EP3204252A1

EP3204252A1 - Accelerator pedal with haptic signaling

Info

Publication number: EP3204252A1
Application number: EP15751004.1A
Authority: EP
Inventors: Alfred THALER; Anton Paweletz; Burkhard Schneider; Thomas Klotzbuecher; Ulrich Bauer
Original assignee: Robert Bosch GmbH
Current assignee: Robert Bosch GmbH
Priority date: 2014-10-09
Filing date: 2015-08-17
Publication date: 2017-08-16
Also published as: CN106794764A; WO2016055202A1; DE102014220470B4; DE102014220470A1

Abstract

The invention relates to an accelerator pedal with haptic signaling, in particular for a motor vehicle. The accelerator pedal (100) has a pedal arm (300) and a step plate (200). The accelerator pedal (100) has a signaling arrangement (500) for generating a haptic signal. The aim of the invention is to allow a robust and inexpensive design which is as simple as possible and which can simultaneously generate a particularly effective haptic signal. This is achieved in that the step plate (200) is movably arranged on the pedal arm (300), and the signaling arrangement (500) is arranged such that the haptic signal can be transmitted directly from the signaling arrangement (500) to the step plate (200).

Description

Description title

Accelerator pedal with haptic signaling

Field of the invention

The invention relates to an accelerator pedal with haptic signaling, in particular for a motor vehicle, having the features of the preamble of the independent claim.

State of the art

Pedals that give the driver a haptic feedback are already known and are also referred to as active accelerator pedals. The haptic feedback can take various forms, such as knocking or vibration. To generate such haptic feedback there are various possibilities. Often, the entire pedal arm of the accelerator pedal is set in motion, for example by the arrangement of a vibrating element on a

Outside of the pedal arm of the accelerator pedal.

Such an accelerator pedal is known from DE 296 12 273 U1. DISCLOSURE OF THE INVENTION The invention is based on the recognition that the arrangement of a

Signaling device in the form of a vibration element on an outer side of the pedal arm of the accelerator pedal often represents a space problem. In this case, for example, have a trained as a vibrating element signal element, but also serving as a drive unit for signal generation actuator on the outside of the

Pedalarms are housed. This can lead to problems in the design of the shape of the pedal arm with limited space or it is necessary to select such a small actuator or such a small signal element that the intensity of the haptic signal generated on the pedal arm is not or only slightly the requirements of such corresponds to active accelerator pedals. In addition, conventional require

Pedals with haptic signaling for each pedal shape modification (for example, for different car manufacturers or different models of a car manufacturer) own, specially adapted auto switch assembly. This can be high Be associated production costs. Furthermore, it has been found that end users attach great importance to a particularly low noise during operation of such accelerator pedal. In conventional accelerator pedals with arranged on the outside of the pedal arm signal generator arrangements must be special

Noise control measures are taken to prevent the generation and

Transmission of signals to dampen generated sounds. This is costly and requires additional space.

There may therefore be a need to provide an accelerator pedal with haptic signaling, which is particularly compact by a novel design, allows a modular design for various types of accelerator pedal, which is simple and inexpensive to produce, has low noise and in which the signal element and the actuator can be sized sufficiently large to provide a required signal intensity at any time can.

Advantages of the invention

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.

Hereinafter, features, details and possible benefits of an accelerator pedal with haptic signaling according to embodiments of the invention will be discussed in detail. According to a first aspect of the invention, an accelerator pedal with haptic

Signaling, in particular for a motor vehicle proposed. The accelerator pedal has a pedal arm. Furthermore, the accelerator pedal has a tread plate.

Furthermore, the accelerator pedal has a signal generator arrangement for generating a haptic signal. The accelerator pedal is characterized in that the footboard is movably arranged on the pedal arm. In this case, the signal generator arrangement is arranged such that the haptic signal can be transmitted directly from the signal transmitter arrangement on the tread plate.

Under the expression of a movable arranged on the pedal arm tread plate can be understood that the tread plate with respect to the pedal arm at least along a spatial axis is displaced, preferably reversibly or elastically reversible displaced. This can be a lateral movement along a spatial axis or even to act a rotational movement about a rotation axis. Particularly preferably, the mobility of the tread plate relative to the pedal arm to a very narrow

Movement space be limited, for example, at most 1 mm (mm) or at most 3mm based on a rest position of the treadle. This advantageously has the effect that essentially the haptic signals can be transferred particularly well and an operator of the accelerator pedal can control the accelerator pedal at the same time or operate it in a controlled manner.

