WO2005073824A1 - Accelerator pedal module and full load indicator for said accelerator pedal module - Google Patents

Accelerator pedal module and full load indicator for said accelerator pedal module Download PDF

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Publication number
WO2005073824A1
WO2005073824A1 PCT/EP2005/000626 EP2005000626W WO2005073824A1 WO 2005073824 A1 WO2005073824 A1 WO 2005073824A1 EP 2005000626 W EP2005000626 W EP 2005000626W WO 2005073824 A1 WO2005073824 A1 WO 2005073824A1
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WO
WIPO (PCT)
Prior art keywords
load indicator
accelerator pedal
full
full load
pedal module
Prior art date
Application number
PCT/EP2005/000626
Other languages
German (de)
French (fr)
Inventor
Tan-Phat La
Dieter Papenhagen
Original Assignee
Daimlerchrysler Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daimlerchrysler Ag filed Critical Daimlerchrysler Ag
Priority to JP2006550062A priority Critical patent/JP2007522986A/en
Priority to US10/587,571 priority patent/US20070289402A1/en
Publication of WO2005073824A1 publication Critical patent/WO2005073824A1/en

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/30—Controlling members actuated by foot
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K26/00—Arrangements or mounting of propulsion unit control devices in vehicles
    • B60K26/02—Arrangements or mounting of propulsion unit control devices in vehicles of initiating means or elements
    • B60K26/021—Arrangements or mounting of propulsion unit control devices in vehicles of initiating means or elements with means for providing feel, e.g. by changing pedal force characteristics
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/30—Controlling members actuated by foot
    • G05G1/44—Controlling members actuated by foot pivoting
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/03—Means for enhancing the operator's awareness of arrival of the controlling member at a command or datum position; Providing feel, e.g. means for creating a counterforce

Definitions

  • the invention relates to an accelerator pedal module and an accelerator pedal module full load indicator according to the preambles of the independent claims.
  • a full-load indicator for example a so-called kickdown notch
  • a full-load indicator for example a so-called kickdown notch
  • an electrical signal is generated for the kickdown notch, which is communicated to the driver as a noticeable, abruptly increasing resistance as soon as this pedal travel is completed.
  • a magnetic kickdown catch with return spring and magnet arrangement is an additional component of an accelerator pedal module below the pedal.
  • Such full load indicators are usually complex and a considerable cost factor.
  • Such a kickdown catch is known for example from DE 102 12 904 AI.
  • the invention is based, an accelerator pedal module with the task. to provide a simplified and inexpensive full-load indicator which, when the pedal is in a full-load position, opposes further actuation of the pedal to a noticeably increased resistance. Furthermore, an accelerator pedal module full load indicator should be given.
  • the object is achieved by the features of the independent claims. Favorable configurations and advantages of the invention can be found in the description and the further claims.
  • the reset device can be locked in the full load position of the pedal with a full load indicator. This enables the full-load indicator to be integrated into the module, so that no separate element outside a housing of the accelerator pedal module is necessary. Furthermore, the arrangement saves space and can be carried out with a weight advantage.
  • the full-load indicator is designed in the form of a band with a curved contour, the driver can be provided with a very simple design with a reliable, tangible display of the full load with the corresponding pedal position.
  • An abruptly increased resistance can be opposed to the pedal movement if the full-load indicator has a step toward its center of curvature on its concave inner surface towards its free end. Without interacting with the full-load indicator, the pedal can cover a pedal travel from an idling position to a position with high power requirements on a drive motor until a corresponding interaction element, preferably a driver of the reset device, can hit the stage of the full-load indicator. If the pedal is moved further in the same direction of increasing power demand, the full load indicator with its area beyond the step makes it difficult to move the pedal. The driver feels an abruptly increasing resistance, which he calls, for example Perceives the operator's power jump and indicates that he is at full throttle.
  • the full-load indicator is integrated in a housing together with the reset device, a compact, easy-to-install module can be created. There is no need to install a separate kickdown catch. This saves costs and weight.
  • the resetting device with a pivotably movable driver lies at least near the full-load position on the full-load indicator, a very simple and reliable device can be created by latching the driver with the full-load indicator, with which further pedal movement is opposed to resistance. At the same time, the reset device ensures that the pedal can release itself from contact with the full-load indicator when the load on the driver's foot decreases.
  • the contour of the full-load indicator is preferably adapted to a movement curve of the driver.
  • the full-load indicator is made of plastic.
  • the full-load indicator is particularly preferably designed as a spring plate. This enables a particularly simple geometry and adaptation to both the housing contour and the pivoting movement of the driver.
  • the full-load indicator can optionally be designed as a roller with a compression spring or as a so-called claw with a spring.
  • the accelerator pedal module full load indicator according to the invention for generating a tactile mechanical resistance in a full load position of a pedal has a band-shaped base body with a curvature along its longitudinal extent.
  • a step is preferably arranged at an end which is free in the assembled state in such a way that the end is thickened. It is beneficial if the curvature of the full load indicator increases from the free end.
  • FIG. 2 shows a force-displacement diagram of a pedal with a known kickdown notch in comparison to a preferred integrated full-load indicator
  • FIG. 3 a-d views of an accelerator pedal module with a kickdown notch according to the prior art obliquely from above (a), in neutral position (b), when reaching full load position (c) and in kickdown position,
  • Fig. 4 ac views of a preferred accelerator pedal module when idling (a), when the full load position (b) is reached and when the full load indicator (c) is activated.
  • the same parts are basically numbered with the same reference numerals.
  • a preferred accelerator pedal module full load indicator 11 is shown in Figure 1 a, b.
  • the oblique view in FIG. 1 a shows a band-shaped base body with a curvature along its longitudinal extent, with a first end 12 for storing the accelerator pedal module full-load indicator 11 in an accelerator pedal module and ⁇ a second end 13, which, when installed, freely in one not shown housing of the accelerator pedal module protrudes.
