DE102014220470B4 - Accelerator pedal with haptic signaling - Google Patents

Abstract

The invention relates to an accelerator pedal with haptic signaling, in particular for a motor vehicle, wherein the accelerator pedal (100) has a pedal arm (300) and a tread plate (200). The accelerator pedal (100) has a signal generator arrangement (500) for generating a haptic signal. The tread plate (200) is arranged movably on the pedal arm (300), the signal transmitter arrangement (500) being arranged such that the haptic signal can be transmitted directly from the signal generator arrangement (500) to the tread plate (200) At least one elastic element (250) is arranged between the tread plate (200) and the pedal arm (300), wherein 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) facing away from the first end (203), wherein the tread plate (200) has an inner side (202) facing the pedal arm (300) the tread plate in the first region (204) and in the second region (206) is connected with its inside (202) to the at least one elastic element (250).

Description

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 1 and further an accelerator pedal with haptic signaling, in particular for a motor vehicle, having the features of the preamble of the independent claim 2.

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. Frequently, the entire pedal arm of the accelerator pedal is set in motion, for example, by the arrangement of a vibrating element on an outer side of the pedal arm of the accelerator pedal.

Such an accelerator pedal is out of the DE 296 12 273 U1 known.

From the DE 20 2010 007 324 U1 and from the US 2012/0 042 744 A1 are also known such accelerator pedals.

Disclosure of the invention

The invention is based on the recognition that the arrangement of a signal generator arrangement in the form of a vibration element on an outer side of the pedal arm of the accelerator pedal often represents a construction space problem. Here, for example, designed as a vibration element signal element, but also serving as a drive unit for signal generation actuator must be accommodated on the outside of the pedal arm. 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 accelerator pedals with haptic signaling require their own customized transducer assembly for each pedal-shape modification (eg, for different vehicle manufacturers or different models of a car manufacturer). This can be associated with high 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 signal generator arrangements arranged on the outside of the pedal arm, special noise attenuation measures have to be taken in order to dampen the noises generated in the generation and transmission of signals. 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 different 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 matters of the present invention according to independent claims 1 and 2. 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, is 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 may be a lateral movement along a spatial axis or a rotational movement about an axis of rotation. Particularly preferably, the mobility of the tread plate relative to the pedal arm can be restricted to a very narrow range of motion, for example to at most 1 mm (millimeters) or to a maximum of 3 mm relative to a rest position of the tread plate. This advantageously causes substantially the haptic signals in particular are well transferable and an operator of the accelerator pedal at the same time can control the accelerator pedal well or can operate controlled.

Under the expression that the haptic signal is transferable directly from the signal generator arrangement on the tread plate can be understood an arrangement of the signal transmitter arrangement relative to the tread plate such that the signal generator arrangement directly adjacent to the tread plate or with the tread plate fixed 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. For example, the tread plate may be made separately from the pedal arm and may be movably connected to the pedal arm only during an assembly step.

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. The fact that the 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 advantageously also supported by the fact that the haptic signal can be transmitted directly from the signal generator arrangement to the footplate. 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, complex fine-mechanical components of conventional signal generator arrangement are advantageously dispensable by the direct action of the signal generator arrangement on the tread plate, whereby the proposed accelerator pedal is designed to be 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 signal generator arrangement 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. As a result, a much greater flexibility in the construction of such accelerator pedals and considerable cost advantages can be achieved.

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. However, the recess can also be designed such that the signal generator arrangement is already introduced into the recess during the production of the pedal arm and is permanently connected to the pedal arm. For example, the signal generator arrangement can at least partially be 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 region 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. This embodiment advantageously brings about a particularly simple integration of the signal transmitter arrangement in the pedal arm. 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 for the haptic signal in its transmission to the tread plate 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 is particularly simple one Modular production of the accelerator pedal possible by the first part and the movably arranged tread plate can always be made equal and only the second part has to be adapted to the needs of vehicle manufacturers.

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 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 about an axis of rotation can thus 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. recess or chamber disposed below the tread plate and the signal generator arrangement disposed therein, e.g. Protect against penetrating dirt and moisture. The at least one elastic element, e.g. in the form of an elastomer layer can also be arranged annularly the inside of the tread plate circumferentially between foot plate and Pedalarm.

