EP1074719B1 - Méthode de contrôle d'un moteur à combustion interne - Google Patents

Méthode de contrôle d'un moteur à combustion interne Download PDF

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Publication number
EP1074719B1
EP1074719B1 EP00114484A EP00114484A EP1074719B1 EP 1074719 B1 EP1074719 B1 EP 1074719B1 EP 00114484 A EP00114484 A EP 00114484A EP 00114484 A EP00114484 A EP 00114484A EP 1074719 B1 EP1074719 B1 EP 1074719B1
Authority
EP
European Patent Office
Prior art keywords
emergency
internal combustion
combustion engine
running
requirements
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
EP00114484A
Other languages
German (de)
English (en)
Other versions
EP1074719A2 (fr
EP1074719A3 (fr
Inventor
Dieter Volz
Thomas Frenz
Peter Klee
Hansjoerg Bochum
Winfried Langer
Michael Oder
Matthias Kuessel
Bernd Roos
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1074719A2 publication Critical patent/EP1074719A2/fr
Publication of EP1074719A3 publication Critical patent/EP1074719A3/fr
Application granted granted Critical
Publication of EP1074719B1 publication Critical patent/EP1074719B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F02D41/24—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
    • F02D41/263—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor the program execution being modifiable by physical parameters
    • 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
    • F02D2041/227—Limping Home, i.e. taking specific engine control measures at abnormal conditions

