Pedal device

Abstract

The invention relates to a pedal device, comprising a housing (2), a bearing element (3), a pedal (4) which is displaceably guided on the bearing element (3) in an axial direction (x), a first spring means (5) which is connected to the bearing element (3) and the pedal (4) and which can be displaced in the axial direction (x) relative to the bearing element (3) against the spring force of the first spring means, the pedal device further comprises a first position detection device (6), by means of which a current axial position of the pedal (4) can be detected and at least one first position signal (S1) characterizing said position can be provided, a second spring means (13) connected to the housing (2) and to the bearing element (3), and a second position detection device (14), by means of which a second position signal (S1) characterizing said position can be provided. The bearing element (3) can be moved in the axial direction (x) relative to the housing (2) against the spring force of a second spring means, a current axial position of the bearing element (3) can be detected by means of a second position detection device, and at least one second position signal (S2) characterizing said position can be provided.

Description

Technical Field

[0001] The present invention relates to a pedal device having a housing, a support element, a pedal guided displaceably along an axial direction at the support element, and a first spring device connected to the support element and the pedal. The pedal can move axially relative to the support element against the spring force of the first spring device. The pedal device further has a first position detection device by means of which the current axial position of the pedal, in particular the current axial position relative to the housing, can be detected and at least one first position signal characterizing this position can be provided. Background Art

[0002] DE 198 36 691 A1 discloses a pedal device for an electrically operable motor vehicle brake, having a pedal body displaceable translationally along an actuation direction, which is acted upon by the force of a spring as a return device, which spring acts against the operating direction and preferably has a linear characteristic curve. The pedal body has a abutting device which converts at least one linearly increasing operating stroke increment into a progressive spring stroke increment and applies it to the abutting spring, wherein a cam having a defined non-linear cam profile is provided as the abutting device. The end of the pedal body on the foot side includes a thickened cover plate to which a shaft is connected, and the shaft is loaded by a return spring at its end.

[0003] The disadvantage of this solution is that it is not possible to automatically identify a jammed pedal or a defect in the elastic structure of the pedal, such as a broken spring.

[0004] Based on this, the technical problem to be solved by the present invention lies particularly in providing a pedal device by means of which defects in the elastic structure and / or a jammed pedal can be automatically detected. Summary of the Invention

[0005] According to the present invention, the above technical problem is solved by the pedal device according to claim 1. Preferred refinements of the present invention are given in the dependent claims and the following description.

[0006] A pedal device having a housing, a support element, a pedal that can be guided displaceably along an axial direction on the support element, a first spring device connected to the support element and the pedal, the pedal being able to move axially relative to the support element against the spring force of the first spring device, the pedal device further having a first position detection device by means of which the current axial position of the pedal, in particular the current axial position relative to the housing, can be detected and at least one first position signal characterizing this position can be provided. According to the invention, the pedal device is improved in particular by a second spring device and a second position detection device connected to the housing and the support element, the support element being able to move axially relative to the housing against the spring force of the second spring device, and by means of the second position detection device the current axial position of the support element, in particular the current axial position relative to the housing, can be detected and at least one second position signal characterizing this position can be provided.

[0007] If there is a defect in the elastic structure of the pedal or the pedal is jammed, the axial positions of the pedal and the support element can be detected by means of the position detection device, and these axial positions do not occur simultaneously when the pedal device is intact. Thus, defects in the elastic structure and / or jamming of the pedal can be detected by analyzing the position signals.

[0008] The preferred axial position of the pedal that occurs when the pedal device is not operated is particularly referred to as the pedal rest position. The preferred axial position of the support element that occurs when the pedal device is not operated is particularly referred to as the support element rest position.

[0009] The two spring devices are preferably connected in series, particularly in the case of connecting the support element in the middle. Preferably, the pedal is elastically connected to the housing by means of the series connection structure of the two spring devices or one of them. Advantageously, the pedal can move axially relative to the housing against the spring force of the series connection structure of the two spring devices or one of them, particularly starting from the rest position of the pedal or one of them. The support element can move axially relative to the housing against the spring force of the second spring device, particularly starting from the rest position of the support element or one of them. The pedal can, for example, move axially relative to the support element against the spring force of the first spring device starting from the relative rest position. Preferably, the first spring device can be elastically deformed along the axial direction particularly by an axial operation of the pedal. Preferably, the second spring device can be elastically deformed along the axial direction particularly by an axial operation of the pedal and / or the support element.