  • the broad side of the base body has a concavely curved inner surface 15 and a correspondingly convexly curved outer surface.
  • the full-load indicator 11 is preferably designed as a spring element. Starting from the first end 12, the curvature of the base body of the full-load indicator 11 increases towards the free end 13.
  • FIG. 1 b shows a longitudinal section through the preferred full-load indicator 11.
  • a step 19 is formed near the free end 13 in such a way that it forms an increase on the concave curved surface 15 and the full-load indicator 11 at its free end 13 is thickened.
  • the curvature of the full-load indicator 11 increases towards its free end 13. If an interaction element extending in the radial direction, which is arranged approximately coaxially to the full-load indicator 11, performs a rotational movement, for example, the outer surface thereof moves past the full-load indicator 11 until it reaches level 19 Full load indicator 11 comes into contact.
  • a tangible mechanical resistance can be generated by contact with the thickened free end 13 at a full load position of a pedal, not shown, which increases linearly, for example, with a further movement of the pedal.
  • the length of the full-load indicator 11 is expediently chosen such that the stage 19 is reached by the interaction element, preferably a driver of a reset device, not shown, when the pedal has reached the full-load position.
  • a conventional kickdown notch shows a very steep increase in resistance, which is characterized by the force F to be exerted by the driver over the pedal travel L and is shown in the solid curve A.
  • the force increases linearly with a slight slope.
  • the solid, lower curve B represents a hysteresis of the force over the pedal travel L, which can typically be observed on the return travel of the pedal with a known magnetic kickdown catch.
  • the preferred full-load indicator 11 designed as a spring element shows a linear increase with a large but finite gradient when the full-load position is reached, as can be seen from the dashed curve.
  • FIG. 3 ad shows a known accelerator pedal module 1 with a pedal 2 and a full-load indicator 20 protruding from a housing 14 of the accelerator pedal module 1 and designed as a kickdown catch. Details on any control or any existing pedal travel sensors, connecting lines to a drive machine or the like are not shown.
  • FIG. 3 a shows an oblique view of the accelerator pedal module 1.
  • the pedal 2 is rotatably mounted on a bottom part 5 of the accelerator pedal module 1.
  • a reset device 4 which is designed as a box with a reset spring 10, is arranged within the housing 14 in a cavity 18.
  • the return spring 10 is on the can and on a fastening 17 on Housing 14 set.
  • a driver 6 projects radially outward from the circumference of the resetting device 4.
  • the driver 6 is pivotable in the cavity 18 depending on a pedal position over a certain angular range and is connected to the pedal 2 via a strut 9 which is guided through the housing 14 to the outside. If the pedal 2 is depressed, the driver 6 and thus the return device 4 is rotated downward via the strut 9, and the return spring 10 is elastically tensioned.
  • the driver 6 swings past a tab 16 of the housing 14.
  • Figures 3 bd show a section through the known accelerator pedal module 1 from an idle position to the full load position with activated full load indicator 20 designed as a kickdown catch.
  • the description of the functionality of the individual elements not described here is described in the description of the figure 3 a referenced.
  • the pedal 2 is connected to the driver 6 via a strut 9, the strut 9 being rotatably connected to a bearing 7 with the driver 6 and rotatably to a bearing 8 with the pedal 2.
  • the driver 6 of the reset device 4 is almost perpendicular to the bottom part 5, and the pedal
  • a full-load indicator 20 designed as a kickdown catch is arranged in the upper region of the accelerator pedal module 1. figure
  • 3 c shows the full-load position of the pedal 2.
  • the pedal 2 is depressed to such an extent that the spacer element 3 lies precisely on the full-load indicator 20 designed as a kickdown catch.
  • the driver 6 of the reset device 4 is pivoted below by more than 90 ° and is now close to its lowest position.
  • FIG. 3 d the spacing element 3 has depressed and activated the full-load indicator designed as a kickdown catch 20.
  • the driver 6 is in its lowest position, and the reset the 10 is at most excited. If the pedal 2 is released, the return spring 10 moves it back towards the idle position.
  • FIG. 4 ac shows a preferred accelerator pedal module 1 according to the invention in positions between idle position and full load position with an activated full load indicator 11.
  • FIG. 3 The structure largely corresponds to the known structure as described in FIG. 3.
  • the full-load indicator 11 is now integrated in a housing 14 together with a resetting device 4 and projects into a cavity 18 in the housing 14.
  • the full-load indicator 11 is between a tab 16 which is at a short distance approximately parallel to an inner wall of the housing Cavity 18 extends, and the inner wall of the housing 14 is arranged, the tab 16 covering more than half of the full load indicator 11.
  • a first end 12 of the full-load indicator 11 is connected to the housing 14, while a second end 13 projects freely into the cavity 18.
  • the full-load indicator 11 is designed as a curved, band-shaped spring element, the curvature of which increases from the first end 12 to the free end 13.
  • the resetting device 4 is formed from a can, around which a return spring 10 is wound, which is fastened to the can at a first end and to a fastening 17 of the housing 14 at a second end.
  • the pedal 2 is connected to the driver 6 via a strut 9. The driver 6 is pivotable in the cavity 18 depending on the pedal position.
  • FIG. 4 b shows an accelerator pedal module 1 in a full load position, in which the pedal 2 is depressed to such an extent that the driver 6 has reached a step 19 of the full load indicator 11 designed as a spring element.
  • the driver 6 is in the full load position on the full load indicator 11 or on the stage 19.
  • FIG. 4 c shows how the full-load indicator 11 is locked with the reset device 4 in the full-load position of the pedal 2.
