WO1983000534A1 - Connecting device between a regulating member for regulating the power of a combustion engine and a control member - Google Patents

Connecting device between a regulating member for regulating the power of a combustion engine and a control member Download PDF

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Publication number
WO1983000534A1
WO1983000534A1 PCT/DE1982/000157 DE8200157W WO8300534A1 WO 1983000534 A1 WO1983000534 A1 WO 1983000534A1 DE 8200157 W DE8200157 W DE 8200157W WO 8300534 A1 WO8300534 A1 WO 8300534A1
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WO
WIPO (PCT)
Prior art keywords
actuator
power control
combustion engine
internal combustion
connecting device
Prior art date
Application number
PCT/DE1982/000157
Other languages
German (de)
French (fr)
Inventor
Nsu Auto Union Ag Audi
Original Assignee
Brockhaus, Herbert
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.)
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Publication date
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Application filed by Brockhaus, Herbert filed Critical Brockhaus, Herbert
Publication of WO1983000534A1 publication Critical patent/WO1983000534A1/en

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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
    • F02D11/105—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 characterised by the function converting demand to actuation, e.g. a map indicating relations between an accelerator pedal position and throttle valve opening or target engine torque
    • 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
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0261—Arrangements; Control features; Details thereof having a specially shaped transmission member, e.g. a cam, specially toothed gears, with a clutch
    • 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
    • F02D2011/101—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 characterised by the means for actuating the throttles
    • F02D2011/103—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 characterised by the means for actuating the throttles at least one throttle being alternatively mechanically linked to the pedal or moved by an electric actuator

