EP1029168B1 - Procede d'exploitation d'un moteur a combustion interne, en particulier, de vehicule automobile - Google Patents

Procede d'exploitation d'un moteur a combustion interne, en particulier, de vehicule automobile Download PDF

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Publication number
EP1029168B1
EP1029168B1 EP98961063A EP98961063A EP1029168B1 EP 1029168 B1 EP1029168 B1 EP 1029168B1 EP 98961063 A EP98961063 A EP 98961063A EP 98961063 A EP98961063 A EP 98961063A EP 1029168 B1 EP1029168 B1 EP 1029168B1
Authority
EP
European Patent Office
Prior art keywords
internal combustion
combustion engine
output power
function
change
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
EP98961063A
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German (de)
English (en)
Other versions
EP1029168A2 (fr
Inventor
Winfried Langer
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 EP1029168A2 publication Critical patent/EP1029168A2/fr
Application granted granted Critical
Publication of EP1029168B1 publication Critical patent/EP1029168B1/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
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1497—With detection of the mechanical response of the engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
    • F02D2200/1002—Output torque
    • F02D2200/1004—Estimation of the output torque
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2250/00—Engine control related to specific problems or objectives
    • F02D2250/18—Control of the engine output torque
    • 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
    • F02D41/18—Circuit arrangements for generating control signals by measuring intake air flow
    • F02D41/187—Circuit arrangements for generating control signals by measuring intake air flow using a hot wire flow sensor

Definitions

  • the invention relates to a method for recognizing a Error when operating an internal combustion engine in particular of a motor vehicle in which the Internal combustion engine output as a function of Company sizes of the same and in particular depending is controlled and / or regulated by a driver's request. Furthermore, the invention relates to an internal combustion engine especially for a motor vehicle, with a control unit to detect an error when operating the Internal combustion engine and for control and / or regulation, the power output by the internal combustion engine in Dependence on company sizes of the same and in particular depending on a driver request.
  • Such a method and one Internal combustion engines are, for example, from the German Patent application 196 09 242 known.
  • the object of the invention is a method for operating to create an internal combustion engine in which even smaller ones Sensor errors can be detected early.
  • This task is initiated in a procedure mentioned type or in an internal combustion engine of initially mentioned type solved according to the invention in that regardless of the control and / or regulation of the output a permissible change in the output during a predetermined period of time and an actual change in the power delivered during a corresponding predetermined period of time determined and compared with each other, and that in Depending on the comparison, an error signal is generated is or can be generated.
  • the tolerances of the sensors do not play Roll more.
  • an error signal is generated will when the actual change in the delivered Power during the specified period is greater than the permissible change in the output during the same predetermined period of time. It is then possible on the one hand, if necessary, the internal combustion engine in to transfer an emergency operation, or otherwise the To make drivers aware of the error and / or take other troubleshooting measures.
  • the operating variables acting on the internal combustion engine converted into moments, especially into a permissible or actual change one from the internal combustion engine given moments. This has particularly been the case with Torque-guided internal combustion engines, especially at so-called lean engines or with engines Direct injection, as a particularly effective way to Monitoring of the sensors exposed.
  • the realization of the inventive method in the form of an electrical Storage medium for a control unit Internal combustion engine, in particular of a motor vehicle is provided. It is on the electrical Storage medium a program stored on a Computing device, in particular on a microprocessor, executable and for executing the invention Process is suitable.
  • the Invention by on the electrical storage medium stored program realized so that this with the Program provided storage medium in the same way Invention represents how the method for carrying it out the program is suitable.
  • an internal combustion engine 1 is shown, the is provided with a combustion chamber in which a piston is housed. Furthermore, the combustion chamber is on Injector and a spark plug assigned. Will over the fuel injector into the combustion chamber injected, and this fuel is then by means of Spark plug ignites, so the resulting Combustion via the piston to a torque Transfer crankshaft. This has a rotation of the Crankshaft and thus the output of power by the Internal combustion engine 1 result.
  • the internal combustion engine 1 has a plurality of Provide sensors, including an air mass meter 2, an exhaust gas sensor 3 and a speed sensor 4.
  • the internal combustion engine 1 is an electronic control unit assigned with which in particular the combustion of the Fuel in the combustion chamber of the internal combustion engine 1 is controlled and / or regulated. For that purpose it is Control unit with a microprocessor provided in a Storage medium, especially in a read-only memory Has saved a program that is suitable for the carry out entire control and / or regulation.
  • the control unit is acted upon by input signals which Operating variables measured by sensors Represent internal combustion engine. Among other things, it is Control unit with the air mass meter 2, the exhaust gas sensor 3 and the speed sensor 4 connected. Furthermore, that is Control unit connected to a pedal encoder 5, the one Signal that generates the position of a driver actuatable accelerator pedal indicates.
  • the control unit generates output signals with which over Actuators the behavior of the internal combustion engine accordingly the desired control and / or regulation influenced can be.
  • the control unit with the Injector and the spark plug connected and generates the signals required to control them.
  • At least from those of the pedal encoder 5 and the Speed sensor 4 generated signals calculates the Control unit in a block 6 a maximum permissible Change in the output from the internal combustion engine 1 Moments during a given period of time. For example, the control unit calculates one maximum allowable torque change for a specific Duration of 1/10 second as an example. The control unit determined from the accelerator pedal position and the speed the internal combustion engine 1 and possibly from their changes during this period, by how much the delivered Torque of the internal combustion engine 1 may change to a maximum.
  • the Time delay depends, for example, on the Engine speed 1.
  • the control unit calculates from that of the Exhaust gas sensor 3 and / or from the air mass meter 2 generated signal an actual change in that of the Torque delivered during an internal combustion engine corresponding predetermined period of time.
  • the control unit determined from the oxygen content of the exhaust gas and / or from the sucked-in air mass and, if applicable, from its Changes during the period of time, by how much the delivered torque of the internal combustion engine 1 has actually changed.
  • the determination of the maximum permissible or the actual torque change is always on the specified period of time. It is thus with the permissible and the actual torque change not by absolute, but relative sizes per time period.
  • the actual change is from that of Internal combustion engine 1 delivered torque, however, greater than the maximum permissible change in the torque delivered, so there is an error case and it becomes an error signal F generated.
  • This error case may be due to the fact that the Control and / or regulation of the internal combustion engine 1 involved sensors are faulty. In particular this means that one or more of the sensors for example due to signs of aging or similar changes in the output signals have taken place to have.
  • the Error signal F for example, a corresponding note generates the driver, or other measures can be taken be taken be taken to fix the error.

