Accelerator pedal arrangement

Abstract

The invention relates to an accelerator pedal arrangement (1) comprising: - a housing (2); - a pedal arm (3) which can be moved between a first position (P1) and a second position (P2); - a restoring element (5) which forces the pedal arm (3) into the first position (P1) in the state in which force is not applied; - a holding element (6); - a fluidically acting damping element (8) which is formed in particular separately from the holding element (6); the damping element (8) having: - an in particular cup-shaped piston housing (9) having a longitudinal axis (LA); - a piston (10) which is mounted in the piston housing so as to be movable along the longitudinal axis (LA), said piston having a tappet (11); wherein the damping element (8) is releasably connected to the holding element (7), wherein - the damping element (8) is coupled, in particular by means of the tappet (11), to the housing (2), and the holding element (6) is coupled to the pedal arm (3), or - the holding element (6) is coupled to the housing (2) and the damping element (8) is coupled, in particular by means of the tappet (11), to the pedal arm (3).

Description

[0001] R. 414799

[0002] Description

[0003] title

[0004] Accelerator pedal arrangement

[0005] Field of invention

[0006] The invention relates to an accelerator pedal arrangement.

[0007] State of the art

[0008] In accelerator pedal arrangements where a pedal arm is movable between a first and a second position, and a return element is provided that forces the pedal arm into the first position when not under force, a sudden release of force on the pedal arm in the second position (or in a position different from the first) can cause the pedal arm to be forced very rapidly back into the first position by the return element. This can result in the pedal arm striking, for example, an operator's foot or a bearing stop at high speed, causing a loud noise. This can be unpleasant and / or startling for the user.

[0009] From DE 102 07 047 A1, a pedal arrangement is known in which the return movement to the first position is dampened by arranging a magnet at the end of a pedal arm opposite a footplate. In the first position, this magnet is opposite another magnet in a housing of the pedal arrangement, with the two magnets facing each other with their south poles (same poles). A rapid movement of the pedal arm to the first position is dampened by the repelling magnets. At the same time, however, the restoring force of the restoring element acting on the pedal arm in the first position is also reduced in the static state (first position is held).

[0010] From DE 10 2020 204 106 A1, an accelerator pedal arrangement with a highly integrated return device is known, in which at least two return springs are integrally connected to an R. 414799

[0011] - 2 - are designed with a fluidically acting damping element. The fluidically acting damping element has a cavity filled with gas or liquid, i.e., fluid-filled, the volume of which can be changed by moving a piston. This highly integrated return mechanism makes it possible to provide a force-displacement characteristic in a single component that offers both a smooth transition between the different regions of the force-displacement characteristic and exhibits hysteresis during actuation. A counterforce acting by the damping element against the force of the return springs is also dependent on the actuation speed, so that an excessively rapid return of the pedal arm to its initial position can be avoided when the pedal arm is suddenly released.This pedal assembly, and especially the return mechanism, is very complex and therefore expensive to manufacture and not easily adaptable to different pedal characteristics. In particular, it is not possible to selectively install different, simple, and inexpensive damping elements in the return mechanism and thus use such interchangeable damping elements in the pedal assembly. Furthermore, replacing the damping element in the event of a leak or failure is very expensive, as the entire (complex and expensive) return mechanism must then be replaced. This can be so time-consuming and costly that it is preferable to replace the entire pedal assembly, which is detrimental to sustainability and ease of maintenance.

[0012] Disclosure of the invention

[0013] The invention is based on the understanding that it is undesirable for the pedal arm to strike a part of the operator's body or for a knocking noise to occur when the pedal arm is suddenly released from the first position, and that providing two magnets to decelerate the pedal arm before it reaches the first position, or even integrating a fluidic damping element with two return springs as a return element for the pedal assembly in a single return mechanism, is technically complex and expensive to manufacture, and that, particularly when using a magnetic solution, the polarity of the magnets can be confused. Furthermore, the invention is based on the understanding that it can be desirable for the full return force of the return element to act on the pedal arm in the first (static) position.Furthermore, the invention is based on the understanding that different pedal characteristics are required depending on customer requirements. R. 414799.

[0014] - 3 - characteristics are desired and a simple and cost-effective adjustment of the characteristics is desired, in particular through the use of readily available standard components. Finally, the invention is based on the understanding that the pedal assembly should be easy, cost-effective and sustainably repairable or maintainable, e.g. in the event of a defect in the damping element.

[0015] Therefore, there may be a need to provide an accelerator pedal assembly that is cost-effective, unambiguous, and easy to manufacture and maintain; that allows for simple and cost-effective adaptation of the pedal characteristics to customer requirements, or enables a modular concept with, for example, the same housing and / or pedal arm but different damping properties; and that prevents the pedal arm from striking parts of the accelerator pedal assembly or parts of the operator's body when suddenly released, while simultaneously ensuring that, in the static case (held first position), the full restoring force of the return element acts on the pedal arm.

[0016] Advantages of the invention

[0017] This need can be met by the subject matter of the present invention according to the independent claim. Advantageous embodiments of the present invention are described in the dependent claims.

[0018] According to a first aspect of the invention, an accelerator pedal arrangement is proposed.

[0019] The accelerator pedal assembly comprises a housing. The accelerator pedal assembly further comprises a pedal arm that can be moved between a first position and a second position. It further comprises a return element that forces the pedal arm into the first position when not under force. It further comprises a retaining element. It further comprises a fluid damping element. The damping element comprises a piston housing with a longitudinal axis. The damping element further comprises a piston movably mounted in the piston housing along the longitudinal axis, the piston being coupled to a plunger. The damping element is detachably connected to the retaining element. R. 414799

[0020] - 4 -

[0021] It is provided that the damping element and the retaining element are coupled to the pedal arm on the one hand and to the housing on the other, or are in operative connection with them, or are in contact with them, or are in mechanical contact with them.

[0022] This can be achieved by coupling the damping element, particularly via the plunger, to the housing and the retaining element to the pedal arm. This can be described as the first coupling alternative.

[0023] Alternatively, this can be achieved by coupling the retaining element to the housing and the damping element, in particular by means of the plunger, to the pedal arm. This can be described as the second coupling alternative.

[0024] This advantageously allows for the quick, easy, and cost-effective use of a different damping element, depending on the application, customer requirements, and desired damping characteristics, without requiring any further modifications to the pedal assembly. Furthermore, instead of a highly integrated and expensive special return mechanism, cost-effective standard elements, e.g., from other application areas, can be used for the fluidic damping element. In the event of a damping element failure, it can be easily detached from the retaining element and replaced quickly and cost-effectively. This makes the pedal assembly particularly durable and easy to maintain. The fluidic damping element also effectively prevents the pedal arm from slamming against the housing, e.g.,This occurs when the pedal arm is suddenly released, for example, in the second position. A force from the fluidic damping element, which counteracts the restoring force of the return element, can depend on the displacement speed of the pedal arm or the piston in the piston housing. In particular, this force can increase significantly with increasing speed, thus providing particularly good damping or limiting the maximum achievable displacement speed through the return element. In the first position of the pedal arm (in the static case), essentially the full force of the return element can still be applied, and the pedal arm rests against a defined stop with a defined force.Furthermore, the retaining element can advantageously ensure that, even during a rotational movement of the pedal arm, the plunger of the damping element strikes the housing (in the first coupling alternative) essentially parallel to the longitudinal axis in almost all or all positions of the pedal arm, or on the pedal arm R. 414799.

