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WO2009087013A1 - Driving pedal - Google Patents

Driving pedal Download PDF

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Publication number
WO2009087013A1
WO2009087013A1 PCT/EP2008/067391 EP2008067391W WO2009087013A1 WO 2009087013 A1 WO2009087013 A1 WO 2009087013A1 EP 2008067391 W EP2008067391 W EP 2008067391W WO 2009087013 A1 WO2009087013 A1 WO 2009087013A1
Authority
WO
WIPO (PCT)
Prior art keywords
shell
pedal lever
pedal
sensor
accelerator pedal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2008/067391
Other languages
German (de)
French (fr)
Inventor
Heinrich Berglar
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hella GmbH and Co KGaA
Original Assignee
Hella KGaA Huek and Co
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 Hella KGaA Huek and Co filed Critical Hella KGaA Huek and Co
Priority to EP08870252A priority Critical patent/EP2238523A1/en
Publication of WO2009087013A1 publication Critical patent/WO2009087013A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • G05G1/38—Controlling members actuated by foot comprising means to continuously detect pedal position
    • 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—Arrangement or mounting of propulsion-unit control devices in vehicles
    • B60K26/02—Arrangement or mounting of propulsion-unit control devices in vehicles of initiating means or elements
    • 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
    • G05G1/50—Manufacturing of pedals; Pedals characterised by the material used
    • G05G1/506—Controlling members for foot-actuation
    • 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 for controlling an engine of a motor vehicle according to the preamble of claim 1.
  • Such accelerator pedals are used in motor vehicles to transmit control commands generated by a driver by operating the accelerator pedal to a corresponding vehicle control.
  • the position of the accelerator pedal is determined by a sensor and transmitted to the vehicle control.
  • a pedal in which a special friction element is arranged, which cooperates with a friction surface, which is fastened to a second end region of the pedal.
  • a variable frictional force is to be applied, which is intended to dampen a force applied to one end of the pedal force.
  • the pedal is complex to produce.
  • DE 102 58 285 A1 discloses an accelerator pedal module in which a pedal lever is rotatably supported in a bearing block.
  • the bearing block has a bearing area with a bearing bore, in which at least part of a sensor shaft is rotatably mounted. At least part of a radially outer circumferential surface of the bearing area forms a bearing surface for the pedal lever.
  • a rigid pivot bearing of the pedal lever is to be achieved, whereby angular errors of the sensor shaft to be avoided. Construction and production of the accelerator pedal module are relatively complex.
  • DE 10 2005 013 442 A1 describes an accelerator pedal module in which a sensor comprises two bipolar magnets with a sensor element arranged between them. A change in the direction of the magnetic field due to a pivotal movement of a pedal is converted by the sensor into an electrical signal representing a position of the pedal.
  • This accelerator pedal module is relatively expensive.
  • the object is solved by the features of claim 1.
  • the housing is formed in two parts from a shell and a lid, wherein the lid is designed as a bearing block for the pedal lever and fastened to the shell.
  • the accelerator pedal is composed of only a few components.
  • the parts of the accelerator pedal can be largely simply shaped, which reduces the manufacturing costs.
  • the assembly takes place by simple mating and partly by additional fastening.
  • Bearing shells according to claim 2 can be made of a special friction material and thus ensure a desired force hysteresis of the accelerator pedal. They can be manufactured with optimum material use and e.g. be mounted by pressing on appropriately trained points in the storage area of the accelerator pedal.
  • Coil springs are available with defined spring force. If two coil springs of different diameters are used, the one with the smaller diameter can be arranged in the other, which minimizes the space requirement.
  • the cover is pivotally mounted about an axis parallel to the axis of rotation of the pedal lever in the shell, wherein the coil springs are positioned from the axis of rotation about the axis spaced.
  • the force-hysteresis properties of the accelerator pedal can be set; These are preserved as far as possible over the service life because any slight wear that occurs is compensated by the pivoting as a result of the spring force.
  • a virtually backlash-free storage of the pedal lever is achieved, which increases the measurement accuracy of the sensor.
  • the arrangement of the sensor centrally in a recess of the pedal lever also minimizes the space requirement, thus allowing a very compact design of the accelerator pedal.
  • An arrangement of a stator of the sensor together with electronics in a sensor housing protects the sensitive parts from dirt and moisture in a relatively simple manner and is easy to assemble.
  • the integrated socket on the sensor housing can be realized with relatively little additional effort and simplifies the installation of the accelerator pedal in the motor vehicle.
  • a locking assembly of lid and shell is safe and relatively easy.
  • FIG. 1 is an exploded view of an accelerator pedal according to the invention.
  • FIG. 3 perspective views of a shell as a detail
  • Fig. 4 perspective views of a lid as a detail.
  • an accelerator pedal comprises a housing 1, in which a pedal lever 2 is rotatably mounted, and a sensor 3 for detecting a rotational movement of the pedal lever 2 relative to the housing 1.
  • the pedal lever 2 has in the side view in approximately the shape of a dull, nonuniform V and has a substantially rectangular cross-section.
  • the pedal lever 2 for material and weight savings may be at least partially formed as open to the side U, being arranged within the U reinforcing ribs.
  • a longer of the legs has a first end of the pedal lever 2, on the inside of which an area is designed as a control surface 4. The inside is defined here as the mutually facing sides of the legs.
  • a second end of the pedal lever 2, which lies opposite the first end and is shown more clearly in FIG. 2, is designed for rotatable mounting in the housing 1.
  • a support profile 5 is formed on the one hand on each of the two sides, which are perpendicular to the control surface 4, a support profile 5 is formed.