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

Abstract

L'invention concerne un moteur à combustion interne (1), en particulier, de véhicule automobile, pourvu d'une unité de commande servant à commander et/ou à réguler la sortie du moteur à combustion interne (1) en fonction de paramètres de fonctionnement dudit moteur et, en particulier, du choix du conducteur. Cette unité de commande permet de déterminer une variation de sortie admissible pendant une durée prédéterminée et une variation de sortie réelle pendant une durée prédéterminée correspondante (6, 7) et de comparer ces variations l'une avec l'autre.

Claims (9)

  1. Procédé de détection d'un défaut dans le fonctionnement d'un moteur à combustion interne (1) notamment d'un véhicule automobile, selon lequel on commande et/ou on régule la puissance fournie par le moteur à combustion interne (1) selon les paramètres de fonctionnement de celui-ci et notamment selon la demande du conducteur,
    caractérisé en ce qu'
    indépendamment de la puissance fournie par la commande et/ou la régulation, on détermine une variation autorisée de la puissance fournie pendant une durée prédéterminée ainsi qu'une variation effective de la puissance fournie pendant une durée prédéterminée (6, 7), et on compare entre elles ces deux valeurs (8), et
    en fonction de la comparaison on génère un signal de défaut (F).
  2. Procédé selon la revendication 1,
    caractérisé en ce que
    la variation autorisée de la puissance fournie pendant la durée prédéterminée se détermine en fonction de la demande du conducteur, notamment en fonction de la variation de la position de la pédalé d'accélérateur (6).
  3. Procédé selon l'une quelconque des revendications 1 ou 2,
    caractérisé en ce qu'
    on détermine la variation autorisée de la puissance fournie pendant la durée prédéterminée en fonction de la vitesse de rotation du moteur à combustion interne (6).
  4. Procédé selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce que
    la variation effective de la puissance fournie pendant la durée prédéterminée se détermine en fonction de la teneur en oxygène des gaz d'échappement expulsés et/ou en fonction de la masse d'air aspirée (7).
  5. Procédé selon l'une quelconque des revendications 1 à 4,
    caractérisé en ce qu'
    on compare la variation autorisée de la puissance fournie en tenant compte d'une temporisation avec la variation effective de la puissance fournie.
  6. Procédé selon l'une quelconque des revendications 1 à 5,
    caractérisé en ce qu'
    on génère un signal de défaut (F) si la variation effective de la puissance fournie pendant la durée prédéterminée est supérieure à la variation autorisée de la puissance fournie pendant la même durée.
  7. Procédé selon l'une quelconque des revendications 1 à 6,
    caractérisé en ce que
    les paramètres agissant sur le moteur à combustion interne (1) sont convertis en couple, notamment en une variation autorisée ou effective du couple fourni par le moteur à combustion interne (1).
  8. Support de mémoire électrique, notamment mémoire morte, pour un appareil de commande d'un moteur à combustion interne (1) notamment d'un véhicule automobile contenant un programme destiné à être exécuté par un calculateur avec un microprocesseur et exécutant le procédé selon l'une quelconque des revendications 1 à 7.
  9. Moteur à combustion interne (1) notamment d'un véhicule comprenant un appareil de commande pour détecter un défaut dans le fonctionnement du moteur (1), et commander et/ou réguler la puissance fournie par le moteur à combustion interne (1) selon les paramètres de fonctionnement de celui-ci et notamment selon la demande du conducteur,
    caractérisé en ce que
    l'appareil de commande, indépendamment de la puissance fournie en fonction de la commande et/ou de la régulation, détermine une variation autorisée de la puissance fournie pendant une durée prédéterminée ainsi qu'une variation effective de la puissance fournie pendant une durée prédéterminée (6, 7) et compare ces deux valeurs (8) et, en fonction de cette comparaison, il génère un signal de défaut (F).
EP98961063A 1997-11-05 1998-11-02 Procede d'exploitation d'un moteur a combustion interne, en particulier, de vehicule automobile Expired - Lifetime EP1029168B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19748745A DE19748745A1 (de) 1997-11-05 1997-11-05 Verfahren zum Betreiben einer Brennkraftmaschine insbesondere eines Kraftfahrzeugs
DE19748745 1997-11-05
PCT/DE1998/003193 WO1999024705A2 (fr) 1997-11-05 1998-11-02 Procede d'exploitation d'un moteur a combustion interne, en particulier, de vehicule automobile