Under the expression that the haptic signal directly from the

Signaling device can be transferred to the tread plate can be understood an arrangement of the signal generator arrangement relative to the tread plate such that the

Signaling device immediately adjacent to the tread plate or fixed to the tread plate or even integrally formed construction elements. In this way, the haptic signal can be transmitted to the tread plate without further arranged between the signal element and the tread other (separate) elements, in particular without the haptic signal must first take a path through the pedal arm and arranged between treadle and pedal arm elements until it reached the footboard.

The tread plate may be formed separately from the pedal arm, in particular not be formed integrally with the pedal arm. The tread plate, for example, separately from

Be produced pedal arm and be connected only at an assembly step movable with the pedal arm.

The inventive construction of the accelerator pedal can be compared to the prior art, a particularly space-saving and lightweight lightweight construction of the accelerator pedal can be effected. Only the footboard must be subjected to the haptic signal, resulting in little energy loss. Because of that

Tread plate is movably arranged on the pedal arm, it is also particularly well suited to transmit haptic signals transmitted to them, for example in the form of a vibration package or a knock, with high efficiency to an operator of the accelerator pedal. The high efficiency, i. the lowest possible loss of transmission of the haptic signal from the signal generator arrangement to the operator, is also advantageously supported by the fact that the haptic signal directly from the

Signaling device is transferable to the tread plate. Because this eliminates a leading example, by the pedal arm transmission, which dampens the amplitude of such a haptic signal on the way to the tread plate. Advantageously, for example, a smaller signal generator arrangement or a smaller actuator can be selected with the same desired signal intensity, which drives a signal element of the signal generator arrangement. As a result, a particularly space-saving or space-reducing structure of the accelerator pedal is possible. Advantageously, thereby the noise can be reduced. In addition, the direct action of the signal generator arrangement on the tread plate advantageously complex

precision mechanical components conventional signaling device omitted, making the proposed accelerator pedal is particularly robust and error-prone. Finally, the proposed accelerator pedal advantageously enables a modular production of the active accelerator pedals. Because it can for example the same

Signaling device and the same tread plate for different accelerator pedals (left-hand drive, right-hand drive, accelerator pedals of different lengths, etc.) are used, with only the supply line for controlling the signal generator arrangement must be adapted to the respective accelerator pedal. This can be a much larger

Achieve flexibility in the design of such accelerator pedals and considerable cost advantages.

The fact that the signal transmitter arrangement is arranged in a recess of the pedal arm, is advantageously causes the accelerator pedal can be built very small and space-saving. At the same time the signal generator arrangement is particularly well protected in this way against external mechanical influences or the ingress of media (liquids or gases) and dirt. The recess can be designed such that the signal transmitter arrangement can be mounted in the recess only after production of the pedal arm. The recess can also be designed such that the

Signaling device is already introduced in the production of the pedal arm in the recess and is inextricably linked to the pedal arm. For example, can the

Signal transmitter assembly be at least partially encapsulated by the pedal arm. Under the recess is to be understood in such a case, the cavity, which would arise in a removal of the signal generator arrangement.

According to one embodiment of the invention, the pedal arm on a tread plate area. The pedal arm has in the tread plate area in which the tread plate is arranged. The tread plate adjoins the recess. Preferably, the recess is formed as a cup-like chamber, wherein the tread plate facing surface of the

Chamber or the recess, for example, without the overlap with the tread plate is at least partially open. By this embodiment is advantageously a particularly simple Integration of the signaling device in the pedal arm causes. At the same time in this way a particularly close spatial arrangement of the signal generator arrangement and tread plate is effected, whereby the efficiency of the haptic signal at his

Transmission on the footboard particularly high fails. The pedal arm may be formed in two parts, wherein a first part of the tread plate area and the chamber or the recess comprises and a second part is variable designable and can be fixed to the motor vehicle. In such an embodiment, a particularly simple modular production of the accelerator pedal is possible in that the first part and the tread plate arranged movably on it can always be made the same and only the second part has to be adapted to the requirements of the motor vehicle manufacturer.

