EP0767870B1 - Device for internal combustion engines - Google Patents

Device for internal combustion engines Download PDF

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Publication number
EP0767870B1
EP0767870B1 EP95935850A EP95935850A EP0767870B1 EP 0767870 B1 EP0767870 B1 EP 0767870B1 EP 95935850 A EP95935850 A EP 95935850A EP 95935850 A EP95935850 A EP 95935850A EP 0767870 B1 EP0767870 B1 EP 0767870B1
Authority
EP
European Patent Office
Prior art keywords
housing
internal combustion
control unit
throttle valve
throttle
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
EP95935850A
Other languages
German (de)
French (fr)
Other versions
EP0767870A1 (en
Inventor
Willy Bentz
Waldemar Ernst
Peter Schiefer
Heiko Buss
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 EP0767870A1 publication Critical patent/EP0767870A1/en
Application granted granted Critical
Publication of EP0767870B1 publication Critical patent/EP0767870B1/en
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
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1065—Mechanical control linkage between an actuator and the flap, e.g. including levers, gears, springs, clutches, limit stops of the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
    • 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
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/02—Light metals
    • F05C2201/021—Aluminium

Definitions

  • the invention relates to a device for a Internal combustion engine according to the preamble of claim 1, or claim 2.
  • a Device known (EP-PS 0 317 813), which is a throttle body owns that in the form of a throttle valve in one Throttle body is rotatably housed.
  • Throttle valve actuator provided the throttle valve rotates via a reduction gear.
  • Such Devices driven by an electric motor are a component an electronic engine power control (EMS) for Internal combustion engines using an electronic control unit the accelerator pedal position detected by a pedal travel sensor Accelerator pedal evaluates to match the accelerator pedal position to control the electric throttle valve motor, so that the throttle valve assumes a certain rotational position.
  • EMS electronic engine power control
  • the electronic engine power control is in able to depend on the rotational position of the throttle valve various operating parameters of the internal combustion engine targeted change. Among other things, this enables one adjustable adjustment of the engine torque, so that a Implementation of a so-called traction control system (ASR) is possible.
  • ASR traction control system
  • the expressed by the accelerator pedal position Corrected driver's request so that when starting off a targeted withdrawal of the rotational position of the throttle valve a cranking of those driven by the internal combustion engine Wheels of a motor vehicle is prevented.
  • Electronic engine power control is part a higher-level electronic engine control system, that in addition to the main functions of mixture formation and electric ignition also the initiation of Fuel vapors by means of a regeneration valve in the Throttle body controls.
  • the regeneration valve is part of a fuel evaporation retention system Fuel tanks of the internal combustion engine, in which the For example, fuel vapors from a fuel tank initially cached in an adsorption filter and then by means of the regeneration valve in the Throttle body are introduced.
  • the engine control system requires a variety of Information about important company sizes of the Internal combustion engine provided by sensors and the electronic control unit can be fed for evaluation.
  • An important sensor is a so-called air mass meter, which is the air mass sucked in by the internal combustion engine Throttle valve connector determined.
  • the engine control system has several individual components, which are essentially that electronic control unit, the throttle body, the Throttle valve actuator, the regeneration valve and the Air mass meter include. These are individual components So far in individual housings, for example on the engine in the Engine interior or in the passenger compartment of the motor vehicle individually housed so that to connect the Individual components, especially with the electronic Control unit, a variety of electrical connection lines and plug connections is required.
  • the device according to the invention for an internal combustion engine with the characterizing features of claim 1 or of claim 2 has the other hand Advantage that a compact component is created, the is inexpensive to manufacture and in particular as prefabricated and pre-tested unit in a simple way and is attachable to the motor vehicle. Advantageously results from the elimination of the otherwise customary individual housings and their electrical connection lines and electrical connectors a further cost saving. In addition, due to the reduced number of electrical Connection lines and electrical connectors Operational safety and reliability of the device elevated.
  • FIG. 1 shows a perspective view of a device according to a first embodiment of the invention
  • Figure 2 a Side view of the device of Figure 1
  • Figure 3 a perspective view of the device according to a second embodiment of the invention
  • Figure 4 a Side view of the device according to FIG. 3.
  • FIGS. 1 to 4 one is labeled 1 Device shown as a functional unit part an electronic engine power control (EMS) parent engine control system for a no closer internal combustion engine shown.
  • the device 1 is for use especially for mix-compacting, spark ignition internal combustion engines provided.
  • the Device 1 essentially comprises a throttle element 2, an electric throttle valve actuator 3, a electronic control unit 4, a regeneration valve 5 and / or an air mass meter 20.
  • the regeneration valve 5 is part of a fuel evaporation retention system
  • Fuel tanks of the internal combustion engine, its structure and Function is like that of the Bosch Technical Instruction, Motronic engine management, 2nd edition, August 1993, on pages 48 and 49. The revelation The above-mentioned document should form part of the present Be registration.
  • the device 1 has a housing 10 which, for example, consists of Plastic or aluminum, for example in Casting technology is manufactured.
  • the device 1, or the housing 10 has a tubular, elongated shape, essentially of a Throttle body 11 is formed.
  • the Throttle body 11 has on one of the internal combustion engine facing end portion a flange 12, the for example, has a cuboid shape.
  • the throttle body 2 is in the throttle body 11 in particular Flange part 12 rotatably housed and for example the shape of a dashed in Figures 1 to 4 shown throttle valve 2.
  • Inside the Throttle body 11 flows a gaseous medium, in particular the air drawn in by the internal combustion engine, for example via a not shown Air filter in the throttle valve assembly 11 in FIGS.
  • the flange part 12 also serves Attachment of the device 1, for example in the area a cylinder head of the internal combustion engine. For this are on Flange part 12, for example, excluding four openings 17, into which screws to screw the device 1 can be introduced.
  • the engine power of the internal combustion engine is known to be by turning the throttle valve 2 in the throttle valve connector 11 controlled so that more or less air at the Throttle valve 2 flows past.
  • the throttled air will by means of at least one fuel injector Fuel admixed to form a fuel-air mixture received, which then in the combustion chambers of the Internal combustion engine burns.
  • the electric throttle valve servomotor 3 is provided, the one in the energized state, for example, over a Reduction gear one with the throttle valve 2 connected throttle valve shaft 14 drives.
  • the control the throttle valve motor 3 takes place by means of electronic control unit 4, for example with a Pedal travel sensor is connected.
