EP0975857B1 - Procede de regulation d'un moteur a combustion interne - Google Patents

Procede de regulation d'un moteur a combustion interne Download PDF

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Publication number
EP0975857B1
EP0975857B1 EP98965239A EP98965239A EP0975857B1 EP 0975857 B1 EP0975857 B1 EP 0975857B1 EP 98965239 A EP98965239 A EP 98965239A EP 98965239 A EP98965239 A EP 98965239A EP 0975857 B1 EP0975857 B1 EP 0975857B1
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EP
European Patent Office
Prior art keywords
control unit
engine
actuators
actuator
accordance
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
EP98965239A
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German (de)
English (en)
Other versions
EP0975857A1 (fr
Inventor
Hermann Bäumel
Gunther Breu
Günther ALBERTER
Werner Flierl
Matthias Gramann
Gerhard Hettich
Werner Wiedemann
Wolfgang Thiel
Kurt Maute
Horst Kretschmer
Jürgen Schenk
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.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler AG
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
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Application filed by DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP0975857A1 publication Critical patent/EP0975857A1/fr
Application granted granted Critical
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2400/00—Control systems adapted for specific engine types; Special features of engine control systems not otherwise provided for; Power supply, connectors or cabling for engine control systems
    • F02D2400/18—Packaging of the electronic circuit in a casing
    • 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
    • F02D41/266—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor the computer being backed-up or assisted by another circuit, e.g. analogue