By arranging at least one elastic element between the tread plate and the pedal arm, it is advantageously effected that the tread plate is deflected after a deflection, e.g. can be returned by the signal generator arrangement back into a defined rest position relative to the pedal arm. This results for an operator of the accelerator pedal in the non-actuated state of the signal generator arrangement always the same relative arrangement between treadle and pedal arm, whereby the operator can operate the accelerator pedal easier and more intuitive. According to one embodiment of the invention, the tread plate has a first region located at a first end of the tread plate and a second region located at a second end of the tread plate facing away from the first end. In this case, the tread plate on the inner side facing the Pedalarm. In this case, the tread plate is connected in the first region and in the second region with its inner side with the at least one elastic element. In this case, the at least one elastic element can advantageously be formed as an elastomer layer. In this case, the at least one elastic element can be particularly advantageously used as a spring element, e.g. be designed as a coil spring or a leaf spring or an elastomeric spring. This has the advantageous effect that the tread plate is mounted elastically at their end regions, whereby the maximum deflectability of the tread plate can be structurally well limited. Excessive movement of the tread plate in an axial direction or around one

Rotation axis can be controlled in a simple manner. At the same time, a bearing formed as an elastomer layer at the ends may be used e.g. arranged under the tread recess or chamber and arranged therein

Signaling device effectively eg protect against penetrating dirt and moisture. The at least one elastic element, for example in the form of an elastomer layer can also be arranged annularly inside the tread plate circumferentially between treadle and pedal arm.

Characterized in that the tread plate is connected to at least one shaft, in particular fixedly connected, wherein the at least one shaft is rotatably mounted in the pedal arm, is advantageously effected that the tread plate is fixed permanently and captively on Pedalarm. Under captive here is to understand an unintentional release of the pedal from the pedal arm. Advantageously, by means of the shaft fixedly connected to the tread plate, a haptic signal can also be impressed on the tread plate. This haptic signal is transmitted due to the rotatable mounting of the shaft on the pedal arm with a particularly high efficiency directly on the footboard. Losses of the signal energy into the pedal arm are minimized in this way. In addition, the material of the pedal arm is spared in this way from the vibration signals, which can result in a longer life of the pedal arm. Advantageously, a rotatory signal pattern can be impressed by the rotatable mounting of the shaft of the tread plate instead of the otherwise only usual linear signal pattern. Advantageously, in this way, the generation of the haptic signal also be particularly quiet, since there are only a few moving parts. Characterized in that the tread plate has a third region, wherein the third region between the first region and the second region is arranged, in particular centrally between the first region and the second region is arranged, wherein the at least one shaft is arranged in the third region is a especially

symmetrical design of the foot plate causes. This advantageously causes a uniform perceptibility of the haptic signal in the tread plate. By the

symmetrical design is also a particularly simple installation possible.

The fact that the at least one shaft extends substantially transversely to a substantially parallel to a surface normal of the tread plate extending tread axis, a signal movement of the tread plate in the

Create substantially parallel to the plane of extension of the tread plate.

According to one embodiment of the invention, at least one permanent-magnetic element is connected to the tread plate. In this case, in the recess on the pedal arm, a the at least one permanent magnetic element facing electrically

energized coil element for generating an electromagnetic field set. Alternatively, at least one electrically energizable coil element for Generation of an electromagnetic field is connected to the tread plate, wherein in the recess on the pedal arm at least one of the coil element assigning permanent magnetic element is fixed. In this case, the permanent magnetic element in the first alternative, for example as a rotor of an electric motor and the energizable coil element can be regarded as a stator. In the other alternative, the coil element may be considered as a rotor and the permanent magnet as a stator. Advantageously, the at least permanent magnetic element and the at least one coil are spaced from each other without contact.

Advantageously, a particularly space-saving, efficient and low-maintenance signaling device is provided by this embodiment. For by an energization of the at least one coil element, an electromagnetic field can be generated, which exerts a force on the at least one permanent magnetic element. By this force, the distance between the coil element and permanent magnetic element changes. Since the tread plate is connected to one of the two components, in particular firmly connected, a haptic signal can thus be applied to the tread plate in a simple manner. For this purpose, advantageously no or only a few fine mechanical components are necessary, which increases the reliability

Life advantageously increased. For example, one of the elements (coil element or permanent magnetic element) may be attached to the at least one shaft. Then advantageous rotational movements can be impressed on the footboard. In a linear arrangement, it is also possible to generate strokes (e.g., "knock" signal) along the surface normal of the tread plate or signals acting parallel to the treadplate plane.

Particularly advantageous modular structures can be produced in this way, in which e.g. a fixed coil element in the pedal arm or the first part of the pedal arm is installed and as a counterpart tailor-made tread plate on the

Signal request customized permanent magnetic elements.

According to one embodiment of the invention, the tread plate is arranged on the pedal arm such that the tread plate is movable relative to the pedal arm in a plane transverse to a surface normal of the tread plate. This provides a haptic signal that is particularly noticeable to the operator of the accelerator pedal. Because the fact that the entire tread plate, preferably reversible, can move relative to the pedal arm is not a single point of the tread plate with respect to the signal intensity particularly preferred. Rather, the signal is equally noticeable everywhere on the tread plate.