Definitions

  • the invention relates to a connecting device between a power control element of an internal combustion engine and an actuator.
  • This connecting device is provided for the use of actuators which actuate a servomotor via an electronic control unit.
  • the servomotor controls the power control element of the internal combustion engine.
  • an actuator usually the accelerator pedal
  • a power control element in gasoline engines in general the throttle valve and in diesel engines the control rod, so that there is a clear assignment between the position of the actuator and the position of the power control element.
  • a disadvantage the This clear assignment lies in the fact that the internal combustion engine is operated more or less frequently in unfavorable operating points, in which it works with a relatively high specific consumption.
  • a generic connecting device is proposed in DE-OS 29 26 105, in which the accelerator pedal is connected to the throttle clamp aDpe via a Bowden cable and the throttle valve is additionally actuated by a servomotor which is controlled by an electronic control unit.
  • the arrangement is such that the throttle valve can be increasingly moved to the open position with increasing actuation of the accelerator pedal, the position of the accelerator pedal determining the minimum opening of the throttle valve.
  • the servomotor can move the throttle valve out of each opening to a more open position, in which case the Bowden cable will come loose.
  • a peculiarity of the known device is that the electronic control unit has no possibility, for example with a half-actuated accelerator pedal, in its closed or only very little open position. This limits the working area for the electronic control unit.
  • the invention has for its object to develop a generic connector according to the fact that despite the existing direct connection between the actuator and power control, which ensures operability of the internal combustion engine even in the event of a defect in the control device, the widest possible working range for the control device is made possible.
  • the coupling according to the invention between the actuating member and the power control member reduces the minimum opening of the power control member which is fixed by the mechanical connecting device in accordance with the position of the actuating member, as a result of which the opening range of the power control member which can be determined by the control device and which lies between the respective minimum opening and the full load position is increased is.
  • the possible working range of the control system is expanded without the risk that the internal combustion engine can no longer be controlled via the actuating element if the control device fails.
  • This controllability is only somewhat less precise due to the coupling according to the invention.
  • the straight line running from ⁇ 1 to point ⁇ max / ⁇ max gives an example of the coupling provided according to the invention between the position of the actuating element and the position of the power control element. Up to an actuation of the actuator to the angle ⁇ 1, there is no opening of the power control element at all. When the actuator is actuated from ⁇ 1 to ⁇ max, the power control element is fully opened. The possible working area of a control device is extended by the simply hatched area.
  • Fig. 2 shows an embodiment of a connecting device with which the described expansion of the work area can be achieved.
  • an accelerator pedal 4 articulated at 2 is connected via a Bowden cable 6, the fixed sleeve 8 of which is not shown completely, to a lever 10 which is connected in a rotationally fixed manner to a throttle valve 12 of an internal combustion engine, not shown.
  • the cable 14 of the Bowden cable 6 is slidably guided through a socket 16 attached to the lever 10.
  • the end of the cable 14 is provided with a stop 18 which rotates the lever 10 according to FIGS. 2 and 3 in the clockwise direction and thereby opens the throttle valve 12 when it comes into contact with the bush 16.
  • a return spring 20 acts on the stop 18 and urges the accelerator pedal 4 into the same idle position.
  • a return spring 22 acts on the lever 10 and urges the throttle valve into its closed or idle position.
  • a further bushing 24 is attached, through which an actuating rod 26 slidably extends, which is provided with a stop 28 at its free end.
  • the actuating rod 26 can be displaced by means of a servomotor 30 which can be controlled by an electronic control device 32.
  • the electronic control unit 32 is connected to a variable resistor 34, which senses the position of the accelerator pedal 4.
  • control unit can be connected, for example, to a speed sensor and a temperature sensor or an intake manifold pressure sensor of the internal combustion engine, not shown. Further inputs of the control device 32 are connected to a full throttle switch 40 and an idle switch 42.
  • the function of the arrangement described is as follows: When the accelerator pedal 4 is actuated by a certain angle ⁇ , the throttle valve 12 is moved into the opening position given by the actuation of the accelerator pedal 4, as shown in FIG.
  • the electronic tax Device 32 controls the servomotor 30 in accordance with the value stored in it, which depends on the operating parameters of the internal combustion engine and, in the example shown, also the position of the accelerator pedal 4. Because the throttle valve 12 is initially not opened at all via the accelerator pedal 4 the possible working range of the electronic control unit 32 is extremely large.
  • control unit 32 and its mode of operation are not part of the invention. This control unit 32 is therefore not explained in detail.
  • programs can be stored which, despite sudden accelerating, ensure a smooth, yet fuel-efficient start-up of the internal combustion engine, or which assign each accelerator pedal position 4 to a specific setpoint speed of the internal combustion engine or setpoint speed of the vehicle, etc.
  • the invention can be used to control internal combustion engines, particularly in motor vehicles. Possible applications are both spark-ignited internal combustion engines and diesel engines if, instead of the throttle valve 12, the power control element is formed by the control rod, an injection pump. With the device it can then be achieved, for example, that the control rod is actuated less strongly as a function of operating parameters of the internal combustion engine when the accelerator pedal is actuated to avoid sooting the engine.

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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

Connecting device (6, 16, 18) between a member (12) regulating the power of a combustion engine, particularly an engine for a motor vehicle, and a control member (4). Said device is designed so that, upon small displacements of the control member (4), the regulating member (12) opens just a little or not at all, but opens clearly and comes into a full power position upon larger displacements. Such a connection or link (6, 16, 18) allows to increase the working range of a regulating installation (30, 32) actuating a power regulating member (12) depending on the position of the control member (4) and of at least one operating parameter (36, 38) within a range comprised between the full power position and the minimum opening position determined by the position occupied by the control member (4).