  • the driver 6 moves only minimally downwards, since the pedal 2 with its spacer element 3 is almost in contact with the housing 14, and comes into intimate contact with the thickened free end 13 of the full-load indicator 11. A slight further movement of the pedal 2 downwards there is a high resistance, which is communicated to the driver as a sudden increase in operating force. If the pedal 2 is relieved, the tension force of the return spring 10 is sufficient to release the driver 6 from the latching with the free end 13 of the full-load indicator 11 and to move it towards the neutral position.

Abstract

The invention relates to an accelerator pedal module comprising a pedal (2) and a restoring device (4) for the pedal (2) and a full load indicator (20, 11). The restoring device (4), in the full load position of the pedal (2), can be locked with the full load indicator (11). The invention also relates to a full load indicator for an accelerator pedal module.

Description

Fahrpedalmodul und Fahrpedalmodul-Volllast-Indikator Accelerator pedal module and accelerator pedal module full load indicator
Die Erfindung betrifft ein Fahrpedalmodul und einen Fahrpe- dalmodul-Volllast-Indikator nach den Oberbegriffen der unabhängigen Ansprüche .The invention relates to an accelerator pedal module and an accelerator pedal module full load indicator according to the preambles of the independent claims.
Es ist bekannt, Fahrpedalmodule mit einem Volllast-Indikator auszustatten. Ein solcher Volllast-Indikator, beispielsweise eine so genannte Kickdown-Raste, ist für die zuverlässige Funktion eines Automatikgetriebes in Kombination mit einem Tempomaten und/oder einer Geschwindigkeitsbegrenzungs- Vorrichtung notwendig. So wird ab einem bestimmten Pedalweg ein elektrisches Signal für die Kickdown-Raste erzeugt, das sich dem Fahrer als fühlbarer, abrupt zunehmender Widerstand mitteilt, sobald dieser Pedalweg zurückgelegt ist. So ist bekannt, eine magnetische Kickdown-Raste mit Rückstellfeder und Magnetanordnung als zusätzliche Komponente eines Fahrpedalmoduls unterhalb des Pedals anzuordnen. Derartige Volllast- Indikatoren sind in der Regel aufwändig und ein beträchtlicher Kostenfaktor. Eine solche Kickdown-Raste ist beispielsweise aus der DE 102 12 904 AI bekannt.It is known to equip accelerator pedal modules with a full load indicator. Such a full-load indicator, for example a so-called kickdown notch, is necessary for the reliable functioning of an automatic transmission in combination with a cruise control and / or a speed limiting device. From a certain pedal travel, an electrical signal is generated for the kickdown notch, which is communicated to the driver as a noticeable, abruptly increasing resistance as soon as this pedal travel is completed. It is known to arrange a magnetic kickdown catch with return spring and magnet arrangement as an additional component of an accelerator pedal module below the pedal. Such full load indicators are usually complex and a considerable cost factor. Such a kickdown catch is known for example from DE 102 12 904 AI.
Der Erfindung liegt die Aufgabe zugrunde, ein Fahrpedalmodul mit einem . vereinfachten und kostengünstigen Volllast- Indikator anzugeben, der bei einer Volllast-Position des Pedals einer weiteren Betätigung des Pedals einen fühlbaren erhöhten Widerstand entgegensetzt. Weiterhin soll ein Fahrpe- dalmodul-Volllast-Indikator dazu angegeben werden. Die Aufgabe wird erfindungsgemäß durch die Merkmale den unabhängigen Ansprüche gelöst. Günstige Ausgestaltungen und Vorteile der Erfindung sind der Beschreibung sowie den weiteren Ansprüchen zu entnehmen.The invention is based, an accelerator pedal module with the task. to provide a simplified and inexpensive full-load indicator which, when the pedal is in a full-load position, opposes further actuation of the pedal to a noticeably increased resistance. Furthermore, an accelerator pedal module full load indicator should be given. The object is achieved by the features of the independent claims. Favorable configurations and advantages of the invention can be found in the description and the further claims.
Bei einem erfindungsgemäßen Fahrpedalmodul mit einem Pedal und einer Rückstelleinrichtung für das Pedal ist die Rückstelleinrichtung in Volllast-Position des Pedals mit einem Volllast-Indikator verrastbar. Dies ermöglicht die Integration des Volllast-Indikators in das Modul, so dass keine separates Element außerhalb eines Gehäuses des Fahrpedalmoduls notwendig ist. Ferner ist die Anordnung Platz sparend und lässt sich mit Gewichtsvorteil ausführen.In an accelerator pedal module according to the invention with a pedal and a reset device for the pedal, the reset device can be locked in the full load position of the pedal with a full load indicator. This enables the full-load indicator to be integrated into the module, so that no separate element outside a housing of the accelerator pedal module is necessary. Furthermore, the arrangement saves space and can be carried out with a weight advantage.
Ist der Volllast-Indikator bandförmig mit gekrümmter Kontur ausgebildet, kann für den Fahrer mit einer sehr einfachen Ausgestaltung eine zuverlässige, fühlbar wahrnehmbare Anzeige der Volllast bei entsprechender Pedalstellung erfolgen.If the full-load indicator is designed in the form of a band with a curved contour, the driver can be provided with a very simple design with a reliable, tangible display of the full load with the corresponding pedal position.