  • the support profile 5 protrudes from the associated side, has a rectangular cross-section and in the view has the shape of a circular ring section. This extends over an arc of 120 ° to 180 °, wherein the convex side faces the inside of the pedal lever 2.
  • two spaced semicircular first discs 6, of which only one is shown.
  • the circle centers of the first disc 6 and the support profile 5 are located on an axis which is perpendicular to the first discs 6 and at the same time forms the axis of rotation of the pedal lever 2 in the assembled state.
  • a recess 17 is formed, which extends further in an area to at least near the inner surface of the pedal lever 2 and to the second end.
  • the recess serves to receive the sensor 3 and is adapted to the shape thereof.
  • a bearing shell 7 is arranged at each of the support profiles 5.
  • the bearing shell 7 is made of a special material with defined frictional resistance.
  • Each bearing shell 7 is made in one piece as a thin, approximately semicircular plate, from whose one major surface a profile protrudes.
  • the bearing shell 7 has within this profile on a continuous recess whose shape and size corresponds to the support profile 5 minus a minimum clearance. The profile thus surrounds the sides of the support profile in the assembled state with a defined constant wall thickness.
  • the radius of the first disc 6 corresponds to the inner radius of the support profile 5 minus the wall thickness of the profile.
  • a kick-down switch 8 is arranged on the outside of the pedal lever 2 at a suitable location. Between the first discs 6 and the point for the kick-down switch 8, a receptacle 18 for two coil springs 12 is formed on the outside of the pedal lever 2.
  • the housing 1 comprises a shell 9 and a cover 10.
  • the interior of the shell 9, which is shown in Figure 3, is largely adapted to the shape of the second end portion of the pedal lever 2 such that the rotatable mounting is ensured.
  • the shell 9 has a substantially flat bottom, which is adjacent to the outside of the pedal lever 2 and into which a first opening in the size of the cover 10 is embedded.
  • the bottom has a stop surface for mechanically limiting the rotational movement of the pedal lever 2 and is provided for attachment in the motor vehicle.
  • the inside clear width of the shell 9 is stepped on both longitudinal sides and, starting from the first opening, initially corresponds to the width of the pedal lever 2 including the support profiles 5.
  • the step is located in the half of the shell 9 spaced from the bottom and corresponds in its Height - the clear width of the shell 9 decreasing - the height of the support profile 5.
  • the shape of the stage is substantially adapted to the associated shape of the bearing shell 7, that is predominantly circular arc-shaped with a corresponding radius.
  • Each broad side of the shell 9 has a further opening, of which a second opening serves as a passage for the pedal lever 2 and a third opening of the receptacle of the sensor 3.
  • the cover 10 shown in Figure 4 serves on the one hand to close the bottom of the shell 9 and on the other hand, the storage of the pedal lever 2.
  • a bearing block 10 semi-circular second discs 11 are formed on the longitudinal sides of the lid so that these in the assembled state in the shell. 9 protrude and carry the pedal lever 2 on the support profiles 5 and the bearing shells 7.
  • the radius of the second discs 11 corresponds to the associated radius of the bearing shells 7.
  • the lid 10 is coaxially hollowed semi-circular and thus serves as a bearing for the first discs 6.
  • Within the cavity and the lid a radial recess is centrally inserted.
  • the lid 10 is formed at a predetermined position for holding the two coil springs 12. These are located in the mounted state between the cover 10 and the receptacle 18 of the pedal lever 2.
  • the coil springs 12 cause on the one hand a defined back pressure of the pedal lever 2 against a serving foot and on the other hand a provision in a starting position.
  • the shell 9 and on the lid 10 means for mutual locking are arranged. These means, the shell 9 and the cover 10 are formed so that the cover 10 is pivotable within the shell 9 about an axis parallel to the axis of rotation of the pedal lever 2 in a small angular range. This pivot axis is located between the axis of rotation and the bearing point of the coil springs 12 in the cover 10, so that the bearing point and the second discs 11 are positioned on opposite pivot arms of the pivot axis.
  • the coil springs 12 have different diameters and are therefore plugged into each other. Between the nested coil springs 12, a U-shaped spacer 13 may be arranged to prevent their snagging.
  • the spacer 13 is e.g. made of foam.
  • the sensor 3 is surrounded by a sensor housing 13, which has a socket 14 at one end.
  • a sensor 15 associated with the rotor 15 is equipped for mounting by latching in the second end portion of the pedal lever 2.
  • the pedal lever 2 For the manufacture of the accelerator pedal, first the pedal lever 2, the bearing shells 7, the shell 9 and the cover 10 are each made of suitable plastic, e.g. produced by injection molding.
  • a bearing shell 7 is pressed, wherein each of the plate directly adjacent to the side surface of the pedal lever 2;
  • the rotor 15 are fastened in the recess 17 and optionally the kick-down switch 8, preferably latched.
  • the second end of the pedal lever 2 including the bearing shells 7 and the rotor 15 is inserted into the second opening of the shell 9.
  • the coil springs 12 with the spacer 16 are attached to the receptacle 18 of the spacer. dalhebels 2 plugged.
  • the lid 10 is guided in the first opening of the shell 9, wherein free ends of the coil springs 12 are brought to the predetermined position of the lid 10, and then pressed.
  • the lid 10 locks with the shell 9, the coil springs 12 are biased and the pedal lever 2 is brought within the housing 1 in the predetermined position and rotatably supported.
  • a predetermined pressure on the bearing of the pedal lever 2 is always exerted by the coil springs 12 due to the pivotable mounting of the lid 10 in the shell 9.
  • the sensor 3 is pressed into the third opening of the shell 9 and locked, the socket 14 protruding from the housing 1.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)

Abstract

A driving pedal for a motor vehicle, comprising a housing (1), wherein the housing (1) is formed in two parts from a shell (9) and a cover (10), wherein the cover (10) is designed as a bearing block for the pedal lever and can latch onto the shell (9).