Description

Verbindungseinrichtung zwischen einem Leistungs: steuerglied einer Brennkraftmaschine und einem Betätigungsgl ied Connecting device between a power control element of an internal combustion engine and an actuating element
Technisches GebietTechnical field
Die Erfindung bezieht sich auf eine Verbindungs einrichtung zwischen einem Leistungssteuerglied einer Brennkraftmaschine und einem Betätigungsglied. Diese Verbindungseinrichtung ist für den Einsatz von Betätigungsgliedern vorgesehen, die über eine elektronische Steuereinheit einen Stellmotor betätigen. Der Stellmotor steuert das Leistungssteuerglied der Brennkraftmaschine an.The invention relates to a connecting device between a power control element of an internal combustion engine and an actuator. This connecting device is provided for the use of actuators which actuate a servomotor via an electronic control unit. The servomotor controls the power control element of the internal combustion engine.
Zugrundeliegender Stand der TechnikUnderlying state of the art
In neuerer Zeit kommt der Kraftstoffeinsparung zunehmende Bedeutung zu. Bei herkömmlichen Brennkraftmaschinen in Kraftfahrzeugen ist ein Betätigungsglied, meist das Gaspedal, in allgemeinen starr mit einem Leistungssteuerglied, bei Ottomotoren im allgemeinen der Drosselklappe und bei Dieselmotoren der Regelstange, verbuncen, so daß eine eindeutige Zuordnung zischen Stellung des Betätigungsgliedes und Stellung des Leistungssteuergliedes besteht. Ein Nachteil die ser eindeutigen Zuordnung liegt darin, daß die Brennkraftmaschine mehr oder weniger häufig in ungünstigen Betriebspunkten betrieben wird, in denen sie mit einem verhältnismäßig hohen spezifischen Verbrauch arbeitet.In recent times, fuel saving has become increasingly important. In conventional internal combustion engines in motor vehicles, an actuator, usually the accelerator pedal, is generally rigid with a power control element, in gasoline engines in general the throttle valve and in diesel engines the control rod, so that there is a clear assignment between the position of the actuator and the position of the power control element. A disadvantage the This clear assignment lies in the fact that the internal combustion engine is operated more or less frequently in unfavorable operating points, in which it works with a relatively high specific consumption.
Zur Vermeidung dieses Nachteils ist in der DE-OS 29 26 105 eine gattunqsgemäße Verbindungseinrichtung vorgeschlagen, bei der das Gaspedal über einen Bowdenzug mit der Drosselkl aDpe verbunden ist und die Drosselklappe zusätzlich von einem Stellmotor betätigt wird, der von einer elektronischen Steuereinheit angesteuert wird. Die Anordnung ist dabei so, daß die Drosselklappe mit zunehmender Betätigung des Gaspedals zunehmend in Offenstellung bewegt werden kann, wobei die Stellung des Gaspedals die Mindestöffnung der Drosselklappe bestimmt. Der Stellmotor kann die Drosselklappe mit Ausnahme der Vollaststel lung aus jeder üffnung heraus in eine weiter geöffnete Stellung bewegen, wobei dann der Seilzug des Bowdenzugs lose kommt. Mit der bekannten Anordnung wird erreicht, daß die Brennkraftmaschine beim Beschleunigen zunächst jeweils mit der DrosselklappenStellung hochläuft, die durch das Gaspedal eingestellt ist. Sobald dann eine in der elektronischen Steuereinheit gespeicherte verbrauchsgünstige Kurve im LeistungsDrehzahl -Kennfeld erreicht wird, wird die Drosselklappe selbsttätig vom Stellmotor derart weiter geöffnet, daß die Brennkraftmaschi ne auf dieser gewählten verbrauchsgünstigen Kupve weiter hochläuft.To avoid this disadvantage, a generic connecting device is proposed in DE-OS 29 26 105, in which the accelerator pedal is connected to the throttle clamp aDpe via a Bowden cable and the throttle valve is additionally actuated by a servomotor which is controlled by an electronic control unit. The arrangement is such that the throttle valve can be increasingly moved to the open position with increasing actuation of the accelerator pedal, the position of the accelerator pedal determining the minimum opening of the throttle valve. With the exception of the full load setting, the servomotor can move the throttle valve out of each opening to a more open position, in which case the Bowden cable will come loose. With the known arrangement it is achieved that the internal combustion engine starts up when accelerating with the throttle position, which is set by the accelerator pedal. As soon as a fuel-efficient curve stored in the electronic control unit is reached in the power-speed map, the throttle valve is automatically opened further by the servomotor in such a way that the internal combustion engine continues to run up on this fuel-efficient coupe.