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 particularly symmetrical design of the foot plate causes. This advantageously causes a uniform perceptibility of the haptic signal in the tread plate. The symmetrical design also makes a particularly simple installation possible.

Due to the fact that the at least one shaft extends essentially transversely to a tread axis extending essentially parallel to a surface normal of the tread plate, it is particularly easy to generate a signal movement of the tread plate substantially parallel to the extension plane 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, an at least one permanent magnetic element facing electrically energizable coil element for generating an electromagnetic field is set. Alternatively, at least one electrically energizable coil element for generating an electromagnetic field is connected to the tread plate, wherein in the recess on the pedal arm at least one permanent magnet element assigning the coil element is fixed.

In this case, the permanent magnetic element in the first alternative, e.g. be regarded as a rotor of an electric motor and the energizable coil element 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 advantageously increases the reliability over life. 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 lifting movements (eg "call waiting" signal) along the surface normal of the tread plate or signals acting parallel to the tread plate 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 a tailor-made tread plate with tailored to the signal request permanent magnetic elements.

According to a second aspect of the invention, the tread plate is disposed 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 the invention, the tread plate on a the pedal arm or the recess in Pedalarm facing inside. 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 protrude into the interior space and are spaced apart from one another along a lateral axis transversely to the surface normal of the tread plate. 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. As a result, it is advantageously achieved that the tread plate assumes a rest position without application of force and after a lateral deflection, e.g. as a result of a haptic signal returns to the rest position. This makes the accelerator pedal particularly safe to use.

According to the invention, at least part of the signal generator arrangement is arranged between the first clamping element and the second clamping element such that when the haptic signal is generated, the signal transmitter arrangement can be brought into mechanical contact with the first clamping element and / or the second clamping element and thus the tread plate along the lateral axis can be moved. In this way, advantageously, a particularly compact structure of the accelerator pedal can be effected. Because the bracing serve not only 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, wherein they can serve as stop surfaces for a force input by means of the signal transmitter arrangement. 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.

• 1 eine schematische Darstellung eines Kraftfahrzeugs mit einem Fahrpedal mit haptischer Signalgebung;
• 2a eine seitliche Aufsicht auf ein erfindungsgemäßes Fahrpedal mit haptischer Signalgebung gemäß einer ersten Ausführungsform;
• 2b einen Querschnitt durch die Trittplatte des Fahrpedals aus 2a;
• 3a einen Längsschnitt durch ein erfindungsgemäßes Fahrpedal mit haptischer Signalgebung gemäß einer zweiten Ausführungsform;
• 3b einen Querschnitt durch die Trittplatte des Fahrpedals aus 3a;
• 4a einen Längsschnitt durch ein erfindungsgemäßes Fahrpedal mit haptischer Signalgebung gemäß einer dritten Ausführungsform;
• 4b einen Querschnitt durch die Trittplatte des Fahrpedals aus 4a.

Show it:

• 1 a schematic representation of a motor vehicle with an accelerator pedal with haptic signaling;
• 2a a side view of an inventive accelerator pedal with haptic signaling according to a first embodiment;
• 2 B a cross section through the footboard of the accelerator pedal 2a ;
• 3a a longitudinal section through an inventive accelerator pedal with haptic signaling according to a second embodiment;
• 3b a cross section through the footboard of the accelerator pedal 3a ;
• 4a a longitudinal section through an inventive accelerator pedal with haptic signaling according to a third embodiment;
• 4b a cross section through the footboard of the accelerator pedal 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 shown to scale in the figures. In the various figures, corresponding elements are provided with the same reference numerals or reference numerals.

In the 1 and 2a is a motor vehicle 900 with an accelerator pedal 100 presented with haptic signaling ( 1 ) or a plan view of an embodiment of an accelerator pedal according to the invention 100 ( 2a ). The car 900 can be, for example, a passenger car (passenger car), a commercial vehicle (commercial vehicle) or another land-based motor vehicle 900 be. However, it may also be an airworthy, buoyant and / or submersible motor vehicle 900 act. The car 900 , in the illustrated embodiment, a car, has a drive motor 910 on, for example, as an internal combustion engine 912 or as an electric motor 914 can be trained. 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 on. Furthermore, the accelerator pedal 100 near the accelerator pedal bearing 350 a return spring 390 on.