Ein abrupt erhöhter Widerstand kann der Pedalbewegung entgegengesetzt werden, wenn der Volllast-Indikator zu seinem freien Ende hin auf seiner konkaven Innenfläche eine Stufe zu einem Krümmungsmittelpunkt hin aufweist . Das Pedal kann ohne Wechselwirkung mit dem Volllast-Indikator einen Pedalweg von einer LeerlaufStellung bis zu einer Stellung mit hoher Leistungsanforderung an einen Antriebsmotor zurücklegen, bis ein entsprechendes Wechselwirkungselement, vorzugsweise ein Mitnehmer der Rückstelleinrichtung, an der Stufe des Volllast- Indikators anstoßen kann. Wird das Pedal weiter in die gleiche Richtung zunehmender Leistungsanforderung bewegt, erschwert der Volllast-Indikator mit seinem Bereich jenseits der Stufe eine Bewegung des Pedals. Der Fahrer spürt einen abrupt zunehmenden Widerstand, den er beispielsweise als Kraftsprung der Bedienkraft des Pedals wahrnimmt und der ihm anzeigt, dass er Vollgas gibt.An abruptly increased resistance can be opposed to the pedal movement if the full-load indicator has a step toward its center of curvature on its concave inner surface towards its free end. Without interacting with the full-load indicator, the pedal can cover a pedal travel from an idling position to a position with high power requirements on a drive motor until a corresponding interaction element, preferably a driver of the reset device, can hit the stage of the full-load indicator. If the pedal is moved further in the same direction of increasing power demand, the full load indicator with its area beyond the step makes it difficult to move the pedal. The driver feels an abruptly increasing resistance, which he calls, for example Perceives the operator's power jump and indicates that he is at full throttle.
Ist der Volllast-Indikator gemeinsam mit der Rückstelleinrichtung in einem Gehäuse integriert, lässt sich ein kompaktes, einfach zu montierendes Modul darstellen. Eine Montage einer separate Kickdown-Raste kann entfallen. Dies erspart Kosten sowie Gewicht .If the full-load indicator is integrated in a housing together with the reset device, a compact, easy-to-install module can be created. There is no need to install a separate kickdown catch. This saves costs and weight.
Liegt die Rückstelleinrichtung mit einem schwenkbar beweglichen Mitnehmer zumindest nahe der Volllast-Position an dem Volllast-Indikator an, kann durch Verrastung des Mitnehmers mit dem Volllast-Indikator eine sehr einfache und zuverlässige Vorrichtung geschaffen werden, mit der einer weiteren Pedalbewegung Widerstand entgegengesetzt wird. Gleichzeitig stellt die Rückstelleinrichtung sicher, dass das Pedal bei nachlassender Belastung durch den Fahrerfuß sich aus dem Kontakt mit dem Volllast-Indikator lösen kann.If the resetting device with a pivotably movable driver lies at least near the full-load position on the full-load indicator, a very simple and reliable device can be created by latching the driver with the full-load indicator, with which further pedal movement is opposed to resistance. At the same time, the reset device ensures that the pedal can release itself from contact with the full-load indicator when the load on the driver's foot decreases.
Vorzugsweise ist der Volllast-Indikator in seiner Kontur an eine Bewegungskurve des Mitnehmers angepasst. Dadurch kann vorhandener Bauraum in dem Gehäuse des Fahrpedalmoduls genutzt werden, ohne das Fahrpedalmodul zu vergrößern.The contour of the full-load indicator is preferably adapted to a movement curve of the driver. As a result, existing installation space in the housing of the accelerator pedal module can be used without enlarging the accelerator pedal module.
Eine besonders kostengünstige und Gewicht sparende Ausgestaltung ist möglich, wenn der Volllast-Indikator aus Kunststoff gebildet ist. Besonders bevorzugt ist der Volllast-Indikator als Federplatte ausgebildet. Dies ermöglicht eine besonders einfache Geometrie und Anpassung sowohl an die Gehäusekontur wie auch an die Schwenkbewegung des Mitnehmers. Optional kann der Volllast-Indikator als Rolle mit Druckfeder oder als so genannten Kraller mit einer Feder ausgebildet sein. Der erfindungsgemäße Fahrpedalmodul-Volllast-Indikator zur Erzeugung eines fühlbaren mechanischen Widerstandes bei einer Volllast-Position eines Pedals weist einen bandförmigen Grundkδrper mit einer Krümmung entlang seiner Längserstreckung auf. Bevorzugt ist an einem im montierten Zustand freien Ende eine Stufe so angeordnet, dass das Ende verdickt ist. Günstig ist, wenn die Krümmung des Volllast-Indikators von zum freien Ende hin zunimmt.A particularly inexpensive and weight-saving design is possible if the full-load indicator is made of plastic. The full-load indicator is particularly preferably designed as a spring plate. This enables a particularly simple geometry and adaptation to both the housing contour and the pivoting movement of the driver. The full-load indicator can optionally be designed as a roller with a compression spring or as a so-called claw with a spring. The accelerator pedal module full load indicator according to the invention for generating a tactile mechanical resistance in a full load position of a pedal has a band-shaped base body with a curvature along its longitudinal extent. A step is preferably arranged at an end which is free in the assembled state in such a way that the end is thickened. It is beneficial if the curvature of the full load indicator increases from the free end.
Im folgenden- wird die Erfindung anhand eines in der Zeichnung beschriebenen Ausführungsbeispiels näher erläutert. Die Zeichnung, die Beschreibung und die Ansprüche enthalten zahlreiche Merkmale in Kombination, die der Fachmann zweckmäßigerweise auch einzeln betrachten und zu sinnvollen weiteren Kombinationen zusammenfassen wird.The invention is explained in more detail below with reference to an exemplary embodiment described in the drawing. The drawing, the description and the claims contain numerous features in combination, which the person skilled in the art will expediently also consider individually and combine into meaningful further combinations.