  • the pedal travel sensor detects the expressed by the accelerator pedal position of an accelerator pedal Driver request for engine power and transmits this in the form electrical signals to the electronic control unit 4.
  • Das electronic control unit 4 then operates the electric throttle valve actuator 3 so that Throttle valve 2 a specific, the driver's request corresponding and to the operating parameters of Adjusted internal combustion engine occupies.
  • a opposite the throttle valve actuator 3 on Flanged part 12 trained and on the throttle valve shaft 14 attacking reset device 27 ensures that there is a failure of the throttle valve motor 3rd always reset the throttle valve 2, for example in a given idle or Shut-off position comes.
  • EMS electronic engine power control
  • Throttle valve motor 3 takes over the electronic Control unit 4 still extensive functions parent electronic engine control.
  • the electronic engine control controls next to the Main functions of mixture formation and electrical Ignition among other things also in terms of quantity and timing limited introduction of fuel vapors using the Regeneration valve 5.
  • the regeneration valve 5 is part of a A fuel evaporation retention system Fuel tanks of the internal combustion engine, for example an adsorption filter for intermediate storage of the Has fuel tank outgassing fuel vapors this only in certain operating areas of the Internal combustion engine via the regeneration valve 5 in the Initiate throttle body 11.
  • the electronic Control unit 4 of the engine control system requires one Plenty of information on key company sizes Internal combustion engine provided by sensors and supplied to the electronic control unit 4 for evaluation become.
  • the air mass meter 20 is an important sensor represents the in the throttle valve 11 of the Internal combustion engine air mass determined.
  • the electrical Throttle valve actuator 3 an elongated cylindrical Shape.
  • the throttle valve servomotor 3 is in one correspondingly cylindrical motor housing part 15 housed the part of the housing 10 of the device 1 is.
  • the motor housing part 15 extends on the flange part 12 across the throttle valve neck 11 and goes in one piece a box-shaped housing part 16 of the housing 10 over.
  • FIG. 2 a side view of the device 1, is shown, houses the box-shaped housing part 16 several components, at least the electronic control unit 4, the throttle valve servomotor 3 and a plug connector 22.
  • the main component of the electronic control unit 4 is a Substrate 21 on which a large number of electrical components, for example, are applied in hybrid construction.
  • the substrate 21 is box-shaped Housing part 16 in close proximity to the throttle valve connector 11 housed in good thermal contact during operation the control unit 4 heat generated by the in Discharge throttle valve 11 flowing air.
  • the box-shaped Housing part 16 of an attachable closure cover 18th tightly sealable so that no water, contaminants or the like penetrate into the box-shaped housing part 16 can.
  • the cover 18 saves the for example, connector strip 22 held on substrate 21 from, for example, with the cover 18 on something can protrude from the cover 18. The better For the sake of clarity, the closure cover 18 in FIGS. 2 and 4 not shown.
  • the power strip 22 is also possible to use the power strip 22 to attach to the cover 18 or in this integrate and for the electrical connection of the Plug connector 22 with the substrate 21, for example provide flexible, multi-core cable tie.
  • the electrical cable is used to manufacture electrical components its one end on a side facing the substrate 21 of the cover 18 with the power strip 21 electrically connected and with its other end to the electrical Components of the substrate 21 out.
  • this is Regeneration valve 5, for example by means of an Throttle body 11 attached bracket 19 on Throttle body 11 attached.
  • the regeneration valve 5 is via a hose line, not shown for example with the adsorption filter Fuel evaporation retention system of the fuel tank connected to the internal combustion engine.
  • the regeneration valve 5 conducts the hose line 23 visible in FIG Fuel vapors of the fuel tank in a metered manner the throttle body 11 preferably downstream of the Throttle valve 2 on.
  • the regeneration valve 5 is trained electromagnetically actuated and has one Structure, which can be found, for example, in DE-OS 40 23 044 and is therefore not described in more detail below.
  • the regeneration valve 5 is from the electronic control unit 4 controllable, for which this via a not shown electrical connector, for example, via the connector strip 22 electrically connected to the electronic control unit 4 is.
  • the device 1 with the Air mass meter 20 may be equipped.
  • the air mass meter 20 has a removable, for example, DE-OS 38 44 354 Structure and has an elongated shape.
  • the Air mass meter 20 is, for example, approximately in the middle of the elongated extension of the throttle valve body 11 in a Forming 25 on the throttle valve assembly 11, for example inserted and protrudes with his shown in Figure 3 Measuring part 26 approximately in the middle of the throttle body 11 limited flow cross-section to the through the Air mass flowing through the flow cross-section determine.
  • the connecting line is the air mass meter 20 for example via the connector strip 22 with the electronic control unit 4 connected.
  • a common housing 10 By housing several according to the invention Components in or on a common housing 10, in particular the throttle body 2, the electronic Control unit 4 and the regeneration valve 5 and the Air mass meter 20, becomes a compact unit created the functions of several individual components in advantageously in a common unit integrated.
  • the device 1 is complete in pre-assembly producible and testable, so that for final assembly on the Internal combustion engine, for example, only that Screw connection must be attached to the cylinder head.
  • FIGS. 3 and 4 show a second one according to the invention Embodiment shown, in which all the same or equivalent parts with the same reference numerals of first exemplary embodiment according to FIGS. 1 and 2 Marked are.
  • the regeneration valve 5 is not an exemplary embodiment a bracket 19 attached to the throttle valve 11, but in the box-shaped housing part 16 at the bottom 24 thereof housed, for example by means of a clip or a locking connection.
  • the placement of the Regeneration valve 5 is so in the box-shaped housing part 16 provided that a direct through an opening in the bottom 24 Introduction of fuel vapors downstream of the Throttle valve 2 takes place in the throttle valve connector 11, advantageously in the first embodiment Hose connection 23 shown in FIG. 2 can be omitted.
  • Air mass meter 20 also in the box-shaped housing part 16 can be accommodated. Part of the protrudes Air mass measuring body through an opening in the bottom 24 of the box-shaped housing part 16 in the flow cross section of the throttle body 11.
  • Air mass meter 20 shown as a circle protrudes as in first embodiment of Figure 1 with its measuring part 26 for example in the middle of the Throttle body 11 limited flow cross-section.
  • the common accommodation of the regeneration valve 5 and Air mass meter 20 in the box-shaped housing part 16 enables a particularly simple design of the electrical connection paths, in particular to electronic control unit 4.
  • the electrical connection can, for example, by being applied to the substrate 21
  • Conductor tracks are made, for example, by means of soldering Regeneration valve 5 and the air mass meter 20 over the Conductor tracks with the electronic components on the Electrically connect the substrate 21 of the control device 4, whereby otherwise usual plugs with electrical connection lines can be omitted.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

