et c).
EP98933582A 1997-08-22 1998-05-30 Procede permettant de commander le recyclage des gaz d'echappement d'un moteur a combustion interne Expired - Lifetime EP1005609B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19736522 1997-08-22
DE19736522A DE19736522A1 (de) 1997-08-22 1997-08-22 Verfahren zur Steuerung der Abgasrückführung bei einer Brennkraftmaschine
PCT/EP1998/003254 WO1999010644A1 (fr) 1997-08-22 1998-05-30 Procede permettant de commander le recyclage des gaz d'echappement d'un moteur a combustion interne

Publications (2)

Publication Number Publication Date
EP1005609A1 EP1005609A1 (fr) 2000-06-07
EP1005609B1 true EP1005609B1 (fr) 2002-09-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP98933582A Expired - Lifetime EP1005609B1 (fr) 1997-08-22 1998-05-30 Procede permettant de commander le recyclage des gaz d'echappement d'un moteur a combustion interne

Country Status (6)

Country Link
US (1) US6283101B1 (fr)
EP (1) EP1005609B1 (fr)
JP (1) JP2001514357A (fr)
CN (1) CN1088152C (fr)
DE (2) DE19736522A1 (fr)
WO (1) WO1999010644A1 (fr)

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JP4850801B2 (ja) * 2007-09-07 2012-01-11 トヨタ自動車株式会社 内燃機関装置およびこれを搭載する車両、内燃機関装置の制御方法
US20120067331A1 (en) * 2010-09-16 2012-03-22 Caterpillar Inc. Controlling engine braking loads using cat regeneration system (CRS)
JP2014202137A (ja) * 2013-04-05 2014-10-27 愛三工業株式会社 エンジンの排気還流装置
DE102013209037A1 (de) * 2013-05-15 2014-11-20 Robert Bosch Gmbh Verfahren und Vorrichtung zum Betrieb einer Abgasrückführung einer selbstzündenden Brennkraftmaschine insbesondere eines Kraftfahrzeugs
CN106321273A (zh) * 2015-07-03 2017-01-11 常州科普动力机械有限公司 一种发动机用气缸盖及应用该气缸盖的发动机
CN106285978B (zh) * 2016-10-20 2019-05-03 江门市大长江集团有限公司 燃油内燃机控制方法及装置
CN115614170B (zh) * 2022-09-27 2024-08-20 东风汽车集团股份有限公司 Egr阀目标开度的修正优化方法、装置、设备及存储介质
CN115559822B (zh) * 2022-09-27 2024-08-20 东风汽车集团股份有限公司 目标egr率的控制方法
CN115680915B (zh) * 2022-09-30 2024-08-20 东风汽车集团股份有限公司 最小egr率的设计方法、装置、设备及存储介质

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Also Published As

Publication number Publication date
DE59805634D1 (de) 2002-10-24
JP2001514357A (ja) 2001-09-11
EP1005609A1 (fr) 2000-06-07
WO1999010644A1 (fr) 1999-03-04
CN1267359A (zh) 2000-09-20
US6283101B1 (en) 2001-09-04
DE19736522A1 (de) 1999-02-25
CN1088152C (zh) 2002-07-24

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