Description

Fahrpedal accelerator

Beschreibungdescription

Die Erfindung betrifft einen Fahrpedal für die Steuerung einer Antriebsmaschine eines Kraftfahrzeugs gemäß dem Oberbegriff des Anspruchs 1.The invention relates to an accelerator pedal for controlling an engine of a motor vehicle according to the preamble of claim 1.

Solche Fahrpedale werden in Kraftfahrzeugen eingesetzt, um von einem Fahrer durch Bedienen des Fahrpedals erzeugte Steuerbefehle an eine entsprechende Fahrzeugsteuerung zu übermitteln. Hierfür wird die Stellung des Fahrpedals von einem Sensor ermittelt und an die Fahrzeugsteuerung übertragen.Such accelerator pedals are used in motor vehicles to transmit control commands generated by a driver by operating the accelerator pedal to a corresponding vehicle control. For this purpose, the position of the accelerator pedal is determined by a sensor and transmitted to the vehicle control.

Aus der DE 100 07 743 A1 ist ein Pedal bekannt, bei dem ein spezielles Reibelement angeordnet ist, das mit einer Reibfläche zusammenwirkt, die an einem zweiten Endbereich des Pedals befestigt ist. Hierdurch soll eine veränderliche Reibkraft aufbringbar sein, die eine auf ein Ende des Pedals aufgebrachte Kraft dämpfen soll. Das Pedal ist insgesamt aufwändig herzustellen.From DE 100 07 743 A1 a pedal is known, in which a special friction element is arranged, which cooperates with a friction surface, which is fastened to a second end region of the pedal. As a result, a variable frictional force is to be applied, which is intended to dampen a force applied to one end of the pedal force. Overall, the pedal is complex to produce.

Die DE 102 58 285 A1 offenbart ein Fahrpedalmodul, bei dem ein Pedalhebel in einem Lagerbock drehbar gehalten ist. Der Lagerbock weist einen Lagerbereich mit einer Lagerbohrung auf, in dem zumindest ein Teil einer Sensorwelle drehgelagert ist. Zumindest ein Teil einer radial äußeren Umfangsfläche des Lagerbereichs bildet eine Lagerfläche für den Pedalhebel. Hierdurch soll eine steife Drehlagerung des Pedalhebels erreicht werden, wodurch Winkelfehler der Sensorwelle vermieden werden sollen. Aufbau und Fertigung des Fahrpedalmoduls sind relativ aufwändig.DE 102 58 285 A1 discloses an accelerator pedal module in which a pedal lever is rotatably supported in a bearing block. The bearing block has a bearing area with a bearing bore, in which at least part of a sensor shaft is rotatably mounted. At least part of a radially outer circumferential surface of the bearing area forms a bearing surface for the pedal lever. As a result, a rigid pivot bearing of the pedal lever is to be achieved, whereby angular errors of the sensor shaft to be avoided. Construction and production of the accelerator pedal module are relatively complex.

Die DE 10 2005 013 442 A1 beschreibt ein Fahrpedalmodul, bei dem ein Sensor zwei bipolare Magnete mit einem zwischen diesen angeordneten Sensorelement umfasst. Eine Änderung der Richtung des Magnetfelds infolge einer Schwenkbewegung eines Pedals wird von dem Sensor in ein elektrisches Signal gewandelt, das eine Stellung des Pedals repräsentiert. Auch dieses Fahrpedalmodul ist relativ aufwändig. Ausgehend von der DE 102 58 285 A1 ist es die Aufgabe der Erfindung, ein Fahrpe¬ dal so zu verbessern, dass es aus wenigen Teilen aufgebaut sowie einfach und preis¬ wert herzustellen ist.DE 10 2005 013 442 A1 describes an accelerator pedal module in which a sensor comprises two bipolar magnets with a sensor element arranged between them. A change in the direction of the magnetic field due to a pivotal movement of a pedal is converted by the sensor into an electrical signal representing a position of the pedal. This accelerator pedal module is relatively expensive. Starting from the DE 102 58 285 A1, it is the object of the invention to improve a Fahrpe ¬ dal so that it is made up of few parts and simple and cheap to manufacture ¬.

Die Aufgabe ist durch die Merkmale des Anspruchs 1 gelöst. Das Gehäuse ist zweiteilig aus einer Schale und einem Deckel gebildet, wobei der Deckel als Lagerbock für den Pedalhebel ausgebildet und an der Schale befestigbar ist. Hierdurch ist das Fahrpedal aus nur wenigen Komponenten aufgebaut. Die Teile des Fahrpedals können weitgehend einfach geformt sein, was die Herstellkosten verringert. Der Zusammenbau erfolgt durch einfaches Zusammenstecken und teilweise durch zusätzliches Befestigen.The object is solved by the features of claim 1. The housing is formed in two parts from a shell and a lid, wherein the lid is designed as a bearing block for the pedal lever and fastened to the shell. As a result, the accelerator pedal is composed of only a few components. The parts of the accelerator pedal can be largely simply shaped, which reduces the manufacturing costs. The assembly takes place by simple mating and partly by additional fastening.