A device (1) has several components, of which at least one rotary throttle member arranged in a throttle valve pipe (11) and capable of being actuated by a throttle pipe regulating engine (3), an electronic controller (4), a regenerating valve (5) and/or an air volume meter (20). All these components are contained in a common housing (10) and form a modular unit that can be preassembled. This device is suitable in particular for mixture-compressing, spark ignited internal combustion engines.

Description

Stand der TechnikState of the art

Die Erfindung geht aus von einer Vorrichtung für eine Brennkraftmaschine nach der Gattung des Anspruchs 1, beziehungsweise des Anspruchs 2. Es ist bereits eine Vorrichtung bekannt (EP-PS 0 317 813), die ein Drosselorgan besitzt, das in Form einer Drosselklappe in einem Drosselklappenstutzen drehbar untergebracht ist. Zur Verstellung der Drosselklappe ist ein elektrischer Drosselklappenstellmotor vorgesehen, der die Drosselklappe über ein Untersetzungsgetriebe dreht. Derartige elektromotorisch angetriebene Vorrichtungen sind Bestandteil einer elektronischen Motorleistungssteuerung (EMS) für Brennkraftmaschinen, bei der ein elektronisches Steuergerät die von einem Pedalwegsensor erfaßte Fahrpedalstellung eines Gaspedals auswertet, um entsprechend der Fahrpedalstellung den elektrischen Drosselklappenstellmotor anzusteuern, so daß die Drosselklappe eine bestimmte Drehstellung einnimmt. Die elektronische Motorleistungssteuerung (EMS) ist dabei in der Lage, die Drehstellung der Drosselklappe abhängig von verschiedenen Betriebsparametern der Brennkraftmaschine gezielt zu verändern. Dies ermöglicht unter anderem eine dosierbare Anpassung des Motordrehmoments, so daß auch eine Durchführung einer sogenannten Antriebsschlupfregelung (ASR) möglich ist. Bei der Antriebsschlupfregelung (ASR) wird der durch die Fahrpedalstellung des Gaspedals ausgedrückte Fahrerwunsch dahingehend korrigiert, daß beim Anfahren durch eine gezielte Rücknahme der Drehstellung der Drosselklappe ein Durchdrehen der von der Brennkraftmaschine angetriebenen Räder eines Kraftfahrzeugs verhindert wird.The invention relates to a device for a Internal combustion engine according to the preamble of claim 1, or claim 2. It is already one Device known (EP-PS 0 317 813), which is a throttle body owns that in the form of a throttle valve in one Throttle body is rotatably housed. For Throttle valve adjustment is electrical Throttle valve actuator provided the throttle valve rotates via a reduction gear. Such Devices driven by an electric motor are a component an electronic engine power control (EMS) for Internal combustion engines using an electronic control unit the accelerator pedal position detected by a pedal travel sensor Accelerator pedal evaluates to match the accelerator pedal position to control the electric throttle valve motor, so that the throttle valve assumes a certain rotational position. The electronic engine power control (EMS) is in able to depend on the rotational position of the throttle valve various operating parameters of the internal combustion engine targeted change. Among other things, this enables one adjustable adjustment of the engine torque, so that a Implementation of a so-called traction control system (ASR) is possible. With the traction control system (ASR) the expressed by the accelerator pedal position Corrected driver's request so that when starting off a targeted withdrawal of the rotational position of the throttle valve a cranking of those driven by the internal combustion engine Wheels of a motor vehicle is prevented.

Die elektronische Motorleistungssteuerung (EMS) ist Teil eines übergeordneten elektronischen Motorsteuerungssystems, das neben den Hauptfunktionen der Gemischbildung und der elektrischen Zündung auch die Einleitung von Brennstoffdämpfen mittels eines Regenerierventils in den Drosselklappenstutzen steuert. Das Regenerierventil ist Teil eines Brennstoffverdunstungs-Rückhaltesystems eines Brennstofftanks der Brennkraftmaschine, bei dem die Brennstoffdämpfe eines Brennstofftanks beispielsweise zunächst in einem Adsorptionsfilter zwischengespeichert und anschließend mittels des Regenerierventils in den Drosselklappenstutzen eingeleitet werden.Electronic engine power control (EMS) is part a higher-level electronic engine control system, that in addition to the main functions of mixture formation and electric ignition also the initiation of Fuel vapors by means of a regeneration valve in the Throttle body controls. The regeneration valve is part of a fuel evaporation retention system Fuel tanks of the internal combustion engine, in which the For example, fuel vapors from a fuel tank initially cached in an adsorption filter and then by means of the regeneration valve in the Throttle body are introduced.

Das Motorsteuerungssystem benötigt eine Vielzahl von Informationen über wichtige Betriebsgrößen der Brennkraftmaschine, die von Sensoren bereitgestellt und dem elektronischen Steuergerät zur Auswertung zugeführt werden. Ein wichtiger Sensor ist ein sogenannter Luftmassenmesser, der die von der Brennkraftmaschine angesaugte Luftmasse im Drosselklappenstutzen bestimmt. Das Motorsteuerungssystem hat mehrere Einzelkomponenten, die im wesentlichen das elektronische Steuergerät, das Drosselorgan, den Drosselklappenstellmotor, das Regenerierventil und den Luftmassenmesser umfassen. Diese Einzelkomponenten sind bisher in Einzelgehäusen, zum Beispiel am Motor im Motorinnenraum oder im Fahrgastraum des Kraftfahrzeuges einzeln untergebracht, so daß zur Verbindung der Einzelkomponenten, insbesondere mit dem elektronischen Steuergerät, eine Vielzahl elektrischer Verbindungsleitungen und Steckverbindungen erforderlich ist. The engine control system requires a variety of Information about important company sizes of the Internal combustion engine provided by sensors and the electronic control unit can be fed for evaluation. An important sensor is a so-called air mass meter, which is the air mass sucked in by the internal combustion engine Throttle valve connector determined. The engine control system has several individual components, which are essentially that electronic control unit, the throttle body, the Throttle valve actuator, the regeneration valve and the Air mass meter include. These are individual components So far in individual housings, for example on the engine in the Engine interior or in the passenger compartment of the motor vehicle individually housed so that to connect the Individual components, especially with the electronic Control unit, a variety of electrical connection lines and plug connections is required.