Eine Eigenart der bekannten Einrichtung liegt darin, daß die elektronische Steuereinheit keine Möglichkeit hat, die Drosselklappe beispielsweise bei halbbetätigtem Gaspedal in ihre geschlossene oder nur ganz wenig geöffnete Stellung zu bewegen. Dadurch ist der Arbeitsbereich für die elektronische Steuereinheit begrenzt.A peculiarity of the known device is that the electronic control unit has no possibility, for example with a half-actuated accelerator pedal, in its closed or only very little open position. This limits the working area for the electronic control unit.
Offenbarung der ErfindungDisclosure of the invention
Der Erfindung liegt die Aufgabe zugrunde, eine gattungs gemäße Verbindungseinrichtung dahingehend weiterzubilden, daß trotz der vorhandenen unmittelbaren Verbindung zwischen Betätigungsglied und Leistungssteuerglied, welche die Betrei bbarkeit der Brennkraftmaschine auch bei einem Defekt in der Regeleinrichtung sicherstellt, ein möglichst weiter Arbeitsbereich für die Regeleinrichtung ermöglicht wird.The invention has for its object to develop a generic connector according to the fact that despite the existing direct connection between the actuator and power control, which ensures operability of the internal combustion engine even in the event of a defect in the control device, the widest possible working range for the control device is made possible.
Diese Aufgabe wird mit den Merkmalen des Anspruchs 1 ge löst.This object is achieved with the features of claim 1 ge.
Durch die erfindungsgemäße Kupplung zwischen dem Betätigungsglied und dem Leistungssteuerglied wird die durch die mechanische Verbindungseinrichtung festgeleate minimale Öffnung des Leistungssteuergliedes entsprechend der Stellung des Betätigungsgliedes vermindert, wodurch der durch die Regeleinrichtung bestimmbare Uffnungsbereich des Leistungssteuergliedes, der zwischen der jeweiligen minimalen Öffnung und der Vollaststellung liegt, vergrößert ist. Auf diese Weise ist der mögliche Arbeitsbereich der Re ge l e i nr i c htu n g erweitert ohne daß die Gefahr bestünde, daß die Brennkraftmaschine bei Ausfall d er Regeleinrichtung über das Eetätigungsglied nicht mehr steuerbar ist. Diese Steuerbarkeit wird durch die erfindungsgemäße Kopplung lediglich etwas ungenauer. Die von α1 zum Punktα max / β max laufende Gerade gibt ein Beispiel für das erfindungsgemäß vorgesehene Koppeln zwischen Stellung des Betätigungsgliedes und Stel- lunt des Leistungssteuergliedes an. Bis zu einer Betätigung des Betätigungsgliedes zum Winkeleα 1 tritt überhaupt-keine Öffnung des Leistungssteuergliedes auf. Bei der Betätigung des Betätigungsgliedes von α 1 bis α max wird das Leistungssteuerglied voll geöffnet. Der mögliche Arbeitsbereich einer Regeleinrichtung ist um die einfach schraffierte Fläche erweitert.The coupling according to the invention between the actuating member and the power control member reduces the minimum opening of the power control member which is fixed by the mechanical connecting device in accordance with the position of the actuating member, as a result of which the opening range of the power control member which can be determined by the control device and which lies between the respective minimum opening and the full load position is increased is. In this way, the possible working range of the control system is expanded without the risk that the internal combustion engine can no longer be controlled via the actuating element if the control device fails. This controllability is only somewhat less precise due to the coupling according to the invention. The straight line running from α 1 to point α max / β max gives an example of the coupling provided according to the invention between the position of the actuating element and the position of the power control element. Up to an actuation of the actuator to the angle α 1, there is no opening of the power control element at all. When the actuator is actuated from α 1 to α max, the power control element is fully opened. The possible working area of a control device is extended by the simply hatched area.