Die Unteransprüche betreffen die vorteilhafte Ausgestaltung der Erfindung.The subclaims relate to the advantageous embodiment of the invention.

Lagerschalen nach Anspruch 2 können aus einem speziellen Reibmaterial gefertigt sein und gewährleisten so eine erwünschte Krafthysterese des Fahrpedals. Sie können mit optimalem Materialeinsatz gefertigt und z.B. durch Aufpressen an entsprechend ausgebildeten Stellen im Lagerbereich des Fahrpedals montiert werden.Bearing shells according to claim 2 can be made of a special friction material and thus ensure a desired force hysteresis of the accelerator pedal. They can be manufactured with optimum material use and e.g. be mounted by pressing on appropriately trained points in the storage area of the accelerator pedal.

Schraubenfedern sind mit definierter Federkraft erhältlich. Werden zwei Schraubenfedern unterschiedlicher Durchmesser verwendet, kann die mit dem kleineren Durchmesser in der anderen angeordnet sei, was den Raumbedarf minimiert.Coil springs are available with defined spring force. If two coil springs of different diameters are used, the one with the smaller diameter can be arranged in the other, which minimizes the space requirement.

Der Deckel ist um eine Achse parallel zur Drehachse des Pedalhebels schwenkbar in der Schale befestigt, wobei die Schraubenfedern von der Drehachse über die Achse beabstandet positioniert sind. Hierdurch lassen sich einerseits die Kraftysterese- Eigenschaften des Fahrpedals einstellen; diese bleiben über die Lebensdauer wei- testgehend erhalten, weil eventuell auftretender geringer Verschleiß durch das Verschwenken infolge der Federkraft ausgeglichen wird. Andererseits wird eine praktisch spielfreie Lagerung des Pedalhebels erreicht, was die Messgenauigkeit des Sensors erhöht. Die Anordnung des Sensors zentrisch in einer Aussparung des Pedalhebels minimiert ebenfalls den Raumbedarf und erlaubt so ein sehr kompaktes Design des Fahrpedals.The cover is pivotally mounted about an axis parallel to the axis of rotation of the pedal lever in the shell, wherein the coil springs are positioned from the axis of rotation about the axis spaced. In this way, on the one hand, the force-hysteresis properties of the accelerator pedal can be set; These are preserved as far as possible over the service life because any slight wear that occurs is compensated by the pivoting as a result of the spring force. On the other hand, a virtually backlash-free storage of the pedal lever is achieved, which increases the measurement accuracy of the sensor. The arrangement of the sensor centrally in a recess of the pedal lever also minimizes the space requirement, thus allowing a very compact design of the accelerator pedal.

Eine Anordnung eines Stators des Sensors zusammen mit einer Elektronik in einem Sensorgehäuse schützt auf relativ einfache Weise die empfindlichen Teile vor Schmutz und Feuchtigkeit und ist einfach zu montieren. Die an dem Sensorgehäuse integrierte Steckerbuchse ist mit relativ geringem Zusatzaufwand realisierbar und vereinfacht die Montage des Fahrpedals in das Kraftfahrzeug.An arrangement of a stator of the sensor together with electronics in a sensor housing protects the sensitive parts from dirt and moisture in a relatively simple manner and is easy to assemble. The integrated socket on the sensor housing can be realized with relatively little additional effort and simplifies the installation of the accelerator pedal in the motor vehicle.

Ein verrastender Zusammenbau von Deckel und Schale ist sicher und relativ einfach.A locking assembly of lid and shell is safe and relatively easy.

Anhand der beigefügten Zeichnungen wird die Erfindung nachfolgend näher erläutert. Dabei zeigt:Reference to the accompanying drawings, the invention is explained in more detail below. Showing:

Fig. 1 eine Explosionszeichnung eines erfindungsgemäßen Fahrpedals Fig. 2 eine perspektivische Ansicht eines Teils eines Pedalhebels als Detail, teilweise geschnitten,2 is a perspective view of a part of a pedal lever as a detail, partially in section, FIG. 1 is an exploded view of an accelerator pedal according to the invention.

Fig. 3 perspektivische Ansichten einer Schale als Detail und Fig. 4 perspektivische Ansichten eines Deckels als Detail.Fig. 3 perspective views of a shell as a detail and Fig. 4 perspective views of a lid as a detail.

Wie aus der Figur 1 ersichtlich umfasst ein Fahrpedal ein Gehäuse 1 , in dem ein Pedalhebel 2 drehbar gelagert ist, und einen Sensor 3 zur Erfassung einer Drehbewegung des Pedalhebels 2 relativ zu dem Gehäuse 1.As can be seen in FIG. 1, an accelerator pedal comprises a housing 1, in which a pedal lever 2 is rotatably mounted, and a sensor 3 for detecting a rotational movement of the pedal lever 2 relative to the housing 1.