Vorteile der ErfindungAdvantages of the invention

Die erfindungsgemäße Vorrichtung für eine Brennkraftmaschine mit den kennzeichnenden Merkmalen des Anspruchs 1 beziehungsweise des Anspruchs 2 hat demgegenüber den Vorteil, daß ein kompaktes Bauteil geschaffen wird, das kostengünstig herstellbar ist und das insbesondere als vorgefertigte und vorgeprüfte Baueinheit in einfacher Art und Weise am Kraftfahrzeug anbaubar ist. Vorteilhafterweise ergibt sich durch den Wegfall sonst üblicher Einzelgehäuse sowie deren elektrischen Verbindungsleitungen und elektrischen Steckverbindungen eine weitere Kostenersparnis. Außerdem ist durch die reduzierte Anzahl elektrischer Verbindungsleitungen und elektrischer Steckverbindungen die Betriebssicherheit und Zuverlässigkeit der Vorrichtung erhöht.The device according to the invention for an internal combustion engine with the characterizing features of claim 1 or of claim 2 has the other hand Advantage that a compact component is created, the is inexpensive to manufacture and in particular as prefabricated and pre-tested unit in a simple way and is attachable to the motor vehicle. Advantageously results from the elimination of the otherwise customary individual housings and their electrical connection lines and electrical connectors a further cost saving. In addition, due to the reduced number of electrical Connection lines and electrical connectors Operational safety and reliability of the device elevated.

Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen der im Anspruch 1, beziehungsweise im Anspruch 2 angegebenen Vorrichtung möglich.By the measures listed in the subclaims advantageous developments and improvements in Claim 1, or specified in claim 2 Device possible.

Zeichnungdrawing

Ausführungsbeispiele der Erfindung sind in der Zeichnung vereinfacht dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen Figur 1 eine perspektivische Darstellung einer Vorrichtung gemäß einem ersten erfindungsgemäßen Ausführungsbeispiel, Figur 2 eine Seitenansicht der Vorrichtung nach Figur 1, Figur 3 eine perspektivische Darstellung der Vorrichtung gemäß einem zweiten erfindungsgemäßen Ausführungsbeispiel, Figur 4 eine Seitenansicht der Vorrichtung nach Figur 3.Embodiments of the invention are in the drawing shown in simplified form and in the following Description explained in more detail. 1 shows a perspective view of a device according to a first embodiment of the invention, Figure 2 a Side view of the device of Figure 1, Figure 3 a perspective view of the device according to a second embodiment of the invention, Figure 4 a Side view of the device according to FIG. 3.

Beschreibung der AusführungsbeispieleDescription of the embodiments

In den Figuren 1 bis 4 ist eine mit 1 gekennzeichnete Vorrichtung dargestellt, die als funktionale Einheit Teil einer elektronischen Motorleistungsteuerung (EMS) eines übergeordneten Motorsteuerungssystems für eine nicht näher dargestellte Brennkraftmaschine ist. Die Vorrichtung 1 ist zum Einsatz insbesondere für gemischverdichtende, fremdgezündete Brennkraftmaschinen vorgesehen. Die Vorrichtung 1 umfaßt im wesentlichen ein Drosselorgan 2, einen elektrischen Drosselklappenstellmotor 3, ein elektronisches Steuergerät 4, ein Regenerierventil 5 und/oder einen Luftmassenmesser 20. Das Regenerierventil 5 ist Teil eines Brennstoffverdunstungs-Rückhaltesystems eines Brennstofftanks der Brennkraftmaschine, dessen Aufbau und Funktion so ist, wie es zum Beispiel der Bosch Technischen Unterrichtung, Motormanagement Motronic, 2. Ausgabe, August 1993, auf Seite 48 und 49 entnehmbar ist. Die Offenbarung der oben genannten Schrift soll Bestandteil der vorliegenden Anmeldung sein.In FIGS. 1 to 4, one is labeled 1 Device shown as a functional unit part an electronic engine power control (EMS) parent engine control system for a no closer internal combustion engine shown. The device 1 is for use especially for mix-compacting, spark ignition internal combustion engines provided. The Device 1 essentially comprises a throttle element 2, an electric throttle valve actuator 3, a electronic control unit 4, a regeneration valve 5 and / or an air mass meter 20. The regeneration valve 5 is part of a fuel evaporation retention system Fuel tanks of the internal combustion engine, its structure and Function is like that of the Bosch Technical Instruction, Motronic engine management, 2nd edition, August 1993, on pages 48 and 49. The revelation The above-mentioned document should form part of the present Be registration.

