EP1074719A2 - 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
EP1074719A2
EP1074719A2 EP00114484A EP00114484A EP1074719A2 EP 1074719 A2 EP1074719 A2 EP 1074719A2 EP 00114484 A EP00114484 A EP 00114484A EP 00114484 A EP00114484 A EP 00114484A EP 1074719 A2 EP1074719 A2 EP 1074719A2
Authority
EP
European Patent Office
Prior art keywords
internal combustion
combustion engine
emergency
emergency running
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.)
Granted
Application number
EP00114484A
Other languages
German (de)
English (en)
Other versions
EP1074719B1 (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 of a motor vehicle, at the fuel, especially in at least two Operating modes, is injected into a combustion chamber, and in which depending on a plurality of Emergency running requirements acted on the internal combustion engine becomes.
  • the invention also relates to a corresponding one Internal combustion engine and a corresponding control unit for an internal combustion engine in each case in particular Motor vehicle.
  • Such a method such an internal combustion engine and such a control unit are for example from a so-called gasoline direct injection known.
  • the homogeneous operation is preferably for the Full load operation of the internal combustion engine is provided during shift operation for idle and part-load operation suitable is.
  • the desired target operating mode is such direct injection internal combustion engine between the mentioned operating modes.
  • the internal combustion engine is continuously updated for possible Malfunctions checked. Some critical malfunctions can a special emergency operation of the internal combustion engine require. If such a critical error is found, so will be from the function that made the error has taken all necessary measures, to trigger an emergency run. If there are multiple errors in the Internal combustion engine at about the same time or at short notice determined successively, this has the consequence that several such emergency running requirements on the Acting 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 is achieved and realized.
  • This task is initiated in a procedure mentioned type according to the invention solved in that the Most emergency operations requests are coordinated.
  • this function only indicates the emergency operation request an emergency run coordination.
  • the invention prioritizes the majority of emergency running requests.
  • the Prioritization of the upcoming emergency running requests take place. This means that one of the emergency run requests received is the highest Priority assigned and this emergency operation request is executed first. In this way the Contradiction resolved and conflicts between the Emergency running requirements are solved.
  • the prioritized emergency running request has a desired one Operating mode.
  • the Emergency priority request one certain operating mode is requested, in which the Internal combustion engine is switched, unless it is already exists.
  • control Program stored on a computing device, in particular on a microprocessor, executable and for Execution of the method according to the invention is suitable.
  • the invention is based on a Control stored program realized so that this control provided with the program in the same
  • the invention represents how the method for its Execution the program is suitable.
  • a control can in particular be an electrical storage medium for Use, for example, a read-only memory or a flash memory.
  • an internal combustion engine 1 is one Motor vehicle shown, in which a piston 2 in one Cylinder 3 is reciprocable.
  • the cylinder 3 is with a combustion chamber 4 provided, inter alia, by the Piston 2, an inlet valve 5 and an outlet valve 6 is limited.
  • the inlet valve 5 is an intake pipe 7 and an exhaust pipe 8 is coupled to the exhaust valve 6.
  • Fuel can be injected via the injection valve 9 the combustion chamber 4 are injected. With the spark plug 10 the fuel can be ignited in the combustion chamber 4.
  • the intake pipe 7 there is a rotatable throttle valve 11 housed, through which the intake pipe 7 air can be supplied is.
  • the amount of air supplied depends on the Angular position of the throttle valve 11 is in the exhaust pipe 8 a catalyst 12 housed, the cleaning of the exhaust gases generated by the combustion of the fuel serves.
  • An exhaust gas recirculation pipe 13 leads back from the exhaust pipe 8 to the intake pipe 7.
  • a Exhaust gas recirculation valve 14 accommodated with which the amount of recirculated exhaust gas set in the intake pipe 7 can be.
  • the exhaust gas recirculation pipe 13 and that Exhaust gas recirculation valve 14 form a so-called Exhaust gas recirculation.
  • Tank ventilation line 16 One leads from a fuel tank 15 Tank ventilation line 16 to the intake pipe 7.
  • Tank vent line 16 In the Tank vent line 16 is a tank vent valve 17 housed with which the amount of the intake pipe 7th supplied fuel vapor from the fuel tank 15 is adjustable.
  • the tank ventilation line 16 and that Tank vent valve 17 form a so-called Tank ventilation.
  • the piston 2 is in by the combustion of the fuel the combustion chamber 4 in a reciprocating motion, the is transmitted to a crankshaft, not shown, and exerts a torque on them.
  • a control device 18 is of input signals 19 acted upon, the operating variables measured by sensors represent the internal combustion engine 1.
  • the control unit 18 is also provided with an accelerator pedal sensor connected, which generates a signal that the position of a accelerator pedal operated by a driver and thus that specifies requested torque.
  • the control unit 18 generates Output signals 20 with which via actuators or actuators the behavior of the internal combustion engine 1 can be influenced can.
  • the control unit 18 with the Injector 9, the spark plug 10 and the throttle valve 11 and the like connected and generated to their Control necessary signals.
  • control unit 18 is provided for the To control operating variables of the internal combustion engine 1 and / or to regulate.
  • the injector 9 injected into the combustion chamber 4 fuel mass from the Control unit 18, in particular with regard to a small one Fuel consumption and / or a low Controlled and / or regulated pollutant development.
  • the control unit 18 is equipped with a Microprocessor provided in a storage medium, a program, especially in a flash memory has saved, which is suitable for the named Control and / or regulation to perform.
  • the internal combustion engine 1 of Figure 1 can in a plurality operated by operating modes. So it is possible that Internal combustion engine 1 in a homogeneous operation, one Shift operation, a so-called cat heating and the like are operated. This is expressly stated on referred to the German patent application DE 198 50 586.8.
  • Internal combustion engine 1 can be switched back and forth or switched over become. Such switches are made by the control unit 18 performed. A switchover is triggered through the individual functions of the internal combustion engine 1. In the internal combustion engine 1, a plurality of such are Functions available, all of a specific operating mode request the internal combustion engine 1 and thus if necessary trigger a switchover between the operating modes.
  • Control unit 18 can be executed, and that too is suitable for an emergency operation of the internal combustion engine 1 realize.
  • a block 21 is provided in which all Error bits and / or other system variables set or are saved, which lead to an emergency run Internal combustion engine 1 should lead.
  • error bits can e.g. of engine functions or diagnostic functions or The like is generated and passed on to block 21 become.
  • the error bits contained in block 21 are called Emergency request or request to block 22 passed on a coordination of received Runs emergency operations. This coordination is only required if several emergency running requests arrive briefly one after the other or at about the same time and thus compete with each other. Is only one only emergency run request before, it will - as still will be described - processed further without further notice.
  • step A Decides if there are several emergency running requests the block 22 in step A first whether the Emergency running requirements are feasible at all, or whether they contradict each other. There is no contradiction of the received emergency operation requirements, these will be - as will be described - without further ado processed further.
  • This prioritization can be based on a predetermined Priority list or flexible of company sizes Internal combustion engine 1 are performed. Based on this prioritization then becomes the prioritized one Emergency running request as described below processed further.
  • Block 23 can e.g. to deal with engine functions with which controlled and / or regulated the fuel supply becomes.
  • step D the selected one or more System reaction / s e.g. in one of those triggering in block 21 Error path of a memory 24 assigned to the function can be saved.
  • a block 25 is also provided in FIG. 2, which is a coordination of the requested Operating modes. These operating modes can be from various functions of the internal combustion engine 1 be requested. According to FIG. 2, a Plurality of functions block 25.
  • a Emergency mode is a mode of operation desired for this emergency mode Internal combustion engine 1 selected. This emergency run or this Operating mode is indicated by an arrow 26 from block 22 triggered or specified.
  • Arrow 26 is thus one based on the received Desired mode requests to block 25 passed on. This makes it possible not only through the Block 23 directly or directly on certain functions the internal combustion engine 1 act, but it can also an action in the form of a via the block 25 desired operating mode.
  • Block 25 becomes block 25 by means of block 27 Operating mode determined in which the internal combustion engine 1 to operate according to the priorities of 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.
  • FIG. 2 shows a target byte 28 which the Storage of the operating modes described Internal combustion engine 1 is used in the control unit 18.
  • the Set byte 28 has eight bits, not all of which are bits must be occupied.
  • the different operating modes of the Internal combustion engine 1 are in each case by one of the bits in represents the target byte 28.
  • the target byte 28 shown in FIG. 2 is for this provided, the target mode, so the desired To mark the operating mode of the internal combustion engine 1. Should the internal combustion engine 1, for example, in homogeneous operation are operated as the desired target operating mode in the target byte 28 the corresponding bit is set to "1", while the other relevant bits are all set to "0" are. In the target byte 28 there is therefore always one of the relevant bits set to "1" while the other bits are set to "0".
  • the bit set to "1" indicates the desired one Target operating mode in which the internal combustion engine 1 then is switched, if you do not have this operating mode executes.