The drive motor 910 is by means of a signal connection 920 with the accelerator pedal 100 coupled. The accelerator pedal 100 can by a driver, for example, by a force with his foot 190 one at the accelerator pedal bearing 350 arranged pedal shaft (not shown) to be pivoted. Depending on the pivot angle, the driver transmits a power request to the drive motor 910 , The pivot angle is, for example, by means of the signal connection 920 to a on or in the drive motor 910 arranged unit transmitted with which the performance of the drive motor 910 can be controlled, for example, a throttle valve in an internal combustion engine (not shown). When the force on the accelerator pedal decreases 100 becomes the accelerator pedal 100 by means of the return spring 390 pivoted back around the pedal axle.

The pedal arm 300 indicates one of the accelerator pedal bearing 350 opposite end of a tread plate area 370 on. The pedal arm 300 extends, at least in the tread plate area 370 along a longitudinal axis 280 , At the pedal arm 300 is in the treadplate area 370 a footboard 200 movably arranged.

The tread plate 200 is designed flat and defines a substantially parallel to your surface normal extending tread axis 282 , Upon actuation of the accelerator pedal 100 usually becomes a force or a force component along the tread axis 282 on the tread 200 applied. The tread axis 282 can be orthogonal to the longitudinal axis 280 be aligned. Transverse to the longitudinal axis 280 and across the tread axis 282 a lateral axis extends 284 ,

The longitudinal axis 280 , the tread axis 282 and the lateral axis 284 can span a right-angled Cartesian coordinate system.

The tread plate 200 points to the outsides of them along the longitudinal axis 280 extending longitudinal sides each one the pedal arm 300 facing tread collar 260 . 262 on. This tread collar 260 . 262 that the treadplate area 370 of the pedal arm 370 overlap laterally limit such a range of motion of the treadle 200 along the lateral axis 284 relative to the pedal arm 300 ,

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

In 2 B is a cross section through the accelerator pedal 100 out 2a Shown along the dashed line, whereby the arrangement of the tread plate 200 relative to the pedal arm 300 is clarified.

The pedal arm 300 has in its interior or in its interior 310 a cup-shaped recess 320 or chamber 320 on. In this recess 320 or chamber 320 is a signal generator arrangement approximately in the middle 500 arranged, of the cross-section shown in the illustrated only as an eccentric 512 trained signal element 510 is shown. The protruding over a round shape supernatant 514 the eccentric disc 512 extends in the illustrated state substantially along the lateral axis 284 , The eccentric disc 512 can, of a not visible in the illustrated cross section actuator 520 to move one parallel to the longitudinal axis 280 extending axis are set in rotation, as indicated by the arrow 580 is clarified. It can make full turns or vibrate around a rest position clockwise and counterclockwise.

The cup-shaped recess 320 or chamber 320 is from a wall 330 limited. The wall 330 has a first inside or in the interior 310 facing wall surface 332 on and one of the first wall surface 332 opposite second wall surface 334 , which also into the interior or in the interior 310 the recess 320 or the pedal arm 300 has.

The tread plate 200 adjacent to the (in the 2a above) open chamber 320 with an inside 202 of the tread plate 200 at. The tread collar 260 . 262 overlap along the tread axis 282 with the wall 330 the chamber 320 of the pedal arm 300 , The tread plate 200 indicates on its inside 202 a first bracing element 220 and a second bracing member 222 on. The first bracing element 220 and the second bracing member 222 are along the lateral axis 284 spaced apart and project between the first wall surface 332 and the second wall surface 334 inside or in the interior 310 the chamber 320 or recess 320 , Between the first wall surface 332 and the first bracing member 220 is an elastic element 250 arranged, in the illustrated embodiment by a spring element 340 is trained. Likewise, between the second wall surface 334 and the second bracing member 222 an elastic element 250 arranged, which as another spring element 342 is trained. The spring element 340 and the further spring element 342 may be formed as a spiral spring, as a leaf spring, as a plate spring, as a helical spring, as an elastomeric spring, as a torsion spring or as another spring element.