Die Vorrichtung 1 hat ein Gehäuse 10, das zum Beispiel aus Kunststoff oder aus Aluminium, beispielsweise in Gießtechnik, hergestellt ist. Die Vorrichtung 1, beziehungsweise das Gehäuse 10 hat eine rohrförmige, längliche Gestalt, die im wesentlichen von einem Drosselklappenstutzen 11 gebildet wird. Der Drosselklappenstutzen 11 hat an einem der Brennkraftmaschine zugewandten Endbereich einen Flanschteil 12, der beispielsweise eine quaderförmige Form hat. Das Drosselorgan 2 ist im Drosselklappenstutzen 11 insbesondere im Flanschteil 12 drehbar untergebracht und hat zum Beispiel die Form einer in den Figuren 1 bis 4 gestrichelt dargestellten Drosselklappe 2. Im Innern des Drosselklappenstutzens 11 strömt ein gasförmiges Medium, insbesondere die von der Brennkraftmaschine angesaugte Luft, die beispielsweise über einen nicht näher dargestellten Luftfilter in den Drosselklappenstutzen 11 in den Figuren 1 bis 4 von oben nach unten einströmt. Die Strömungsrichtung ist durch entsprechende Pfeile 8 in den Figuren 1 bis 4 gekennzeichnet. Der Flanschteil 12 dient weiterhin zur Befestigung der Vorrichtung 1, beispielsweise im Bereich eines Zylinderkopfes der Brennkraftmaschine. Hierzu sind am Flanschteil 12 beispielsweise vier Öffnungen 17 ausgenommen, in welche Schrauben zum Anschrauben der Vorrichtung 1 eingebracht werden können.The device 1 has a housing 10 which, for example, consists of Plastic or aluminum, for example in Casting technology is manufactured. The device 1, or the housing 10 has a tubular, elongated shape, essentially of a Throttle body 11 is formed. Of the Throttle body 11 has on one of the internal combustion engine facing end portion a flange 12, the for example, has a cuboid shape. The throttle body 2 is in the throttle body 11 in particular Flange part 12 rotatably housed and for example the shape of a dashed in Figures 1 to 4 shown throttle valve 2. Inside the Throttle body 11 flows a gaseous medium, in particular the air drawn in by the internal combustion engine, for example via a not shown Air filter in the throttle valve assembly 11 in FIGS. 1 up to 4 flows from top to bottom. The flow direction is by corresponding arrows 8 in Figures 1 to 4 featured. The flange part 12 also serves Attachment of the device 1, for example in the area a cylinder head of the internal combustion engine. For this are on Flange part 12, for example, excluding four openings 17, into which screws to screw the device 1 can be introduced.

Die Motorleistung der Brennkraftmaschine wird bekanntermaßen durch Drehen der Drosselklappe 2 im Drosselklappenstutzen 11 gesteuert, so daß mehr oder weniger Luft an der Drosselklappe 2 vorbeiströmt. Der gedrosselten Luft wird mittels wenigstens einem Brennstoffeinspritzventil Brennstoff zugemischt, um ein Brennstoff-Luft-Gemisch zu erhalten, das anschließend in Brennräumen der Brennkraftmaschine verbrennt. Zum Drehen der Drosselklappe 2 ist der elektrische Drosselklappenstellmotor 3 vorgesehen, der im bestromten Zustand zum Beispiel über ein Untersetzungsgetriebe eine mit der Drosselklappe 2 verbundene Drosselklappenwelle 14 antreibt. Die Ansteuerung des Drosselklappenstellmotors 3 erfolgt dabei mittels des elektronischen Steuergeräts 4, das zum Beispiel mit einem Pedalwegsensor verbunden ist. Der Pedalwegsensor erfaßt den durch die Fahrpedalstellung eines Gaspedals ausgedrückten Fahrerwunsch an Motorleistung und übermittelt diesen in Form elektrischer Signale an das elektronische Steuergerät 4. Das elektronische Steuergerät 4 betätigt daraufhin den elektrischen Drosselklappenstellmotor 3, damit die Drosselklappe 2 eine bestimmte, dem Fahrerwunsch entsprechende und an die Betriebskenngrößen der Brennkraftmaschine angepaßte Drehstellung einnimmt. Eine gegenüberliegend dem Drosselklappenstellmotor 3 am Flanschteil 12 ausgebildete und an der Drosselklappenwelle 14 angreifende Rückstellvorrichtung 27 stellt dabei sicher, daß es bei einem Ausfall des Drosselklappenstellmotors 3 stets zu einer Rückstellung der Drosselklappe 2, beispielsweise in eine vorgegebene Leerlauf- oder Absperrstellung kommt. Neben der beschriebenen elektronischen Motorleistungssteuerung (EMS) mittels des Drosselklappenstellmotors 3 übernimmt das elektronische Steuergerät 4 noch weitreichende Funktionen einer übergeordneten elektronischen Motorsteuerung. Die elektronische Motorsteuerung steuert neben den Hauptfunktionen der Gemischbildung und der elektrischen Zündung unter anderem auch die mengenmäßig und zeitlich begrenzte Einleitung von Brennstoffdämpfen mittels des Regenerierventils 5. Das Regenerierventil 5 ist Teil eines Brennstoffverdunstungs-Ruckhaltesystems eines Brennstofftanks der Brennkraftmaschine, das beispielsweise einen Adsorptionsfilter zur Zwischenspeicherung der im Brennstofftank ausgasenden Brennstoffdämpfe besitzt, um diese nur bei bestimmten Betriebsbereichen der Brennkraftmaschine über das Regenerierventil 5 in den Drosselklappenstutzen 11 einzuleiten. Das elektronische Steuergerät 4 des Motorsteuerungssystems benötigt eine Vielzahl von Informationen über wichtige Betriebsgrößen der Brennkraftmaschine, welche von Sensoren bereitgestellt und dem elektronischen Steuergerät 4 zur Auswertung zugeführt werden. Ein wichtiger Sensor stellt der Luftmassenmesser 20 dar, der im Drosselklappenstutzen 11 die von der Brennkraftmaschine angesaugte Luftmasse bestimmt. The engine power of the internal combustion engine is known to be by turning the throttle valve 2 in the throttle valve connector 11 controlled so that more or less air at the Throttle valve 2 flows past. The throttled air will by means of at least one fuel injector Fuel admixed to form a fuel-air mixture received, which then in the combustion chambers of the Internal combustion engine burns. To turn the throttle valve 2 the electric throttle valve servomotor 3 is provided, the one in the energized state, for example, over a Reduction gear one with the throttle valve 2 connected throttle valve shaft 14 drives. The control the throttle valve motor 3 takes place by means of electronic control unit 4, for example with a Pedal travel sensor is connected. The pedal travel sensor detects the expressed by the accelerator pedal position of an accelerator pedal Driver request for engine power and transmits this in the form electrical signals to the electronic control unit 4. Das electronic control unit 4 then operates the electric throttle valve actuator 3 so that Throttle valve 2 a specific, the driver's request corresponding and to the operating parameters of Adjusted internal combustion engine occupies. A opposite the throttle valve actuator 3 on Flanged part 12 trained and on the throttle valve shaft 14 attacking reset device 27 ensures that there is a failure of the throttle valve motor 3rd always reset the throttle valve 2, for example in a given idle or Shut-off position comes. In addition to the described electronic engine power control (EMS) using the Throttle valve motor 3 takes over the electronic Control unit 4 still extensive functions parent electronic engine control. The electronic engine control controls next to the Main functions of mixture formation and electrical Ignition among other things also in terms of quantity and timing limited introduction of fuel vapors using the Regeneration valve 5. The regeneration valve 5 is part of a A fuel evaporation retention system Fuel tanks of the internal combustion engine, for example an adsorption filter for intermediate storage of the Has fuel tank outgassing fuel vapors this only in certain operating areas of the Internal combustion engine via the regeneration valve 5 in the Initiate throttle body 11. The electronic Control unit 4 of the engine control system requires one Plenty of information on key company sizes Internal combustion engine provided by sensors and supplied to the electronic control unit 4 for evaluation become. The air mass meter 20 is an important sensor represents the in the throttle valve 11 of the Internal combustion engine air mass determined.