Dabei zeigen:Show:
Fig. 1 a, b eine schräge Aufsicht (a) auf einen und einen Schnitt (b) durch einen bevorzugten Fahrpedalmodul- Volllast-Indikator,1 a, b an oblique view (a) of one and a section (b) through a preferred accelerator pedal module full load indicator,
Fig. 2 ein Kraft-Weg-Diagramm eines Pedals mit bekannter Kickdown-Raste im Vergleich zu einem bevorzugten integrierten Volllast-Indikator,2 shows a force-displacement diagram of a pedal with a known kickdown notch in comparison to a preferred integrated full-load indicator,
Fig. 3 a-d Ansichten eines Fahrpedalmoduls mit einer Kickdown-Raste nach dem Stand der Technik schräg von oben (a) , in Leerlaufstellung (b) , bei Erreichen der Volllast-Position (c) und in Kickdown-Stellung,3 a-d views of an accelerator pedal module with a kickdown notch according to the prior art obliquely from above (a), in neutral position (b), when reaching full load position (c) and in kickdown position,
Fig. 4 a-c Ansichten eines bevorzugten Fahrpedalmoduls im Leerlauf (a) , bei Erreichen der Volllast-Position (b) und bei Aktivierung des Volllast-Indikators (c) . In den Figuren sind grundsätzlich gleiche Teile mit denselben Bezugszeichen beziffert.Fig. 4 ac views of a preferred accelerator pedal module when idling (a), when the full load position (b) is reached and when the full load indicator (c) is activated. In the figures, the same parts are basically numbered with the same reference numerals.
Ein bevorzugter Fahrpedalmodul-Volllast-Indikator 11 ist in Figur 1 a, b dargestellt. Die schräge Aufsicht in Figur 1 a zeigt einen bandförmigen Grundkörper mit einer Krümmung entlang seiner Längserstreckung, mit einem ersten Ende 12 zur Lagerung des Fahrpedalmodul-Volllast-Indikator 11 in einem Fahrpedalmodul dient und ■ einem zweiten Ende 13, welches in eingebautem Zustand frei in ein nicht dargestelltes Gehäuse des Fahrpedalmoduls ragt. Die Breitseite des Grundkörpers weist eine konkav gekrümmte innere Fläche 15 auf und eine entsprechend konvex gekrümmte Außenfläche. Der Volllast- Indikator 11 ist vorzugsweise als Federelement ausgebildet. Ausgehend vom ersten Ende 12 nimmt die Krümmung des Grundkörpers des Volllast-Indikators 11 zum freien Ende 13 hin zu.A preferred accelerator pedal module full load indicator 11 is shown in Figure 1 a, b. The oblique view in FIG. 1 a shows a band-shaped base body with a curvature along its longitudinal extent, with a first end 12 for storing the accelerator pedal module full-load indicator 11 in an accelerator pedal module and ■ a second end 13, which, when installed, freely in one not shown housing of the accelerator pedal module protrudes. The broad side of the base body has a concavely curved inner surface 15 and a correspondingly convexly curved outer surface. The full-load indicator 11 is preferably designed as a spring element. Starting from the first end 12, the curvature of the base body of the full-load indicator 11 increases towards the free end 13.
Fig. 1 b zeigt einen Längsschnitt durch den bevorzugten Volllast-Indikator 11. Nahe des freien Endes 13 ist eine Stufe 19 ausgebildet, dergestalt, dass diese auf der konkav gekrümmten Fläche 15 eine Erhöhung bildet und der Volllast-Indikator 11 an seinem freien Ende 13 verdickt ist. Die Krümmung des Volllast-Indikators 11 nimmt zu seinem freien Ende 13 hin zu. Führt ein sich in radialer Richtung erstreckendes Wechselwir- kungs-Element, welches in etwa koaxial zu dem Volllast- Indikator 11 angeordnet ist, beispielsweise eine Drehbewegung aus, bewegt sich dessen Außenfläche entlang des Volllast- Indikators 11 vorbei, bis es mit der Stufe 19 des Volllast- Indikators 11 in Kontakt kommt. Dreht das Wechselwirkungselement weiter, so kann durch Kontakt mit dem verdickten freien Ende 13 ein fühlbarer mechanischer Widerstand bei einer Voll- last-Position eines nicht dargestellten Pedals erzeugt werden, der beispielsweise mit einer Weiterbewegung des Pedals linear zunimmt. Dies ist in Figur 2 dargestellt. Die Länge des Volllast-Indikators 11 ist zweckmäßigerweise so gewählt, dass die Stufe 19 genau dann von dem Wechselwirkungs-Element, vorzugsweise einem nicht dargestellten Mitnehmer einer Rückstelleinrichtung, erreicht wird, wenn das Pedal in Volllast- Position angelangt ist.1 b shows a longitudinal section through the preferred full-load indicator 11. A step 19 is formed near the free end 13 in such a way that it forms an increase on the concave curved surface 15 and the full-load indicator 11 at its free end 13 is thickened. The curvature of the full-load indicator 11 increases towards its free end 13. If an interaction element extending in the radial direction, which is arranged approximately coaxially to the full-load indicator 11, performs a rotational movement, for example, the outer surface thereof moves past the full-load indicator 11 until it reaches level 19 Full load indicator 11 comes into contact. If the interaction element rotates further, a tangible mechanical resistance can be generated by contact with the thickened free end 13 at a full load position of a pedal, not shown, which increases linearly, for example, with a further movement of the pedal. This is shown in Figure 2. The length of the full-load indicator 11 is expediently chosen such that the stage 19 is reached by the interaction element, preferably a driver of a reset device, not shown, when the pedal has reached the full-load position.