Fig. 2 zeigt ein Ausführungsbeispiel einer Verbindungseinrichtung, mit der sich die geschilderte Erweiterung des Arbeitsbereiches erzielen läßt. Gemäß Fig. 2 ist ein bei 2 angelenktes Gaspedal 4 über einen Bowdenzug 6, dessen ortsfeste Hülse 8 nicht vollständig dargestellt ist, mit einem Hebel 10 verbunden, der mit einer Drosselklappe 12 einer nicht dargestellten Brennkraftmaschine drehfest verbunden ist. Dazu ist das Seil 14 des Bowdenzuges 6 durch eine am Hebel 10 angebrachte Buchse 16 verschiebbar hindurchgeführt. Das Ende des Seils 14 ist mit einem Anschlag 18 versehen, welcher cen Hebel 10 gemäß Fig. 2 und 3 in Uhrzeigerrichtung dreht und dadurch die Drosselklappe 12 öffnet, wenn er in Anlage an die Buchse 16 kommt. Am Anschlag 18 greift eine Rückholfeder 20 an, welche das Gaspedal 4 in die gleiche LeerlaufStellung drängt.Fig. 2 shows an embodiment of a connecting device with which the described expansion of the work area can be achieved. According to FIG. 2, an accelerator pedal 4 articulated at 2 is connected via a Bowden cable 6, the fixed sleeve 8 of which is not shown completely, to a lever 10 which is connected in a rotationally fixed manner to a throttle valve 12 of an internal combustion engine, not shown. For this purpose, the cable 14 of the Bowden cable 6 is slidably guided through a socket 16 attached to the lever 10. The end of the cable 14 is provided with a stop 18 which rotates the lever 10 according to FIGS. 2 and 3 in the clockwise direction and thereby opens the throttle valve 12 when it comes into contact with the bush 16. A return spring 20 acts on the stop 18 and urges the accelerator pedal 4 into the same idle position.
An dem Hebel 10 greift eine Rückholfeder 22 an, welche die Drosselklappe in ihre geschlossene bzw. Leerlaufstellung drängt.A return spring 22 acts on the lever 10 and urges the throttle valve into its closed or idle position.
In der dargestellten Leer! aufstell ung , in der die Drosselklappe 12 voll geschlossen ist und das Gaspedal 4 nicht betätigt ist, besteht zwischen dem Anschlag 18 und der Buchse 16 ein Freigang um eine Strecke s, der etwa derjenigen Strecke entspricht, um die der Anschlag 18 bewegt wird, wenn das Gaspedal 4 um den Winkel α1 der etwa der Hälfte des Betätigungsbereichs des Gaspedal 4 entspricht, betätigt wird. Wenn das Gaspedal 4 von α1nach α max bewegt wird, wird die Drosselklappe 12 vom Anschlag 18 in ihre vollgeöffnete Stellung bewegt.In the space shown! Aufstell ung, in which the throttle valve 12 is fully closed and the accelerator pedal 4 is not operated, there is a clearance between the stop 18 and the socket 16 by a distance s, the corresponds approximately to the distance by which the stop 18 is moved when the accelerator pedal 4 is actuated by the angle α1, which corresponds to approximately half the actuation range of the accelerator pedal 4. When the accelerator pedal 4 is moved from α 1 to α max, the throttle valve 12 is moved by the stop 18 into its fully open position.
Am anderen Ende des Hebels 10 ist eine weitere Buchse 24 angebracht, durch die sich verschiebbar eine Betä tigungsstange 26 hindurcherstreckt, die an ihrem freien Ende mit einem Anschlag 28 versehen ist. Die Betätigungsstange 26 ist mittels eines Stellmotors 30 verschiebbar, welcher von einem elektronischen Steuergerät 32 her ansteuerbar ist.At the other end of the lever 10, a further bushing 24 is attached, through which an actuating rod 26 slidably extends, which is provided with a stop 28 at its free end. The actuating rod 26 can be displaced by means of a servomotor 30 which can be controlled by an electronic control device 32.
Das elektronische Steuergerät 32 ist mit einem Stellwiderstand 34 verbunden, welcher die Stellung des Gaspedals 4 abtastet.The electronic control unit 32 is connected to a variable resistor 34, which senses the position of the accelerator pedal 4.
