EP2047087B1 - Device and method for actuating a power control device of an internal combustion engine - Google Patents

Device and method for actuating a power control device of an internal combustion engine Download PDF

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Publication number
EP2047087B1
EP2047087B1 EP07765040.6A EP07765040A EP2047087B1 EP 2047087 B1 EP2047087 B1 EP 2047087B1 EP 07765040 A EP07765040 A EP 07765040A EP 2047087 B1 EP2047087 B1 EP 2047087B1
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EP
European Patent Office
Prior art keywords
power control
input
control device
coupling
actuating
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EP07765040.6A
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German (de)
French (fr)
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EP2047087A1 (en
Inventor
Berndt Roehrig
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Bayerische Motoren Werke AG
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Bayerische Motoren Werke AG
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Publication of EP2047087A1 publication Critical patent/EP2047087A1/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
    • F02D11/107—Safety-related aspects
    • 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
    • F02D11/02—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by hand, foot, or like operator controlled initiation means
    • 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
    • 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
    • F02D2009/0267—Arrangements; Control features; Details thereof for simultaneous action of a governor and an accelerator lever on the throttle
    • 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 device for actuating a power control device of an internal combustion engine comprising a driver-actuated input device for driver input of a power desired, a sensor device for detecting the position of the input device and generating a corresponding output signal and an adjusting device for adjusting the power control device taking into account the output signal of the sensor device, wherein the Power control means by means of the adjusting device by the signal of the input device is actuated deviating, wherein the adjusting device is connected to the power control means by means of an input and an output part having a coupling whose input part of the actuator and the output part of the power control device is assigned, and a method for actuating such power control means.
  • the DE 198 25 283 A1 describes a motor power control for motor vehicles with a power control element that decouples from the Power requirement of the driver reproducing operation of the accelerator pedal in response to various operating parameters by means of an electronic control unit is controlled.
  • this engine power control in case of failure, especially in case of failure of the connection between a sensor associated with the accelerator pedal and the control unit in an emergency driving the maximum engine power is limited and yet ensures a very good driving dynamics.
  • the safety in the event of a fault is already substantially increased in the known engine output control, however, a further improvement in safety is possible.
  • a gas governor is known with an actuation disk which, as a function of an actuation of an accelerator pedal, performs a rotational movement about an acceleration axis and a disk holder which is displaceable relative to the actuation disk.
  • a limit switch is arranged on the actuating disk.
  • On the plate holder a cam is arranged on the plate holder.
  • a displacement between the limit switch and the cam is generated.
  • the limit switch is actuated by the cam and electrification of an electromagnetic coil is interrupted. As a result, a connection state between a clutch plate and a rotor is released.
  • EP 0 306 640 A2 is an electrically controllable adjusting device for adjusting the throttle of a Brenngemisch- or air throttle device of internal combustion engines with a driven by the accelerator pedal via a pedal or setpoint potentiometer electric motor, which is coupled via a downstream reduction gear and an electromagnetic clutch with the throttle shaft and the throttle valve actuated against the force of a return spring, wherein a mechanically coupled to the accelerator pedal actuating lever is rotatably disposed coaxially with the throttle shaft and a separate electromagnetic clutch with a non-rotatable, but axially displaceable on the throttle shaft arranged coupling element of the electromagnetic clutch via coupling devices - lugs and recesses - connected is.
  • the object of the invention is therefore to increase safety in an aforementioned device for actuating a power control device of an internal combustion engine and in particular to prevent inadvertently high engine power due to a driver not wanted by the driver control of the power control element.
  • the invention is based on the idea that the adjusting device is connected to the power control device by means of a coupling having an input and an output part whose input part is assigned to the adjusting device and whose output part is the power control device and the clutch is a friction clutch, wherein the parameters controlling the clutch the clutch for the actuation of the power control device is determining and for the mechanical connection of the input device with the power control device, the input device with the output part of the clutch is force-transmitting connectable, wherein a decoupling of the actuator of the power control device depending on the coefficient of friction of the friction clutch when exceeding a predetermined force between Input and output part of the friction clutch takes place.
  • This makes it possible to decouple the actuating device from the power control device, so that the position of the actuating device is no longer relevant to the position of the power control device.
  • the desired power input by means of the input device on the driver side is preferred to the position of the actuating device based on sensor signals, thus increasing safety.
  • an actuation of the power control device by means of the input device or the adjusting device take place, wherein the clutch controlling parameters for the actuation of the power control device are determining.
  • the output part of the coupling has a counter contour corresponding to a contour assigned to the input device.
  • the output part of the coupling is a shaft associated with a first rotation element with a cutout, which covers an angular range of 60 ° -110 °, in particular of about 80 ° -90 °, with which a pin-shaped extension of the input device associated second rotary element corresponds ,
  • the clutch when opening the power control device by means of the adjusting device, the clutch movement transmitting and the priority closing of the power control device by means of the input device, the clutch is not movement-transmitting.
  • the invention is further based on the idea that in a method for actuating a power control device of an internal combustion engine in a deviation of the input by means of the input device input power desired from the adjusted by means of the actuator position of the power control device by at least a predetermined amount in the closing direction of the driver input by means of the input device Power requirement for adjusting the power control device is primarily used, wherein the mechanical connection of the input device with the power control device, the input device is force-transmittingly connected to the output part of the clutch and decoupling the actuator of the power control device depending on the coefficient of friction of the friction clutch when a predetermined force between input and Output part of the friction clutch takes place.
  • the actuating device is decoupled from the power control device and the Power control device operated directly by means of the input device.
  • Actuation of the power control device takes place by means of the adjusting device from the signal of the input device deviating with a limited gradient. Thus, an excessively fast actuation of the power control device in the opening direction is prevented.
  • FIG. 1 shows a device 100 for actuating a power control device 134 of an internal combustion engine, not shown here a clutch 138 disposed between an actuator 122 and the power control device 134.
  • the device 100 is for operating an internal combustion engine of a motorcycle and the power control device 134 is a throttle valve, however, in one embodiment, an internal combustion engine of a motor vehicle can be actuated and / or the power control device 134 is a Kraftstoffzumessventil or means for Hub Whynver selectedung an intake valve of an internal combustion engine his.
  • the throttle valve is pivotable in the opening direction and to reduce the power in the closing direction.
  • the throttle valve is rotatably connected to a throttle valve shaft 130, which is rotatable either by means of an here designed as an electric motor actuator 122 or manually by means of a here designed as a throttle grip input device 102.
  • the driver inputs a power by means of the input device 102 by correspondingly rotating the throttle grip.
  • a first pulley 104 is rotatably connected, which operates via a cable 106, a second pulley 108.
  • the second pulley 108 is rotatably connected to a shaft 110, so that upon actuation of the throttle grip the shaft 110 is rotated.
  • the rotation or the rotational position of the shaft 110 can be detected by means of a sensor 112, which is connected in a signal-conducting manner to a control device 118 by a line 114.
  • the rotation or the rotational position of the throttle valve shaft 130 can be detected, which is connected to the control device 118 in a signal-conducting manner with a line 126.
  • the control device 118 Based on the signals of the sensors 112, 128 and optionally further signals and / or stored information, the control device 118 outputs via a line 120 to the performance request of the driver corresponding control signal to the actuator 122, which - in this case connected by means of a gear 124 with an input part of the clutch 138 - is in rotational drive connection with the throttle shaft 130.
  • Both the shaft 110 and the throttle shaft 130 are acted upon by springs 116, 132 which are supported on the housing side in the throttle valve closing direction.
  • FIG. 2a A detailed view of the coupling 138 with mechanical connection between the coupling output part 244 and the input device 102 is shown in longitudinal section in FIG. 2a and in cross section in FIG. 2b shown. Additionally or alternatively, in addition to an actuation by means of the adjusting device 122, a manual actuation of the power control device 134 by means of the input device 102 is possible.
  • the present arrangement represents a safety device, which in a deviation of the input by means of the input device 102 (throttle grip) driver input side reduced power desired from the setting means of the adjusting device 122 (electric motor) position of the power control device 134 (throttle) by at least a predetermined amount or at the driver side Entering a reduced power desired by means of the input device 102 with a gradient exceeding a predetermined gradient, a preferred consideration of the means of the input device 102 (throttle grip) driver input side reduced power desired guaranteed.
  • the second pulley 108 and the input part 244 of the clutch 138 are arranged in the axial direction adjacent to at least approximately aligned axes rotatable.
  • the second pulley 108 has a pin-shaped extension 246 which engages in a cutout 248 of the coupling output part 244.
  • an actuation of the power control device 134 can take place by means of the adjusting device 122.
  • the adjusting device 122 is medium or directly connected to the input part 242 of the clutch 138.
  • the last element of the transmission between the adjusting device 122 and the power control device 134, the gearwheel 240 is connected in a rotationally fixed manner to the input part 242 of the clutch 138.
  • a gradient exceeding a predetermined gradient of the pin-shaped extension 246 comes on one of the cutout 248 bounding sides to the plant, so that the input device 102 is directly and positively connected force-transmitting with the output part 244 of the clutch 138.