Definitions

  • the invention relates to a method for operating a Internal combustion engine, in particular a motor vehicle, at the fuel, especially in at least two Operating modes, injected into a combustion chamber, at in dependence on a plurality of Emergency running requirements acted on the internal combustion engine and in which the majority of runflat requirements be coordinated.
  • the invention relates to a corresponding control device for an internal combustion engine in particular for a motor vehicle.
  • Such a method and such a control device are known for example from DE 197 31 972 A1. There be different emergency operation functions in different program levels of a control device processed.
  • fuel is in a homogeneous operation during the intake phase or in a shift operation during the Compression phase in the combustion chamber of the internal combustion engine injected.
  • the homogeneous operation is preferably for the Full load operation of the internal combustion engine provided while the shift operation for idle and part load operation suitable is. For example, depending on one Desired target mode is in such a direct injection internal combustion engine between the switched over.
  • the internal combustion engine is continuously on possible Malfunctions checked. Some critical malfunctions can a special emergency operation of the internal combustion engine require. If such a critical error is detected, so are from the function which the error has taken all the necessary measures, to trigger a run-flat. Be multiple errors of Internal combustion engine about the same time or short term determined one after the other, this has the consequence that several such emergency conditions on the Engage internal combustion engine.
  • the object of the invention is a method for operating to create an internal combustion engine with which in the case one or more malfunctions a safe emergency operation achieved and realized.
  • the plurality of Emergency running requirements prioritized.
  • the Emergency running requirements are not feasible, so they stand for example. in contradiction to each other, so finds a prioritization of pending emergency requirements.
  • the invention provides that the Prioritization according to a given priority list is carried out. This makes it possible to set the priorities flexible and flexible to change.
  • the prioritized emergency request a system response out. So it is only from the emergency run request with the highest priority triggered a system reaction. there It may be a shutdown of the fuel supply or order a reset of the controller or the like act.
  • the prioritized emergency request has a desired one Operating mode result. In this case, so from the Emergency run request with the highest priority one certain mode requested, then in the from the Internal combustion engine is switched, if they are not already exists.
  • the prioritized Emergency run request is stored. That's it possible, an error log or an emergency protocol from which later the occurred error can be reconstructed.
  • a Memory element used for a control unit Internal combustion engine in particular of a motor vehicle, is provided. It is on the memory element a Program stored on a computing device, especially on a microprocessor, executable and to Execution of the method according to the invention is suitable.
  • a storage element can in particular an electrical Storage medium are used, for example, a Read-only memory or a flash memory.
  • FIG 1 is an internal combustion engine 1 of a Motor vehicle shown, in which a piston 2 in a Cylinder 3 is reciprocable.
  • the cylinder 3 is with a combustion chamber 4 provided, inter alia, by the Piston 2, an intake valve 5 and an exhaust valve. 6 is limited.
  • an intake valve 5 is an intake pipe. 7 and with the exhaust valve 6, an exhaust pipe 8 is coupled.
  • the intake pipe 7 In the intake pipe 7 is a rotatable throttle valve 11th accommodated, via the intake pipe 7 air supplied is. The amount of air supplied depends on the Angular position of the throttle valve 11.
  • the exhaust pipe 8 In the exhaust pipe 8 is housed a catalyst 12, the cleaning of the by the combustion of the fuel resulting exhaust gases serves.
  • Exhaust gas recirculation pipe 13 From the exhaust pipe 8 performs an exhaust gas recirculation pipe 13 back to the intake pipe 7.
  • a Exhaust gas recirculation valve 14 accommodated, with the amount of set in the intake pipe 7 recirculated exhaust gas can be.
  • the exhaust gas recirculation pipe 13 and the Exhaust gas recirculation valve 14 form a so-called Exhaust gas recirculation.
  • Tank vent line 16 From a fuel tank 15 leads a Tank vent line 16 to the intake 7.
  • a tank vent valve 17th housed with the amount of the intake pipe. 7 supplied fuel vapor from the fuel tank 15th is adjustable.
  • the tank vent line 16 and the Tank vent valve 17 form a so-called Tank ventilation.
  • the piston 2 is activated by the combustion of the fuel the combustion chamber 4 in a reciprocating motion, the is transmitted to a crankshaft, not shown, and on this a torque exerts.
  • a controller 18 is of input signals 19 applied, measured by sensors operating variables represent the internal combustion engine 1. For example, that is Control unit 18 with an air mass sensor, a lambda sensor, a speed sensor and the like. Of another is the control unit 18 with an accelerator pedal sensor connected, which generates a signal indicating the position of a operated by a driver accelerator pedal and thus the indicates requested torque.
  • the controller 18 generates Output signals 20, with which via actuators or actuators the behavior of the internal combustion engine 1 are affected can.
  • the controller 18 with the Injector 9, the spark plug 10 and the throttle valve 11 and the like connected to and generates the Activation required signals.
  • the controller 18 is provided to the Control operating variables of the internal combustion engine 1 and / or to regulate.
  • the injection valve 9 in the combustion chamber 4 injected fuel mass of the Control unit 18, in particular with regard to a small Fuel consumption and / or a low Controlled pollutant development and / or regulated.
  • the controller 18 with a Microprocessor in a storage medium, especially in a flash memory a program stored, which is suitable to the said To perform control and / or regulation.
  • the internal combustion engine 1 of Figure 1 may in a plurality operated by operating modes. So it is possible the Internal combustion engine 1 in a homogeneous operation, a Shift operation, a so-called Kat heating and operate the same. This is explicitly stated on the German patent application DE 198 50 586.8 referenced.
  • a block 21 is provided, in which all Error bits and / or other system variables set or be stored, which led to an emergency run Internal combustion engine 1 should lead.
  • error bits can e.g. of engine functions or diagnostic functions or The like generated and passed to the block 21 become.
  • the error bits contained in the block 21 are called Emergency run request or emergency run request to a block 22 passed on a coordination of received Emergency running requirements. This coordination is only required if several emergency conditions come in short succession or about the same time and thus in competition with each other. Is only one single emergency request, it will - as yet will be described - readily further processed.
  • step A Decides on several emergency conditions received the block 22 in a step A first, whether the Emergency running requirements are at all feasible, or whether they contradict each other. There is no contradiction of the entered emergency conditions, they will become - As will be described - easily further processed.
  • This prioritization can be done according to a preset Priority list or flexible from company sizes of Internal combustion engine 1 are performed. Based on this prioritization will then be the prioritized Emergency running request as described below further processed.
  • Block 23 may be e.g. to act on engine functions, with which controlled the fuel supply and / or regulated becomes.
  • the selected one (s) may System reaction (s) e.g. in one of the triggering in block 21 Function associated error path of a memory 24th be stored.
  • a block 25 is further provided, which is a coordination of the requested Operating modes is. These operating modes can be from various functions of the internal combustion engine. 1 be requested. According to the figure 2 apply a Plurality of functions block 25.
  • From the block 25 is by means of a block 27 that Detected operating mode in which the internal combustion engine 1 operate according to the priorities of the block 25 is. This determination is made according to a predetermined Procedures performed, such as in the German Patent Application DE 198 50 586.8 already mentioned is described.
  • Sollbyte 28 is shown, which is the Storage of the described modes of operation Internal combustion engine 1 in the control unit 18 is used.
  • the Target byte 28 has eight bits, not all of which bits need to be occupied.
  • the different operating modes of the Internal combustion engine 1 are each by one of the bits in represents the desired byte 28.
  • the Sollbyte 28 shown in Figure 2 is to provided, the desired mode, ie the desired Mode of operation of the internal combustion engine 1 to mark. Should the internal combustion engine 1, for example, in homogeneous operation is operated as desired desired mode, so is in the desired byte 28, the corresponding bit is set to "1", while the other relevant bits are all set to "0" are. In the Sollbyte 28 is thus always one of relevant bits set to "1" while the other bits are set to "0".
  • the bit set to "1" indicates the desired one Target mode in which the internal combustion engine 1 then is switched, provided that this mode is not yet performs.