Eine herkömmliche Kickdown-Raste zeigt einen sehr steilen Anstieg des Widerstands, was durch die vom Fahrer aufzuwendende Kraft F über dem Pedalweg L gekennzeichnet und in der durchgezogenen Kurve A wiedergegeben ist . Zunächst steigt die Kraft mit geringer Steigung linear an. Bei Erreichen der Volllast-Position ist ein steiler, sprungartigen Anstieg zu verzeichnen. Die durchgezogene, untere Kurve B stellt eine Hysterese der Kraft über dem Pedalweg L dar, die typischerweise beim Rückweg des Pedals bei einer bekannten Magnet- Kickdown-Raste zu beobachten ist. Im Gegensatz dazu zeigt der bevorzugte als Federelement ausgebildete Volllast-Indikator 11 bei Erreichen der Volllast-Position einen linearen Anstieg mit großer, aber endlicher Steigung, wie anhand der gestrichelten Kurve zu erkennen ist.A conventional kickdown notch shows a very steep increase in resistance, which is characterized by the force F to be exerted by the driver over the pedal travel L and is shown in the solid curve A. First, the force increases linearly with a slight slope. When the full load position is reached, there is a steep, abrupt rise. The solid, lower curve B represents a hysteresis of the force over the pedal travel L, which can typically be observed on the return travel of the pedal with a known magnetic kickdown catch. In contrast to this, the preferred full-load indicator 11 designed as a spring element shows a linear increase with a large but finite gradient when the full-load position is reached, as can be seen from the dashed curve.
Figur 3 a-d zeigt ein bekanntes Fahrpedalmodul 1 mit einem Pedal 2 und einem aus einem Gehäuse 14 des Fahrpedalmoduls 1 ragenden, als Kickdown-Raste ausgebildeten Volllast-Indikator 20. Details zu einer etwaigen Steuerung oder etwaige vorhandene Pedalwegsensoren, Verbindungsleitungen zu einer Antriebsmaschine oder dergleichen sind nicht dargestellt.FIG. 3 ad shows a known accelerator pedal module 1 with a pedal 2 and a full-load indicator 20 protruding from a housing 14 of the accelerator pedal module 1 and designed as a kickdown catch. Details on any control or any existing pedal travel sensors, connecting lines to a drive machine or the like are not shown.
Figur 3 a zeigt eine schräge Aufsicht auf das Fahrpedalmodul 1. Das Pedal 2 ist auf einem Bodenteil 5 des Fahrpedalmoduls 1 drehbar gelagert . Innerhalb des Gehäuses 14 ist in einem Hohlraum 18 eine Rückstelleinrichtung 4 angeordnet, die als Dose mit einer Rückstellfeder 10 ausgebildet ist. Die Rückstellfeder 10 ist an der Dose und an einer Befestigung 17 am Gehäuse 14 festgelegt. Vom Umfang der Rückstelleinrichtung 4 aus ragt ein Mitnehmer 6 radial nach außen. Der Mitnehmer 6 ist in dem Hohlraum 18 abhängig von einer Pedalstellung über einen bestimmten Winkelbereich schwenkbar und über eine Strebe 9 , die durch das Gehäuse 14 nach außen geführt ist, mit dem Pedal 2 verbunden. Wird das Pedal 2 niedergedrückt, wird der Mitnehmer 6 und damit die Rückstelleinrichtung 4 über die Strebe 9 nach unten gedreht, und die Rückstellfeder 10 wird elastisch gespannt. Der Mitnehmer 6 schwenkt dabei an einer Lasche 16 des Gehäuses 14 vorbei.FIG. 3 a shows an oblique view of the accelerator pedal module 1. The pedal 2 is rotatably mounted on a bottom part 5 of the accelerator pedal module 1. A reset device 4, which is designed as a box with a reset spring 10, is arranged within the housing 14 in a cavity 18. The return spring 10 is on the can and on a fastening 17 on Housing 14 set. A driver 6 projects radially outward from the circumference of the resetting device 4. The driver 6 is pivotable in the cavity 18 depending on a pedal position over a certain angular range and is connected to the pedal 2 via a strut 9 which is guided through the housing 14 to the outside. If the pedal 2 is depressed, the driver 6 and thus the return device 4 is rotated downward via the strut 9, and the return spring 10 is elastically tensioned. The driver 6 swings past a tab 16 of the housing 14.
Dre Figuren 3 b-d zeigen einen Schnitt durch das bekannte Fahrpedalmodul 1 von einer LeerlaufStellung bis zur Volllast- Position mit aktiviertem, als Kickdown-Raste ausgebildeten Volllast-Indikator 20. Zur Beschreibung der Funktionalität der einzelnen, hier nicht beschriebenen Elemente wird auf die Beschreibung der Figur 3 a verwiesen. Das Pedal 2 ist über eine Strebe 9 mit dem Mitnehmer 6 verbunden, wobei die Strebe 9 drehbar mit einem Lager 7 mit dem Mitnehmer 6 und drehbar mit einem Lager 8 mit dem Pedal 2 verbunden ist. In der Leerlaufstellung (Figur 3 b) steht der Mitnehmer 6 der Rückstelleinrichtung 4 nahezu senkrecht zum Bodenteil 5, und das PedalFigures 3 bd show a section through the known accelerator pedal module 1 from an idle position to the full load position with activated full load indicator 20 designed as a kickdown catch. The description of the functionality of the individual elements not described here is described in the description of the figure 3 a referenced. The pedal 2 is connected to the driver 6 via a strut 9, the strut 9 being rotatably connected to a bearing 7 with the driver 6 and rotatably to a bearing 8 with the pedal 2. In the idle position (Figure 3 b), the driver 6 of the reset device 4 is almost perpendicular to the bottom part 5, and the pedal
2 befindet sich in seiner steilsten Stellung zum Bodenteil 5. Ein als Kickdown-Raste ausgebildeter Volllast-Indikator 20 ist im oberen Bereich des Fahrpedalmoduls 1 angeordnet. Figur2 is in its steepest position relative to the floor part 5. A full-load indicator 20 designed as a kickdown catch is arranged in the upper region of the accelerator pedal module 1. figure
3 c zeigt die Volllast-Position des Pedals 2. Das Pedal 2 ist soweit niedergedrückt, dass das Abstandselement 3 gerade auf dem als Kickdown-Raste ausgebildeten Volllast-Indikator 20 aufliegt. Der Mitnehmer 6 der Rückstelleinrichtung 4 ist um mehr als 90° unten geschwenkt und befindet sich nunmehr nahe seiner tiefsten Position. In Figur 3 d hat das Abstandselement 3 den als Kickdown-Raste 20 ausgebildeten Volllast- Indikator niedergedrückt und aktiviert. Der Mitnehmer 6 befindet sich in seiner tiefsten Position, und die Rückstellfe- der 10 ist maximal gespannt. Wird das Pedal 2 entlastet, bewegt die Rückstellfeder 10 dieses wieder in Richtung Leerlaufstellung.3 c shows the full-load position of the pedal 2. The pedal 2 is depressed to such an extent that the spacer element 3 lies precisely on the full-load indicator 20 designed as a kickdown catch. The driver 6 of the reset device 4 is pivoted below by more than 90 ° and is now close to its lowest position. In FIG. 3 d, the spacing element 3 has depressed and activated the full-load indicator designed as a kickdown catch 20. The driver 6 is in its lowest position, and the reset the 10 is at most excited. If the pedal 2 is released, the return spring 10 moves it back towards the idle position.