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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)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)

Description

Die Erfindung betrifft eine Einrichtung zur Betätigung einer Leistungssteuerungseinrichtung einer Brennkraftmaschine umfassend eine fahrerbetätigbare Eingabeeinrichtung zur fahrerseitigen Eingabe eines Leistungswunsches, eine Sensoreinrichtung zur Erfassung der Stellung der Eingabeeinrichtung und Generierung eines entsprechenden Ausgangssignals und eine Stelleinrichtung zur Verstellung der Leistungssteuerungseinrichtung unter Berücksichtung des Ausgangssignals der Sensoreinrichtung, wobei die Leistungssteuerungseinrichtung mittels der Stelleinrichtung vom Signal der Eingabeeinrichtung abweichend betätigbar ist, wobei die Stelleinrichtung mit der Leistungssteuerungseinrichtung mittels einer ein Eingangs- und ein Ausgangsteil aufweisenden Kupplung verbunden ist, deren Eingangsteil der Stelleinrichtung und deren Ausgangsteil der Leistungssteuerungseinrichtung zugeordnet ist, sowie ein Verfahren zur Betätigung einer derartigen Leistungssteuerungseinrichtung.The invention relates to a device for actuating a power control device of an internal combustion engine comprising a driver-actuated input device for driver input of a power desired, a sensor device for detecting the position of the input device and generating a corresponding output signal and an adjusting device for adjusting the power control device taking into account the output signal of the sensor device, wherein the Power control means by means of the adjusting device by the signal of the input device is actuated deviating, wherein the adjusting device is connected to the power control means by means of an input and an output part having a coupling whose input part of the actuator and the output part of the power control device is assigned, and a method for actuating such power control means.