[0010] Preferably, the current axial position of the pedal relative to the housing can be detected by means of a first position detection device. The first position signal particularly characterizes this position of the pedal and / or the current axial travel of the pedal relative to the said or a pedal rest position. The first position signal is advantageously an electrical signal. Preferably, the current axial position of the support element relative to the housing can be detected by means of a second position detection device. The second position signal particularly characterizes this position of the support element and / or the current axial travel of the support element relative to the said or a support element rest position. The second position signal is advantageously an electrical signal. The pedal device is preferably assigned an axial longitudinal axis extending in the axial direction. The longitudinal axis particularly extends centrally through the pedal and / or centrally through the support element and / or centrally through each spring device and / or centrally through the housing. Preferably, an axial operating force acting on the pedal and located on the longitudinal axis does not cause a torque acting on the pedal and / or the support element, in particular a torque relative to the housing. The pedal can advantageously be displaced axially relative to the support element. A direction extending transversely to the axial direction and / or transversely to the longitudinal axis or any direction is particularly referred to as the radial direction. A direction extending around the longitudinal axis is preferably referred to as the circumferential direction.

[0011] According to one design, the pedal has an operating section, preferably arranged externally, especially on the end side, of the support element and a guide section preferably extending axially away from the operating section. Preferably, an axial guide hole is provided in the support element, and the guide section extends into and / or through this axial guide hole. Preferably, the pedal can thus be guided displaceably axially at the support element. The guide section advantageously extends in the axial direction, preferably straight. The longitudinal axis particularly extends centrally through the guide section and / or centrally through the guide hole. The operating section is made of, for example, plastic and / or metal. The operating section particularly forms a rigid body. The guide section is made of, for example, plastic and / or metal. The guide section particularly forms a rigid body. The guide section is, for example, cylindrically shaped, especially at least regionally cylindrically shaped, and / or the guide section has, for example, a cylindrical outer peripheral surface. The operating section is advantageously rigidly connected to the guide section. The operating section is particularly arranged outside the housing.

[0012] Preferably, the operating section has dimensions that are at least regionally larger in the lateral direction than the guiding section and / or the guiding hole and / or the supporting element, especially in relation to the axial direction. Preferably, the operating section is at least regionally plate-shaped. The operating section is, for example, a pedal or includes a pedal. The operating section and / or the pedal plate is advantageously arranged at the preferably free end of the pedal, especially facing away from the housing and / or the supporting element. A pedal cover, preferably made of an elastomer, is located at the operating section and / or the pedal plate. The pedal cover advantageously covers the side or end side of the operating section and / or the pedal plate that faces away from the housing and / or the supporting element and / or the guiding section. The pedal is made of, for example, plastic and / or metal. The pedal especially forms a rigid body.

[0013] The guiding hole is preferably a through-hole. The guiding section especially extends through the guiding hole or the through-hole. Preferably, the guiding section projects from the guiding hole in an end region on the side of the supporting element facing away from the operating section. Advantageously, the end region of the guiding section includes or forms a locking device by means of which the pedal and / or the guiding section is axially supported on the supporting element and / or can be axially supported on the supporting element. The locking device preferably has dimensions that are at least regionally larger than the guiding hole in the direction transverse to the axial direction. For example, the locking device forms or includes at least one stop that preferably projects in a direction transverse to the axial direction. For example, the locking device determines or influences the said or one relative rest position of the pedal with respect to the supporting element and / or the said or one pedal rest position. The supporting element is made of, for example, plastic and / or metal. The supporting element especially forms a rigid body. The supporting element preferably extends or extends straight along the axial direction. The supporting element is especially at least regionally designed, for example, as a cylinder or a hollow cylinder, and / or the supporting element has, for example, a cylindrical outer peripheral surface.