[0025] - 5 - (in the second coupling alternative) or introduces the damping force. This allows the fluidic damping element to act effectively and efficiently in all positions, advantageously reducing or eliminating lateral forces on the plunger and piston. Furthermore, it is advantageous to generally dispense with separate fastening or retaining means on the damping element, so that the damping element or a damping element housing can be designed particularly simply, e.g., with a smooth outer wall. For example, it is advantageous to omit retaining structures projecting from the damping element for holding it in / on the housing or pedal arm (e.g., axle stubs, eyelets, etc.) or retaining structures projecting into the damping element for holding it in / on the housing or pedal arm (e.g., mounting openings, bearing openings, notches, threaded holes, etc.). These retaining structures can advantageously be provided in a functionally separate manner within or on the retaining element.

[0026] In the event that more than one retaining element and more than one damping element assigned to or connected with the respective retaining element is provided, it may be provided, for example, that at least one pairing of retaining element and damping element is coupled with pedal arm and housing in the first coupling alternative and at least one pairing of retaining element and damping element is coupled with pedal arm and housing in the second coupling alternative.

[0027] An actuating or control element, such as a footplate, actuator plate, handle, bar, or similar device, can be arranged or attached to the pedal arm. In particular, the actuating element can be directly connected to the pedal arm. A user can operate the pedal assembly using the actuating or control element, for example, with a limb, such as a foot or hand.

[0028] For example, the pedal assembly may consist of only a single pedal arm or lever arm. In particular, the pedal assembly may be designed without any interacting or interacting linkages, pedal arms, or lever arms. This allows the pedal assembly to be advantageously simple (less complex), cost-effective, and space-saving.

[0029] The retaining element can, for example, include a retaining element housing. R. 414799

[0030] - 6 -

[0031] The damping element can, for example, be designed separately from the retaining element. In other words, the damping element and the retaining element are not integrally formed together; they are two separate elements.

[0032] The piston housing can, for example, be cup-shaped. It can enclose a hollow piston housing interior.

[0033] The retaining element can, for example, be designed to hold or retain the damping element in the accelerator pedal assembly.

[0034] The damping element can, for example, be connected (detachably) to the retaining element with virtually no play in a radial direction perpendicular to the longitudinal axis or an axial direction. The axial direction can, for example, run parallel to the longitudinal axis.

[0035] The retaining element can be made of plastic, for example, or comprise plastic predominantly. It can be manufactured using an injection molding process. This advantageously enables particularly simple and cost-effective production. Furthermore, it allows for a particularly low weight.

[0036] The piston housing can be made of plastic, for example, or comprise plastic predominantly. It can be manufactured using an injection molding process. This advantageously enables particularly simple and cost-effective production. Furthermore, it allows for a particularly low weight.

[0037] The pedal arm can be coupled to the return element, for example, especially in all positions from the first position to the second position.

[0038] The piston can be sealed, for example. It can be sealed against the piston housing, for example.

[0039] The fluidic damping element can, for example, have a damping opening, whereby when the pedal arm is moved towards the first position, a piston volume of the piston housing limited by the piston is changed, and a compensating volume of fluid to compensate for the volume change is predominantly provided by the R. 414799

[0040] - 7 -

[0041] Flowing through the damping opening.

[0042] The fluidic damping element counteracts the acceleration caused by the return element. Due to the damping orifice, the fluid cannot abruptly flow out of the piston volume or into the changing piston volume resulting from the displacement towards the first position. The damping orifice reduces the fluid's flow cross-section. This creates a (temporary) counterforce to the force of the return element, thus slowing the acceleration of the pedal arm. Once the first position is reached and fluid equalization is achieved, the entire force of the return element is still advantageously (essentially) available.

[0043] The piston can be sealed against a wall of the piston housing, for example, by means of a circumferential, particularly flexible, seal. The damping opening is, for example, the only means provided to effect fluid exchange during volume changes. This exemplary seal can, for example, be designed as a type of check valve, so that when the piston volume changes as the pedal arm moves towards the second position, fluid can easily pass through the seal, for example, flowing between the piston edge and a wall of the piston housing. During the reverse movement of the pedal arm (towards the first position), this seal can then prevent the fluid flow. The seal or sealing element can, for example, be designed as a type of diaphragm valve, but is not limited to this embodiment. The seal can, for example, have a hood shape, a hat shape, or any other shape.

[0044] For example, the damping opening can be integrated into the piston. This advantageously provides a particularly durable accelerator pedal arrangement. In the event of a defect in the damping opening, it is sufficient to replace only the piston.

[0045] Alternatively or additionally, the damping opening can be provided in the piston housing. This advantageously allows the damping opening to be incorporated into a particularly robust element. The piston housing can also be designed with a greater wall thickness than the piston. Furthermore, depending on the geometric arrangement of one or more damping openings, the damping characteristics can be specifically adjusted or controlled based on the pedal position (or the position of the piston in the piston housing). R. 414799

[0046] - 8 - If at least one damping opening is arranged, for example, in a wall of the piston housing, the damping ends or changes as soon as the piston has passed this damping opening. This allows, for example, for only slight damping to occur at the beginning of the movement from the second position to the first position (e.g., by providing multiple damping openings at different heights in the wall of the piston housing). As the piston passes through each subsequent damping opening, the open flow cross-section decreases and the damping increases.

[0047] For example, the damping opening can be designed with a changing diameter and, in particular, a conical shape. This simplifies the manufacturing of the through-hole. Furthermore, this advantageously reduces noise generation in the area of ​​the through-hole.

[0048] For example, the pedal arm can be mounted in a bearing section on or in the housing in a way that allows it to be displaceable, and in particular rotatable, with the pedal arm having a lever section with a free end. In the first position, the pedal arm rests against the housing section of the lever. This advantageously creates a particularly robust accelerator pedal assembly. Because the pedal arm rests against the housing in the lever section, the holding force acting on the contact point or stop (against the restoring force of the return element) can be reduced, since the full length of the lever arm from the bearing to the contact point can be utilized.

[0049] At the free end of the lever section, for example a footplate or a control element (e.g. a handle) can be arranged, so that the pedal arm can be operated easily and intuitively by a user.

[0050] For example, the housing may be designed to have a stop-damping element, which is made of an elastic material, with the pedal arm bearing against this element in its first position. This advantageously reduces noise and mechanical stress on the housing further, in addition to the damping element itself, when the pedal arm strikes the housing on its way to the first position. It also increases the housing's service life. Finally, it advantageously reduces the transmission of vibrations or other haptically perceptible mechanical influences from the housing to the pedal arm that would be unpleasant for the operator. R. 414799

[0051] - 9 -

[0052] For example, the piston or plunger can be permanently connected to the pedal arm or the housing (Oe according to the coupling alternative). This advantageously ensures a particularly safe, durable, and reliable damping function.