Definitions

  • the invention relates to a method for controlling an internal combustion engine with at least two cylinder heads, with an engine control unit and with actuators for electromagnetic valve control.
  • the actuators designed as a separate module for the electromagnetic Valve control consist essentially of a ⁇ ffnermagnet and a closing magnet by at least one housing part with each other are connected.
  • the opening magnet and the closing magnet are electromagnets, each consisting of a coil and a yoke.
  • an anchor plate made of a ferromagnetic material.
  • the anchor plate is going through Energizing the coil of the opening magnet or the coil of the closing magnet moved in that particular direction.
  • the opening magnet has a Passage for a pestle holding the anchor plate with an actuator spring plate combines. Between the Aktorfederteller and the housing part or the outer side of the opening magnet is arranged an actuator spring.
  • An actuator for electromagnetic valve control forms with a gas exchange valve a functional unit, the gas exchange valve, accordingly a conventional cylinder head with camshafts, by means of a valve spring and a valve spring plate in the valve seat of the cylinder head is pulled.
  • a functional unit consisting of an actuator and a gas exchange valve the internal combustion engine mounted, the Aktorfederteller and the Valve spring plate pressed against each other.
  • the anchor plate In the rest position of the functional Unit is the anchor plate exactly in the middle between the opener magnet and the closing magnet.
  • the gas exchange valve is located while in a middle position between the valve seat of the cylinder head, at the valve is closed, and the position in which the valve is maximum is open.
  • the actuators for electromagnetic valve control are advantageous in a device operated at he the actuators in the AktorJ a Aktornos are arranged, and the actuator carrier on the cylinder head the internal combustion engine is screwed.
  • the actuator carrier is from a covered cooled intermediate level.
  • the cooled intermediate level points Feedthroughs for punched grid connections of a stamped grid.
  • the punched grid is injected in a multifunctional plastic part on which a Actuator control unit is arranged, which is connected to the stamped grid.
  • the cooled intermediate level is comprised by a actuator control unit Cover covered.
  • the actuator control unit is connected to an outside the cover arranged engine control unit connected.
  • the invention has for its object a method for controlling a Internal combustion engine with at least two cylinder heads according to the The preamble of claim 1 indicate that the connection of Actuator control unit with the engine control units describes, and that too is suitable for internal combustion engines with multiple cylinder heads.
  • each cylinder head of the internal combustion engine separate actuator control unit for controlling the actuators for electromagnetic Valve control, which by means of a data bus with the Motor control unit are connected.
  • a data bus is preferably the CAN - Data bus used.
  • each cylinder head of the internal combustion engine in addition to the actuators for electromagnetic valve control on other actuators, which also be controlled by the actuator control unit of the cylinder head.
  • the engine control unit controls in particular such functions of the internal combustion engine, the on the interaction of the components of the internal combustion engine based, such as the fuel injection, the Operating cycle of the valves and the firing order.
  • a cruise control system the load detection and a lambda control in the Engine control unit to be integrated.
  • the engine control unit Diagnostic functions of the internal combustion engine adopted.
  • the actuator control units take over the control of the individual functional sequences the actuators for electromagnetic valve control and the other actors.
  • the controller can be easily turned on and off the actuators exist or in complex arrangements that depend on be carried out by sensor data and / or by maps.
  • the control of the actuators for electromagnetic valve control and the other actuators by the actuator control units takes place according to the specification of the engine control unit.
  • the amperage with which the actuators for electromagnetic valve control to open and close the valves are controlled by the respective Aktorbericht réelle regulated.
  • the times at which the gas exchange valves by the Actuators for electromagnetic valve control for the correct working cycle the valves of the internal combustion engine are opened and closed, is specified by the engine control unit.
  • the engine control unit is integrated in one of the actuator control units.
  • the sensors the internal combustion engine, which is used to control the internal combustion engine necessary sensor data, directly with the engine control unit are connected. If necessary, sensor data becomes via the data bus from the engine control unit to the actuator control units forwarded.
  • the Data bus is designed so that an actuator control unit, the sensor data as well can refer from another actuator control unit.
  • the actuator control units have emergency running properties which the internal combustion engine when disturbances occur at least can be operated for a short time.
  • the actuator control devices not only via the data bus and the engine control unit with the engine sensors but are also connected directly with engine sensors Internal combustion engine connected, preferably with the sensors for determination the crankshaft speed and the crankshaft rotation angle.
  • a valve actuator VA is used for each gas exchange valve.
  • the cylinder heads of the gasoline engine each have an actuator holder AH1, AH2 arranged in a form-fitting manner.
  • the actuator holders AH1, AH2 have three cylinders in each case twelve AktorMchte for receiving the valve actuators VA.
  • the Actuator shafts arrange themselves in the actuator holders AH1, AH2 in groups of four around a spark plug shaft.
  • the valve actuators VA are designed as a preassembled module and consists from an opening magnet with a leadthrough and a closing magnet, which are interconnected by a housing part.
  • the Opener magnet and the closing magnet are electromagnets and exist each of a yoke and a coil.
  • An anchor plate made of a ferromagnetic material is arranged.
  • the anchor plate is connected via a plunger with a Aktorfederteller.
  • the plunger is guided by the implementation of the opening magnet.
  • between the Aktorfederteller and the opening magnet is an actuator spring arranged the provision of the anchor plate after this from the Closing magnet was tightened causes.
  • the electrical connections the two coils of the electromagnets of an actuator to the electromagnetic Valve control are led out laterally from the housing part and summarized to a plug device.
  • a valve actuator VA forms a functional unit with a gas exchange valve.
  • the gas exchange valves are each provided by a valve spring via a valve spring plate attached to the valve stem into the valve seat of the cylinder head drawn.