Der Pedalhebel 2 hat in der Seitenansicht in etwa die Form eines stumpfen, ungleichschenkligen V und weist einen im Wesentlichen rechteckigen Querschnitt auf. Hierbei kann der Pedalhebel 2 zur Material- und Gewichtsersparnis zumindest teilweise als zur Seite offenes U ausgebildet sein, wobei innerhalb des U Verstärkungsrippen angeordnet sind. Ein längerer der Schenkel weist ein erstes Ende des Pedalhebels 2 auf, an dessen Innenseite ein Bereich als Bedienfläche 4 ausgebildet ist. Die Innenseite ist hierbei als die einander zugewandten Seiten der Schenkel definiert. Ein zweites Ende des Pedalhebels 2, das dem ersten Ende gegenüber liegt und in der Figur 2 deutlicher dargestellt ist, ist zur drehbaren Lagerung in dem Gehäuse 1 ausgebildet. Hierfür ist zum einen an jeder der beiden Seiten, die senkrecht zu der Bedienfläche 4 sind, ein Stützprofil 5 ausgebildet. Das Stützprofil 5 ragt aus der zugeordneten Seite heraus, weist einen rechteckigen Querschnitt auf und hat in der Ansicht die Form eines Kreisring- Abschnitts. Dieser erstreckt sich über einen Bogen von 120° bis 180°, wobei die konvexe Seite zu Innenseite des Pedalhebels 2 weist. Zum anderen ragen aus der Außenseite, die der Innenseite gegenüber liegt, zwei beab- standete halbkreisförmige erste Scheiben 6, wovon nur eine dargestellt ist. Die Kreismittelpunkte der ersten Scheibe 6 und des Stützprofils 5 befinden sich auf einer Achse, die senkrecht zu den ersten Scheiben 6 ist und die in montiertem Zustand gleichzeitig die Drehachse des Pedalhebels 2 bildet. Zwischen den ersten Scheiben 6 ist eine Aussparung 17 gebildet, die sich weiter in einem Bereich bis zumindest in die Nähe der Innenfläche des Pedalhebels 2 und bis zu dem zweiten Ende erstreckt. Die Aussparung dient der Aufnahme des Sensors 3 und ist an dessen Form entsprechend angepasst.The pedal lever 2 has in the side view in approximately the shape of a dull, nonuniform V and has a substantially rectangular cross-section. Here, the pedal lever 2 for material and weight savings may be at least partially formed as open to the side U, being arranged within the U reinforcing ribs. A longer of the legs has a first end of the pedal lever 2, on the inside of which an area is designed as a control surface 4. The inside is defined here as the mutually facing sides of the legs. A second end of the pedal lever 2, which lies opposite the first end and is shown more clearly in FIG. 2, is designed for rotatable mounting in the housing 1. For this purpose, on the one hand on each of the two sides, which are perpendicular to the control surface 4, a support profile 5 is formed. The support profile 5 protrudes from the associated side, has a rectangular cross-section and in the view has the shape of a circular ring section. This extends over an arc of 120 ° to 180 °, wherein the convex side faces the inside of the pedal lever 2. On the other hand protrude from the outside, which is opposite to the inside, two spaced semicircular first discs 6, of which only one is shown. The circle centers of the first disc 6 and the support profile 5 are located on an axis which is perpendicular to the first discs 6 and at the same time forms the axis of rotation of the pedal lever 2 in the assembled state. Between the first discs 6, a recess 17 is formed, which extends further in an area to at least near the inner surface of the pedal lever 2 and to the second end. The recess serves to receive the sensor 3 and is adapted to the shape thereof.

An jedem der Stützprofile 5 ist eine Lagerschale 7 angeordnet. Die Lagerschale 7 ist aus einem speziellen Material mit definierten Reibwiderstand gefertigt. Jede Lagerschale 7 ist einstückig als dünne, in etwa halbkreisförmige Platte gefertigt, aus deren einer Hauptfläche ein Profil herausragt. Die Lagerschale 7 weist innerhalb dieses Profils eine durchgehende Aussparung auf, deren Form und Größe dem Stützprofil 5 abzüglich eines minimalen Spiels entspricht. Das Profil umgibt somit in montiertem Zustand die Seiten des Stützprofils mit einer definierten gleich bleibenden Wandstärke.At each of the support profiles 5, a bearing shell 7 is arranged. The bearing shell 7 is made of a special material with defined frictional resistance. Each bearing shell 7 is made in one piece as a thin, approximately semicircular plate, from whose one major surface a profile protrudes. The bearing shell 7 has within this profile on a continuous recess whose shape and size corresponds to the support profile 5 minus a minimum clearance. The profile thus surrounds the sides of the support profile in the assembled state with a defined constant wall thickness.

Der Radius der ersten Scheibe 6 entspricht dem inneren Radius des Stützprofils 5 abzüglich der Wandstärke des Profils.The radius of the first disc 6 corresponds to the inner radius of the support profile 5 minus the wall thickness of the profile.

Wenn das Fahrpedal für ein Kraftfahrzeug mit automatischem Getriebe bestimmt ist, ist an der Außenseite des Pedalhebels 2 an geeigneter Stelle ein Kick-Down- Schalter 8 angeordnet. Zwischen den ersten Scheiben 6 und der Stelle für den Kick-Down- Schalter 8 ist an der Außenseite des Pedalhebels 2 eine Aufnahme 18 für zwei Schraubenfedern 12 ausgebildet.If the accelerator pedal is intended for a motor vehicle with an automatic transmission, a kick-down switch 8 is arranged on the outside of the pedal lever 2 at a suitable location. Between the first discs 6 and the point for the kick-down switch 8, a receptacle 18 for two coil springs 12 is formed on the outside of the pedal lever 2.

Das Gehäuse 1 umfasst eine Schale 9 und einen Deckel 10.The housing 1 comprises a shell 9 and a cover 10.