By means of elastic elements 250 or by means of the spring element 340 and the further spring element 342 is the tread plate 200 in lateral direction 284 against the pedal arm 300 elastically clamped and is without force in a rest position, by the counter-acting spring forces of the first spring element 340 and the 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 2 B So to the right or to the left) is possible in this way, but due to the spring action causes the tread plate 200 returns to its rest position after a force has ceased. Through the tread collar 260 , 262 and by the bracing elements 220 . 222 and the interposed and acting as stops wall surfaces 332 . 334 In addition, the range of motion for a lateral movement is restricted. The tread plate 200 can be at the ends of the tread area 370 For example, by means of a clip connection, not shown here, or other non-positive, positive or cohesive connection with the pedal arm 300 be connected captive.

Between the first bracing element 220 and the second bracing member 222 is the eccentric disc 512 arranged such that, in a rotation about its axis due to their eccentricity alternately against the first bracing element 220 and the second bracing element 222 abuts. In this way, the tread plate 200 upon actuation of the eccentric disc 512 along the lateral axis 284 opposite the pedal arm 300 moved laterally. Depending on the activation of the eccentric disc 512 can be in this way vibration pulses or even a single call waiting signal on the treadle 200 immediately imprint.

In 3a is another embodiment of a haptic accelerator pedal 100 shown in a longitudinal section. The pedal arm 300 indicates at its from the accelerator pedal bearing, not shown 350 facing away from the tread plate area 370 on. In the treadplate area 370 of the pedal arm 300 is a recess 320 or chamber 320 arranged. The recess 320 is from a wall 330 For example circulating limited and is in the 3a formed open at its top side. On the front side 335 of the recess 320 bounding wall 330 is a thin elastomer layer 252 arranged as an elastic element 250 acts. The tread plate 200 is in the treadplate area 370 of the pedal arm 300 arranged. The tread plate 200 has one of the recess 320 or chamber 320 facing inside 202 on. The tread plate 200 is in a herself at her first end 203 located first area 204 with her inside 202 firmly with the elastic element 250 , eg the elastomeric layer 252 , on one side of the recess 320 connected. The tread plate is still in one at its from the first end 203 remote second end 207 located second area 206 with her inside 202 firmly with the elastic element 250 on the other side of the recess 320 connected. The tread plate 200 can also be circumferential on its inside 202 with a recess 320 circumferential elastomer layer 252 be connected. In this way, the recess 320 or chamber 320 particularly reliably protected against penetrating dirt or penetrating moisture. In addition, this is an acoustic insulation of in the chamber 320 or arranged in the recess 320 elements possible. At the same time, there is a certain minimum movement of the footboard 200 in all spatial directions by the elasticity of the elastomer layer 252 or the elastic element 250 ensured.

In one, between the first area 204 and the second area 206 located, preferably in the center of the tread plate 200 , arranged third area 205 is one from the inside 202 the tread plate 200 in the recess 320 or chamber 320 protruding receiving element 210 to recognize. The receiving element 214 is part of the tread plate 200 and preferably in one piece with the tread plate 200 educated. It is thus fixed to the inside 202 the tread plate 200 connected. The receiving element 210 is still stuck with a wave extending into the image plane 214 connected, which is also part of the tread plate 200 is. The wave 214 is rotatable in the wall 330 the recess 320 stored (see 3b ).

At the inside 310 the recess 320 or chamber 320 is the signaling device 500 arranged. It is in the illustrated embodiment at the bottom of the recess 320, which is the tread plate 200 opposite, a currentable coil element 522 established. The supply of electrical current to the coil element 522 can thereby by supply lines 540 done, for example, in the pedal arm 300 are injected or through channel-like recesses in the pedal arm 300 are guided and with the coil element 522 are electrically connected. By acting on the coil element 502 20 With electric current, an electromagnetic field can be generated or varied. The coil element 522 acts as an actuator 520 the signaling device 500 , The coil element 522 can be considered in this case as a stator of an electric motor.