  • in the rest position of a functional unit of one Gas exchange valve and a valve actuator are the Aktorfederteller and the valve spring plate pressed against each other, with the anchor plate exactly in a central position between the opening magnet and the closing magnet located.
  • the valve spring causes the return of the anchor plate in this central position, after the anchor plate from the opening magnet was tightened to open the gas exchange valve.
  • valve actuators VA in the actuator holder AH1, AH2 each have the angle to the bottom surface of the actuator holder AH1, AH2 on that the plunger of a valve actuator VA with the valve stem each gas exchange valve forms a straight line.
  • the plug devices the valve actuators VA are perpendicular to the surface of the Actuator holder AH1, AH2.
  • both actuator holders AH1, AH2 with the valve actuators VA is respectively a cooled intermediate plate arranged as the aluminum plate AP1, AP2 is executed.
  • the aluminum plates AP1, AP2 are cooling water channels incorporated, which are connected to cooling water channels of the actuator holder AH1, AH2 are.
  • the aluminum plates AP1, AP2 have bushings on, via which the plug-in device of the valve actuators VA with the punched grid connections a punched grid are connected.
  • the punched grid are each is poured in a multifunctional plastic part and set the connection between the valve actuators VA of a cylinder head and the associated actuator control unit AS1, AS2.
  • the aluminum plates AP1, AP2, the multifunctional plastic part and a Actuator control unit AS1, AS2 are each enclosed by a cover.
  • the covers are made of plastic and serve as a design carrier of the car manufacturer.
  • the covers each have one Interface on which the actuator control units AS1, AS2 by means of a CAN data bus DB with an engine control unit MS, with engine sensors S and are connected to the power supply UB of the gasoline engine.
  • CAN Controller Area Network
  • the engine control unit MS preferably regulates or controls the sequence of System functions based on the correct interaction of similar (in the six-cylinder partly six-fold existing) assemblies are based, or on the interaction of different assemblies (injection Ignition) of the gasoline engine are based.
  • system functions For example, concern the firing order, the working cycle of the valves and the Fuel injection.
  • the engine control unit MS With connected to a variety of engine sensors. The most important are the Sensors for detecting the crankshaft speed and the crankshaft rotation angle.
  • the Aktorschenzier AS1, AS2 control or control basic functions of Actuators that are assigned to the respective cylinder head. These basic functions are from the actuator controllers AS1, AS2 according to specifications of the engine control unit MS and affect the valve actuators VA and other actuators, such as the solenoid valves for fuel injection and the spark plugs.
  • valve actuators VA for the electromagnetic valve control of the actuator control units AS1, AS2 controlled according to the specification of the engine control unit MS.
  • the specification of the engine control unit MS consists in the specification of the times, when the opening magnet and the closing magnet of the twenty-four Valve actuators VA the intake valves and the exhaust valves of the six Press cylinder of gasoline engine.
  • the optimal times are from the engine control unit MS in dependence of the crankshaft speed and crankshaft rotation angle, load condition and engine temperature certainly.
  • the Aktor concedezier AS1, AS2 regulate for each valve actuator VA, the current that must be spent so that a gas exchange valve, for example, open against the combustion chamber pressure, or pulled at a speed of 0 m / s as possible in the valve seat of the cylinder head.
  • a device is arranged in each valve actuator VA, with which the exact position of the armature between the opening magnet and the closing magnet can be determined in the valve actuator VA.
  • solenoid valves For the fuel injection of the gasoline engine are solenoid valves, the between the fuel pump and the fuel injectors for suppression the fuel injection are arranged, also from the Aktorberichtaus AS1, AS2 controlled according to specification of the engine control unit MS.
  • the engine control unit MS determines the start and the duration of the fuel injection.
  • the course of injection or any pre- or post-injection are controlled by the actuator controllers AS1, AS2.
  • the Actuator control units AS1, AS2 control the flawless current flow Function of the solenoid valves.
  • the ignition device of the gasoline engine is designed as AC ignition and combined with a device for determining the ion current.
  • the actuator control units AS1, AS2 are instructed by the engine control unit MS, which ignites the spark plug of the six-cylinder gasoline engine next.
  • the ignition of a spark plug is triggered by the respective actuator control unit AS1, AS2.
  • the ion current signal is used by the actuator control unit AS1, AS2 to shift the ignition timing as close as possible to TDC and to detect a possible knock signal.
  • the intensity of the spark is controlled by the actuator control units AS1, AS2 speed-dependent.
  • the necessary information about the crankshaft speed and the crankshaft rotation angle receive the actuator controllers AS1, AS2 again via the data bus DB from the engine control unit MS.
  • Be misfires by the ion current measurement on a cylinder is detected by the affected actuator controller AS1, AS2, the solenoid valves locked and thus the fuel supply for this cylinder to Protection of a catalyst prevented.
  • the engine control unit MS and the Aktor horretti AS1, AS2 are for the Failure of individual components of the gasoline engine with special emergency running properties fitted. It should at least be a short-term operation of the gasoline engine, or components such as the Catalyst of the motor vehicle to be protected from damage.
  • valve actuator VA for electromagnetic valve control
  • the car is driven in this case only by three cylinders.
  • the Engine control unit MS has special ignition maps for this case.
  • the actuator control units AS1, AS2 In the event of failure of data transmission between the engine control unit MS and the actuator control units AS1, AS2 are the actuator control units AS1, AS2 own maps for the operating cycle of the valves, the fuel injection and the ignition available. This requires the data transfer between the Aktor horrerien AS1, AS2 functional his.
  • the actuator control units AS1, AS2 have one of the CAN data bus DB independent connection with crankshaft speed sensor and the crankshaft rotation angle, in normal operation of the gasoline engine are the the engine control unit MS and the Aktor horrettin AS1, AS2 supplied signals from the sensors for detecting the crankshaft speed and the crankshaft rotation angle compared and synchronized.
  • the described distribution of system functions on the engine control unit MS and the basic functions on the actuator controllers AS1, AS2 allows a reliable operation of the gasoline engine, wherein the actuator control devices AS1, AS2 an advantageous proximity to the actuators controlled by them have, and the rapid transmission of instructions of the engine control unit to the actuator controllers AS1, AS2 ensured by the data bus DB is.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