Das Innere der Schale 9, die in der Figur 3 dargestellt ist, ist weitgehend an die Form des zweiten Endbereichs des Pedalhebels 2 derart angepasst, dass die drehbare Lagerung gewährleistet ist. Wie aus der Figur 3 ersichtlich weist die Schale 9 einen im Wesentlichen ebenen Boden auf, der zu der Außenseite des Pedalhebels 2 benachbart ist und in den eine erste Öffnung in der Größe des Deckels 10 eingelassen ist. Der Boden weist eine Anschlagfläche zur mechanischen Begrenzung der Drehbewegung des Pedalhebels 2 auf und ist für die Befestigung in dem Kraftfahrzeug vorgesehen. Die lichte innere Breite der Schale 9 ist an beiden Längsseiten gestuft und entspricht ausgehend von der ersten Öffnung zunächst der Breite des Pedalhebels 2 einschließlich der Stützprofile 5. Die Stufe befindet sich in der von dem Boden beab- standeten Hälfte der Schale 9 und entspricht in ihrer Höhe - die lichte Weite der Schale 9 verkleinernd - der Höhe des Stützprofils 5. Die Form der Stufe ist im Wesentlichen an die zugeordnete Form der Lagerschale 7 angepasst, das heißt überwiegend kreisbogenförmig mit entsprechendem Radius. Jede Breitseite der Schale 9 weist eine weitere Öffnung auf, wovon eine zweite Öffnung als Durchlass für den Pedalhebel 2 und eine dritte Öffnung der Aufnahme des Sensors 3 dient.The interior of the shell 9, which is shown in Figure 3, is largely adapted to the shape of the second end portion of the pedal lever 2 such that the rotatable mounting is ensured. As can be seen in FIG. 3, the shell 9 has a substantially flat bottom, which is adjacent to the outside of the pedal lever 2 and into which a first opening in the size of the cover 10 is embedded. The bottom has a stop surface for mechanically limiting the rotational movement of the pedal lever 2 and is provided for attachment in the motor vehicle. The inside clear width of the shell 9 is stepped on both longitudinal sides and, starting from the first opening, initially corresponds to the width of the pedal lever 2 including the support profiles 5. The step is located in the half of the shell 9 spaced from the bottom and corresponds in its Height - the clear width of the shell 9 decreasing - the height of the support profile 5. The shape of the stage is substantially adapted to the associated shape of the bearing shell 7, that is predominantly circular arc-shaped with a corresponding radius. Each broad side of the shell 9 has a further opening, of which a second opening serves as a passage for the pedal lever 2 and a third opening of the receptacle of the sensor 3.

Der in der Figur 4 dargestellte Deckel 10 dient einerseits dem Verschließen des Bodens der Schale 9 und andererseits der Lagerung des Pedalhebels 2. Als Lagerbock sind an den Längsseiten des Deckels 10 halbkreisförmige zweite Scheiben 11 so ausgebildet, dass diese im montierten Zustand in die Schale 9 ragen und den Pedalhebel 2 über die Stützprofile 5 und die Lagerschalen 7 tragen. Der Radius der zweiten Scheiben 11 entspricht dem zugeordneten Radius der Lagerschalen 7. Zwischen den zweiten Scheiben 11 ist der Deckel 10 koaxial halbreisförmig ausgehöhlt und dient so als Lager für die ersten Scheiben 6. Innerhalb der Aushöhlung und des Deckels ist zentrisch eine radiale Vertiefung eingelassen. Der Deckel 10 ist an einer vorbestimmten Stelle zur Halterung der zwei Schraubenfedern 12 ausgebildet. Diese befinden sich im montierten Zustand zwischen dem Deckel 10 und der Aufnahme 18 des Pedalhebels 2. Die Schraubenfedern 12 bewirken einerseits einen definierten Gegendruck des Pedalhebels 2 gegen einen bedienenden Fuß und andererseits eine Rückstellung in eine Ausgangsstellung.The cover 10 shown in Figure 4 serves on the one hand to close the bottom of the shell 9 and on the other hand, the storage of the pedal lever 2. As a bearing block 10 semi-circular second discs 11 are formed on the longitudinal sides of the lid so that these in the assembled state in the shell. 9 protrude and carry the pedal lever 2 on the support profiles 5 and the bearing shells 7. The radius of the second discs 11 corresponds to the associated radius of the bearing shells 7. Between the second discs 11, the lid 10 is coaxially hollowed semi-circular and thus serves as a bearing for the first discs 6. Within the cavity and the lid a radial recess is centrally inserted. The lid 10 is formed at a predetermined position for holding the two coil springs 12. These are located in the mounted state between the cover 10 and the receptacle 18 of the pedal lever 2. The coil springs 12 cause on the one hand a defined back pressure of the pedal lever 2 against a serving foot and on the other hand a provision in a starting position.

An der Schale 9 und an dem Deckel 10 sind Mittel zum gegenseitigen Verrasten angeordnet. Diese Mittel, die Schale 9 und der Deckel 10 sind so ausgebildet, dass der Deckel 10 innerhalb der Schale 9 um eine Achse parallel zu der Drehachse des Pedalhebels 2 in einem kleinen Winkelbereich verschwenkbar ist. Diese Schwenkachse befindet sich zwischen der Drehachse und der Lagerstelle der Schraubenfedern 12 in dem Deckel 10, so dass die Lagerstelle und die zweiten Scheiben 11 an entgegengesetzten Dreharmen von der Schwenkachse positioniert sind.On the shell 9 and on the lid 10 means for mutual locking are arranged. These means, the shell 9 and the cover 10 are formed so that the cover 10 is pivotable within the shell 9 about an axis parallel to the axis of rotation of the pedal lever 2 in a small angular range. This pivot axis is located between the axis of rotation and the bearing point of the coil springs 12 in the cover 10, so that the bearing point and the second discs 11 are positioned on opposite pivot arms of the pivot axis.