Advantageously, it can be provided that the tread plate is movable relative to the pedal arm along a lateral axis. In this case, the lateral axis extends substantially transversely to the longitudinal axis of the tread plate and transversely to a parallel to the surface normal of the tread plate extending tread axis. The longitudinal axis may advantageously extend along the longest extent of the pedal arm. According to one embodiment of the invention, the tread plate has an inner side facing the pedal arm or the recess in the pedal arm. In this case, a first bracing element and a second bracing element are arranged on the inside. In this case, the first bracing element and the second bracing element project into the interior space and are transverse to one another along a lateral axis

Surface normal of the tread plate spaced. In this case, an elastic element, in particular a first spring element, is arranged between a first wall surface of the inner space and the first bracing element. In this case, a further elastic element, in particular a second spring element is arranged between one of the first wall surface opposite the second wall surface of the inner space and the second bracing element. In this case, the tread plate is connected by means of the elastic element and the further elastic element reversibly elastically deflectable connected to the pedal arm. This advantageously ensures that the tread plate without

Kraftbeaufschlagung occupies a rest position and after a lateral deflection, for. as a result of a haptic signal returns to the rest position. This makes the accelerator pedal particularly safe to use.

According to one embodiment of the invention, at least part of the

Signaling arrangement between the first bracing element and the second bracing element arranged such that upon generation of the haptic signal, the signal generator arrangement with the first bracing member and / or the second bracing member is brought into mechanical contact and so the tread plate can be moved along the lateral axis. In this way, advantageously, a particularly compact structure of the accelerator pedal can be effected. Because the

Bracing elements not only serve as abutment surfaces for the spring elements for resetting the tread plate in a rest position. On the contrary, they can also be actuated by the signal generator arrangement on their sides facing away from the spring elements, whereby they serve as stop surfaces for a force input by means of the signal transmitter arrangement can. Thus, the noise emission can be minimized, since there are only a few moving parts.

drawings

Other features and advantages of the present invention will become apparent to those skilled in the art from the following description of exemplary embodiments, which are not to be construed as limiting the invention with reference to the accompanying drawings.

Show it:

Figure 1 is a schematic representation of a motor vehicle with an accelerator pedal with haptic signaling.

2a is a side plan view of an inventive accelerator pedal with haptic signaling according to a first embodiment;

2b shows a cross section through the foot plate of the accelerator pedal of Fig. 2a.

3a shows a longitudinal section through an inventive accelerator pedal with haptic signaling according to a second embodiment;

3b shows a cross section through the foot plate of the accelerator pedal of Fig. 3a.

4a shows a longitudinal section through an inventive accelerator pedal with haptic signaling according to a third embodiment;

Fig. 4b shows a cross section through the footboard of the accelerator pedal of Fig. 4a.

All figures are merely schematic representations of devices according to the invention or of their components according to embodiments of the invention. In particular, distances and size relationships are not to scale in the figures

played. In the various figures, corresponding elements are provided with the same reference numerals or reference numerals. In Figs. 1 and 2a show a motor vehicle 900 with an accelerator pedal 100 with haptic signaling (FIG. 1) or a plan view of an embodiment of an accelerator pedal 100 according to the invention (FIG. 2a). The motor vehicle 900 may be, for example, a passenger car (PKW), a commercial vehicle (commercial vehicle) or another land-based motor vehicle 900. However, it may also be an airworthy, buoyant and / or submersible motor vehicle 900. The motor vehicle 900, in the illustrated embodiment, a car, has a

Drive motor 910, which may be formed for example as an internal combustion engine 912 or as an electric motor 914. A training as a hybrid engine, ie a motor having an internal combustion engine and an electric motor or having an internal combustion engine and a hydraulic or pneumatic motor is possible.

The accelerator pedal 100 has a pedal arm 300 with an accelerator pedal bearing 350.

Furthermore, the accelerator pedal 100 in the vicinity of the accelerator pedal bearing 350 a

Return spring 390 on.

The drive motor 910 is coupled to the accelerator pedal 100 via a signal connection 920. The accelerator pedal 100 can by a driver, for example by a

Power exercise with his foot 190 to a arranged on the accelerator pedal bearing 350

Pedal axis (not shown) to be pivoted. Depending on the

Verschwenkwinkel the driver transmits a power request request to the drive motor 910. The pivot angle is, for example, by means of

Signal connection 920 transmitted to a arranged on or in the drive motor 910 unit, with which the power of the drive motor 910 can be controlled, for example, a throttle valve in an internal combustion engine (not shown). When the power is applied to the accelerator pedal 100, the accelerator pedal 100 is pivoted back about the pedal axis by means of the return spring 390.