In Figur 4 a-c zeigt ein bevorzugtes Fahrpedalmodul 1 gemäß der Erfindung in Positionen zwischen LeerlaufStellung und Volllast-Position mit einem aktivierten Volllast-Indikator 11. Zur Funktionalität und Bedeutung einzelne nicht beschriebener Elemente wird auf die Beschreibung der Figur 3 verwiesen. Der Aufbau entspricht weitgehend dem bekannten Aufbau, wie er in Figur 3 beschrieben wurde. Der Volllast-Indikator 11 ist nunmehr jedoch gemeinsam mit einer Rückstelleinrichtung 4 in einem Gehäuse 14 integriert und ragt in einen Hohlraum 18 des Gehäuses 14. Der Volllast-Indikator 11 ist zwischen einer Lasche 16, die mit geringem Abstand in etwa parallel zu einer Innenwand des Hohlraums 18 verläuft, und der Innenwand des Gehäuses 14 angeordnet, wobei die Lasche 16 mehr als die Hälfte des Volllast-Indikators 11 abdeckt. Ein erstes Ende 12 des Volllast-Indikators 11 ist mit dem Gehäuse 14 verbunden, während ein zweites Ende 13 frei in den Hohlraum 18 ragt. Der Volllast-Indikator 11 ist, wie in Figur 1 bereits beschrieben, als gekrümmtes, bandförmiges Federelement ausgebildet, dessen Krümmung vom ersten Ende 12 zum freien Ende 13 zunimmt. Die Rückstelleinrichtung 4 ist aus einer Dose gebildet, um die eine Rückstellfeder 10 gewunden ist, die an einem ersten Ende mit der Dose und an einem zweiten Ende an einer Befestigung 17 des Gehäuses 14 befestigt ist. Wie bereits oben beschrieben, ist das Pedal 2 mit dem Mitnehmer 6 über eine Strebe 9 verbunden. Der Mitnehmer 6 ist abhängig von der Pedalstellung im Hohlraum 18 schwenkbar. Die Krümmung der Lasche 16 ist ungefähr an die Bewegungskurve des äußeren Endes des Mitnehmers 6 angepasst, so dass der Mitnehmer 6 ungehindert an der Lasche 16 vorbeischwenken kann. Figur 4 b zeigt ein Fahrpedalmodul 1 in einer Volllast- Position, bei der das Pedal 2 so weit niedergedrückt ist, dass der Mitnehmer 6 an einer Stufe 19 des als Federelement ausgebildeten Volllast-Indikators 11 angelangt ist. Dabei liegt der Mitnehmer 6 in der Volllast-Position an dem Volllast-Indikator 11 bzw. an der Stufe 19 an.4 ac shows a preferred accelerator pedal module 1 according to the invention in positions between idle position and full load position with an activated full load indicator 11. For the functionality and meaning of individual elements not described, reference is made to the description of FIG. 3. The structure largely corresponds to the known structure as described in FIG. 3. However, the full-load indicator 11 is now integrated in a housing 14 together with a resetting device 4 and projects into a cavity 18 in the housing 14. The full-load indicator 11 is between a tab 16 which is at a short distance approximately parallel to an inner wall of the housing Cavity 18 extends, and the inner wall of the housing 14 is arranged, the tab 16 covering more than half of the full load indicator 11. A first end 12 of the full-load indicator 11 is connected to the housing 14, while a second end 13 projects freely into the cavity 18. As already described in FIG. 1, the full-load indicator 11 is designed as a curved, band-shaped spring element, the curvature of which increases from the first end 12 to the free end 13. The resetting device 4 is formed from a can, around which a return spring 10 is wound, which is fastened to the can at a first end and to a fastening 17 of the housing 14 at a second end. As already described above, the pedal 2 is connected to the driver 6 via a strut 9. The driver 6 is pivotable in the cavity 18 depending on the pedal position. The curvature of the tab 16 is approximately adapted to the movement curve of the outer end of the driver 6, so that the driver 6 can swing past the tab 16 unhindered. FIG. 4 b shows an accelerator pedal module 1 in a full load position, in which the pedal 2 is depressed to such an extent that the driver 6 has reached a step 19 of the full load indicator 11 designed as a spring element. The driver 6 is in the full load position on the full load indicator 11 or on the stage 19.