Die DE 198 25 283 A1 beschreibt eine Motorleistungsregelung für Kraftfahrzeuge mit einem Leistungssteuerorgan, das entkoppelt von der die Leistungsanforderung des Fahrers wiedergebenden Betätigung des Fahrpedals in Abhängigkeit von verschiedenen Betriebsparametern mittels eines elektronischen Steuergeräts steuerbar ist. Bei dieser Motorleistungsregelung ist im Fehlerfall, insbesondere bei Ausfall der Verbindung zwischen einem dem Fahrpedal zugeordneten Sensor und dem Steuergerät, in einem Notfahrbetrieb die maximale Motorleistung begrenzt und dennoch eine sehr gute Fahrdynamik gewährleistet. Die Sicherheit im Fehlerfall ist bei der bekannten Motorleistungsregelung dadurch bereits wesentlich erhöht, eine noch weitere Verbesserung der Sicherheit ist jedoch möglich.The DE 198 25 283 A1 describes a motor power control for motor vehicles with a power control element that decouples from the Power requirement of the driver reproducing operation of the accelerator pedal in response to various operating parameters by means of an electronic control unit is controlled. In this engine power control in case of failure, especially in case of failure of the connection between a sensor associated with the accelerator pedal and the control unit in an emergency driving the maximum engine power is limited and yet ensures a very good driving dynamics. The safety in the event of a fault is already substantially increased in the known engine output control, however, a further improvement in safety is possible.

Aus der JP 04 269337 A ist ein Gasregler bekannt mit einer Betätigungsscheibe, die abhängig von einer Betätigung eines Gaspedals eine Drehbewegung um eine Beschleunigungsachse ausführt und einem Plattenhalter, der relativ zur Betätigungsscheibe verlagerbar ist. An der Betätigungsscheibe ist ein Begrenzungsschalter angeordnet. An dem Plattenhalter ist ein Nocken angeordnet. Abhängig von einer Differenzbewegung zwischen der Betätigungsscheibe und dem Plattenhalter wird eine Verlagerung zwischen dem Begrenzungsschalter und dem Nocken generiert. Wenn die rotatorische Verlagerung des Plattenhalters bezüglich der Betätigungsscheibe bis zu einem vorbestimmten Drehwinkel oder größer ansteigt, wird der Begrenzungsschalter von dem Nocken betätigt und eine Elektrifizierung einer elektromagnetischen Spule wird unterbrochen. Infolgedessen wird ein Verbindungszustand zwischen einer Kupplungsplatte und einem Rotor gelöst.From the JP 04 269337 A For example, a gas governor is known with an actuation disk which, as a function of an actuation of an accelerator pedal, performs a rotational movement about an acceleration axis and a disk holder which is displaceable relative to the actuation disk. On the actuating disk, a limit switch is arranged. On the plate holder, a cam is arranged. Depending on a difference movement between the actuating disk and the disk holder, a displacement between the limit switch and the cam is generated. When the rotational displacement of the disc holder with respect to the actuating disc increases up to a predetermined rotational angle or greater, the limit switch is actuated by the cam and electrification of an electromagnetic coil is interrupted. As a result, a connection state between a clutch plate and a rotor is released.

Aus der EP 0 306 640 A2 ist eine elektrisch ansteuerbare Stellvorrichtung bekannt zum Verstellen der Drosselklappe einer Brenngemisch- bzw. Luftdrosseleinrichtung von Brennkraftmaschinen mit einem vom Fahrpedal über einen Pedalwertgeber bzw. Sollwertpotentiometer angesteuerten Elektromotor, der über ein nachgeschaltetes Untersetzungsgetriebe und eine elektromagnetische Kupplung mit der Drosselklappenwelle kuppelbar ist und die Drosselklappe gegen die Kraft einer Rückstellfeder betätigt, wobei ein mit dem Fahrpedal mechanisch gekoppelter Betätigungshebel drehbar koaxial zur Drosselklappenwelle angeordnet ist und bei getrennter elektromagnetischer Kupplung mit einem unverdrehbar, aber axial verschiebbar auf der Drosselklappenwelle angeordneten Kuppelelement der elektromagnetischen Kupplung über Kuppeleinrichtungen - Ansätze und Ausnehmungen - verbunden ist.From the EP 0 306 640 A2 is an electrically controllable adjusting device for adjusting the throttle of a Brenngemisch- or air throttle device of internal combustion engines with a driven by the accelerator pedal via a pedal or setpoint potentiometer electric motor, which is coupled via a downstream reduction gear and an electromagnetic clutch with the throttle shaft and the throttle valve actuated against the force of a return spring, wherein a mechanically coupled to the accelerator pedal actuating lever is rotatably disposed coaxially with the throttle shaft and a separate electromagnetic clutch with a non-rotatable, but axially displaceable on the throttle shaft arranged coupling element of the electromagnetic clutch via coupling devices - lugs and recesses - connected is.

Aufgabe der Erfindung ist es daher, bei einer eingangs genannten Einrichtung zur Betätigung einer Leistungssteuerungseinrichtung einer Brennkraftmaschine die Sicherheit zu erhöhen und insbesondere eine unbeabsichtigt hohe Motorleistung aufgrund einer vom Fahrer nicht gewollten Ansteuerung des Leistungssteuerorgans zu verhindern.The object of the invention is therefore to increase safety in an aforementioned device for actuating a power control device of an internal combustion engine and in particular to prevent inadvertently high engine power due to a driver not wanted by the driver control of the power control element.