[0014] The first spring device is preferably arranged between the pedal and the supporting element. The first spring device is especially preferably arranged axially between the operating section and the supporting element. Preferably, the first spring device is axially supported on both the supporting element and the pedal. The first spring device is especially axially supported on both the supporting element and the operating section. The pedal and / or the guiding section advantageously extend through the first spring device. Preferably, the first spring device is one or at least one compression spring or includes one or at least one compression spring. For example, the first spring device is or includes one or at least one helical spring. Preferably, the pedal and / or the operating section are elastically supported on the supporting element by means of the first spring device, especially in the axial direction.

[0015] According to an extended design, at least one spring device is pre-tensioned in the axial direction. The first spring device is preferably pre-tensioned in the axial direction. Thus, for example, the supporting element can be made to move together with the pedal especially over an axial distance by operating the pedal, and the pedal moves relative to the supporting element only when the pre-tensioning force is exceeded. Alternatively, for example, a second spring device is pre-tensioned in the axial direction.

[0016] The second spring device is preferably arranged in the housing. Preferably, the support element can be guided to move axially through the second spring device, in particular guided at or in the housing.

[0017] For example, the mobility of the support element, in particular the mobility through the second spring device, is preferably restricted to only one dimension relative to the housing. This dimension is in particular given by the axial direction. For example, the mobility of the pedal, in particular the mobility through the support element and / or through the second spring device, is preferably restricted to only one dimension relative to the housing and / or the support element. This dimension is in particular given by the axial direction.

[0018] According to one design, the second spring device includes one or more, in particular flat, leaf springs that are oriented transversely to the axial direction, are penetrated by the support element, and elastically support the support element, in particular along the axial direction, on the housing. The number of leaf springs is preferably two or at least two. In particular, each leaf spring is flat. The leaf springs are preferably constructed identically. Each leaf spring advantageously lies in or extends in a leaf spring plane, which preferably extends transversely to the axial direction, particularly in an untensioned state. By means of the leaf springs, for example, a small elastic axial movement path of the support element relative to the housing can be achieved. For example, the maximum and / or free spring travel of the second spring device and / or the leaf springs is 3 mm, 5 mm or from 3 mm to 5 mm. Each leaf spring is preferably made of metal, in particular spring steel. Alternatively, each leaf spring is made of plastic, for example. Each leaf spring preferably has a central through-hole through which the support element in particular extends.

[0019] Each leaf spring is advantageously penetrated by the support element in such a way that the support element extends through the central through-hole of the leaf spring. For example, each leaf spring forms a spring washer. The support element is preferably elastically supported at the housing by means of the second spring device and / or by means of the leaf springs, in particular along the axial direction.

[0020] The leaf springs are preferably connected in parallel. Preferably, the support element is elastically connected to the housing by means of the said or one parallel connection structure of the leaf springs. Advantageously, the support element can move axially relative to the housing against the spring force of the said or one parallel connection structure of the leaf springs, in particular starting from the said or one rest position of the support element.

[0021] The leaf springs are preferably arranged at distances from one another successively in the axial direction. Thereby, in particular, an axial guidance of the support element can be achieved by means of the second spring device. Preferably, each leaf spring has a plurality of, in particular three or at least three, spring strips, which are preferably spaced apart and / or separated from one another at least regionally along the circumferential direction, and which are arranged preferably uniformly distributed around the support element. The spring strips of each leaf spring advantageously extend or stretch transversely to the axial direction, in particular between the support element and the housing, and / or extend or stretch from the support element to the housing. The spring strips are also referred to as spring leaves, for example. The spring strips of each leaf spring extend or stretch in particular in its leaf spring plane or the corresponding leaf spring plane. Preferably, the support element is elastically supported on the housing by means of the spring strips or, in the case of an intermediate connection of the spring strips, preferably at a radial distance from the support element, in particular in the axial direction. Thereby, for example, the support element is elastically supported on the housing preferably in the axial direction by means of the second spring device and / or by means of the leaf springs.

[0022] Each spring strip preferably has an outer spring strip end and / or a free spring strip end, in particular facing away from the support element and / or facing the housing, which is in particular a radially outer spring strip end. Each leaf spring is fixed, for example, at or in the housing by means of its outer spring strip end and / or free spring strip end. Each spring strip preferably has an inner spring strip end, in particular facing the support element and / or facing away from the housing, which is in particular a radially inner spring strip end. Each leaf spring is fixed, for example, at the support element by means of its inner spring strip end.