The counterpart to acting as a stator coil element 522 is the signal element fixedly connected to the shaft 214 510 , thus directly with the footboard 200 connected is. The signal element 510 consists in the illustrated embodiment of six permanent magnetic elements 530 , The six permanent magnetic elements 530 are radially on an outside of a rotor carrier 532 set, wherein the rotor carrier 532 stuck with the shaft 214 is connected and preferably made of a particularly lightweight material, which includes plastic, for example. The rotor carrier 532 and the permanent magnetic elements 530 are contactless from the coil element 522 spaced. The signal element 510 or the permanent magnetic elements 530 can be considered as a kind of rotor of an electric motor.

To get a haptic signal on the footboard 200 can act in the coil element 522 For example, an electromagnetic alternating field can be generated by a suitable current supply. Due to the changing force due to the alternating electromagnetic field force on the permanent magnetic elements 530 of the rotor arm 532 moved laterally or rotationally rotated along the lines of force. Due to the fixed connection of the rotor carrier 532 with the footboard 200 Thus, the haptic signal of the signaling device 500 directly or directly on the footboard 200 applied. The tread plate thus moves along the double arrow 382 up and down along the tread axis 282 and also something 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 214 the coil element 522 to attach and to the bottom of the recess 320 at least one permanent magnetic element 530 set. It is also possible on the rotor arm 532 less or more than six permanent magnetic elements 530 to attach, 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 3b is a cross section along the dashed line in FIG 3a by the signal generator arrangement 500 shown. In this illustration, the structure of the tread plate 200 with two adjacent to the perimeter wall 330 inside or in the interior 310 the recess 320 or chamber 320 protruding receiving elements 210 especially clear. The possible rotational movement of the tread plate 200 in camps 360 the Wall 330 mounted rotary axis 516 the wave 214 is with the arrow 518 shown schematically. This rotation creates on the treadle the up / down movement, by the double arrow 382 along the tread axis 282 is shown. By the storage of the shaft 214 in the wall 330 the recess 320 is the tread plate 200 also very well secured against losing.

The 4a and 4b show a further embodiment of the haptic accelerator pedal 100 , The construction of the pedal arm 300 and the tread plate 200 is basically the same as in 3a , Again, the tread plate 200 by means of two of its inside 202 in the recess 320 protruding receiving elements 210 with a shaft attached to it 214 rotatable in the wall 330 the recess 320 in the pedal arm 300 stored. Unlike the embodiment according to 3a is the signaling device 500 here as an eccentric disc 512 educated ( 4b ). The eccentric disc 512 has at least at one point a deviating from its otherwise circular shape with a radius R eccentric protrusion 514 on. At the eccentric supernatant 514 the eccentric disc has a | R increased radius. The eccentric disc 512 is eg along an axis parallel to the longitudinal axis 280 rotatably mounted.

The eccentric disc 514 thus serves as a signal element 510 and is with an actuator 520 connected, which for example in the pedal arm 300 is injected and, for example, along the longitudinal axis 280 extends. The actuator can 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 least once each turn or in each oscillation period to the inside 202 the tread plate 200 beats 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 transfers.

The signaling device arrangement 500 can generally be an actuator 520 and one with the footboard 200 in mechanical operative connection passing signal element 510 include. The actuator 520 and the signal element 510 are operatively connected, but must, as shown above embodiment with the permanent magnetic elements 530 and the coil element 522 not necessarily mechanically interconnected. 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 in a mechanical connection or an at least temporary mechanical connection of each other separately manufactured components. actuator 520 and signal element 510 can also be formed entirely separately from each other.

The actuator 520 can generally be considered as an actuator. The generation of the haptic signal in the actuator 520 For example, electrically, electromagnetically, magnetically, pneumatically, hydraulically, visually or thermodynamically (for example by supplying heat) can take place. In general, all known to those skilled actuator or actuators are conceivable. For example, the actuator 520 be designed as an electric motor or pneumatic motor or hydraulic motor for impressing a rotational movement. The actuator can also be designed, for example, as a stepper motor, linear drive, solenoid or as a pneumatic piston or pneumatic actuator or as a hydraulic piston or hydraulic actuator for imprinting a, for example, linear stroke movement ("knocking"). Particularly suitable, small-sized and inexpensive, 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 efficient, such as high-frequency current application, the efficient generation of vibrations. The actuator 520 of the embodiment of 3a and 3b For example, it can be understood as a kind of Torquer motor, without being limited to the embodiment of a Torquer motor. The in the 3a and 4a illustrated supply lines 540 can be electrical, hydraulic or pneumatic supply lines 540 represent.