Die Schraubenfedern 12 weisen unterschiedliche Durchmesser auf und sind daher ineinander steckbar. Zwischen den ineinander gesteckten Schraubenfedern 12 kann ein U-förmiger Abstandhalter 13 angeordnet sein, um deren Verhaken zu verhindern. Der Abstandhalter 13 ist z.B. aus Schaumstoff gefertigt.The coil springs 12 have different diameters and are therefore plugged into each other. Between the nested coil springs 12, a U-shaped spacer 13 may be arranged to prevent their snagging. The spacer 13 is e.g. made of foam.

Der Sensor 3 ist von einem Sensorgehäuse 13 umgeben, das an einem Ende eine Steckbuchse 14 aufweist. Ein zu dem Sensor 3 gehöriger Rotor 15 ist zur Montage durch Verrasten in dem zweiten Endbereich des Pedalhebels 2 ausgerüstet.The sensor 3 is surrounded by a sensor housing 13, which has a socket 14 at one end. A sensor 15 associated with the rotor 15 is equipped for mounting by latching in the second end portion of the pedal lever 2.

Zur Fertigung des Fahrpedals werden zunächst der Pedalhebel 2, die Lagerschalen 7, die Schale 9 und der Deckel 10 aus jeweils geeignetem Kunststoff z.B. im Spritzgieß- Verfahren hergestellt.For the manufacture of the accelerator pedal, first the pedal lever 2, the bearing shells 7, the shell 9 and the cover 10 are each made of suitable plastic, e.g. produced by injection molding.

Auf jedes Stützprofil 5 wird eine Lagerschale 7 gepresst, wobei jeweils die Platte unmittelbar an die Seitenfläche des Pedalhebels 2 grenzt ; es werden der Rotor 15 in der Aussparung 17 und gegebenenfalls der Kick-Down- Schalter 8 befestigt, vorzugsweise verrastet. Das zweite Ende des Pedalhebels 2 einschließlich der Lagerschalen 7 und des Rotors 15 wird in die zweite Öffnung der Schale 9 eingeführt. Hierbei weist die Innenfläche des Pedalhebels 2 von der ersten Öffnung der Schale 9 weg. Die Schraubenfedern 12 mit dem Abstandhalter 16 werden an der Aufnahme 18 des Pe- dalhebels 2 aufgesteckt. Anschließend wird der Deckel 10 in die erste Öffnung der Schale 9 geführt, wobei freie Enden der Schraubenfedern 12 an die vorbestimmte Stelle des Deckels 10 gebracht werden, und dann eingepresst. Hierbei verrastet der Deckel 10 mit der Schale 9, die Schraubenfedern 12 werden vorgespannt und der Pedalhebel 2 wird innerhalb des Gehäuses 1 in die vorbestimmte Position gebracht und so drehbar gelagert. Hierbei wird durch die Schraubenfedern 12 infolge der verschwenkbaren Lagerung des Deckels 10 in der Schale 9 immer ein vorbestimmter Druck auf die Lagerung des Pedalhebels 2 ausgeübt. Schließlich wird der Sensor 3 in die dritte Öffnung der Schale 9 gedrückt und verrastet, wobei die Steckbuchse 14 aus dem Gehäuse 1 herausragt.On each support section 5, a bearing shell 7 is pressed, wherein each of the plate directly adjacent to the side surface of the pedal lever 2; The rotor 15 are fastened in the recess 17 and optionally the kick-down switch 8, preferably latched. The second end of the pedal lever 2 including the bearing shells 7 and the rotor 15 is inserted into the second opening of the shell 9. Here, the inner surface of the pedal lever 2 away from the first opening of the shell 9. The coil springs 12 with the spacer 16 are attached to the receptacle 18 of the spacer. dalhebels 2 plugged. Subsequently, the lid 10 is guided in the first opening of the shell 9, wherein free ends of the coil springs 12 are brought to the predetermined position of the lid 10, and then pressed. Here, the lid 10 locks with the shell 9, the coil springs 12 are biased and the pedal lever 2 is brought within the housing 1 in the predetermined position and rotatably supported. In this case, a predetermined pressure on the bearing of the pedal lever 2 is always exerted by the coil springs 12 due to the pivotable mounting of the lid 10 in the shell 9. Finally, the sensor 3 is pressed into the third opening of the shell 9 and locked, the socket 14 protruding from the housing 1.

Die spätere Montage des Fahrpedais in dem Kraftfahrzeug erfolgt auf bekannte Weise. The subsequent assembly of the accelerator pedal in the motor vehicle takes place in a known manner.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1 Gehäuse1 housing