The pedal arm 300 has a tread plate region 370 at an end remote from the accelerator pedal bearing 350. The pedal arm 300 extends, at least in

Tread plate area 370, along a longitudinal axis 280. At the pedal arm 300 is in

Tread plate area 370 a tread plate 200 movably arranged.

The tread plate 200 is designed flat and defines a substantially parallel to its surface normal extending tread axis 282. Upon actuation of the

Acceleration pedal 100 is usually a force or a force component along the tread axis 282 applied to the tread 200. The tread axis 282 may be orthogonal be aligned to the longitudinal axis 280. Transverse to the longitudinal axis 280 and transverse to the tread axis 282, a lateral axis 284 extends.

The longitudinal axis 280, the tread axis 282 and the lateral axis 284 may include

spanning a right-angled Cartesian coordinate system.

The tread plate 200 has on the outer sides of their longitudinal sides extending along the longitudinal axis 280 each one facing the Pedalarm 300

Tread plate collar 260, 262 on. This tread collar 260, 262, the

Tread plate portion 370 of the pedal arm 370 overlap laterally, thus limiting a range of movement of the tread plate 200 along the lateral axis 284 relative to the pedal arm 300th

The accelerator pedal 100 or the pedal arm 300 or the tread plate 200 may at least partially be produced as an injection molded part, wherein the accelerator pedal 100, pedal arm 300 or tread plate 200 may be formed from a material which comprises, for example, plastic and / or at least one metal.

In Fig. 2b is a cross section through the accelerator pedal 100 of FIG. 2a along the

shown dashed line, whereby the arrangement of the tread plate 200 is illustrated relative to the pedal arm 300.

The pedal arm 300 has in its interior 310 a cup-shaped

Recess 320 and chamber 320 on. In this recess 320 or chamber 320, a signal transmitter arrangement 500 is arranged approximately in the center, of which only a signal element 510 designed as an eccentric disk 512 is illustrated in the illustrated cross section. The overhang 514 of the eccentric disk 512 projecting beyond a round shape extends essentially along the lateral axis 284 in the illustrated state. The eccentric disk 512 can be set in rotation by an axis 520, which is not visible in the illustrated cross-section, about an axis extending parallel to the longitudinal axis 280 as indicated by arrow 580. It can make full turns or vibrate around a rest position clockwise and counterclockwise. The cup-shaped recess 320 or chamber 320 is bounded by a wall 330. The wall 330 has a first interior surface 310 facing wall surface 332 and a The first wall surface 332 opposite second wall surface 334, which also in the interior 310 of the recess 320 and the pedal arm 300 has.

The tread plate 200 adjoins the (in the figure 2a above) open chamber 320 with an inner side 202 of the tread plate 200 at. The tread plates 260, 262 overlap along the tread axis 282 with the wall 330 of the chamber 320 of the pedal arm 300. The tread plate 200 has on its inner side 202 a first bracing element 220 and a second bracing element 222. The first bracing element 220 and the second bracing element 222 are spaced apart along the lateral axis 284 and protrude between the first wall surface 332 and the second wall surface 334

Inner 310 of the chamber 320 or recess 320. Between the first wall surface 332 and the first bracing member 220, an elastic member 250 is arranged, which is formed in the illustrated embodiment by a spring element 340. Likewise, between the second wall surface 334 and the second

Bracing element 222, an elastic member 250 is arranged, which is designed as a further spring element 342. The spring element 340 and the further spring element 342 can be used as a spiral spring, as a leaf spring, as a plate spring, as

Coil spring, as an elastomer spring, as a torsion spring or as another

Be formed spring element.