Die Lösung dieser Aufgabe erfolgt mit einer Einrichtung mit den Merkmalen des Anspruchs 1 sowie einem Verfahren mit den Merkmalen des Anspruchs 6. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung sind Gegenstand der Unteransprüche.The solution of this object is achieved with a device having the features of claim 1 and a method having the features of claim 6. Advantageous embodiments and modifications of the invention are the subject of the dependent claims.

Der Erfindung liegt die Idee zugrunde, dass die Stelleinrichtung mit der Leistungssteuerungseinrichtung mittels einer ein Eingangs- und ein Ausgangsteil aufweisenden Kupplung verbunden ist, deren Eingangsteil der Stelleinrichtung und deren Ausgangsteil der Leistungssteuerungseinrichtung zugeordnet ist und die Kupplung eine Reibungskupplung ist, wobei die die Kupplung steuernden Parameter der Kupplung für die Betätigung der Leistungssteuerungseinrichtung bestimmend ist und zur mechanischen Verbindung der Eingabeeinrichtung mit der Leistungssteuerungseinrichtung die Eingabeeinrichtung mit dem Ausgangsteil der Kupplung kraftübertragend verbindbar ist, wobei eine Entkoppelung der Stelleinrichtung von der Leistungssteuerungseinrichtung abhängig vom Reibwert der Reibungskupplung bei Überschreiten einer vorgegebenen Kraft zwischen Eingangs- und Ausgangsteil der Reibungskupplung erfolgt. Damit ist es möglich, die Stelleinrichtung von der Leistungssteuerungseinrichtung zu entkoppeln, so dass die Stellung der Stelleinrichtung nicht mehr für die Stellung der Leistungssteuerungseinrichtung maßgeblich ist.The invention is based on the idea that the adjusting device is connected to the power control device by means of a coupling having an input and an output part whose input part is assigned to the adjusting device and whose output part is the power control device and the clutch is a friction clutch, wherein the parameters controlling the clutch the clutch for the actuation of the power control device is determining and for the mechanical connection of the input device with the power control device, the input device with the output part of the clutch is force-transmitting connectable, wherein a decoupling of the actuator of the power control device depending on the coefficient of friction of the friction clutch when exceeding a predetermined force between Input and output part of the friction clutch takes place. This makes it possible to decouple the actuating device from the power control device, so that the position of the actuating device is no longer relevant to the position of the power control device.

Vorzugsweise ist bei einem Abweichen des mittels der Eingabeeinrichtung fahrerseitig eingegebenen reduzierten Leistungswunsches von der mittels der Stelleinrichtung eingestellten Stellung der Leistungssteuerungseinrichtung um mindestens einen vorgegebenen Betrag oder bei einer fahrerseitigen Eingabe eines reduzierten Leistungswunsches mittels der Eingabeeinrichtung mit einem einen vorgegebenen Gradienten übersteigenden Gradienten in Schließrichtung der Leistungssteuerungseinrichtung eine mechanische Verbindung zwischen Eingabeeinrichtung und Leistungssteuerungseinrichtung wirksam. Dadurch wird der mittels der Eingabeeinrichtung mechanisch fahrerseitig eingegebene Leistungswunsch der auf Sensorsignalen basierenden Stellung der Stelleinrichtung vorgezogen und so die Sicherheit erhöht.Preferably, in the case of a deviation of the reduced desired power input by means of the input device from the setting of the power control device by at least a predetermined amount or by a driver input of a reduced power request by the input device with a gradient exceeding a predetermined gradient in the closing direction of the power control device mechanical connection between input device and power control device is effective. As a result, the desired power input by means of the input device on the driver side is preferred to the position of the actuating device based on sensor signals, thus increasing safety.

Mittels der Kupplung kann wahlweise eine Betätigung der Leistungssteuerungseinrichtung mittels der Eingabeeinrichtung oder der Stelleinrichtung erfolgen, wobei die die Kupplung steuernden Parameter für die Betätigung der Leistungssteuerungseinrichtung bestimmend sind.By means of the clutch, optionally, an actuation of the power control device by means of the input device or the adjusting device take place, wherein the clutch controlling parameters for the actuation of the power control device are determining.

Von Vorteil ist es, wenn das Ausgangsteil der Kupplung eine mit einer der Eingabeeinrichtung zugeordneten Kontur korrespondierende Gegenkontur aufweist. Vorzugsweise ist das Ausgangsteil der Kupplung ein einer Welle zugeordnetes erstes Rotationselement mit einem Ausschnitt, der einen Winkelbereich von 60°-110°, insbesondere von ca. 80°-90°, überdeckt, mit dem ein stiftförmiger Fortsatz eines der Eingabeeinrichtung zugeordneten zweiten Rotationselements korrespondiert. Mit dieser Ausführung ist in einem Normalbetrieb eine Betätigung der Leistungssteuerungseinrichtung mittels der Stelleinrichtung unter Berücksichtung des Ausgangssignals der Sensoreinrichtung zur Erfassung der Stellung der Eingabeeinrichtung möglich, während unter Bestimmten Voraussetzungen eine abweichende Betätigung erfolgen kann.It is advantageous if the output part of the coupling has a counter contour corresponding to a contour assigned to the input device. Preferably, the output part of the coupling is a shaft associated with a first rotation element with a cutout, which covers an angular range of 60 ° -110 °, in particular of about 80 ° -90 °, with which a pin-shaped extension of the input device associated second rotary element corresponds , With this embodiment, in a normal operation, an operation of the power control device by means of the adjusting device in consideration of the output signal of the sensor device for detecting the position of the input device possible, while under certain conditions, a different operation can take place.