[0023] Preferably, each leaf spring has an outer frame, which is fixedly connected in particular to the spring strips of the leaf spring and / or to the outer spring strip ends and / or free spring strip ends of the leaf spring. The spring strips of each leaf spring preferably extend from the outer frame of the leaf spring in the direction of the support element. The outer frame of each leaf spring is annular or a ring and / or is also referred to as an outer ring, for example. Preferably, each leaf spring is fixed at the housing, in particular at its outer circumference and / or by means of its outer frame. Each leaf spring engages, in particular at its outer circumference and / or on the outer circumferential side and / or by means of its outer frame, in one or at least one groove provided at the inner circumference of the housing, which groove is preferably an annular groove. Each leaf spring and / or the outer frame of each leaf spring preferably has a circular and / or round outer circumferential profile.

[0024] Each leaf spring preferably has an inner frame that is fixedly connected, in particular, to the spring slats and / or inner spring slats of the leaf spring. The inner frame of each leaf spring particularly defines a central through-hole of the leaf spring. The inner frame advantageously surrounds or encloses a support element. The support element particularly extends through the inner frame. For example, the inner frame of each leaf spring is penetrated by the support element. Preferably, the spring slats of each leaf spring extend from its inner frame in the direction towards the housing and / or in the direction towards the corresponding outer frame. The spring slats advantageously surround the inner frame and are preferably arranged evenly distributed. The inner frame of each leaf spring is particularly annular or a ring and is also referred to as an inner ring, for example. Each leaf spring is advantageously fixedly fitted, through its inner frame, onto a support element that particularly passes through the inner frame. Preferably, each leaf spring is fixed, in particular, at its inner circumference and / or through its inner frame, at the support element. Each leaf spring advantageously engages, at its inner circumference and / or through its inner frame, into one or at least one groove provided at the outer circumference of the support element, and the groove is preferably an annular groove. Each leaf spring and / or the inner frame of each leaf spring preferably has a circular and / or round inner circumferential profile.

[0025] The outer frame of each leaf spring preferably advantageously surrounds or encloses the inner frame of the leaf spring, preferably at a radial distance, and preferably, the spring slats of each leaf spring extend from the inner frame of the leaf spring to the outer frame of the leaf spring.

[0026] Preferably, each spring slat or each spring slat of each leaf spring is bent and / or arched and / or curved, for example, once or multiple times, or extends in a bent and / or arched and / or curved manner, in particular, within the leaf spring plane of the leaf spring. Preferably, each spring slat or each spring slat of each leaf spring is bent back and forth and / or S-shaped, in particular, within the leaf spring plane of the leaf spring, or extends in a bent-back-and-forth and / or S-shaped manner. With such shaped spring slats, in particular, a linear performance and / or a linear characteristic curve can be achieved. Alternatively, for example, each spring slat or each spring slat of each leaf spring extends straight, in particular, within the leaf spring plane of the leaf spring, transversely to the axial direction. With such straight spring slats, for example, a progressive performance and / or a progressive characteristic curve can be achieved.

[0027] The housing is preferably designed to be at least regionally cylindrical. The housing is, for example, basin-shaped. The housing is made of plastic and / or metal, for example. The housing includes, for example, a preferably cylindrical metal sleeve, and the leaf spring is located in and / or fixed to the metal sleeve, for example. The metal sleeve ensures, in particular, a permanent fixed fit for the leaf spring. The metal sleeve preferably surrounds the leaf spring. The metal sleeve is made of steel or aluminum, for example. Preferably, each leaf spring is fixed to the metal sleeve at its outer circumference and / or via its outer frame. Each leaf spring engages, in particular, at its outer circumference and / or via its outer frame into one or at least one groove provided at the inner circumference of the metal sleeve, which groove is preferably an annular groove. One or more grooves provided at the inner circumference of the metal sleeve are, in particular, one or more grooves provided at the inner circumference of the housing. Advantageously, in addition to the metal sleeve, the housing also includes at least one housing region made of plastic, wherein the housing region made of plastic is preferably fixedly connected to the metal sleeve. The housing region made of plastic preferably includes a plurality of housing parts, which are fixedly connected to each other by fixing devices, for example. The housing forms a rigid body, in particular.