[0053] For example, the piston or plunger can be connected to the pedal arm (second coupling alternative) or the housing (first coupling alternative) by means of a pin or a pin, or by means of a clip connection or the like. The connection can be located, for example, at an end opposite the free end, e.g., another free end, and / or near or in the area of ​​the bearing section. The piston can, for example, have a connecting element projecting from the actual piston surface towards the pedal arm, e.g., a type of rod or plunger. It can be provided, for example, that the connection of the piston to the pedal arm or the housing takes place in a section of the connecting element or plunger. The connecting element or plunger of the piston can, for example, be received or mounted in a receiving section, a receiving recess, or a coupling recess of the pedal arm or the housing.

[0054] In other embodiments, the piston or the plunger can merely rest against the housing or the pedal arm (Qe according to coupling alternative) and not be fixed to it.

[0055] Alternatively or additionally, it is provided that the piston is pressed against the pedal arm or the housing, for example by means of a spring element, particularly one located in the piston housing. This advantageously results in a particularly simple, cost-effective, reliable and easy-to-assemble coupling between the piston and the pedal arm or housing.

[0056] The spring element can be located inside or outside the piston housing, or partially inside the piston housing. It can be designed as a tension spring or a compression spring. A single spring element or multiple spring elements can be used.

[0057] An optional connecting element for the piston or plunger can be received or mounted, for example, in a receiving section of the pedal arm, such as a receiving recess or coupling recess of the pedal arm. R. 414799

[0058] - 10 -

[0059] It may be provided, for example, that the piston or the plunger rests against the housing or the pedal arm (Oe according to coupling alternative); in particular, it may be provided that it is not fixed to the housing or the pedal arm.

[0060] For example, the damping opening can be provided with a cross-sectional area in the range of 1% to 15%, preferably 1.5% to 8%, and particularly preferably 2% to 6% of the piston volume boundary area. This advantageously results in particularly favorable damping.

[0061] For example, the fluid can be a gas, particularly air, nitrogen, argon, or helium. This allows for a particularly elastic damping effect, as the gas can be compressed before it flows in or out through the damping orifice.

[0062] Alternatively or additionally, the fluid can be a liquid, in particular an oil (e.g., silicone oil, mineral oil, hydraulic oil, or the like) or water. This advantageously allows for particularly reliable and strong damping, even with a larger damping opening. This is because, unlike a gas, a liquid is only slightly compressible, if at all.

[0063] A damping element can be provided that uses both a gas and a liquid as the fluid. For example, damping can be achieved by a gas or a liquid in different positions, allowing the damping characteristics to be adapted to the specific application (e.g., little damping at positions far from the first position, strong damping near the first position).

[0064] The term "encompass" is used synonymously with the term "exhibit" unless otherwise stated.

[0065] In a further training course, it is stipulated that the retaining element is mounted in the accelerator pedal assembly in a way that allows it to pivot or rotate.

[0066] This advantageously prevents lateral forces acting on the damping element or the plunger. It also advantageously creates a functional separation: the retaining element can be used to hold or support the damper. R. 414799

[0067] - 11 - funging element and optimized for pivoting. For this purpose, for example, particularly low-friction or smooth materials can be used and / or large or small axles or bearing mounts can be provided that are particularly stable or cause low friction or wear. The damping element can be optimized for its damping function independently, or standard elements can be used, which is very cost-effective. It can be advantageously achieved that the plunger or the damping element exerts essentially only axial forces (along the longitudinal axis) on the housing or on the pedal arm along the entire displacement path of the pedal arm from the first position (e.g., starting or rest position) to the second position (e.g., end position, e.g., fully depressed position) and back (and thus damage or...Wear and tear of the plunger, housing or pedal arm) is avoided.

[0068] It may be provided, for example, that the holding element is pivotable in an angle range of 5° to 30°, preferably in an angle range of 10° to 25°, e.g. by 10° or by 15° or by 20° or by 25°.

[0069] It may be provided, for example, that the retaining element is mounted so as to pivot or rotate about an axis or axis of rotation that runs perpendicular to the longitudinal axis (in a radial direction) and / or that runs essentially perpendicular to a displacement plane of the pedal arm during its movement from the first position to the second position.

[0070] The retaining element can be mounted, for example, on or in the pedal arm so that it can pivot or rotate (first coupling alternative). Alternatively, the retaining element can be mounted, for example, on or in the housing so that it can pivot or rotate (second coupling alternative).

[0071] The axis of rotation of the retaining element can, for example, be located in a region of the retaining element that is 30% to 70%, preferably 40% to 60%, of the longitudinal extent of the retaining element away from a base of the retaining element. Alternatively, the axis of rotation can be located in a region of the retaining element that lies within 25% to 75%, preferably 30% to 70%, of the total longitudinal extent of the retaining element and damping element along the longitudinal axis, the total extent being referenced to the state of the pedal arm in which the plunger projects furthest from the damping element. This advantageously prevents the pivoting from resulting in particularly large pivot paths at the distal ends of the retaining element. R. 414799

[0072] - 12 - and / or of the damping element compared to a situation in which the axis of rotation is located at a distal end of the retaining element, in particular at the bottom of the retaining element.

[0073] Preferably, the axis of rotation of the retaining element is (significantly) spaced away from the axis of rotation of the pedal arm. The axis of rotation and the axis of rotation can, for example, run parallel to each other.

[0074] In a further development, it is provided that the pedal arm has a pedal arm recess, whereby the retaining element can be mounted through the pedal arm recess. This further development can, for example, be preferably provided for or in the first coupling alternative.

[0075] This makes it particularly easy to mount the retaining element in or on the pedal arm.

[0076] The pedal arm recess or pedal arm mounting opening can, for example, point in the direction of the first position or be open, and in particular, be open exclusively in this direction. This advantageously ensures that the retaining element is held securely during operation, especially through the coupling of the plunger to the housing (first coupling alternative). The retaining element and damping element can thus be clamped securely between the pedal arm and the housing, and the clamping force always presses the retaining element into the pedal arm recess or pedal arm mounting opening. Therefore, fixing the retaining element to or within the pedal arm with fasteners is not strictly necessary, allowing for particularly simple and cost-effective assembly and disassembly (e.g., during maintenance). It is understood that fixing with fasteners can be provided as an option.

[0077] Alternatively, the housing may be provided with a housing recess, whereby the retaining element can be mounted in the housing through the housing recess.

[0078] This further training can, for example, be preferably provided for the second coupling alternative or in the case of the second coupling alternative.

[0079] This allows the retaining element to be mounted in or on the housing particularly easily. R. 414799

[0080] - 13 -

[0081] The housing recess can, for example, point towards the pedal arm or be open, and in particular, be open exclusively in this direction. This advantageously ensures that the retaining element is held securely during operation, especially through the coupling of the plunger to the pedal arm (second coupling alternative). The retaining element and damping element can thus be clamped securely between the pedal arm and the housing, and the clamping force always presses the retaining element into the housing recess or mounting opening. Therefore, fixing the retaining element to or within the housing with fasteners is not strictly necessary, allowing for particularly simple and cost-effective assembly and disassembly (e.g., during maintenance). It is understood that fixing with fasteners can be provided as an option.

[0082] In a further development, it is provided that the retaining element has (at least) one axle pin, wherein the pedal arm (especially in the first coupling alternative) or the housing (especially in the second coupling alternative) has a bearing receptacle, wherein the retaining element is pivotably mounted in the bearing receptacle by means of the axle pin.