Zweckmäßigerweise ist beim Öffnen der Leistungssteuerungseinrichtung mittels der Stelleinrichtung die Kupplung bewegungsübertragend und beim vorrangigen Schließen der Leistungssteuerungseinrichtung mittels der Eingabeeinrichtung die Kupplung nicht bewegungsübertragend.Conveniently, when opening the power control device by means of the adjusting device, the clutch movement transmitting and the priority closing of the power control device by means of the input device, the clutch is not movement-transmitting.

Der Erfindung liegt ferner die Idee zugrunde, dass bei einem Verfahren zur Betätigung einer Leistungssteuerungseinrichtung einer Brennkraftmaschine bei einem Abweichen des mittels der Eingabeeinrichtung fahrerseitig eingegebenen Leistungswunsches von dem mittels der Stelleinrichtung eingestellten Position der Leistungssteuerungseinrichtung um mindestens einen vorgegebenen Betrag in Schließrichtung der mittels der Eingabeeinrichtung fahrerseitig eingegebenen Leistungswunsch zur Verstellung der Leistungssteuerungseinrichtung vorrangig herangezogen wird, wobei zur mechanischen Verbindung der Eingabeeinrichtung mit der Leistungssteuerungseinrichtung die Eingabeeinrichtung mit dem Ausgangsteil der Kupplung kraftübertragend verbunden wird und eine Entkoppelung der Stelleinrichtung von der Leistungssteuerungseinrichtung abhängig vom Reibwert der Reibungskupplung bei Überschreiten einer vorgegebenen Kraft zwischen Eingangs- und Ausgangsteil der Reibungskupplung erfolgt.The invention is further based on the idea that in a method for actuating a power control device of an internal combustion engine in a deviation of the input by means of the input device input power desired from the adjusted by means of the actuator position of the power control device by at least a predetermined amount in the closing direction of the driver input by means of the input device Power requirement for adjusting the power control device is primarily used, wherein the mechanical connection of the input device with the power control device, the input device is force-transmittingly connected to the output part of the clutch and decoupling the actuator of the power control device depending on the coefficient of friction of the friction clutch when a predetermined force between input and Output part of the friction clutch takes place.

Gemäß einer besonders bevorzugten Weiterbildung des erfindungsgemäßen Verfahrens wird im Falle einer Bevorzugung des mittels der Eingabeeinrichtung fahrerseitig eingegebenen Leistungswunsches die Stelleinrichtung von der Leistungssteuerungseinrichtung entkoppelt und die Leistungssteuerungseinrichtung mittels der Eingabeeinrichtung unmittelbar betätigt.According to a particularly preferred development of the method according to the invention, in the case of a preference for the desired power input by means of the input device on the driver side, the actuating device is decoupled from the power control device and the Power control device operated directly by means of the input device.

Weitere Vorteile ergeben sich, wenn außerdem bei einer fahrerseitigen Eingabe eines erhöhten Leistungswunsches mittels der Eingabeeinrichtung mit einem einen vorgegebenen Gradienten übersteigenden Gradienten eineFurther advantages result if, in addition, when a driver-side input of an increased power requirement by means of the input device with a predetermined gradient exceeding a gradient

Betätigung der Leistungssteuerungseinrichtung mittels der Stelleinrichtung vom Signal der Eingabeeinrichtung abweichend mit einem begrenzten Gradienten erfolgt. Damit wird eine übermäßig schnelle Betätigung der Leistungssteuerungseinrichtung in Öffnungsrichtung verhindert.Actuation of the power control device takes place by means of the adjusting device from the signal of the input device deviating with a limited gradient. Thus, an excessively fast actuation of the power control device in the opening direction is prevented.

Nachfolgend ist ein besonders zu bevorzugendes Ausführungsbeispiel der Erfindung unter Bezugnahme auf Figuren näher erläutert, dabei zeigen schematisch und beispielhaft

Figur 1
eine Einrichtung zur Betätigung einer Leistungssteuerungseinrichtung einer Brennkraftmaschine mit einer zwischen einer Stelleinrichtung und der Leistungssteuerungseinrichtung angeordneten Kupplung,
Figur 2a
eine Detailansicht der Kupplung mit mechanischer Verbindung zwischen Kupplungsausgangsteil und einer Eingabeeinrichtung im Längsschnitt und
Figur 2b
eine Detailansicht der mechanischen Verbindung zwischen Kupplungsausgangsteil und einer Eingabeeinrichtung im Querschnitt.
Below is a particularly preferred embodiment of the invention with reference to figures explained in more detail, showing schematically and by way of example
FIG. 1
a device for actuating a power control device of an internal combustion engine with a clutch arranged between an actuating device and the power control device,
FIG. 2a
a detailed view of the coupling with mechanical connection between the coupling output part and an input device in longitudinal section and
FIG. 2b
a detailed view of the mechanical connection between the coupling output part and an input device in cross section.