2 Pedalhebel2 pedal lever

3 Sensor3 sensor

4 Bedienfläche4 control surface

5 Stützprofil5 support profile

6 erste Scheibe6 first disc

7 Lagerschale7 bearing shell

8 Kick-Down- Schalter8 kick-down switches

9 Schale9 bowl

10 Deckel10 lids

11 zweite Scheibe11 second disc

12 Schraubenfeder12 coil spring

13 Sensorgehäuse13 sensor housing

14 Steckbuchse14 socket

15 Rotor15 rotor

16 Abstand halter16 distance holder

17 Aussparung17 recess

18 Aufnahme 18 recording

Claims

FahrpedalPatentansprüche Accelerator patent claims 1. Fahrpedal für die Steuerung einer Antriebsmaschine eines Kraftfahrzeugs, mit einem Gehäuse (1 ), mit einem in dem Gehäuse (1 ) drehbar gelagerten Pedalhebel (2) und mit einem Sensor (3) zur Ermittlung einer Pedalhebel- Stellung, dadurch gekennzeichnet, dass das Gehäuse (1) zweiteilig aus einer Schale (9) und einem Deckel (10) gebildet ist, wobei der Deckel (10) als Lagerbock für den Pedalhebel (2) ausgebildet und an der Schale (9) befestigbar ist.1. accelerator pedal for controlling a drive motor of a motor vehicle, comprising a housing (1), with a in the housing (1) rotatably mounted pedal lever (2) and with a sensor (3) for determining a pedal lever position, characterized in that the housing (1) is formed in two parts from a shell (9) and a cover (10), the cover (10) being designed as a bearing block for the pedal lever (2) and attachable to the shell (9). 2. Fahrpedal nach Anspruch 1 , dadurch gekennzeichnet, dass zwischen benachbarten Seiten der Schale (θ) und des Pedalhebels (2) Lagerschalen (7) angeordnet sind.2. accelerator pedal according to claim 1, characterized in that between adjacent sides of the shell (θ) and the pedal lever (2) bearing shells (7) are arranged. 3. Fahrpedal nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass zur Erzeugung einer Rückstellkraft zwischen der Schale (9) und dem Pedalhebel (2) zwei Schraubenfedern (12) angeordnet sind.3. accelerator pedal according to claim 1 or 2, characterized in that for generating a restoring force between the shell (9) and the pedal lever (2) two coil springs (12) are arranged. 4. Fahrpedal nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Deckel (10) um eine Achse parallel zur Drehachse des Pedalhebels (2) schwenkbar in der Schale (9) befestigt ist, wobei die Schraubenfedern (12) von der Drehachse über die Achse beabstandet positioniert sind.4. accelerator pedal according to one of claims 1 to 3, characterized in that the cover (10) about an axis parallel to the axis of rotation of the pedal lever (2) is pivotally mounted in the shell (9), wherein the coil springs (12) from the axis of rotation are positioned spaced apart over the axis. 5. Fahrpedal nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Sensor (3) im Wesentlichen zentrisch in einer Aussparung (17) des Pedalhebels (2) angeordnet ist, die im Bereich von dessen Drehachse ausgebildet ist, wobei ein Rotor (15) des Sensors (3) an dem Pedalhebel (2) befestigt ist.5. accelerator pedal according to one of claims 1 to 4, characterized in that the sensor (3) is arranged substantially centrally in a recess (17) of the pedal lever (2) which is formed in the region of its axis of rotation, wherein a rotor ( 15) of the sensor (3) is attached to the pedal lever (2). 6. Fahrpedal nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass ein Stator des Sensors (3) zusammen mit einer Elektronik in einem Sensorgehäuse (13) angeordnet ist, an dem eine Steckbuchse (14) ausgebildet ist.6. accelerator pedal according to one of claims 1 to 5, characterized in that a stator of the sensor (3) is arranged together with an electronics in a sensor housing (13) on which a socket (14) is formed. 7. Fahrpedal nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Deckel (10) mit der Schale (9) verrastet ist. 7. accelerator pedal according to one of claims 1 to 6, characterized in that the cover (10) with the shell (9) is latched.
PCT/EP2008/067391 2008-01-05 2008-12-12 Driving pedal Ceased WO2009087013A1 (en)

Priority Applications (1)

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EP08870252A EP2238523A1 (en) 2008-01-05 2008-12-12 Driving pedal

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DE102008003296.4A DE102008003296B4 (en) 2008-01-05 2008-01-05 accelerator
DE102008003296.4 2008-01-05

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WO (1) WO2009087013A1 (en)

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US8534157B2 (en) 2010-02-17 2013-09-17 Ksr Technologies Co. Electronic throttle control pedal assembly with hysteresis
US20150277479A1 (en) * 2012-11-23 2015-10-01 Hella Kgaa Hueck & Co. Pedal System for the Generation of a Force Path Having Hysteresis
US12344090B2 (en) 2022-03-28 2025-07-01 Cts Corporation Vehicle pedal that emulates mechanical hysteresis
US12429897B2 (en) 2021-12-17 2025-09-30 HELLA GmbH & Co. KGaA Motor vehicle pedal with a detector for detecting a pedal arm breakage

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DE102011050056A1 (en) 2011-05-03 2012-11-08 Hella Kgaa Hueck & Co. Accelerator pedal for motor vehicle, has rotor that is directly coupled with pulling element to exert force against control plate
DE102012010084B4 (en) 2012-05-23 2019-11-28 Volkswagen Aktiengesellschaft Over-center spring arrangement
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DE102017108487A1 (en) 2017-04-21 2018-10-25 HELLA GmbH & Co. KGaA Pedal for a motor vehicle
WO2019210945A1 (en) * 2018-05-02 2019-11-07 HELLA GmbH & Co. KGaA Standing pedal for a vehicle
US11307606B2 (en) * 2018-08-31 2022-04-19 Cts Corporation Pedal friction pad for vehicle pedal assembly
IT201900020490A1 (en) 2019-11-06 2021-05-06 Bitron Spa Accelerator pedal, especially for a motor vehicle
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DE112022002812T5 (en) * 2021-05-25 2024-04-11 KSR IP Holdings, LLC PEDAL ASSEMBLY WITH ELECTRONIC THROTTLE CONTROL
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US12524032B2 (en) 2022-06-15 2026-01-13 KSR IP Holdings, LLC Floor mounted pedal assembly
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US20150277479A1 (en) * 2012-11-23 2015-10-01 Hella Kgaa Hueck & Co. Pedal System for the Generation of a Force Path Having Hysteresis
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