[0028] The position detection device, which is also referred to as a position sensor, preferably includes a sensor, such as a Hall sensor and / or an inductive sensor, for example. Preferably, the sensor is provided at the housing and / or is position-fixed relative to the housing. For example, the first position detection device includes at least one magnet fixed to the pedal and / or the guide section and at least one Hall sensor fixed to the housing. In addition, the second position detection device includes, for example, at least one magnet fixed to the support element and at least one Hall sensor fixed to the housing.

[0029] According to an extended design, an analysis device is provided, which is preferably connected to the position detection device and by means of which the position signal can be analyzed, in particular.

[0030] Preferably, the position signal can be analyzed by the analysis device in such a way that the value of the position signal, in particular the current value, is compared with a preset position signal value or the value of the position signal, in particular the current value, can be compared with a preset position signal value. The preset position signal value can be calculated and / or determined experimentally, for example. The preset position signal value preferably corresponds to the value of the position signal provided by the position detection device when the pedal device is intact, i.e., in particular when the elastic structure is intact and the pedal is not jammed.

[0031] The analysis device includes, for example, an analog computer or a digital computer. Preferably, at least one result signal characterizing the result of the analysis and / or the result of the comparison can be provided by the analysis device. The result signal is advantageously an electrical signal.

[0032] Preferably, the first position detection device and / or the second position detection device is / are connected to the control device, in particular at least indirectly, for example in the case of an intermediate connection of the analysis device, by means of which control device at least one preferably operable and / or controllable vehicle component can be controlled on the basis of the first position signal and / or the second position signal. However, the control device can also be integrated into the analysis device or replace the analysis device. The vehicle component is, for example, a vehicle brake or includes a vehicle brake. The pedal is in particular a brake pedal. The pedal device is preferably provided for a vehicle, in particular a motor vehicle.

[0033] The invention in particular provides the following advantages:

[0034] - Detecting a change in the spring stiffness of one of the spring devices, in particular in the case of a broken spring.

[0035] - Detecting jamming of one of the moving components: jamming of the pedal and the support element.

[0036] - Reducing the likelihood of a single error that causes two moving components (the pedal and the support element) to jam simultaneously. Description of the Drawings

[0037] The invention will be described below with reference to the drawings according to preferred embodiments. In the drawings:

[0038] Figure 1 A schematic cross-sectional view of a pedal device according to one embodiment is shown,

[0039] Figure 2 which shows Figure 1 a top view of one of the leaf springs shown,

[0040] Figure 3 a schematic view of the analysis device is shown, and

[0041] Figure 4 a schematic view of a plurality of measurement curves is shown. Detailed Description

[0042] Figure 1 A schematic cross-sectional view of a pedal device 1 according to one embodiment is shown, which pedal device includes a housing 2, a support element 3, a pedal 4 displaceable axially in the x-direction on the support element 3, a first spring device 5 connected to the support element 3 and the pedal 4, against the spring force of which the pedal 4 can move relative to the support element 3 in the axial direction x, and the pedal device further includes a first position detection device 6 by means of which the current axial position of the pedal 4 relative to the housing 2 can be detected and at least one first position signal S1 characterizing this position can be provided. The first spring device 5 is in particular axially preloaded and is formed, for example, by a helical spring.

[0043] The pedal 4 has an operating section 7, which is especially plate-shaped and arranged outside the support element 3, and a guiding section 8, which is especially rod-shaped and extends axially away from the operating section in the axial direction x. The guiding section extends through an axial guiding hole 9 provided in the support element 3. Here, the guiding section 8 projects from the guiding hole 9 with an end region 10 on the side of the support element 3 facing away from the operating section 7. The end region has a stop 11 projecting transversely to the axial direction x. The guiding section 8 can be axially supported at the support element 3 by means of the stop. Thus, the stop 11 forms a locking device. In addition, a longitudinal axis 12 extending in the axial direction x is assigned to the pedal device 1. The longitudinal axis especially extends centrally through the guiding section 8. The direction extending transversely to the longitudinal axis 12 is especially referred to as the radial direction. In addition, the direction extending around the longitudinal axis 12 is especially referred to as the circumferential direction u.