Figur 1 zeigt eine Einrichtung 100 zur Betätigung einer Leistungssteuerungseinrichtung 134 einer hier nicht näher dargestellten Brennkraftmaschine mit einer zwischen einer Stelleinrichtung 122 und der Leistungssteuerungseinrichtung 134 angeordneten Kupplung 138. FIG. 1 shows a device 100 for actuating a power control device 134 of an internal combustion engine, not shown here a clutch 138 disposed between an actuator 122 and the power control device 134.

Im vorliegenden Ausführungsbeispiel dient die Einrichtung 100 zur Betätigung einer Brennkraftmaschine eines Kraftrads und die Leistungssteuerungseinrichtung 134 ist eine Drosselklappe, jedoch kann in einem Ausführungsbeispiel auch eine Brennkraftmaschine eines Kraftfahrzeugs betätigt werden und/oder die Leistungssteuerungseinrichtung 134 ein Kraftstoffzumessventil oder eine Einrichtung zur Hubhöhenveränderung eines Einlassventils einer Brennkraftmaschine sein.In the present embodiment, the device 100 is for operating an internal combustion engine of a motorcycle and the power control device 134 is a throttle valve, however, in one embodiment, an internal combustion engine of a motor vehicle can be actuated and / or the power control device 134 is a Kraftstoffzumessventil or means for Hubhöhenveränderung an intake valve of an internal combustion engine his.

Zur Steigerung der Brennkraftmaschinenleistung ist die Drosselklappe in Öffnungsrichtung und zur Reduzierung der Leistung in Schließrichtung verschwenkbar. Hierzu ist die Drosselklappe drehfest mit einer Drosselklappenwelle 130 verbunden, die entweder mittels einer hier als Elektromotor ausgebildeten Stelleinrichtung 122 oder manuell mittels einer hier als Gasdrehgriff ausgebildeten Eingabeeinrichtung 102 verdrehbar ist.To increase the engine power, the throttle valve is pivotable in the opening direction and to reduce the power in the closing direction. For this purpose, the throttle valve is rotatably connected to a throttle valve shaft 130, which is rotatable either by means of an here designed as an electric motor actuator 122 or manually by means of a here designed as a throttle grip input device 102.

In einem normalen Fahrbetrieb gibt der Fahrer mittels der Eingabeeinrichtung 102 einen Leistungswunsch ein, indem er den Gasdrehgriff entsprechend verdreht. Mit dem Gasdrehgriff ist drehfest eine erste Seilscheibe 104 verbunden, die über einen Seilzug 106 eine zweite Seilscheibe 108 betätigt. Die zweite Seilscheibe 108 ist mit einer Welle 110 drehfest verbunden, so dass bei einer Betätigung des Gasdrehgriffs die Welle 110 verdreht wird. Die Verdrehung oder die Drehstellung der Welle 110 ist mittels eines Sensors 112 detektierbar, der mit einer Leitung 114 signalleitend mit einer Steuereinrichtung 118 verbunden ist. Mittels eines weiteren Sensors 128 ist die Verdrehung oder die Drehstellung der Drosselklappenwelle 130 detektierbar, der mit einer Leitung 126 signalleitend mit der Steuereinrichtung 118 verbunden ist. Basierend auf den Signalen der Sensoren 112, 128 und gegebenenfalls weiterer Signale und/oder gespeicherter Informationen gibt die Steuereinrichtung 118 über eine Leitung 120 ein dem Leistungswunsch des Fahrers entsprechendes Steuersignal an die Stelleinrichtung 122 aus, die - vorliegend mittels eines Getriebes 124 mit einem Eingangsteil der Kupplung 138 verbunden - mit der Drosselklappenwelle 130 in Drehantriebsverbindung steht. Sowohl die Welle 110 als auch die Drosselklappenwelle 130 sind mittels sich gehäuseseitig abstützenden Federn 116, 132 in Drosselklappenschließrichtung beaufschlagt.In a normal driving operation, the driver inputs a power by means of the input device 102 by correspondingly rotating the throttle grip. With the throttle grip a first pulley 104 is rotatably connected, which operates via a cable 106, a second pulley 108. The second pulley 108 is rotatably connected to a shaft 110, so that upon actuation of the throttle grip the shaft 110 is rotated. The rotation or the rotational position of the shaft 110 can be detected by means of a sensor 112, which is connected in a signal-conducting manner to a control device 118 by a line 114. By means of a further sensor 128, the rotation or the rotational position of the throttle valve shaft 130 can be detected, which is connected to the control device 118 in a signal-conducting manner with a line 126. Based on the signals of the sensors 112, 128 and optionally further signals and / or stored information, the control device 118 outputs via a line 120 to the performance request of the driver corresponding control signal to the actuator 122, which - in this case connected by means of a gear 124 with an input part of the clutch 138 - is in rotational drive connection with the throttle shaft 130. Both the shaft 110 and the throttle shaft 130 are acted upon by springs 116, 132 which are supported on the housing side in the throttle valve closing direction.

Eine Detailansicht der Kupplung 138 mit mechanischer Verbindung zwischen Kupplungsausgangsteil 244 und der Eingabeeinrichtung 102 ist im Längsschnitt in Figur 2a und im Querschnitt in Figur 2b dargestellt. Zusätzlich oder alternativ ist damit neben einer Betätigung mittels der Stelleinrichtung 122 eine manuelle Betätigung der Leistungssteuerungseinrichtung 134 mittels der Eingabeeinrichtung 102 möglich.A detailed view of the coupling 138 with mechanical connection between the coupling output part 244 and the input device 102 is shown in longitudinal section in FIG FIG. 2a and in cross section in FIG. 2b shown. Additionally or alternatively, in addition to an actuation by means of the adjusting device 122, a manual actuation of the power control device 134 by means of the input device 102 is possible.