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)
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
DE19937194 1999-08-06
DE19937194A DE19937194A1 (de) 1999-08-06 1999-08-06 Verfahren zum Betreiben einer Brennkraftmaschine

Publications (3)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004074665A1 (fr) * 2003-02-21 2004-09-02 Robert Bosch Gmbh Procede, programme informatique et appareil de commande pour faire fonctionner un moteur a combustion interne

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US5506773A (en) * 1992-08-11 1996-04-09 Nippondenso Co., Ltd. Self-diagnosing apparatus for motor vehicles
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004074665A1 (fr) * 2003-02-21 2004-09-02 Robert Bosch Gmbh Procede, programme informatique et appareil de commande pour faire fonctionner un moteur a combustion interne
US7337060B2 (en) 2003-02-21 2008-02-26 Robert Bosch Gmbh Method, computer program and control unit for operating an internal combustion engine
CN100400835C (zh) * 2003-02-21 2008-07-09 罗伯特·博世有限公司 用于内燃机运转的方法和控制器

Also Published As

Publication number Publication date
DE50009708D1 (de) 2005-04-14
EP1074719B1 (fr) 2005-03-09
JP2001065394A (ja) 2001-03-13
EP1074719A3 (fr) 2003-05-02
DE19937194A1 (de) 2001-02-22

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