[0083] This allows the retaining element to be pivoted using particularly simple means. Furthermore, this advantageously enables particularly simple mounting of the retaining element on or in the pedal arm (especially in the first coupling alternative) or on or in the housing (especially in the second coupling alternative). This is because the retaining element can simply be inserted into the bearing receptacle. For example, no additional shaft or axle needs to be mounted in the pedal arm or housing. Another advantage is that no notch or material weakening of the retaining element is necessary (as would be required in the case of a bearing opening in the retaining element), so that the retaining element can be designed with a relatively thin wall thickness.The retaining element can also be particularly advantageously designed to be especially short along its longitudinal axis if the pivot pin(s) are formed on a side wall of the retaining element and not at a distal end. In this case, the pedal assembly can be advantageously designed to be particularly compact in the direction of actuation.

[0084] The retaining element can be designed to pivot relative to the pedal arm and / or the housing. In other words, it is not rigidly connected to the pedal arm or the housing. R. 414799

[0085] - 14 -

[0086] For example, it can be provided that when the holding element is pivoted, the damping element is also pivoted.

[0087] The pivot pin can, for example, point in a direction perpendicular to the longitudinal axis. It can, for example, project from an outer wall of the retaining element, in particular radially (i.e., essentially transversely to the longitudinal axis) outwards. It is understood that in other embodiments the pivot pin(s) can be arranged at a distal end of the retaining element.

[0088] The retaining element can also have more than one axle journal. For example, it can have two axle journals, which may be located on opposite sides of the retaining element. If two axle journals are provided, they can share a common axis or be arranged along a straight line or axis.

[0089] In a further development, it is provided that the damping element is floatingly mounted along the longitudinal axis between the retaining element and the housing (especially in the first coupling alternative).

[0090] Alternatively, the damping element can be mounted in a floating manner along the longitudinal axis between the retaining element and the pedal arm (especially in the second coupling alternative).

[0091] A "floating" mounting, in this context, means that the damping element is not permanently attached to the retaining element, the housing, or the pedal arm (e.g., by means of a retaining device such as a pin, bolt, screw, or a bonded connection). Instead, the damping element is clamped or braced between the retaining element and the pedal arm or housing (particularly in the axial direction). In this way, it is securely positioned within the pedal assembly, but not permanently fixed to any of the components. It can be released from the retaining element at any time (e.g., by pressing the piston or plunger) and then removed from the pedal assembly.

[0092] This allows for particularly simple, quick, and cost-effective assembly and disassembly (e.g., for repairs). A particularly durable pedal arrangement is provided. Furthermore, the floating La- R. 414799 offers additional advantages.

[0093] - 15 - This allows for simple tolerance compensation, e.g., in the case of manufacturing tolerances, varying thermal expansion, or mechanical influences such as vibrations. This enables a longer service life for the pedal assembly and avoids complex readjustment measures. At the same time, the damping element can be securely positioned or mounted within the pedal assembly.

[0094] In a further development, it is provided that the retaining element has a retaining element interior, wherein the damping element is arranged in the retaining element interior.

[0095] This advantageously results in a particularly secure and stable coupling between the damping element and the retaining element. The transmission of even high forces, especially in a direction perpendicular to the longitudinal axis, is also ensured.

[0096] For example, the piston housing can be arranged inside the retaining element. The piston housing can, for example, be located predominantly inside the retaining element. This advantageously ensures particularly good retention of the damping element in the pedal arm or housing via the retaining element.

[0097] In a further training, it is stipulated that the retaining element is cup-shaped with a retaining element base and a surrounding retaining element side wall.

[0098] This advantageously results in a particularly secure absorption of the forces acting on the damping element and their transmission to the retaining element. Furthermore, this makes it particularly easy and secure to arrange the damping element within the retaining element.

[0099] In a further training, it is stipulated that the retaining element side wall tightly encloses the retaining element with an excess of at most 1 mm or at most 0.5 mm with respect to a damping element outer wall of the damping element.

[0100] This advantageously results in a particularly good coupling between the retaining element and the damping element. Wear, friction, and lateral play are advantageously reduced. This results in a particularly long service life for the pedal assembly and especially for the pairing of the retaining element and the damping element. R. 414799

[0101] - 16 -

[0102] Alternatively or additionally, it may be provided, for example, that a through-opening is formed in the base of the retaining element.

[0103] This advantageously simplifies the installation of the damping element into the (cup-shaped) interior of the retaining element, as the air present inside the retaining element can easily escape through the base of the retaining element when the damping element is inserted. Similarly, removal of the damping element from the interior of the retaining element is also simplified, as there is no need to work against a vacuum when pulling the damping element out. This advantageously facilitates the installation and removal (e.g., in case of repair) of the damping element, for example, even in a pedal assembly already installed in a vehicle, into which the damping element is to be inserted or from which it is to be removed.

[0104] In a further development process, it is stipulated that the plunger has a defined head shape at one free end. The head shape can be selected, for example, from the following group: a spherical segment, in particular a hemisphere; a circular cylinder segment; an ovoid segment; an oval cylinder segment.

[0105] A spherical segment, in particular a hemisphere or a spherical cap with an internal angle of, for example, at least 120°, advantageously enables particularly low-friction operation of the pedal assembly. Not only can forces occurring in the actuation plane of the pedal arm be transmitted effectively, but also lateral forces perpendicular to the actuation plane.

[0106] A circular cylinder segment advantageously enables particularly good guidance or support of the pedal arm essentially along the plane of actuation.

[0107] An ovoid segment can be understood as a segment of a three-dimensional oval (e.g., egg-shaped). This advantageously allows for particularly good adaptation to the specific actuation trajectory of the plunger relative to the pedal arm or housing, thereby reducing friction.

[0108] An oval cylinder segment can, for example, be a segment of a cylinder with an oval cross-section. Like the circular cylinder segment, this shape allows for lateral guidance of the pedal arm, while simultaneously accommodating the specific trajectory of the pedal arm relative to the plunger, or vice versa. R. 414799

[0109] - 17 -

[0110] Furthermore, it is conceivable that the defined head shape is designed as a paraboloid. Depending on the displacement trajectory between the plunger and the pedal arm or housing, this advantageously minimizes the friction of the plunger head.

[0111] In a further development, it is provided that the housing (especially in the first coupling alternative) or the pedal arm (especially in the second coupling alternative) has a coupling recess in which the free end of the plunger is mounted.

[0112] This ensures particularly secure mounting and / or guidance of the plunger on or within the housing or pedal arm. Even in the event of sudden impacts to the pedal assembly, it is advantageously prevented that the plunger remains coupled to the housing or pedal arm. Furthermore, this can advantageously result in particularly low friction between the plunger head and the housing or pedal arm in all positions of the pedal arm.

[0113] It can be advantageous, for example, for the coupling recess to be essentially complementary to the defined head shape. In other words, if, for example, the defined head shape is designed as a spherical segment, the coupling recess can essentially have the shape of a hollow spherical segment with essentially the same diameter. If the defined head shape is designed as a circular cylindrical segment, the coupling recess can, for example, be designed in the manner of a gutter or valley, with essentially the same diameter as the concave circular segment of the coupling recess, etc.

[0114] In a further training course, it is stipulated that the damping element is designed separately from the restoring element.