The signal element 510 may be designed to transmit the haptic signal on the tread plate 200, for example, as a vibrating element having one or more cams or the tread plate 200 by an uneven weight distribution (imbalance) in a movement relative to the pedal arm 300 offset.

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 stationary or suspended accelerator pedal 100 be used.

Claims (10)

An accelerator pedal with haptic signaling, wherein the accelerator pedal (100) has 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, wherein the tread plate (200) movable on Pedal arm (300) is arranged, wherein the signal generator arrangement (500) is arranged such that the haptic signal directly from the signal transmitter assembly (500) on the tread plate (200) is transferable, wherein between the tread plate (200) and the pedal arm (300) at least one elastic element (250) is arranged, 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 (200) in the first region (204) and in the second region (206) with its inner side (202) with the at least an elastic member (250) is connected. An accelerator pedal with haptic signaling, wherein the accelerator pedal (100) has 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, wherein the tread plate (200) movable on Pedal arm (300) is arranged, wherein the signal generator arrangement (500) is arranged such that the haptic signal directly from the signal transmitter assembly (500) on the tread plate (200) is transferable, wherein between the tread plate (200) and the pedal arm (300) at least one elastic element (250) is arranged, wherein the tread plate (200) is arranged on the pedal arm (300) such that the tread plate (200) faces the pedal arm (300) in a plane transverse to a surface normal of the tread plate (200). wherein the tread plate (200) has an inner side (202) facing the pedal arm (300), wherein on the inner side (202) a first bracing element (220) and a second bracing element t (222), wherein the first brace member (220) and the second brace member (222) project into an interior space (310) and are spaced from each other along a lateral axis (284) transverse to the surface normal of the tread plate (200) at least one elastic element (250) is arranged between the first wall surface (332) of the inner space (310) and the first bracing element (220), wherein a second wall surface (334) of the inner space (310) lying opposite one of the first wall surface (334) and second tensioning element (222) another elastic element (250) is arranged, wherein the tread plate (200) by means of the elastic element (250) and the further elastic element (250) reversibly elastically deflectable connected to the pedal arm (300), characterized in that at least part of the signal generator arrangement (500) is connected between the first clamping element (220) and the second clamping element (222) in such a way dnet is that when the haptic signal is generated, the signal generator arrangement (500) can be brought into mechanical contact with the first bracing element (220) and / or the second bracing element (222) and thus the tread plate (200) is moved along the lateral axis (284) can. Accelerator pedal after Claim 1 or 2 , characterized in that the signal generator arrangement (500) is arranged in a recess (320) of the pedal arm (300). Accelerator pedal after Claim 3 characterized in that the pedal arm (300) comprises a tread plate portion (370) in which the tread plate (200) is disposed, the tread plate (200) being adjacent the recess (320). Accelerator pedal after one of Claims 1 . 3 or 4 , characterized in that the at least one elastic element (250) is formed as an elastomer layer (252). Accelerator pedal after one of Claims 1 or 3 to 5 , characterized in that the tread plate (200) is connected to at least one shaft (214), wherein the at least one shaft (214) is rotatably mounted in the pedal arm (300). Accelerator pedal after Claim 6 characterized in that the tread plate (200) comprises a third portion (205), the third portion (205) being disposed between the first portion (204) and the second portion (206), the at least one shaft (214). in the third region (205) is arranged. Accelerator pedal after Claim 7 , characterized in that the third region (205) is arranged centrally between the first region (204) and the second region (206). Accelerator pedal after Claim 6 to 8th characterized in that the at least one shaft (214) extends transversely to a tread axis (282) extending parallel to a surface normal of the tread plate (200), Accelerator pedal after one of Claims 1 or 3 to 9 , characterized in that at least one permanent magnetic element (530) is connected to the tread plate (200), wherein in the recess (320) on the pedal arm (300) to the at least one permanent magnetic element (530) facing electrically energizable coil element (522) Generating an electromagnetic field is determined, 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 the coil element (522) assigning permanent magnetic element (530) determined is.

Images