Die Vorliegende Anordnung stellt eine Sicherheitseinrichtung dar, welche bei einem Abweichen des mittels der Eingabeeinrichtung 102 (Gasdrehgriff) fahrerseitig eingegebenen reduzierten Leistungswunsches von der mittels der Stelleinrichtung 122 (Elektromotor) eingestellten Stellung der Leistungssteuerungseinrichtung 134 (Drosselklappe) um mindestens einen vorgegebenen Betrag oder bei einer fahrerseitigen Eingabe eines reduzierten Leistungswunsches mittels der Eingabeeinrichtung 102 mit einem einen vorgegebenen Gradienten übersteigenden Gradienten eine bevorzugte Berücksichtigung des mittels der Eingabeeinrichtung 102 (Gasdrehgriff) fahrerseitig eingegebenen reduzierten Leistungswunsches gewährleistet.The present arrangement represents a safety device, which in a deviation of the input by means of the input device 102 (throttle grip) driver input side reduced power desired from the setting means of the adjusting device 122 (electric motor) position of the power control device 134 (throttle) by at least a predetermined amount or at the driver side Entering a reduced power desired by means of the input device 102 with a gradient exceeding a predetermined gradient, a preferred consideration of the means of the input device 102 (throttle grip) driver input side reduced power desired guaranteed.

Die zweite Seilscheibe 108 und das Eingangsteil 244 der Kupplung 138 sind in axialer Richtung benachbart jeweils um zumindest annähernd fluchtende Achsen drehbar angeordnet. Die zweite Seilscheibe 108 weist einen stiftförmigen Fortsatz 246 auf, der in einen Ausschnitt 248 des Kupplungsausgangsteils 244 eingreift. Indem bei einem normalen Fahrbetrieb der stiftförmige Fortsatz 246 ohne Anlage an einer der den Ausschnitt 248 begrenzenden Seiten positioniert ist, kann eine Betätigung der Leistungssteuerungseinrichtung 134 mittels der Stelleinrichtung 122 erfolgen. Hierzu ist die Stelleinrichtung 122 mittel- oder unmittelbar mit dem Eingangsteil 242 der Kupplung 138 verbunden. Vorliegend ist das letzte Element des zwischen Stelleinrichtung 122 und Leistungssteuerungseinrichtung 134 angeordneten Getriebes, das Zahnrad 240, drehfest mit dem Eingangsteil 242 der Kupplung 138 verbunden.The second pulley 108 and the input part 244 of the clutch 138 are arranged in the axial direction adjacent to at least approximately aligned axes rotatable. The second pulley 108 has a pin-shaped extension 246 which engages in a cutout 248 of the coupling output part 244. By positioning the pin-shaped extension 246 without bearing on one of the sides delimiting the cutout 248 in a normal driving operation, an actuation of the power control device 134 can take place by means of the adjusting device 122. For this purpose, the adjusting device 122 is medium or directly connected to the input part 242 of the clutch 138. In the present case, the last element of the transmission between the adjusting device 122 and the power control device 134, the gearwheel 240, is connected in a rotationally fixed manner to the input part 242 of the clutch 138.

Bei einem Abweichen des mittels der Eingabeeinrichtung 102 (Gasdrehgriff) fahrerseitig eingegebenen reduzierten Leistungswunsches von der mittels der Stelleinrichtung 122 (Elektromotor) eingestellten Stellung der Leistungssteuerungseinrichtung 134 (Drosselklappe) um mindestens einen vorgegebenen Betrag oder bei einer fahrerseitigen Eingabe eines reduzierten Leistungswunsches mittels der Eingabeeinrichtung 102 mit einem einen vorgegebenen Gradienten übersteigenden Gradienten kommt der stiftförmige Fortsatz 246 an einer der den Ausschnitt 248 begrenzenden Seiten zur Anlage, so dass die Eingabeeinrichtung 102 unmittelbar und formschlüssig kraftübertragend mit dem Ausgangsteil 244 der Kupplung 138 verbunden wird.In the case of a deviation of the reduced desired power input by the input device 102 (throttle grip) from the position of the power control device 134 (throttle valve) set by the adjusting device 122 (electric motor) by at least a predetermined amount or by a driver input of a reduced power request by means of the input device 102 a gradient exceeding a predetermined gradient of the pin-shaped extension 246 comes on one of the cutout 248 bounding sides to the plant, so that the input device 102 is directly and positively connected force-transmitting with the output part 244 of the clutch 138.

Indem diese formschlüssig übertragene Kraft die Reibkraft zwischen Eingangs- 242 und Ausgangsteil 244 der Kupplung 138, die auch abhängig ist von und einstellbar ist mittels einer Druckfeder 136, 236, übersteigt, rutscht die Kupplung 138 durch, wobei eine Differenzbewegung zwischen Eingangs- 242 und Ausgangsteil 244 der Kupplung 138 erfolgt.By this positively transmitted force, the frictional force between the input 242 and output part 244 of the clutch 138, which is also dependent on and adjustable by means of a compression spring 136, 236 exceeds, slips through the clutch 138, wherein a differential movement between input 242 and output part 244 of the clutch 138 takes place.