[0115] This results in a particularly simple, cost-effective, and easy-to-assemble and disassemble damping element with low complexity. A further advantage is the functional separation (especially spatially). The first function is to return the pedal arm to its initial position using the return element. The second function is the damping function, which is intended to prevent the pedal arm from striking the housing hard, for example, when the pedal arm is suddenly released while depressed. This functional separation allows the individual elements (return element, damping element) to be manufactured particularly easily and cost-effectively and to be installed and removed within the pedal assembly. For example, the return element can be, depending on R. 414799

[0116] - 18 -

[0117] The spring element can be designed, or include, depending on the spatial situation and / or requirements, for example, as a coil spring, a helical spring, or a leaf spring, etc. The damping element can always be similar or identical in design, regardless of this optional configuration of the return element.

[0118] It may be provided, for example, that the damping element is not mechanically coupled to the restoring element, and in particular not formed integrally with it in one unit.

[0119] It is understood that the damping element may have a return spring or similar component, for example, to pre-tension the damping element or piston into a predefined position when no force is applied (no external force is exerted). However, such a return spring is not to be understood as the return element described above, which ensures that the pedal arm is always reliably returned to its initial position (regardless of the presence of the damping element).

[0120] In a further development, it is proposed that the return element be formed by (at least) a return spring. This advantageously allows for a particularly simple and cost-effective accelerator pedal arrangement.

[0121] Alternatively or additionally, the return element is provided for by an inner first return spring and an outer second return spring, with the first return spring arranged inside the second return spring. This advantageously creates redundancy in case one of the two return springs fails. Furthermore, this advantageously allows for a specific operating characteristic in which different forces or force characteristics are required to move the pedal arm to a different position, depending on its position.

[0122] It may be provided, for example, that the return spring, or that the first return spring and the second return spring, are designed as helical spring(s). Alternatively or additionally, it may be advantageously provided that the return spring, or that the first return spring and the second return spring, are arranged between a housing base and the pedal arm. R. 414799

[0123] - 19 -

[0124] This allows the return element to be manufactured particularly cost-effectively. Unlike, for example, using a coil spring at the pivot point or the attachment point of the pedal arm, such coil springs can be positioned further away from the pedal arm's pivot point and thus closer to the control element. This allows the lever arm to be adjusted precisely by the location of the return element. The springs can be manufactured more simply, smaller, and cheaper, and assembly is also simpler, for example, because lower spring forces need to be overcome during installation (compared to a spring element at the pivot point). Furthermore, the pedal arm's pivot point or its bearing point can be designed much more simply if no return spring is required there.

[0125] In a further development, it is provided that the accelerator pedal assembly has at least one sensor, in particular at least one rotary angle sensor and / or at least one linear sensor, wherein the at least one sensor detects the position of the pedal arm. This advantageously eliminates the need for mechanical parts such as Bowden cables or hydraulic or pneumatic systems for coupling with the elements to be adjusted (e.g., a brake element, a throttle valve, or a clutch disc, etc.) or advantageously creates redundancy.

[0126] In a further development, it is provided that the accelerator pedal assembly is configured as an electronic accelerator pedal assembly which, in particular, has no mechanical coupling to a brake or clutch, or to a torque-influencing valve or throttle valve. This provides a particularly flexible, cost-effective, and easy-to-install accelerator pedal assembly. Since a mechanical coupling is unnecessary here, the inclusion of the damping element can be particularly advantageous, as no mechanical inertia of components mechanically connected to the accelerator pedal assembly dampens the return movement of the pedal arm towards the first position.

[0127] In a further training program, the accelerator pedal assembly is designed for use as a brake pedal or brake pedal assembly, as a clutch pedal or clutch pedal assembly, or as an accelerator pedal or accelerator pedal assembly. This advantageously provides a particularly reliable, quiet, safe, and easy-to-use brake pedal (e.g., for "brake-by-wire" applications), clutch pedal (e.g., for so-called "e-clutch" applications), and / or accelerator pedal.

[0128] Drawings R. 414799

[0129] - 20 -

[0130] Further features and advantages of the present invention will become apparent to the person skilled in the art from the following description of exemplary embodiments, which, however, are not to be interpreted as limiting the invention, with reference to the accompanying drawings.

[0131] They show

[0132] Figs. 1 a - 1 c: schematic cross-sections through a pedal assembly with a pedal arm in a first position (Fig.

[0133] 1 a), in a second position (Fig. 1 b) and in a third position (P3) lying between the first position and the second position;

[0134] Fig. 2: a schematic cross-section through a pedal arm showing a pivoting range of a retaining element with a fluidically acting damping element arranged therein in the pedal arm;

[0135] Fig. 3: a schematic exploded view of a pedal arm, a retaining element and a fluidic damping element;

[0136] Fig. 4: a schematic cutaway perspective view of a pedal arm with a pivotably mounted retaining element and a fluidically acting damping element arranged in the retaining element;

[0137] Figs. 5a and 5b: perspective views of a defined head shape of a free end of a plunger of a damping element.

[0138] Figures 1a to 5b are described together below.

[0139] Figures 1a and 1b show an accelerator pedal assembly 1 with a housing 2 and a pedal arm 3, which is movable between a first position P1 (see Fig. 1a), which can be, for example, a starting position, and a second position P2. R. 414799

[0140] - 21 -

[0141] (see Fig. 1b), which can, for example, be an end position. An actuating element 4, here in the form of a footplate, is arranged or attached to the pedal arm 3, in particular to a free end 44 of the pedal arm 3. In this embodiment, it can be provided, by way of example, that the pedal arm 3 and the actuating element 4 are formed integrally or as a single piece, although other embodiments are also conceivable in which the actuating element 4 is initially separate and is mounted on the pedal arm 3. The pedal assembly 1 further comprises a return element 5, which pushes the pedal arm 3 into the first position P1 when not under force.

[0142] The return element 5 is here exemplified by an inner first return spring 27 and an outer second return spring 28. The first return spring 27 is arranged here, by way of example, inside the second return spring 28. For illustrative purposes only, the first return spring 27 and the second return spring 28 are each designed as helical springs. They are both arranged between a housing base 26 and the pedal arm 3. The part of the housing base 26 on which the two return springs 26, 27 are arranged or on which they rest can, for example, be detachably connected to the housing 2 or the remaining housing base 26. In this way, the return springs 26, 27 can be particularly easily installed and removed from the housing 2. In other embodiments, the housing base can be formed integrally with the housing 2.

[0143] In principle, it can be provided, for example, that the return element 5 is formed by at least one return spring, in particular by a coil spring arranged between a housing base 26 and the pedal arm 3.

[0144] It is understood that other return elements are also conceivable, e.g., at least one coil spring arranged at a suspension point or pivot point of the pedal arm 3. And / or a design with at least one leaf spring for at least one of the return springs 26, 27 instead of coil springs, etc.

[0145] The accelerator pedal assembly 1 further comprises a retaining element 6, which here by way of example includes or encompasses a retaining element housing 7. The accelerator pedal assembly 1 finally comprises a fluidically acting damping element 8, which is specifically designed separately from the retaining element 6. The damping element 8 has a piston housing 9, here by way of example only a cup-shaped housing, with a longitudinal axis LA (which can define an axial direction A) and a contact in the piston housing along the longitudinal axis LA R. 414799

[0146] - 22 - movably mounted piston 10 with a plunger 11. The retaining element 6 is here exemplarily configured to hold or retain the damping element 8 in the accelerator pedal assembly 1, in particular to hold or retain it securely during operation of the accelerator pedal assembly. The damping element 8 is detachably connected to the retaining element 7, in particular essentially without play with respect to a radial direction R perpendicular to the longitudinal axis LA or to the axial direction A.