By means of the elastic elements 250 or by means of the spring element 340 and the further spring element 342, the tread plate 200 is elastically braced in the lateral direction 284 against the pedal arm 300 and is without force in a rest position, by the counteracting spring forces of the first spring element 340 and second spring element 342 is effected. A movement of the tread plate 200, for example due to a force along the lateral axis 284 (in Fig. 2b so to the right or to the left) is possible in this way, but due to the spring action causes the tread plate 200 after completion of a force again returns to its rest position. By the tread plate collar 260, 262 and by the bracing members 220, 222 and the interposed and acting as stops wall surfaces 332, 334 is beyond the

Range of motion restricted for lateral movement. The tread plate 200 may not be at the ends of the tread plate portion 370 by, for example, one here

illustrated clip connection or other non-positive, positive or material connection with the pedal arm 300 to be connected captively. Between the first bracing element 220 and the second bracing element 222, the eccentric disk 512 is arranged such that it alternately abuts against the first bracing element 220 and the second bracing element 222 on rotation about its axis due to its eccentricity. In this way, the

Stepping plate 200 when the eccentric disk 512 is actuated moves laterally along the lateral axis 284 relative to the pedal arm 300. Depending on the activation of the eccentric disc 512 can be in this way vibration pulses or even a single

Immediately stamp the call waiting signal on the step plate 200. In Fig. 3a, another embodiment of a haptic accelerator pedal 100 is shown in a longitudinal section. The pedal arm 300 has on its side facing away from the accelerator pedal bearing 350 side not shown on the tread plate area 370. in the

Tread plate portion 370 of the pedal arm 300, a recess 320 and chamber 320 is arranged. The recess 320 is circumferentially bounded by a wall 330, for example, and is open at the top in FIG. 3a. On the end face 335 of the recess 320 limiting wall 330, a thin elastomer layer 252 is arranged, which acts as an elastic element 250. The tread plate 200 is in

Tread plate portion 370 of the pedal arm 300 arranged. The tread plate 200 has an inner side 202 facing the recess 320 or chamber 320. The tread plate 200 is in a located at its first end 203 first portion 204 with their

Inside 202 fixed to the elastic element 250, e.g. the elastomer layer 252, connected on one side of the recess 320. The tread plate is further connected in a located at its remote from the first end 203 second end 207 second region 206 with its inner side 202 fixed to the elastic member 250 on the other side of the recess 320. The tread plate 200 may also be circumferentially connected on its inner side 202 with an elastomer layer 252 surrounding the recess 320. In this way, the recess 320 or chamber 320 can be protected particularly reliably against penetrating dirt or penetrating moisture. In addition, an acoustic insulation of arranged in the chamber 320 and in the recess 320 elements is possible. At the same time a certain at least minimal movement of the tread plate 200 in all spatial directions by the elasticity of

Elastomer layer 252 and the elastic member 250 ensured.

In an area between the first area 204 and the second area 206

A receiving element 210 projecting from the inside 202 of the tread plate 200 into the recess 320 or chamber 320 can be seen, preferably in the middle of the tread plate 200, arranged third region 205. The receiving element 214 is Part of the tread plate 200 and preferably formed integrally with the tread plate 200. It is thus firmly connected to the inside 202 of the tread plate 200. The

Receiving element 210 is furthermore firmly connected to a shaft 214 extending in the image plane, which likewise forms part of the tread plate 200. The shaft 214 is rotatably mounted in the wall 330 of the recess 320 (see Fig. 3b).

In the interior 310 of the recess 320 or chamber 320, the signal transmitter assembly 500 is arranged. In this case, in the illustrated embodiment, at the bottom of the recess 320, which faces the tread plate 200, a current-energized coil element 522 set. The supply of electrical current to the coil element 522 may be effected by supply lines 540, which are injected for example in the pedal arm 300 or guided by channel-like recesses in the pedal arm 300 and are electrically connected to the coil element 522. By applying an electric current to the coil element 502 20, an electromagnetic field can be generated or varied. The coil element 522 acts as an actuator 520 of the signal generator arrangement 500. The coil element 522 can be considered in this case as a stator of an electric motor.

The counterpart to the coil element 522 acting as a stator is the signal element 510 fixedly connected to the shaft 214, which is thus directly connected to the tread plate 200. The signal element 510 consists in the illustrated embodiment of six permanent magnetic elements 530. The six permanent magnetic elements 530 are fixed radially on an outer side of a rotor support 532, wherein the rotor support 532 is fixedly connected to the shaft 214 and preferably made of a particularly lightweight material, which for example Plastic includes. Of the

Rotor carrier 532 and the permanent magnetic elements 530 are spaced from the coil element 522 without contact. The signal element 510 or the

Permanent magnetic elements 530 can be used as a type of rotor

Electric motor can be considered.