[0044] The pedal device 1 further includes a second spring device 13 connected to the housing 2 and the support element 3. The support element 3 can be moved relative to the housing 2 against the spring force of the second spring device in the axial direction x. The pedal device further includes a second position detection device 14. By means of the second position detection device, the current axial position of the support element 3 relative to the housing 2 can be detected, and at least one second position signal S2 characterizing this position can be provided.

[0045] The second spring device 13 includes a plurality of, especially two, flat leaf springs 15 and 16 oriented transversely to the axial direction x. The leaf springs are penetrated by the support element 3 and elastically support the support element in the axial direction at the housing 2. The leaf springs are arranged one behind the other and at a distance from each other in the axial direction x. The leaf springs 15 and 16 are preferably constructed identically and each extends in a leaf spring plane. Here, the leaf spring plane of the leaf spring 15 is designated as E1 and the leaf spring plane of the leaf spring 16 is designated as E2. Each leaf spring plane especially extends transversely to the axial direction x.

[0046] The first leaf spring in the leaf spring 15 is Figure 2 visible in a top view and has an inner ring 17, an outer ring 18 surrounding the inner ring, and a plurality of, especially three, spring strips 19 arranged around the inner ring 17. The spring strips extend from the inner ring 17 to the outer ring 18 and are fixedly connected not only to the inner ring 17 but also to the outer ring 18. The spring strips 19 are arranged evenly distributed around the inner ring 17, and each spring strip is especially designed in an S shape. The leaf spring 16 is constructed accordingly.

[0047] Each leaf spring is fixedly fitted at the support element 3 via its inner ring 17 and preferably engages, via its inner ring 17, in an annular groove 20 provided at the outer circumference of the support element 3. Furthermore, each leaf spring is fixed at the housing 2 via its outer ring 18 and, for this purpose, preferably engages, via its outer ring 18, in an annular groove 21 provided at the inner circumference of the housing 2.

[0048] Figure 3 A schematic illustration shows an analysis device 22 connected to the position detection devices 6 and 14, by means of which the position signals S1 and S2 can be analyzed, for example, by comparing the values of the position signals S1 and S2 with preset position signal values. A result signal Sr, which characterizes the result of the comparison, is provided in particular by the analysis device 22.

[0049] Figure 4 Measuring curves determined in the case of an intact and a faulty elastic structure are shown. For this purpose, the pedal 4 is loaded with a force F acting in the axial direction x, while the travel Δx passed by the pedal 4 and the support element 3 due to the force loading is measured by means of the position detection devices 6 and 14. For example, during the measurement, the force starts, in particular, from zero and increases in several steps or continuously to a maximum value. When the force is zero, the pedal is preferably in the pedal rest position and the support element is in the support element rest position. The first spring device 5 is pre-tensioned axially in particular.

[0050] The change trend a of the support element and the change trend b of the pedal can be seen when the pedal device 1 is intact, wherein these change trends a and b coincide below the force Fv due to the pre-tensioning of the first spring device 5. However, if one of the leaf springs 15 or 16 breaks, a change trend c of the support element and a change trend d of the pedal are produced.

[0051] The position or path is measured by means of the position detection devices 6 and 14, so that, for example, a spring break can be detected by a changed path characteristic. For this purpose, a series connection of the spring devices 5 and 13 relative to the housing 2 is utilized. When a force is applied, the support elements 3 and the pedal 4 have an expected stroke Δx corresponding to the curves a and b. The view shows the case where the first spring device 5 is pre-tensioned, so that the two position detection devices 6 and 14 output the same position signal until the pre-tensioning force Fv is reached. Once the preload force Fv of the first spring device 5 is exceeded, the position detection devices 6 and 14 output different position signals. This separation of the position signals forms a characteristic point, which always appears at the same stroke Δx when the spring device is intact. However, if one of the leaf springs 15, 16 breaks, the characteristic point of the signal separation moves to a greater stroke Δx, which can be seen in the curves c and d. When analyzing the position signals, the displacement of the characteristic point can now be compared with the position of the characteristic point during calibration, which is preferably carried out in advance when the spring device is intact. Therefore, the characteristic point during calibration is especially preset.