[0147] It is provided that the damping element 8 and the retaining element 6 are coupled to the pedal arm 3 on the one hand and to the housing 2 on the other hand, or are in operative connection with them, or are in contact with them, or are in mechanical contact with them.

[0148] This is exemplified in Figures 1a to 4 by coupling the damping element 8, in particular by means of the plunger 11, to the housing 2 and the retaining element 6 to the pedal arm 3. This can be described as the first coupling alternative.

[0149] Alternatively, this can be achieved by coupling the retaining element 6 to the housing 2 and the damping element 8 to the pedal arm 3, in particular by means of the plunger 11. This can be referred to as the second coupling alternative. The second coupling alternative is not shown in the figures.

[0150] In principle, more than one pair of damping element 8 and holding element 6 can be provided. If several of these pairs are present, at least one of these pairs can be provided in the first coupling alternative and at least one of these pairs in the second coupling alternative. It is also possible, in principle, for all pairs to be provided only in the first or only in the second coupling alternative.

[0151] Figure 1c shows an intermediate position P3, which lies between the first position P1 and the second position P2. It can be reached, for example, when pedal arm 3 is partially depressed.

[0152] The damping element 8 is advantageously designed separately from the return element 5. In particular, the damping element 8 is not mechanically coupled to the return element 5 in the form of the two return springs 26, 27. This makes it particularly easy to mount or replace the damping element 8. R. 414799

[0153] - 23 -

[0154] The damping element 8, shown here as an example within the piston housing 9, also includes a spring element 41 (arranged here, by way of example, between a piston housing base of the piston housing 9 and the piston 10). However, this spring element 41 is intended here, by way of example, only to keep the plunger 11 coupled to the housing 2 during a rapid displacement of the pedal arm 3 towards the second position P2. The spring element 41 is not to be considered a return element 5, especially since it exerts a force on the pedal arm 3 in the opposite direction (towards the second position P2) to that of the return element 5.

[0155] The accelerator pedal arrangement 1 here includes, by way of example, at least one sensor 29, in particular at least one rotation angle sensor 30 and / or at least one linear sensor, wherein the at least one sensor 29 detects the position of the pedal arm 3.

[0156] The accelerator pedal arrangement 1 is here exemplified as an electronic accelerator pedal arrangement 1 which in particular has no mechanical coupling to a brake or a clutch or to a valve or throttle valve influencing torque.

[0157] The accelerator pedal arrangement 1 is shown here as an example for use as a brake pedal, whereby in other embodiments use as a clutch pedal or accelerator pedal is also conceivable, but only by way of example.

[0158] The piston 10 of the fluid damping element 8 can be sealed, for example, against the piston housing 9 or a wall 46 of the piston housing 9, here by way of example by a seal (not shown), which here only exemplarily has a cup or hat shape (e.g. with the open end of the cup or hat pointing towards the outlet of the plunger 11, i.e., upwards) and can, for example, be made of an elastic material. The damping element 8 has a damping opening 45, whereby when the pedal arm 3 is moved towards the first position P1 (e.g. from the second position P2 or from the intermediate position P3), a piston volume V of the piston housing 9, limited by the piston 10, is changed, and a compensating volume of fluid to compensate for the volume change flows predominantly through the damping opening 45.In the first position P1, the piston volume V (here: between piston head and piston 10) is given by a first piston volume V1. In the second position P2, the piston volume V is given by a second piston volume. R. 414799.

[0159] - 24 - ben-volume V2 given. If the seal has a cup or hat shape as described above, or is designed as a type of one-way closing check valve, it can be achieved, for example, that a displacement of the pedal arm 3 from the first position P1 towards the second position P2 is not or hardly damped by fluid resistance. This may be desirable, for example, when the pedal arrangement 1 is designed as a brake pedal, since then a full braking maneuver (strong and sudden displacement or depressing of the pedal arm 3 from the first position P1 to the second position P2) is not, or not too much, hindered by the damping element 8. Conversely, when the pedal arm 3 is "snapped" from a depressed position (e.g., by suddenly releasing the actuating element 4, e.g.,From the second position P2 or the third position P3) a fluidic damping effect occurs, since the check valve closes and the fluid can essentially only flow through the damping opening 45 from one volume region (the piston volume V) to the other volume region (the further volume region located above the piston 10). A hard impact of the pedal arm 3 against the housing 2 is prevented.

[0160] It goes without saying that the fluidic damping element 8 can also be constructed differently.

[0161] In the embodiments shown here, the damping opening 45 is provided, for example, in the piston 10. Alternatively or additionally, the damping opening 45 can, for example, be provided in the piston housing 9 (it can then, for example, direct the fluid into a reservoir).

[0162] To prevent the pedal arm 3 from striking the housing hard, the housing 2 here has, by way of example, a stop damping element 40, which in particular has an elastic material, wherein the pedal arm 3 rests against the stop damping element 40 in the first position P1 (see Figs. 1 a and 2).

[0163] The fluid used here could be, for example, a gas, in particular air, nitrogen, argon, or helium. Alternatively, the fluid could be a liquid, in particular oil or water.

[0164] It is also possible in principle to provide a damping element 8 that contains both a gas and a liquid as its fluid. R. 414799

[0165] - 25 -

[0166] By selecting the fluid(s), the damping characteristics of the damping element 8 can be adjusted, for example, depending on the pedal arm position. The temperature and altitude dependency of the damping behavior can also be specifically influenced.

[0167] The retaining element 6 is shown here as an example with an interior retaining element chamber 16. The damping element 8 is shown here only as an example, arranged within the interior retaining element chamber 16. Here, a large or predominant part of the piston housing 9 is arranged within the interior retaining element chamber 16. This allows forces acting radially to the longitudinal axis LA (lateral forces) to be transmitted particularly well from the damping element 8 to the retaining element 6 and vice versa. Furthermore, this advantageously prevents even strong axial and / or radial forces from causing the damping element 8 to break out of the retaining element 6. High stability of the pairing of retaining element 6 and damping element 8 is achieved.

[0168] The retaining element 6 is shown here as an example in a cup shape with a retaining element base 17 and a circumferential retaining element side wall 18. This is particularly evident in Figures 3 and 4. This design enables a particularly secure retention of the damping element 8 within the retaining element 6.

[0169] The retaining element side wall 18 encloses the retaining element 6 with an overhang of at most 1 mm or at most 0.5 mm relative to the damping element outer wall 19 of the damping element 8. This enables high axial and radial load-bearing capacity of the damping element 6 without lateral or radial breakage. It also prevents wobbling or tilting of the damping element 8 within the retaining element 8. The retaining element 6 provides excellent lateral and radial guidance of the damping element 8 without the need for screws or other fasteners.