Weitere Eingänge 36 und 38 des Steuergerätes können beispielweise mit einem Drehzahlfühler und einem Temperaturfühler oder einem Saugrohrdruckfühler der nicht dargestellten Brennkraftmaschine verbunden sein. Weitere Eingänge des Steuergerätes 32 sind mit einem VollgasSchalter 40 und einem Leerlaufschalter 42 verbunden.Further inputs 36 and 38 of the control unit can be connected, for example, to a speed sensor and a temperature sensor or an intake manifold pressure sensor of the internal combustion engine, not shown. Further inputs of the control device 32 are connected to a full throttle switch 40 and an idle switch 42.
Die Funktion der beschriebenen Anordnung ist folgende: Wenn das Gaspedal 4 um einen bestimmten Winkel α betätigt wird, wird die Drosselklappe 12 entsprechend Fig. 1 in die durch die Betätigung des Gaspedals 4 gegebene Öffnungsstell ung bewegt. Das elektronische Steuer gerät 32 steuert den Stellmotor 30 entsprechend dem in ihm gespeicherten Wert, der von den j ewe i l i gen Betriebsparametern der Brennkraftmaschine und im dargestellten Beispiel zusätzlich der Stellung des Gaspedals 4 abhängt Dadurch, daß die Drosselklappe 12 über das Gaspedal 4 zunächst überhaupt nicht geöffnet wird, ist der möglϊehe Arbeitsbereich des elektronischen Steuergeräts 32 außerordentlich groß.The function of the arrangement described is as follows: When the accelerator pedal 4 is actuated by a certain angle α, the throttle valve 12 is moved into the opening position given by the actuation of the accelerator pedal 4, as shown in FIG. The electronic tax Device 32 controls the servomotor 30 in accordance with the value stored in it, which depends on the operating parameters of the internal combustion engine and, in the example shown, also the position of the accelerator pedal 4. Because the throttle valve 12 is initially not opened at all via the accelerator pedal 4 the possible working range of the electronic control unit 32 is extremely large.
Das elektronische Steuergerät 32 und seine Arbeitsweise bilden keinen Gegenstand der Erfindung. Dieses Steuergerät 32 wird daher nicht näher erläutert. Im Steuergerät 32 können beispielsweise Programme gespeichert werden, welche trotz plötzlichen Gasgebens für ein weiches und dennoch verbrauchsgünstiges Hochlaufen der Brennkraftmaschine sorgen oder welche jeder GaspedalStellung 4 eine bestimmte Solldrehzahl der Brennkraftmaschine oder Sollgeschwindigkeit des Fahrzeugs zuordnen usw.The electronic control unit 32 and its mode of operation are not part of the invention. This control unit 32 is therefore not explained in detail. In control unit 32, for example, programs can be stored which, despite sudden accelerating, ensure a smooth, yet fuel-efficient start-up of the internal combustion engine, or which assign each accelerator pedal position 4 to a specific setpoint speed of the internal combustion engine or setpoint speed of the vehicle, etc.
Gewerbliche VerwertbarkeitCommercial usability
Die Erfindung läßt sich einsetzen zur Steuerung von Brennkraftmaschinen, insbesondere bei Kraftfahrzeugen. Einsatzmöglichkeiten sind sowohl fremdgezündete Brennkraftmaschinen, wie auch Dieselmotoren, wenn an ste l l e der Drosselklappe 12 das Leistungssteuerglied durch die Regelstange eine Einspritzpumpe gebildet ist. Mit der Vorrichtung kann dann beispielsweise erreicht werden, daß bei einer starken Betätigung des Gaspedals die Regelstange in Abhängigkeit von Betriebsparametern der Brennkraftmaschine weniger stark betätigt wird, um ein Rußen des Motors zu vermeiden.The invention can be used to control internal combustion engines, particularly in motor vehicles. Possible applications are both spark-ignited internal combustion engines and diesel engines if, instead of the throttle valve 12, the power control element is formed by the control rod, an injection pump. With the device it can then be achieved, for example, that the control rod is actuated less strongly as a function of operating parameters of the internal combustion engine when the accelerator pedal is actuated to avoid sooting the engine.
Es versteht sich, daß die beschriebene Vorrichtung auch bei Bootsmotoren und stationären Motoren einsetzbar ist. It is understood that the device described can also be used in boat engines and stationary engines.