In order to apply a haptic signal on the tread plate 200 can in

Coil element 522, for example, an alternating electromagnetic field are generated by a suitable current supply. As a result of the force acting on the permanent-magnetic elements 530 changing as a result of the alternating electromagnetic field, the rotor carrier 532 is laterally moved or rotationally rotated along the lines of force. As a result of the fixed connection of the rotor support 532 with the tread plate 200 so the haptic signal of the signaling device 500 is directly or directly on the Tread plate 200 applied. The tread plate thus moves along the double arrow 382 up and down along the tread axis 282 and also slightly along the arrows 380a, 380b in the figure to the right and to the left, ie in the direction of the longitudinal axis 280. Of course, it is possible on the shaft 214th To fix the coil element 522 and set at the bottom of the recess 320 at least one permanent magnetic element 530. Likewise, it is possible to mount fewer or even more than six permanent-magnetic elements 530 on the rotor carrier 532, for example only one permanent-magnetic element 530 or two or three or four or five or seven or eight or ten or twelve permanent-magnetic elements 530.

In Fig. 3b is a cross section along the dashed line in Fig. 3a through the

Signaling device 500 shown. In this illustration, the structure of the

Stepping plate 200 with two adjacent to the peripheral wall 330 into the interior 310 of the recess 320 and chamber 320 projecting receiving elements 210 particularly clear. The possible rotational movement of the tread plate 200 about the axis of rotation 516 of the shaft 214 mounted in bearings 360 of the wall 330 is shown schematically by the arrow 518. This rotation creates on the treadboard the up / down movement represented by the double arrow 382 along the tread axis 282. Due to the bearing of the shaft 214 in the wall 330 of the recess 320, the tread plate 200 is also particularly well secured against loss.

The Figs. 4a and 4b show another embodiment of the haptic accelerator pedal 100. The structure of the pedal arm 300 and the tread plate 200 is in principle the same, as in Fig. 3a. Here too, the tread plate 200 is rotatably mounted in the wall 330 of the recess 320 in the pedal arm 300 by means of two receiving elements 210 projecting from their inner side 202 into the recess 320 with an attached shaft 214. in the

In contrast to the embodiment according to FIG. 3 a, the signal transmitter arrangement 500 is designed here as an eccentric disk 512 (FIG. 4 b). The eccentric disc 512 has at least at one point on one of its otherwise circular shape with a radius R deviating eccentric projection 514. At the eccentric supernatant 514, the eccentric disc has a radius increased by AR. The eccentric disk 512 is rotatably mounted, for example, along an axis parallel to the longitudinal axis 280. The eccentric disk 514 thus serves as a signal element 510 and is connected to an actuator 520, which is injected, for example, in the pedal arm 300 and extends, for example, along the longitudinal axis 280. The actuator may be the eccentric disc 514 either in rotations or put them in partial rotations, so they move, for example, alternately clockwise or counterclockwise. The eccentric supernatant 514 can be designed such that it at each rotation or in each

Vibration period beats at least once on the inside 202 of the tread plate 200 and in this way immediately a haptic signal in the form of an up / down movement (see double arrow 382) substantially along the tread axis 282 on the tread plate 200 transmits.

The signaling device assembly 500 may generally include an actuator 520 and a signal element 510 in operative engagement with the tread plate 200. The actuator 520 and the signal element 510 are operatively connected, but need not necessarily be mechanically interconnected with the permanent-magnetic elements 530 and the coil element 522 as illustrated above embodiment. A mechanical connection, for example by a rigid or flexible shaft between the actuator 520 and the signal element 510 is conceivable. The signal element 510 and the actuator 520 can also be components produced separately from one another in the case of a mechanical connection or an at least temporary mechanical connection. Actuator 520 and signal element 510 may also be formed entirely separate from each other.

The actuator 520 may be generally considered as an actuator. The generation of the haptic signal in the actuator 520 may, for example, electrical, electromagnetic, magnetic, pneumatic, hydraulic, optical or

thermodynamically (for example by the application of heat) take place. In general, all known to those skilled actuator or actuators are conceivable. For example, the actuator 520 may be formed as an electric motor or pneumatic motor or hydraulic motor for impressing a rotational movement. The actuator may e.g. also as

Stepper motor, linear drive, solenoid or as pneumatic piston or

A particularly suitable, small-sized and cost-effective, a so-called Torquer motor has proven that only allows a partial rotation of a shaft connected to its rotor However, the Torquer motor allows for suitable, eg high-frequency

Applying electricity the efficient generation of vibrations. The actuator 520 of the embodiment of Figs. 3a and 3b can be understood, for example, as a kind of Torquer motor, without being limited to the embodiment of a Torquer motor be. The in FIGS. Supply lines 540 shown in FIGS. 3a and 4a may represent electrical, hydraulic or pneumatic supply lines 540.