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

Claims (8)

  1. Procédé de gestion d'un moteur à combustion interne (1), notamment d'un véhicule automobile, selon lequel le carburant est injecté dans une chambre de combustion (4), notamment selon au moins deux modes de fonctionnement, une action étant exercée sur le moteur (1) en fonction d'un certain nombre de demandes de fonctionnement de secours, avec coordination (22) de ces demandes entre elles,
    caractérisé en ce qu'
    une priorité (B) est affectée à chaque demande de fonctionnement de secours, selon une liste de priorités prédéfinie.
  2. Procédé selon la revendication 1,
    caractérisé en ce que
    la pluralité des demandes de fonctionnement d'urgence est contrôlée en ce qui concerne leur conversion.
  3. Procédé selon la revendication 2,
    caractérisé en ce qu'
    on détermine si la pluralité des demandes de fonctionnement d'urgence sont en opposition entre elles.
  4. Procédé selon une des revendications 1 à 3,
    caractérisé en ce que
    la demande de fonctionnement d'urgence qui est prioritaire déclenche une réaction (C) du système.
  5. Procédé selon une des revendications 1 à 4,
    caractérisé en ce que
    la demande de fonctionnement d'urgence qui est prioritaire a pour conséquence (26) un mode de fonctionnement désiré.
  6. Procédé selon une des revendications 1 à 5,
    caractérisé en ce que
    la demande de fonctionnement d'urgence qui est prioritaire fait l'objet d'un enregistrement (D).
  7. Elément d'enregistrement, notamment read-only-memory ou flash-memory, pour un appareil de commande (18) d'un moteur à combustion interne (1), notamment d'un véhicule automobile, sur lequel est enregistré un programme prévu pour appliquer le procédé selon une des revendications 1 à 6.
  8. Appareil de commande (18) pour un moteur à combustion interne (1), notamment pour un véhicule automobile, cet appareil étant programmé pour appliquer le procédé selon une des revendications 1 à 6.
EP00114484A 1999-08-06 2000-07-06 Méthode de contrôle d'un moteur à combustion interne Expired - Lifetime EP1074719B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19937194A DE19937194A1 (de) 1999-08-06 1999-08-06 Verfahren zum Betreiben einer Brennkraftmaschine
DE19937194 1999-08-06

Publications (3)

Publication Number Publication Date
EP1074719A2 EP1074719A2 (fr) 2001-02-07
EP1074719A3 EP1074719A3 (fr) 2003-05-02
EP1074719B1 true EP1074719B1 (fr) 2005-03-09

Family

ID=7917476

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00114484A Expired - Lifetime EP1074719B1 (fr) 1999-08-06 2000-07-06 Méthode de contrôle d'un moteur à combustion interne

Country Status (3)

Country Link
EP (1) EP1074719B1 (fr)
JP (1) JP2001065394A (fr)
DE (2) DE19937194A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10308459A1 (de) 2003-02-21 2004-09-02 Robert Bosch Gmbh Verfahren, Computerprogramm und Steuergerät zum Betreiben einer Brennkraftmaschine
DE102006061889B3 (de) * 2006-12-28 2008-03-27 Siemens Ag Verfahren und Vorrichtung zur Ermittlung einer optimierten Notlauffunktion bei einem mit einem Fehler behafteten Motor eines Kraftfahrzeugs

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3321837B2 (ja) * 1992-08-06 2002-09-09 株式会社日立製作所 車両の診断制御方法
WO1994004809A1 (fr) * 1992-08-11 1994-03-03 Nippondenso Co., Ltd. Dispositif d'autodiagnostic pour vehicule
DE19731972C2 (de) * 1997-07-24 2001-11-22 Siemens Ag Verfahren zum Steuern einer Brennkraftmaschine
DE19850586A1 (de) * 1998-11-03 2000-05-04 Bosch Gmbh Robert Verfahren zum Betreiben einer Brennkraftmaschine
DE19906378A1 (de) * 1999-02-16 2000-08-17 Bosch Gmbh Robert Verfahren und Vorrichtung zum Betrieb einer Brennkraftmaschine

Also Published As

Publication number Publication date
DE19937194A1 (de) 2001-02-22
EP1074719A2 (fr) 2001-02-07
JP2001065394A (ja) 2001-03-13
DE50009708D1 (de) 2005-04-14
EP1074719A3 (fr) 2003-05-02

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