[0170] A through-opening 20 is formed in the base 17 of the retaining element. This facilitates the assembly and disassembly of the damping element 8 in the retaining element 6. Furthermore, this advantageously prevents a fluid bubble (air or moisture) from forming between the base 17 of the retaining element and the base 47 of the piston housing. Such a bubble could, during operation, for example, due to changing temperatures or air pressure (e.g., driving from sea level to mountains), cause the damping element 8 to be forced out of the retaining element 6 and unintentionally change the pedal angle. R. 414799

[0171] - 26 -

[0172] In the exemplary illustrations in Figures 1a to 4, the damping element 8 is floatingly mounted between the retaining element 6 and the housing 2 (first coupling alternative) when viewed along the longitudinal axis LA. In other words, the damping element 8 is neither fixed to the housing 2 nor to or within the retaining element 6. It clamps itself, for example, between the housing 2 and the base 17 of the retaining element and is guided laterally by the side wall 18 of the retaining element. This advantageously allows for particularly simple assembly and disassembly of the damping element 8 in the accelerator pedal assembly 1.

[0173] In the second coupling alternative, which is not shown here, the damping element 8 can be floatingly mounted along the longitudinal axis LA between the retaining element 6 and the pedal arm 3.

[0174] The plunger 11 has a defined head shape 22 at a free end 21. The head shape 22 can be selected, for example, from the group: a spherical segment 23, in particular a hemisphere; a circular cylinder segment 24; an ovoid segment; an oval cylinder segment; a paraboloid.

[0175] In Figures 1a to 4, the defined head shape 22 is in each case only shown as an example of a circular cylinder segment 24.

[0176] Figure 5a shows an example of a defined head shape 22 as a spherical segment 23 (up to the circumferential line).

[0177] Figure 5b shows an enlarged representation of a defined head shape 22 as a circular cylinder segment 24, as is also provided by way of example in Figures 1a to 4.

[0178] Figures 1a-1c, 2 and 4 show that the housing 2 (here in the first coupling alternative) has a coupling recess 25 in which the free end of the plunger 11 is mounted. This coupling recess 25 is designed here as an example complementary to the defined head shape 22.

[0179] In the second coupling alternative, not shown here, the coupling recess can be provided or formed, for example, in or on pedal arm 3. R. 414799

[0180] - 27 -

[0181] The retaining element 6 is shown here as being pivotable or rotatable in the accelerator pedal assembly 1. In the first coupling alternative shown here, the retaining element is pivotable or rotatable on or in the pedal arm 3. A pivot axis or the rotation axis DA of the retaining element 6 runs, for example, perpendicular to the longitudinal axis LA (in the radial direction R) and / or perpendicular to the actuation plane of the pedal arm 3 on its path from the first position P1 to the second position P2.

[0182] In the second coupling alternative, which is not shown here, the retaining element 3 can be pivotably or rotatably mounted on or in the housing 2.

[0183] Comparing Fig. 1a (first position P1 of the pedal arm 3), Fig. 1c (intermediate position P3) and Fig. 1b (second position P2) clearly shows that the retaining element 6, and thus also the damping element 8 and the longitudinal axis LA, assume different angles, especially relative to the pedal arm 3, while the orientation relative to the housing 2 remains almost constant in this example.

[0184] Figure 2 clearly illustrates the pivotability of the retaining element 8 relative to, or within, the pedal arm 3. A pivoting range of 20° is shown, in 10° increments around a central position (the longitudinal axes of the retaining element 6 that can be pivoted are labeled LA' and LA''). In other embodiments, a pivoting range around the axis of rotation DA of, for example, up to 35° (+ / - 17.5°) can be achieved.

[0185] As can be clearly seen in Figures 1a to 1c, the plunger 11 of the damping element 8 always strikes the housing 2 in essentially the same orientation, regardless of the rotation of the pedal arm 3. In this way, the force applied to the plunger 11 is preferably applied axially in all positions of the pedal arm, while avoiding lateral forces as much as possible. This is particularly advantageous when the pedal arm 3 is suddenly released into a position other than the first position P1, since only slight or no lateral or radial forces act on the plunger 11 when it is suddenly pushed back. If the retaining element 6 (and thus the damping element 8) were not pivotably mounted but rigidly installed in the pedal arm 3, the damping element 8 would describe a circular path with its upper end, and the plunger 11 would be subjected to lateral forces when snapping back towards the first position P1.The pivotable mounting of the retaining element 6 ensures that the R. 414799 remains in place.

[0186] - 28 -

[0187] The direction of force acting on the plunger 11 is essentially axial and its contact point with the housing 2 is approximately constant.

[0188] Figures 1a to 4 illustrate that the axis of rotation DA of the retaining element 6 does not pass through one of its distal ends (when viewed along the longitudinal axis LA). Instead, it runs at a considerable distance from the base 17 of the retaining element. Starting from the base 17, it extends, for example, in a region between 35% and 75% of the longitudinal extent of the retaining element 6. This advantageously results in a shorter pivot path for the distal ends of the retaining element 6 and the damping element 8 than would be the case if the axis of rotation DA passed through the lower distal end of the retaining element 6 (the end furthest from the plunger 11). Consequently, the pedal arm recess 12, described below, can be narrower (viewed from left to right in Figures 1a to 1c).

[0189] The axis of rotation DA of the retaining element 6 runs here, with reference to the longitudinal axis LA or a thickness of the pedal arm, for example approximately in the middle of the pedal arm 3 (e.g. in a range of 35% to 65% of the thickness).

[0190] The axis of rotation DA of the retaining element 6 is spaced apart from the axis of rotation of the pedal arm 3. This distance is, for example, approximately 40% to 60% of the longitudinal extent of the retaining element 6. It can be, for example, at least 0.5 cm or at least 1 cm. The axis of rotation of the pedal arm 3 passes through a bearing axis 42, which is formed on the housing 2. The pedal arm 3 has a bearing opening 43, which is inserted or mounted onto the bearing axis 42 and can rotate about the bearing axis 42. The axis of rotation of the pedal arm 3 and the axis of rotation DA are parallel to each other.

[0191] Figures 3 and 4 clearly show that the retaining element 6 has a pivot pin 14 (here, by way of example, two pivot pins 14 are shown, which are formed on opposite sides of the retaining element housing 7 or of retaining element side walls 18). The two pivot pins 14 project radially R (perpendicular to the longitudinal axis A) from the retaining element 6.

[0192] In the first coupling alternative shown here, the pedal arm 3 has a bearing receptacle 15, shown here by way of example in the pedal arm 3. In the second coupling alternative, not shown here, the bearing receptacle can be arranged in or on the housing 2. R. 414799

[0193] - 29 -

[0194] The retaining element 6 is pivotably mounted in the bearing receptacle 15 by means of the axle pin 14 (here: by means of the two axle pins 14). As can be clearly seen in the combined view of Figs. 1a to 1c, the retaining element 6 is designed and mounted to pivot relative to the pedal arm 3 and the housing 2.

[0195] It is provided, for example, that when the retaining element 6 is pivoted, the damping element 8 is also pivoted.

[0196] Figures 3 and 4 clearly show that the pedal arm 3 has a pedal arm recess 12, which points specifically towards the first position P1 (first coupling alternative). The retaining element 6 can be easily, quickly, and securely mounted in the pedal arm 3 through the pedal arm recess 12. It can be removed from the pedal arm 3 just as easily and quickly through the pedal arm recess 12. Since the pedal arm recess 12 here, by way of example, points only or exclusively towards the first position, i.e., in or parallel to the actuation plane of the pedal arm 3, the retaining element 6 is particularly securely secured against loss in the pedal assembly 1 during operation (compared to a lateral pedal arm recess).