L'invention concerne un procédé de régulation d'un moteur à combustion interne au moyen d'un appareil de régulation de moteur, d'actionneurs pour la commande électromagnétique des soupapes, ainsi qu'au moyen d'autres actionneurs. Chaque culasse présente un appareil de commande d'actionneur séparé, relié par un bus de données à l'appareil de régulation de moteur.

Claims (14)

  1. Procédé de commande d'un moteur à combustion interne comportant au moins deux têtes de cylindre, un appareil de commande de moteur (MS) et des acteurs pour la commande électromagnétique (VA) des soupapes, caractérisé en ce qu'à chaque tête de cylindre du moteur à combustion interne est associé un appareil de commande d'acteur séparé (AS1, AS2) pour commander les acteurs de la commande électromagnétique (VA) des soupapes, et en ce que les appareils de commande d'acteur (AS1, AS2) sont connectés à l'appareil de commande de moteur (MS) via un bus de données (DB).
  2. Procédé selon la revendication 1, caractérisé en ce que chaque tête de cylindre du moteur à combustion interne comprend, outre les acteurs pour la commande électromagnétique (VA) des soupapes, d'autres acteurs qui sont commandés par l'appareil de commande d'acteur (AS1, AS2) de la tête de cylindre.
  3. Procédé selon les revendications 1 et 2, caractérisé en ce que l'appareil de commande de moteur (MS) commande en particulier la coopération des groupes structurels individuels du moteur à combustion interne.
  4. Procédé selon l'une des revendications précédentes, caractérisé en ce que les appareils de commande d'acteur (AS1, AS2) commandent les fonctions des acteurs pour la commande électromagnétique (VA) des soupapes et les fonctions des autres acteurs.
  5. Procédé selon l'une des revendications précédentes, caractérisé en ce que l'appareil de commande de moteur (MS) émet aux appareils de commande d'acteur (AS1, AS2) des définitions pour la commande des fonctions des acteurs pour la commande électromagnétique (VA) des soupapes et des fonctions des autres acteurs.
  6. Procédé selon l'une des revendications précédentes, caractérisé en ce que l'appareil de commande de moteur (MS) est intégré dans l'un des appareils de commande d'acteur (AS1, AS2).
  7. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'un bus CAN est utilisé à titre de bus de données (DB).
  8. Procédé selon l'une des revendications précédentes, caractérisé en ce que des détecteurs du moteur à combustion interne sont connectés à l'appareil de commande de moteur (MS), et en ce que des données de détecteur sont transmises par l'appareil de commande de moteur (MS) via le bus de données (DB) aux appareils de commande d'acteur (AS1, AS2).
  9. Procédé selon la revendication 8, caractérisé en ce qu'un appareil de commande d'acteur (AS1 ; AS2) peut recevoir les données de détecteur depuis l'appareil de commande de moteur (MS) ou depuis un autre appareil de commande d'acteur (AS2 ; AS1).
  10. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'aux appareils de commande d'acteur (AS1, AS2) sont associées des propriétés de fonctionnement en secours par lesquelles le moteur à combustion interne peut continuer à fonctionner au moins brièvement en cas d'apparition de perturbations.
  11. Procédé selon la revendication 10, caractérisé en ce que pour assurer les propriétés de fonctionnement en secours, les détecteurs du moteur à combustion interne sont connectés en supplément directement aux appareils de commande d'acteur (AS1, AS2).
  12. Procédé selon l'une des revendications 8 à 11, caractérisé en ce que des données de détecteur qui sont mises à disposition d'un appareil de commande d'acteur (AS1, AS2) via le bus de données (DB) et via une connexion directe aux détecteurs de moteur (S) sont synchronisées.
  13. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'en cas de défaillance d'au moins un acteur pour la commande électromagnétique des soupapes, l'alimentation en carburant pour le cylindre concerné est supprimée par l'appareil de commande d'acteur associé (AS1, AS2).
  14. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'en cas de défaillance de la connexion entre un appareil de commande d'acteur (AS1, AS2) et l'appareil de commande de moteur (MS), les définitions de l'appareil de commande de moteur (MS) pour commander les fonctions des acteurs pour la commande électromagnétique (VA) des soupapes ainsi que des autres acteurs de la tête de cylindre correspondante sont prélevées par l'appareil de commande d'acteur (AS1, AS2) dans des champs de caractéristiques mémorisés dans l'appareil de commande d'acteur respectif (AS1, AS2) et dépendants au moins de la vitesse de rotation du vilebrequin.
EP98965239A 1997-12-18 1998-12-09 Procede de regulation d'un moteur a combustion interne Expired - Lifetime EP0975857B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19756342A DE19756342C2 (de) 1997-12-18 1997-12-18 Verfahren zur Steuerung einer Brennkraftmaschine
DE19756342 1997-12-18
PCT/EP1998/007987 WO1999032764A1 (fr) 1997-12-18 1998-12-09 Procede de regulation d'un moteur a combustion interne

Publications (2)

Publication Number Publication Date
EP0975857A1 EP0975857A1 (fr) 2000-02-02
EP0975857B1 true EP0975857B1 (fr) 2003-04-09

Family

ID=7852399

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98965239A Expired - Lifetime EP0975857B1 (fr) 1997-12-18 1998-12-09 Procede de regulation d'un moteur a combustion interne

Country Status (5)

Country Link
US (1) US6278932B1 (fr)
EP (1) EP0975857B1 (fr)
JP (1) JP2001512551A (fr)
DE (1) DE19756342C2 (fr)
WO (1) WO1999032764A1 (fr)

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DE19756342C2 (de) 2003-02-13
EP0975857A1 (fr) 2000-02-02
WO1999032764A1 (fr) 1999-07-01
JP2001512551A (ja) 2001-08-21
US6278932B1 (en) 2001-08-21
DE19756342A1 (de) 1999-07-01

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