Wie in der Figur 1 dargestellt ist, besitzt der elektrische Drosselklappenstellmotor 3 eine längliche zylindrische Gestalt. Der Drosselklappenstellmotor 3 ist in einem entsprechend zylindrisch ausgebildeten Motorgehäuseteil 15 untergebracht, das Teil des Gehäuses 10 der Vorrichtung 1 ist. Der Motorgehäuseteil 15 erstreckt sich am Flanschteil 12 quer zum Drosselklappenstutzen 11 und geht einstückig in ein kastenförmiges Gehäuseteil 16 des Gehäuses 10 über. Wie in der Figur 2, einer Seitenansicht der Vorrichtung 1, dargestellt ist, beherbergt der kastenförmige Gehäuseteil 16 mehrere Komponenten, zumindest das elektronische Steuergerät 4, den Drosselklappenstellmotor 3 und eine Steckerleiste 22. Hauptbestandteil des elektronischen Steuergerätes 4 ist ein Substrat 21, auf dem eine Vielzahl elektrischer Bauteile, beispielsweise in Hybridbauweise, aufgebracht sind. Zur Kontaktierung und zur Stromversorgung des Steuergeräts 4 können ein oder mehrere Stecker auf die Steckerleiste 22 aufgesteckt werden. Das Substrat 21 ist im kastenförmigen Gehäuseteil 16 in räumlicher Nähe des Drosselklappenstutzens 11 untergebracht, um in gutem Wärmekontakt die beim Betrieb des Steuergerätes 4 entstehende Wärme von der im Drosselklappenstutzen 11 strömenden Luft abzuführen. Wie in der Figur 1 dargestellt ist, ist der kastenförmige Gehäuseteil 16 von einem aufsetzbaren Verschlußdeckel 18 dicht verschließbar, damit kein Wasser, Schmutzstoffe oder dergleichen in den kastenförmigen Gehäuseteil 16 eindringen können. Der Verschlußdeckel 18 spart dabei die beispielsweise am Substrat 21 gehaltene Steckerleiste 22 aus, die bei aufgesetztem Verschlußdeckel 18 beispielsweise etwas vom Verschlußdeckel 18 abstehen kann. Der besseren Übersicht wegen, ist der Verschlußdeckel 18 in den Figuren 2 und 4 nicht gezeigt. Es ist auch möglich, die Steckerleiste 22 am Verschlußdeckel 18 anzubringen oder in diesen einzubinden und zur elektrischen Verbindung der Steckerleiste 22 mit dem Substrat 21 beispielsweise ein flexibles, mehradriges Kabelband vorzusehen. Um dabei eine elektrische Verbindung mit auf dem Substrat 21 vorgesehenen, elektrischen Bauteilen herzustellen, wird das Kabelband mit seinem einen Ende an einer dem Substrat 21 zugewandten Seite des Verschlußdeckels 18 mit der Steckerleiste 21 elektrisch verbunden und mit seinem anderen Ende zu den elektrischen Bauteilen des Substrats 21 geführt.As shown in Figure 1, the electrical Throttle valve actuator 3 an elongated cylindrical Shape. The throttle valve servomotor 3 is in one correspondingly cylindrical motor housing part 15 housed the part of the housing 10 of the device 1 is. The motor housing part 15 extends on the flange part 12 across the throttle valve neck 11 and goes in one piece a box-shaped housing part 16 of the housing 10 over. How in FIG. 2, a side view of the device 1, is shown, houses the box-shaped housing part 16 several components, at least the electronic control unit 4, the throttle valve servomotor 3 and a plug connector 22. The main component of the electronic control unit 4 is a Substrate 21 on which a large number of electrical components, for example, are applied in hybrid construction. For Contacting and power supply to the control unit 4 can one or more plugs on the connector strip 22nd be plugged on. The substrate 21 is box-shaped Housing part 16 in close proximity to the throttle valve connector 11 housed in good thermal contact during operation the control unit 4 heat generated by the in Discharge throttle valve 11 flowing air. As in 1 is the box-shaped Housing part 16 of an attachable closure cover 18th tightly sealable so that no water, contaminants or the like penetrate into the box-shaped housing part 16 can. The cover 18 saves the for example, connector strip 22 held on substrate 21 from, for example, with the cover 18 on something can protrude from the cover 18. The better For the sake of clarity, the closure cover 18 in FIGS. 2 and 4 not shown. It is also possible to use the power strip 22 to attach to the cover 18 or in this integrate and for the electrical connection of the Plug connector 22 with the substrate 21, for example provide flexible, multi-core cable tie. To do one electrical connection with provided on the substrate 21, The electrical cable is used to manufacture electrical components its one end on a side facing the substrate 21 of the cover 18 with the power strip 21 electrically connected and with its other end to the electrical Components of the substrate 21 out.