Figur 4 c zeigt, wie der Volllast-Indikator 11 mit der Rückstelleinrichtung 4 in der Volllast-Position des Pedals 2 verrastet ist . Der Mitnehmer 6 bewegt sich nur noch minimal nach unten, da das Pedal 2 mit seinem Abstandselement 3 fast am Gehäuse 14 anliegt, und kommt in innigen Kontakt mit dem verdickten freien Ende 13 des Volllast-Indikators 11. Einer auch nur geringen Weiterbewegung des Pedals 2 nach unten wird somit ein hoher Widerstand entgegen gesetzt, der sich dem Fahrer als schlagartige Erhöhung der Bedienkraft mitteilt. Wird das Pedal 2 entlastet, reicht die Spannkraft der Rückstellfeder 10 aus, um den Mitnehmer 6 aus der Verrastung mit dem freien Ende 13 des Volllast-Indikators 11 zu lösen und Richtung LeerlaufStellung zu bewegen. FIG. 4 c shows how the full-load indicator 11 is locked with the reset device 4 in the full-load position of the pedal 2. The driver 6 moves only minimally downwards, since the pedal 2 with its spacer element 3 is almost in contact with the housing 14, and comes into intimate contact with the thickened free end 13 of the full-load indicator 11. A slight further movement of the pedal 2 downwards there is a high resistance, which is communicated to the driver as a sudden increase in operating force. If the pedal 2 is relieved, the tension force of the return spring 10 is sufficient to release the driver 6 from the latching with the free end 13 of the full-load indicator 11 and to move it towards the neutral position.

Claims

Patentansprüche claims
1. Fahrpedalmodul mit einem Pedal (2) und einer Rückstelleinrichtung (4) für das Pedal (2) sowie einem Volllast- Indikator (20, 11) , dadurch gekennzeichnet, dass die Rückstelleinrichtung (4) in Volllast-Position des Pedals (2) mit dem Volllast-Indikator (11) verrastbar ist .1. Accelerator pedal module with a pedal (2) and a reset device (4) for the pedal (2) and a full load indicator (20, 11), characterized in that the reset device (4) in the full load position of the pedal (2) can be locked with the full load indicator (11).
2. Fahrpedalmodul nach Anspruch 1 , dadurch gekennzeichnet , dass der Volllast-Indikator (11) stabförmig mit gekrümmter Kontur ausgebildet ist.2. Accelerator pedal module according to claim 1, characterized in that the full load indicator (11) is rod-shaped with a curved contour.
3. Fahrpedalmodul nach Anspruch 1 oder 2 , dadurch gekennzeichnet, dass der Volllast-Indikator (11) zu seinem freien Ende (13) hin auf seiner konkaven Fläche (15) eine Stufe (19) zu einem Krümmungsmittelpunkt hin aufweist .3. Accelerator pedal module according to claim 1 or 2, characterized in that the full load indicator (11) towards its free end (13) on its concave surface (15) has a step (19) towards a center of curvature.
4. Fahrpedalmodul nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Volllast-Indikator (11) gemeinsam mit der Rückstelleinrichtung (4) in einem Gehäuse (14) integriert ist . 4. Accelerator pedal module according to one of the preceding claims, characterized in that the full load indicator (11) is integrated together with the resetting device (4) in a housing (14).
5. Fahrpedalmodul nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Rückstelleinrichtung (4) mit einem schwenkbar beweglichen Mitnehmer (6) zumindest in der Volllast- Position an dem Volllast-Indikator (11) anliegt.5. Accelerator pedal module according to one of the preceding claims, characterized in that the resetting device (4) bears with a pivotably movable driver (6) at least in the full load position on the full load indicator (11).
6. Fahrpedalmodul nach Anspruch 5, dass der Volllast-Indikator (11) in seiner Kontur an eine Bewegungskurve des Mitnehmers (6) angepasst ist.6. Accelerator pedal module according to claim 5, that the full load indicator (11) is adapted in its contour to a movement curve of the driver (6).
7. Fahrpedalmodul nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Volllast-Indikator (11) aus Kunststoff gebildet ist .7. Accelerator pedal module according to one of the preceding claims, characterized in that the full load indicator (11) is formed from plastic.
8. Fahrpedalmodul nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass Volllast-Indikator (11) als Federplatte ausgebildet ist .8. Accelerator pedal module according to one of the preceding claims, characterized in that the full-load indicator (11) is designed as a spring plate.
9. Fahrpedalmodul nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass Volllast-Indikator (11) als Rolle mit Druckfeder ausgebildet ist.9. Accelerator pedal module according to one of the preceding claims, characterized in that the full-load indicator (11) is designed as a roller with a compression spring.
10. Fahrpedalmodul-Volllast-Indikator zur Erzeugung eines fühlbaren mechanischen Widerstandes bei einer Volllast- Position eines Pedals (2) nach einem der vorhergehenden Ansprüche, gekennzeichnet durch einen bandförmigen Grundkörper mit einer Krümmung entlang seiner Längserstreckung. 10. Accelerator pedal module full load indicator for generating a tactile mechanical resistance at a full load position of a pedal (2) according to one of the preceding claims, characterized by a band-shaped base body with a curvature along its longitudinal extent.
11. Fahrpedalmodul-Volllast-Indikator nach Anspruch 10, dadurch gekennzeichnet, dass an einem im montierten Zustand freien Ende (13) eine Stufe (19) so angeordnet ist, dass das Ende (13) verdickt ist .11. Accelerator pedal module full load indicator according to claim 10, characterized in that a step (19) is arranged at an end (13) which is free in the assembled state, in such a way that the end (13) is thickened.
12. Fahrpedalmodul-Volllast-Indikator nach Anspruch 11, dadurch gekennzeichnet, dass die Krümmung entlang der Längserstreckung zum freien Ende (13) zunimmt. 12. Accelerator pedal module full load indicator according to claim 11, characterized in that the curvature increases along the longitudinal extent to the free end (13).
PCT/EP2005/000626 2004-01-31 2005-01-22 Accelerator pedal module and full load indicator for said accelerator pedal module WO2005073824A1 (en)

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