Claims

A n s p r ü c h e Expectations
1. Verbindungseinrichtung zwischen einem Leistungssteuerglied einer Brennkraftmaschine, insbesondere für Kraftfahrzeuge, und einem Betätigungsglied, welche Brennkraftmaschine eine Regeleinrichtung aufweist, die das Leistungssteuerglied in Abhängigkeit von der Stellung des Betätigungs gliedes und wenigstens eines Betriebsparameters der Brennkraftmaschine in einem Bereich steuert, der zwischen der Vollaststellung und einer durch die jeweilige Stellung des. Betätigungsgliedes ge gebenen minimalen öffnungsstell ung liegt, und welche Verbindungseinrichtung das Leistungssteuerglied bei vollbetätigtem Betätigungsglied in Vollaststellung bewegt, dadurch gekennzeichnet, daß die mechanische Verbindungseinrichtung (6, 16, 18) eine Kupplung zwischen Betätigungsglied (Gaspedal 4) und Leistungssteuerglied (Drosselklappe 12) herstellt, welche einer bestimmten Änderung der Stellung des Betätigungsgliedes im Bereich kleiner Betätigungen eine kleinere Änderung der Stellung des Leistungssteuergliedes zuordnet als im Bereich größerer Betätigungen. Die Ansprüche 2 und 3 sind auf vorteilhafte Ausführungsformen der Verbindungseinrichtung gerichtet.1.Connection device between a power control element of an internal combustion engine, in particular for motor vehicles, and an actuating element, which internal combustion engine has a control device which controls the power control element as a function of the position of the actuating element and at least one operating parameter of the internal combustion engine in a region which is between the full load position and a minimum opening position given by the respective position of the actuator. and which connecting device moves the power control member when the actuator is fully actuated in the full load position, characterized in that the mechanical connecting device (6, 16, 18) has a coupling between the actuator (accelerator pedal 4) and Power control member (throttle valve 12) produces, which a certain change in the position of the actuator in the area of small operations a smaller change in the position of the power control assigned to the member than in the area of larger operations. Claims 2 and 3 are directed to advantageous embodiments of the connecting device.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Fig. 1 zeigt ein Schema des möglichen Arbeitsbereiches der Regeleinrichtung;1 shows a diagram of the possible working range of the control device;
Fig. 2 zeigt eine Skizze der Ansteuerung eines Leistungssteuergliedes; undFig. 2 shows a sketch of the control of a power control element; and
Fig. 3 stellt einen vergrößerten Ausschnitt aus Fig. 2 dar.FIG. 3 shows an enlarged section from FIG. 2.
Bester Weg zur Ausführung der ErfindungBest way to carry out the invention
Fig. 1 zeigt auf der Abszisse als Maß für die Betätigung eines Betätigungsgliedes den Winkel und auf der Ordinate als Maß für die Stellung eines Leistungsteuergliedes einer Brennkraftmaschine den Winkel β : α max gibt die maximale Betätigung des Betätigungsçliedes an. β max gibt die Vollaststellung des Leistungssteuergliedes an. Die gestrichelte Gerade zeigt die Zuordnung zwischen Stellung des Betätigungsgliedes und Stel lung des Leistungssteuergliedes, wie sie herkömmlicher Weise vorhanden ist. Diese Zuordnung kann linear oder progressiv sein oder in sonstiger Weise an die jeweiligen Erfordernisse angepaßt sein. Der Arbeitsbereich für eine Regeleinrichtung, welche das Betätiçungsglied in Abhängigkeit von verschiedenen Betriebsparametern der Brennkraftmaschine und ggf. der Stellung des Betätigungsgl iedes über die durch die jeweilige Stellung des Betätigungsgliedes gegebene Stellung hinaus öffnet, ist durch den doppelt schraffierten Bereich gegeben. 