Publications (2)

Publication Number Publication Date
EP1029168A2 EP1029168A2 (fr) 2000-08-23
EP1029168B1 true EP1029168B1 (fr) 2002-05-08

Family

ID=7847613

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98961063A Expired - Lifetime EP1029168B1 (fr) 1997-11-05 1998-11-02 Procede d'exploitation d'un moteur a combustion interne, en particulier, de vehicule automobile

Country Status (5)

Country Link
US (1) US6474299B1 (fr)
EP (1) EP1029168B1 (fr)
JP (1) JP2001522966A (fr)
DE (2) DE19748745A1 (fr)
WO (1) WO1999024705A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6848426B2 (en) * 2003-06-20 2005-02-01 General Electric Company Adaptive fuel control for an internal combustion engine
DE102007023553B3 (de) * 2007-05-21 2008-12-04 Continental Automotive Gmbh Vorrichtung und Verfahren zum Steuern eines Antriebsaggregats
US9475564B2 (en) * 2013-05-07 2016-10-25 General Electric Company System and method for determining engine fuel limits
JP2018009512A (ja) * 2016-07-14 2018-01-18 日立オートモティブシステムズ株式会社 車載制御装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5618049A (en) * 1979-07-20 1981-02-20 Hitachi Ltd Electronic control method for internal combustion engine
US4290400A (en) * 1980-03-17 1981-09-22 General Motors Corporation Closed loop fuel control system for an internal combustion engine
US4493303A (en) * 1983-04-04 1985-01-15 Mack Trucks, Inc. Engine control
DE4033026C2 (de) * 1990-10-18 1997-09-04 Bayerische Motoren Werke Ag Verfahren zur Vermeidung thermisch kritischer Zustände einer Abgasnachbehandlungsvorrichtung für eine Brennkraftmaschine
JPH06144080A (ja) * 1992-11-12 1994-05-24 Jidosha Denki Kogyo Co Ltd 自動定速走行装置の制御方法
FR2709514B1 (fr) * 1993-09-01 1995-11-17 Siemens Automotive Sa Procédé et dispositif de commande du régime d'un moteur à combustion interne en phase de ralenti.
DE19536038B4 (de) * 1995-09-28 2007-08-16 Robert Bosch Gmbh Verfahren und Vorrichtung zur Steuerung der Antriebseinheit eines Kraftfahrzeugs
DE19609242A1 (de) * 1996-03-09 1997-09-11 Bosch Gmbh Robert Verfahren und Vorrichtung zur Steuerung einer Antriebseinheit eines Fahrzeugs
FR2766872B1 (fr) * 1997-08-01 1999-10-15 Renault Procede de correction des a-coups de couple d'un moteur a combustion interne

Also Published As

Publication number Publication date
US6474299B1 (en) 2002-11-05
WO1999024705A2 (fr) 1999-05-20
DE59804085D1 (de) 2002-06-13
EP1029168A2 (fr) 2000-08-23
JP2001522966A (ja) 2001-11-20
DE19748745A1 (de) 1999-05-20
WO1999024705A3 (fr) 1999-08-05

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