[0197] In the second coupling alternative, not shown in the figure, the housing 2 may have a recess, particularly one pointing towards the pedal arm 3. It may be provided, by way of example, that the retaining element 6 can be mounted in the housing 2 through this recess.

[0198] It is understood that the pedal arrangement need not only have a single pair of retaining element 6 and damping element 8. For example, a pedal arrangement may be provided in which more than one such pair is provided. It may also be provided, for example, that (at least) one pair of retaining element 6 and damping element 8 is formed in the first coupling alternative and (at least) one pair in the second coupling alternative.

[0199] In other alternatives, the damping element 8 can be designed without a spring element 41.

[0200] In other alternatives, the spring element 41 of the damping element 8 can be located, for example, between the free end 21 or the defined head shape 22 of the plunger R. 414799

[0201] - 30 -

[0202] 11 and the piston housing 9. Or more than one spring element 41 can be arranged in or on the piston housing 9.

[0203] The retaining element 6 can, for example, have a longitudinal extent between 20 mm and 70 mm along the longitudinal axis LA. It can, for example, have a circular cross-section transverse to the longitudinal axis LA. The interior space 16 of the retaining element can, for example, have a diameter between 10 mm and 40 mm. It can, for example, be provided that the retaining element 6 and / or the area of ​​the defined head shape 22 of the plunger has a material that is predominantly or entirely composed of a material selected from the group consisting of: polybutylene terephthalate (PBT), polyoxymethylene (POM), with or without glass fiber filling.

[0204] This can advantageously result in particularly low friction and / or particularly low abrasion.

Claims

R. 414799 - 31 - 1. Accelerator pedal arrangement (1), comprising -- a case (2); -- a pedal arm (3) that can be moved between a first position (P1) and a second position (P2), to which in particular an actuating element (4) is attached; - a return element (5) that pushes the pedal arm (3) into the first position (P1) when not under force; - a retaining element (6), in particular with a retaining element housing (7); - a fluidic damping element (8), which is in particular designed separately from the retaining element (6); comprising the damping element (8): - a piston housing (9), in particular a cup-shaped one, with a longitudinal axis (LA); - a piston (10) movably mounted in the piston housing along the longitudinal axis (LA) with a plunger (11); wherein the retaining element (6) is in particular configured to hold or retain the damping element (8) in the accelerator pedal assembly (1), wherein the damping element (8) is detachably connected to the retaining element (7), in particular essentially without play with respect to a radial direction (R) perpendicular to the longitudinal axis (LA) or to an axial direction (A), wherein - the damping element (8), in particular by means of the plunger (11), is coupled to the housing (2) and the retaining element (6) is coupled to the pedal arm (3), or - the retaining element (6) is coupled to the housing (2) and the damping element (8) is coupled to the pedal arm (3), in particular by means of the plunger (11). R. 414799 - 32 - 2. Accelerator pedal assembly (1) according to the preceding claim, wherein the retaining element (6) is pivotably or rotatably mounted in the accelerator pedal assembly (1), in particular on or in the pedal arm (3) or on or in the housing (2).

3. Accelerator pedal arrangement (1) according to one of the preceding claims, wherein the pedal arm (3) has a pedal arm recess (12) which is directed in particular towards the first position (P1), wherein the retaining element (6) can be mounted in the pedal arm (3) through the pedal arm recess (12), or wherein the housing (2) has a housing recess (13) which is directed in particular towards the pedal arm (3), wherein the retaining element (6) can be mounted in the housing (2) through the housing recess (13).

4. Accelerator pedal arrangement (1) according to one of the preceding claims, wherein the retaining element (6) has an axle pin (14), wherein the pedal arm (3) or the housing (2) has a bearing receptacle (15), wherein the retaining element (6) is pivotably mounted in the bearing receptacle (15) by means of the axle pin (14), in particular pivotable relative to the pedal arm (3) and / or to the housing (2), in particular wherein when the retaining element (6) is pivoted, the damping element (8) is also pivoted.

5. Accelerator pedal arrangement according to one of the preceding claims, wherein the damping element (8) is floatingly mounted along the longitudinal axis (LA) between the retaining element (6) and - the housing (2), or - the pedal arm (3).

6. Accelerator pedal arrangement (1) according to one of the preceding claims, wherein the retaining element (6) has a retaining element interior (16), wherein the damping element (8) is arranged in the retaining element interior (16), R. 414799 - 33 - in particular wherein the piston housing (9) is arranged in the retaining element interior (16).

7. Accelerator pedal arrangement (1) according to the preceding claim, wherein the retaining element (6) is cup-shaped with a retaining element base (17) and a circumferential retaining element side wall (18).

8. Accelerator pedal arrangement (1) according to the preceding claim, wherein the retaining element side wall (18) tightly surrounds the retaining element (6) with an excess of at most 1 mm or at most 0.5 mm with respect to a damping element outer wall (19) of the damping element (8), and / or wherein a through-opening (20) is formed in the retaining element base (17).

9. Accelerator pedal arrangement (1) according to one of the preceding claims, wherein the plunger (11) has a defined head shape (22) at a free end (21), wherein the head shape (22) is in particular selected from the group: a spherical segment (23), in particular a hemisphere; a circular cylinder segment (24); an ovoid segment; an oval cylinder segment.

10. Accelerator pedal arrangement (1) according to the preceding claim, wherein the housing (2) or the pedal arm (3) has a coupling recess (25) in which the free end of the plunger (11) is mounted and which is designed in particular to be complementary to the defined head shape (22).

11. Accelerator pedal arrangement (1) according to one of the preceding claims, wherein the damping element (8) is formed separately from the return element (5), in particular wherein the damping element (8) is not mechanically coupled to the return element (5).

12. Accelerator pedal arrangement (1) according to one of the preceding claims, wherein the return element (5) is formed by at least one return spring, which is arranged in particular between a housing base (26) and the pedal arm (3) and / or is designed as a coil spring, R. 414799 - 34 - or wherein the return element (5) is formed by an inner first return spring (27) and an outer second return spring (28), wherein the first return spring (27) is arranged inside the second return spring (28), wherein in particular the first return spring (27) and the second return spring (28) are designed as helical springs and / or are arranged between a housing base (26) and the pedal arm (3).

13. Accelerator pedal arrangement (1) according to one of the preceding claims, wherein the accelerator pedal arrangement (1) has at least one sensor (29), in particular at least one rotation angle sensor (30) and / or at least one linear sensor, wherein the at least one sensor (29) detects the position of the pedal arm (3).

14. Accelerator pedal arrangement (1) according to the preceding claim, wherein the accelerator pedal arrangement (1) is configured as an electronic accelerator pedal arrangement (1) which in particular does not have a mechanical coupling to a brake or a clutch or to a torque-influencing valve or a throttle valve.

15. Accelerator pedal arrangement (1) according to any of the preceding claims, wherein the accelerator pedal arrangement (1) is configured for use as a brake pedal or as a clutch pedal or as an accelerator pedal.

Images