1 shows the angle on the abscissa as a measure for the actuation of an actuating element and the angle β on the ordinate as a measure for the position of a power control element of an internal combustion engine: α max indicates the maximum actuation of the actuating element. β max indicates the full load position of the power control element. The dashed straight line shows the assignment between the position of the actuator and Stel development of the power control element, as is conventionally available. This assignment can be linear or progressive or in some other way adapted to the respective requirements. The working area for a control device, which opens the actuator depending on various operating parameters of the internal combustion engine and possibly the position of the actuator beyond the position given by the respective position of the actuator, is given by the double hatched area.
2. Verbindungseinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß über etwa die erste Hälfte des Betätigungsbereiches des Betätigungsgliedes (Gaspedal 4) ein Freigang zwischen dem Betätigungsglied und dem Leistungssteuerglied (Drosselklappe 12) vorhan den ist.2. Connecting device according to claim 1, characterized in that over about the first half of the actuating area of the actuator (accelerator pedal 4) there is clearance between the actuator and the power control member (throttle valve 12).
3. Verbindungseinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß ein mit dem Leistungssteu. erglied (Drosselklappe 12) bewegungsübertragend ge kuppeltes Bauteil (Buchse 16) ein mit dem Betätigungsglied (Gaspedal 4) bewegungsübertragend gekuppeltes Bauteil (Seil 14) verschiebbar aufnimmt, welches einen eine Bewegungsübertragung zwischen Betätigungsglied und Leistungssteuerglied hervorrufen den Anschlag (18) aufweist. 3. Connection device according to claim 1 or 2, characterized in that one with the power tax. member (throttle valve 12) motion-transmitting component (socket 16) slidably receives a component (rope 14) with the actuator (accelerator pedal 4) motion-transmitting, which has a movement transmission between actuator and power control element causing the stop (18).
PCT/DE1982/000157 1981-08-08 1982-07-28 Connecting device between a regulating member for regulating the power of a combustion engine and a control member WO1983000534A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3131553A DE3131553C2 (en) 1981-08-08 1981-08-08 Connection device between a power control element of an internal combustion engine, in particular for motor vehicles, and an actuator
DEP3131553.4810808 1981-08-08

Publications (1)

Publication Number Publication Date
WO1983000534A1 true WO1983000534A1 (en) 1983-02-17

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PCT/DE1982/000157 WO1983000534A1 (en) 1981-08-08 1982-07-28 Connecting device between a regulating member for regulating the power of a combustion engine and a control member

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US (1) US4524740A (en)
EP (1) EP0085082A1 (en)
JP (1) JPS58501242A (en)
DE (1) DE3131553C2 (en)
WO (1) WO1983000534A1 (en)

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WO1989007706A1 (en) * 1988-02-18 1989-08-24 Siemens Aktiengesellschaft Accelerator control apparatus
USRE34302E (en) * 1989-09-18 1993-07-06 Siemens Automotive L.P. Accelerating pedal for electronic throttle actuation system

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WO1989007706A1 (en) * 1988-02-18 1989-08-24 Siemens Aktiengesellschaft Accelerator control apparatus
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Also Published As

Publication number Publication date
DE3131553C2 (en) 1983-12-01
JPH0235140B2 (en) 1990-08-08
US4524740A (en) 1985-06-25
DE3131553A1 (en) 1983-02-24
JPS58501242A (en) 1983-07-28
EP0085082A1 (en) 1983-08-10

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