The signal element 510 may be designed to transmit the haptic signal to the tread plate 200, for example, as a vibrating element, have one or more cams or the tread plate 200 by an uneven weight distribution

(Unbalance) in a movement relative to the pedal arm 300 move.

The proposed haptic accelerator pedal 100 can be used in motor vehicles of all kinds, for example in land-based, airborne, buoyant and / or submersible motor vehicles. It can be used as a standing or hanging accelerator pedal 100.

Claims

Claims:

1 . Accelerator pedal with haptic signaling, in particular for a motor vehicle,

wherein the accelerator pedal (100) comprises a pedal arm (300) and a tread plate (200), wherein the accelerator pedal (100) has a signal generator arrangement (500) for generating a haptic signal, characterized in that the tread plate (200) is movable on the pedal arm (200). 300) is arranged,

wherein the signal generator arrangement (500) is arranged such that the haptic signal can be transmitted directly from the signal transmitter arrangement (500) to the tread plate (210).

2. accelerator pedal according to claim 1, characterized in that

the signal generator arrangement is arranged in a recess (320) of the pedal arm (300).

3. accelerator pedal according to claim 2, characterized in that

the pedal arm (300) has a tread plate area (370) in which the tread plate (200) is arranged,

wherein the tread plate (200) is adjacent to the recess (320).

4. accelerator pedal according to one of the preceding claims, characterized in that

between the tread plate (200) and the pedal arm (300) at least one elastic element (250) is arranged.

5. accelerator pedal according to claim 4, characterized in that

the tread plate (200) has a first region (204) located at a first end (203) of the tread plate (200) and a second region (206) located at a second end (207) of the tread plate (200) remote from the first end (203) ), wherein the tread plate (200) has an inner side (202) facing the pedal arm (300),

wherein the tread plate in the first region (204) and in the second region (206) with its inner side (202) with the at least one elastic element (250), in particular as an elastomer layer (252) formed elastic element (250) is connected.

6. accelerator pedal according to claim 4 or 5, characterized in that

the tread plate (300) is connected to at least one shaft (214), in particular is firmly connected,

wherein the at least one shaft (214) is rotatably mounted in the pedal arm (300).

7. accelerator pedal according to claim 6, characterized in that

the footboard has a third area (205),

wherein the third region (205) is arranged between the first region (204) and the second region (206), in particular centrally between the first region (204) and the second region (206),

wherein the at least one shaft (214) is arranged in the third region (205).

8. accelerator pedal according to claim 6 or 7, characterized in that

the at least one shaft (214) is substantially transverse to one in the

Extends substantially parallel to a surface normal of the tread plate (200) extending tread axis (282),

9. accelerator pedal according to one of claims 2 to 8, characterized in that

at least one permanent magnetic element (520) is connected to the tread plate (200),

wherein in the recess (320) on the pedal arm (300) is fixed to the at least one permanent magnetic element (550) electrically energizable coil element (552) for generating an electromagnetic field,

or that at least one electrically energizable coil element (522) for generating an electromagnetic field with the tread plate (200) is connected, wherein in the recess (320) on the pedal arm (300) at least one of

Coil element (552) assigning permanent magnetic element (520) is fixed.

10. accelerator pedal according to claim 4, characterized in that

the tread plate (200) is disposed on the pedal arm (300) such that the

Tread plate (200) relative to the pedal arm (300) in a plane transverse to a surface normal of the tread plate (200) is movable. Accelerator pedal according to claim 10, characterized in that

the tread plate (200) has an inner side (202) facing the pedal arm (300), wherein a first bracing element (220) and a second bracing element (222) are arranged on the inner side (202),

wherein the first brace member (220) and the second brace member (222) protrude into the interior space (310) and are spaced from each other along a lateral axis (284) transverse to the surface normal of the tread plate (200),

wherein an elastic element (250), in particular a first spring element (340), is arranged between a first wall surface (320) of the inner space (310) and the first bracing element (220),

wherein between one of the first wall surface (320) opposite the second wall surface (322) of the inner space (310) and the second bracing element (222), a further elastic element (250), in particular a second

Spring element (342) is arranged,

wherein the tread plate (200) is reversibly elastically deflectably connected to the pedal arm (300) by means of the elastic element (250) and the further elastic element (250). 12. accelerator pedal according to claim 1 1, characterized in that

at least a portion of the signaling device (500) between the first

Tensioning element (220) and the second bracing element (222) is arranged such that when generating the haptic signal, the

Signaling device (500) with the first bracing element (220) and / or the second bracing element (222) is brought into mechanical contact and in such a way the tread plate (200) along the lateral axis (284) can be moved.