Wie in den Figuren 1 und 2 dargestellt ist, ist das Regenerierventil 5 beispielsweise mittels eines am Drosselklappenstutzen 11 angebrachten Haltebügels 19 am Drosselklappenstutzen 11 befestigt. Das Regenerierventil 5 ist über eine nicht näher dargestellten Schlauchleitung beispielsweise mit dem Adsorptionsfilter des Brennstoffverdunstungs-Rückhaltesystems des Brennstofftanks der Brennkraftmaschine verbunden. Das Regenerierventil 5 leitet über eine in Figur 2 sichtbare Schlauchleitung 23 die Brennstoffdämpfe des Brennstofftanks in dosierter Weise in den Drosselklappenstutzen 11 vorzugsweise stromabwärts der Drosselklappe 2 ein. Das Regenerierventil 5 ist elektromagnetisch betätigbar ausgebildet und hat einen Aufbau, der beispielsweise der DE-OS 40 23 044 entnehmbar ist und der daher im folgenden nicht näher beschrieben wird. Das Regenerierventil 5 ist vom elektronischen Steuergerät 4 ansteuerbar, wozu dieses über einen nicht näher dargestellten elektrischen Stecker beispielsweise über die Steckerleiste 22 mit dem elektronischen Steuergerät 4 elektrisch verbunden ist.As shown in Figures 1 and 2, this is Regeneration valve 5, for example by means of an Throttle body 11 attached bracket 19 on Throttle body 11 attached. The regeneration valve 5 is via a hose line, not shown for example with the adsorption filter Fuel evaporation retention system of the fuel tank connected to the internal combustion engine. The regeneration valve 5 conducts the hose line 23 visible in FIG Fuel vapors of the fuel tank in a metered manner the throttle body 11 preferably downstream of the Throttle valve 2 on. The regeneration valve 5 is trained electromagnetically actuated and has one Structure, which can be found, for example, in DE-OS 40 23 044 and is therefore not described in more detail below. The regeneration valve 5 is from the electronic control unit 4 controllable, for which this via a not shown electrical connector, for example, via the connector strip 22 electrically connected to the electronic control unit 4 is.

Zusätzlich oder gegebenenfalls anstelle des Regenerierventils 5 kann die Vorrichtung 1 mit dem Luftmassenmesser 20 ausgestattet sein. Der Luftmassenmesser 20 hat einen zum Beispiel der DE-OS 38 44 354 entnehmbaren Aufbau und besitzt eine längliche Gestalt. Der Luftmassenmesser 20 ist beispielsweise etwa in der Mitte der länglichen Erstreckung des Drosselklappenstutzens 11 in eine Anformung 25 am Drosselklappenstutzen 11 zum Beispiel steckbar eingeführt und ragt mit seinem in Figur 3 gezeigten Meßteil 26 etwa in die Mitte des vom Drosselklappenstutzen 11 begrenzten Strömungsquerschnitts, um die durch den Strömungsquerschnitt hindurchströmende Luftmasse zu bestimmen. Über eine nicht dargestellte elektrische Verbindungsleitung ist der Luftmassenmesser 20 beispielsweise über die Steckerleiste 22 mit dem elektronischen Steuergerät 4 verbunden.In addition or if necessary instead of Regeneration valve 5, the device 1 with the Air mass meter 20 may be equipped. The air mass meter 20 has a removable, for example, DE-OS 38 44 354 Structure and has an elongated shape. Of the Air mass meter 20 is, for example, approximately in the middle of the elongated extension of the throttle valve body 11 in a Forming 25 on the throttle valve assembly 11, for example inserted and protrudes with his shown in Figure 3 Measuring part 26 approximately in the middle of the throttle body 11 limited flow cross-section to the through the Air mass flowing through the flow cross-section determine. About an electrical, not shown The connecting line is the air mass meter 20 for example via the connector strip 22 with the electronic control unit 4 connected.

Durch die erfindungsgemäße Unterbringung mehrerer Komponenten in beziehungsweise an einem gemeinsamen Gehäuse 10, insbesondere des Drosselorgans 2, des elektronischen Steuergeräts 4 und des Regenerierventils 5 sowie des Luftmassenmessers 20, wird eine kompakte Baueinheit geschaffen, die Funktionen mehrerer einzelner Bauteile in vorteilhafter Weise in einem gemeinsamen Aggregat integriert. Die Vorrichtung 1 ist in Vormontage komplett herstellbar und prüfbar, so daß zur Endmontage an der Brennkraftmaschine beispielsweise nur noch die Schraubverbindung am Zylinderkopf angebracht werden muß. Durch die Zusammenfassung mehrerer Komponenten können eine Vielzahl sonst üblicher Steckverbindungen und elektrischer Verbindungsleitungen, insbesondere zum elektronischen Steuergerät 4, entfallen, wodurch sich eine hohe Betriebssicherheit und Zuverlässigkeit der Vorrichtung 1 ergibt.By housing several according to the invention Components in or on a common housing 10, in particular the throttle body 2, the electronic Control unit 4 and the regeneration valve 5 and the Air mass meter 20, becomes a compact unit created the functions of several individual components in advantageously in a common unit integrated. The device 1 is complete in pre-assembly producible and testable, so that for final assembly on the Internal combustion engine, for example, only that Screw connection must be attached to the cylinder head. By combining several components, one Many other usual plug connections and electrical Connection lines, in particular for electronic Control device 4, omitted, resulting in a high Operational safety and reliability of the device 1 results.

In den Figuren 3 und 4 ist ein zweites erfindungsgemäßes Ausführungsbeispiel gezeigt, bei dem alle gleichen oder gleichwirkenden Teile mit den gleichen Bezugszeichen des ersten Ausführungsbeispiels gemäß den Figuren 1 und 2 gekennzeichnet sind. Gegenüber dem ersten Ausführungsbeispiel ist das Regenerierventil 5 nicht mittels eines Haltebügels 19 am Drosselklappenstutzen 11 befestigt, sondern im kastenförmigen Gehäuseteil 16 an dessen Boden 24 untergebracht, beispielsweise mittels einer Klipps- oder einer Rastverbindung. Die Unterbringung des Regenerierventils 5 ist im kastenförmigen Gehäuseteil 16 so vorgesehen, daß über eine Öffnung im Boden 24 eine direkte Einleitung der Brennstoffdämpfe nach stromabwärts der Drosselklappe 2 in den Drosselklappenstutzen 11 erfolgt, wobei vorteilhafterweise die im ersten Ausfühnmgsbeispiel in Figur 2 gezeigte Schlauchverbindung 23 entfallen kann.FIGS. 3 and 4 show a second one according to the invention Embodiment shown, in which all the same or equivalent parts with the same reference numerals of first exemplary embodiment according to FIGS. 1 and 2 Marked are. Compared to the first The regeneration valve 5 is not an exemplary embodiment a bracket 19 attached to the throttle valve 11, but in the box-shaped housing part 16 at the bottom 24 thereof housed, for example by means of a clip or a locking connection. The placement of the Regeneration valve 5 is so in the box-shaped housing part 16 provided that a direct through an opening in the bottom 24 Introduction of fuel vapors downstream of the Throttle valve 2 takes place in the throttle valve connector 11, advantageously in the first embodiment Hose connection 23 shown in FIG. 2 can be omitted.