[0052] List of reference numerals

[0053] 1 Pedal device

[0054] 2 Housing

[0055] 3 Support element

[0056] 4 Pedal

[0057] 5 First spring device

[0058] 6 First position detection device

[0059] 7 Operating section

[0060] 8 Guide section

[0061] 9 Guide hole

[0062] 10 End region

[0063] 11 Stop / locking device

[0064] 12 Longitudinal axis

[0065] 13 Second spring device

[0066] 14 Second position detection device

[0067] 15 Leaf spring

[0068] 16 Leaf spring

[0069] 17 Inner ring

[0070] 18 Outer ring

[0071] 19 Spring strip

[0072] 20 annular groove

[0073] 21 annular groove

[0074] 22 analysis device

[0075] E1 leaf spring plane

[0076] E2 leaf spring plane

[0077] S1 first position signal

[0078] S2 second position signal

[0079] Sr result signal

[0080] u circumferential

[0081] x axial direction

Claims

1. A pedal device, which has a housing (2), a support element (3), a pedal (4) that can be guided displaceably in the axial direction (x) at the support element (3), a first spring device (5) connected to the support element (3) and the pedal (4), the pedal being able to move relative to the support element (3) in the axial direction (x) against the spring force of the first spring device, the pedal device further having a first position detection device (6) by means of which the current axial position of the pedal (4) can be detected and at least one first position signal (S1) characterizing this position can be provided, characterized in that A second spring device (13) and a second position detection device (14) connected to the housing (2) and the support element (3), the support element (3) being movable relative to the housing (2) in the axial direction (x) against the spring force of the second spring device, the current axial position of the support element (3) being detectable by means of the second position detection device and at least one second position signal (S2) characterizing this position being provided.

2. The pedal device according to claim 1, characterized in that, The pedal (4) has an operating section (7) arranged outside the support element (3) and a guiding section (8) extending away from the operating section in the axial direction (x), the guiding section extending into an axial guiding hole (9) provided in the support element (3).

3. The pedal device according to claim 2, characterized in that, The guiding hole (9) is a through-hole, the guiding section (8) extends through the through-hole, the guiding section projects from the guiding hole (9) on the side of the support element (3) facing away from the operating section (7) with an end region (10), the end region having a locking device (11), and the guiding section (8) being axially supportable at the support element (3) by means of the locking device.

4. The pedal device according to claim 2 or 3, characterized in that, The first spring device (5) is arranged between the operating section (7) and the support element (3) and is axially supported both at the pedal (4) and at the support element (3).

5. The pedal device according to any one of the preceding claims, characterized in that, The first spring device (5) is preloaded in the axial direction (x).

6. The pedal device according to any one of the preceding claims, characterized in that The second spring device (13) has one or more leaf springs (15, 16) oriented transversely to the axial direction (x), the leaf springs being penetrated by the support element (3) and elastically supporting the support element in the axial direction (x) at the housing (2).

7. The pedal device according to claim 6, wherein The leaf springs (15, 16) are arranged successively and spaced apart from one another in the axial direction (x).

8. The pedal device according to claim 6 or 7, characterized in that, Each leaf spring has an inner ring (17), an outer ring (18) surrounding the inner ring, and a plurality of spring strips (19) arranged around the inner ring (17), the spring strips extending from the inner ring (17) to the outer ring (18).

9. The pedal device according to claim 8, characterized in that, Each leaf spring is fixedly fitted on the support element (3) by means of the inner ring (17) of the leaf spring and fixed at the housing (2) by means of the outer ring (18) of the leaf spring.

10. The pedal device according to claim 8 or 9, characterized in that, Each spring strip (19) extends in an S-shape.

11. The pedal device according to any one of the preceding claims, characterized in that An analysis device (22) connected to the position detection devices (6, 14), by means of which the position signals can be analyzed and at least one result signal (Sr) characterizing the result of the analysis can be provided.

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