Claims (8)

  1. A device (100) for actuating a power control device (134) of an internal combustion engine, comprising
    - an input device (102) which can be actuated by the driver for driver-side inputting of a desired power,
    - a sensor device (112) for detecting the position of the input device (102) and generating a corresponding output signal,
    - an actuating device (122) for adjusting the power control device (134), taking into account the output signal of the sensor device (112),
    wherein the power control device (134) can be actuated by means of the actuating device (122) in a deviation from the signal of the input device (102),
    wherein the actuating device (122) is connected to the power control device (134) by means of a coupling (138) having an input part and an output part (242, 244), the input part (242) of which coupling is associated with the actuating device (122) and the output part (244) of which coupling is associated with the power control device (134), wherein the coupling (138) is a friction clutch, wherein the parameters controlling the coupling (138) determine the actuation of the power control device (134), and for mechanical connection of the input device (102) to the power control device (134) the input device (102) can be connected in force-transmitting manner to the output part (244) of the coupling (138), wherein uncoupling of the actuating device from the power control device takes place dependent on the friction coefficient of the friction clutch upon exceeding a specified force between the input part and output part of the friction clutch.
  2. A device according to Claim 1, characterised by a mechanical connection between the input device (102) and power control device (134) which
    - in the event of a deviation of the reduced desired power which is input on the driver side by means of the input device (102) from the position of the power control device (134) which is set by means of the actuating device (122) by at least a specified amount, or
    - in the event of a reduced desired power being input on the driver side by means of the input device (102) with a gradient exceeding a specified gradient,
    is effective in the closing direction of the power control device (134).
  3. A device according to one of Claims 1 - 2, characterised in that the output part (244) of the coupling (138) has a mating contour which corresponds to a contour associated with the input device (102).
  4. A device according to one of Claims 1 - 3, characterised in that the output part (244) of the coupling (138) is a first rotation element (244), associated with a shaft (130, 230), with a cutout (248) which covers an angular range of 60° - 110°, especially of approx. 80° - 90°, with which a pin-shaped projection (246) of a second rotation element (108) associated with the input device (102) corresponds.
  5. A device according to one of Claims 1 - 4, characterised in that upon opening the power control device (134) by means of the actuating device (122) the coupling (138, 242, 244) is movement-transmitting and upon the primary closing of the power control device (134) by means of the input device (102) the coupling (138, 242, 244) is not movement-transmitting.
  6. A method for actuating a power control device (134) of an internal combustion engine, comprising
    - an input device (102) which can be actuated by the driver for driver-side inputting of a desired power,
    - a sensor device (112) for detecting the position of the input device (102) and generating a corresponding output signal,
    - an actuating device (122) for adjusting the power control device (134), taking into account the output signal of the sensor device (112),
    - a coupling (138) having an input part and an output part (242, 244) for connecting the actuating device (122) to the power control device (134), the input part (242) of which coupling is associated with the actuating device (122) and the output part (244) of which coupling is associated with the power control device (134),
    wherein the coupling (138) is a friction clutch, wherein the parameters controlling the coupling (138) determine the actuation of the power control device (134),
    wherein the actuating device (122) can actuate the power control device (134) in a deviation from the signal of the input device (102), wherein in the event of a deviation of the desired power which is input on the driver side by means of the input device (102) from the position of the power control device (134) which is set by means of the actuating device (122) by at least a specified amount in the closing direction the desired power which is input on the driver side by means of the input device (102) is used primarily for adjusting the power control device (134), wherein for mechanical connection of the input device (102) to the power control device (134) the input device (102) is connected in force-transmitting manner to the output part (244) of the coupling (138) and uncoupling of the actuating device (122) from the power control device (134) takes place dependent on the friction coefficient of the friction clutch (138) upon exceeding a specified force between the input part and output part of the friction clutch (138).
  7. A method according to Claim 6, characterised in that in the case of preference being given to the desired power which is input on the driver side by means of the input device (102), the actuating device (122) is uncoupled from the power control device (134) and the power control device (134) is actuated directly by means of the input device (102).
  8. A method according to one of Claims 6 - 7, characterised in that in the event of an increased desired power being input on the driver side by means of the input device (102) with a gradient exceeding a specified gradient, actuation of the power control device (134) by means of the actuating device (122) in a deviation from the signal of the input device (102) with a limited gradient takes place.
EP07765040.6A 2006-08-04 2007-07-04 Device and method for actuating a power control device of an internal combustion engine Active EP2047087B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006036427.9A DE102006036427B4 (en) 2006-08-04 2006-08-04 Device and method for actuating a power control device of an internal combustion engine
PCT/EP2007/005903 WO2008014865A1 (en) 2006-08-04 2007-07-04 Device and method for actuating a power control device of an internal combustion engine

Publications (2)

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EP2047087A1 EP2047087A1 (en) 2009-04-15
EP2047087B1 true EP2047087B1 (en) 2019-02-27

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DE (1) DE102006036427B4 (en)
ES (1) ES2714572T3 (en)
WO (1) WO2008014865A1 (en)

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Publication number Publication date
DE102006036427B4 (en) 2020-09-24
EP2047087A1 (en) 2009-04-15
DE102006036427A1 (en) 2008-02-07
WO2008014865A1 (en) 2008-02-07
ES2714572T3 (en) 2019-05-29

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