Wie in der Figur 4 dargestellt ist, kann der Luftmassenmesser 20 ebenfalls im kastenförmigen Gehäuseteil 16 untergebracht werden. Dabei ragt ein Teil des Luftmassenmeßkörpers durch eine Öffnung im Boden 24 des kastenförmigen Gehäuseteils 16 in den Strömungsquerschnitt des Drosselklappenstutzens 11. Der in Figur 4 vereinfachend als Kreis dargestellte Luftmassenmesser 20 ragt dabei wie im ersten Ausführungsbeispiel nach Figur 1 mit seinem Meßteil 26 beispielsweise etwa in die Mitte des vom Drosselklappenstutzen 11 begrenzten Strömungsquerschnitts. Die gemeinsame Unterbringung des Regenerierventils 5 und des Luftmassenmessers 20 im kastenförmigen Gehäuseteil 16 ermöglicht eine besonders einfache Gestaltung der elektrischen Verbindungswege, insbesondere zum elektronischen Steuergerät 4. Die elektrische Verbindung kann beispielsweise durch auf dem Substrat 21 aufgebrachte Leiterbahnen erfolgen, die beispielsweise mittels Lötung das Regenerierventil 5 und den Luftmassenmesser 20 über die Leiterbahnen mit den elektronischen Bauteilen auf dem Substrat 21 des Steuergeräts 4 elektrisch verbinden, wodurch sonst übliche Stecker mit elektrischen Verbindungsleitungen entfallen können.As shown in Figure 4, the Air mass meter 20 also in the box-shaped housing part 16 can be accommodated. Part of the protrudes Air mass measuring body through an opening in the bottom 24 of the box-shaped housing part 16 in the flow cross section of the throttle body 11. The simplifying in Figure 4 Air mass meter 20 shown as a circle protrudes as in first embodiment of Figure 1 with its measuring part 26 for example in the middle of the Throttle body 11 limited flow cross-section. The common accommodation of the regeneration valve 5 and Air mass meter 20 in the box-shaped housing part 16 enables a particularly simple design of the electrical connection paths, in particular to electronic control unit 4. The electrical connection can, for example, by being applied to the substrate 21 Conductor tracks are made, for example, by means of soldering Regeneration valve 5 and the air mass meter 20 over the Conductor tracks with the electronic components on the Electrically connect the substrate 21 of the control device 4, whereby otherwise usual plugs with electrical connection lines can be omitted.

Claims (9)

  1. Device for an internal combustion engine, which comprises at least one throttling element, which is accommodated in a throttle body and is actuable by an electric throttle-butterfly positioning motor, and an electronic control unit in a common housing as a preassemblable unit, the throttle body (11), the engine housing part (15) and the housing part (16) of the control unit (4) integrally forming the common housing (10), characterized in that the device (1) furthermore has a regenerating valve (5).
  2. Device for an internal combustion engine, which comprises at least one throttling element, which is accommodated in a throttle body and is actuable by an electric throttle-butterfly positioning motor, and an electronic control unit in a common housing as a preassemblable unit, the throttle body (11), the engine housing part (15) and the housing part (16) of the control unit (4) integrally forming the common housing (10), characterized in that the device (1) furthermore has an air mass meter (20).
  3. Device according to Claim 1, characterized in that the device (1) comprises an air mass meter (20).
  4. Device according to Claim 2 or 3, characterized in that the air mass meter (20) is mounted in plug-in fashion on the throttle body (11) of the housing (10).
  5. Device according to Claim 2 or 3, characterized in that the air mass meter (20) is accommodated in that housing part (16) which is box-shaped of the housing (10).
  6. Device according to Claim 1 or 2, characterized in that the electronic control unit (4) is accommodated in that housing part (16) which is box-shaped of the housing (10).
  7. Device according to Claim 1 or 3, characterized in that the regenerating valve (5) is accommodated in that housing part (16) which is box-shaped of the housing (10).
  8. Device according to Claim 1 or 3, characterized in that the regenerating valve (5) is mounted on the throttle body (11) of the housing (10) by means of a retaining clip (19).
  9. Device according to Claim 7, characterized in that the regenerating valve (5) is accommodated in such a way in the box-shaped part (16) of the housing (10) that it is connected to a cross-section of flow downstream of the throttling element (2).
EP95935850A 1994-12-07 1995-11-07 Device for internal combustion engines Expired - Lifetime EP0767870B1 (en)

Applications Claiming Priority (3)

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DE4443502 1994-12-07
DE4443502A DE4443502A1 (en) 1994-12-07 1994-12-07 Device for an internal combustion engine
PCT/DE1995/001534 WO1996018028A1 (en) 1994-12-07 1995-11-07 Device for internal combustion engines

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EP0767870A1 EP0767870A1 (en) 1997-04-16
EP0767870B1 true EP0767870B1 (en) 1999-08-04

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JP (1) JPH09508954A (en)
KR (1) KR970700817A (en)
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DE (2) DE4443502A1 (en)
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RU2140555C1 (en) 1999-10-27
WO1996018028A1 (en) 1996-06-13
DE4443502A1 (en) 1996-06-13
CN1137820A (en) 1996-12-11
TW285699B (en) 1996-09-11
DE59506537D1 (en) 1999-09-09
US5718202A (en) 1998-02-17
CN1067140C (en) 2001-06-13
KR970700817A (en) 1997-02-12
EP0767870A1 (en) 1997-04-16
JPH09508954A (en) 1997-09-09

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