DE102016207111A1 - handlebar device - Google Patents

Abstract

The present invention relates to a link device (12) for a vehicle axle (1) associated with the wheel suspension (2) of a vehicle, comprising a first link (13) and a second link (14), wherein the first link (13) consists of a with a straight-ahead position of the wheel carrier (8) corresponding position out in the direction of the second link (14) in a pivot angle range of the wheel carrier (8) in a first steering direction increasing extent is formed movable and wherein the second link (14) from one with the straight ahead of Wheel carrier (8) corresponding position out in the direction of the first link (13) in a pivot angle range of the wheel carrier (8) in a direction opposite to the first steering direction second steering direction increasing extent is designed to be movable. To provide a particularly space-saving handlebar device (12) of the aforementioned type, the present invention proposes that the link device (12) comprises a guide track (18) and an actuator (19), wherein the guide track (18) formed approximately arcuate and with the vehicle body (10) is connectable, wherein the handlebars (13, 14) by means of vehicle-side bearing units (15, 16) of the links (13, 14) along the guide track (18) slidably connected to the guide track (18) and wherein the actuator (19) for displacing at least one of the links (13, 14) along the guide track (18) is formed.

Description

The present invention relates to a link device for a vehicle axle associated with a steerable suspension of a vehicle, comprising a first link and a second link, wherein the links are connectable by means of bearing units of the link both with a wheel carrier of the vehicle and with a vehicle body of the vehicle and in Mounting position between the wheel carrier and the vehicle body extend at least approximately in a vehicle transverse direction of the vehicle, wherein the first link is formed from a position corresponding to a straight position of the wheel carrier out in the direction of the second link in a pivot angle range of the wheel carrier in a first steering direction increasing extent movable and wherein the second link from a position corresponding to the straight-ahead position of the wheel carrier in the direction of the first link in a pivot angle range of the wheel carrier in one of the first Steering direction opposite second steering direction increasing extent is designed to be movable.

Vehicles, in particular passenger cars, are usually formed with steerable vehicle axles. Among other things, the vehicles are designed with so-called McPherson wheel suspensions in the area of steerable multi-link vehicle axles, such as steerable front axles. In addition, there are various suspension configurations with four-link, triangular wishbones or double wishbones.

With these conventional wheel suspensions, however, pivoting ranges of wheels of steerable vehicle axles are disadvantageously limited to about +/- 40 degrees and thus the maneuverability of vehicles, especially during parking operations. This results from the fact that wishbones of multi-link axles in the space required in each case for larger swivel angle ranges of the wheels space are arranged to extend substantially in the vehicle transverse direction.

In addition, from the published patent application DE 10 2012 203 382 A1 a multi-link axle with which a vehicle with improved maneuverability is executable. The multi-link axle shows a dissolved multi-link arrangement, in which a pivotable and cranked trained partial control arm is designed to be movable when turning a wheel of the vehicle in the direction of a second partial control arm in a pivot angle of a wheel carrier increasing extent. The partial control arms give by their cranked design and in conjunction with the pivoting movement a desired large swivel range of the wheels freely to represent steering angle of 90 degrees and also to be able to maneuver well with such a multi-link axle vehicle well.

A disadvantage, however, is that the cranked handlebars for displaying larger steering angle increasingly from a corresponding with a straight-ahead position of the wheels pivot position, in which occurring during operation of a vehicle wheel forces on a sufficient extent on the handlebar body side can be supported, out in the direction of the swivel angle range of Wheels releasing positions are pivoted around a pivot axis extending through the wheel side and body side fixed pivot bearing pivot axis. In the pivoted positions of the partial control arm are wheel forces compared to each corresponding to a straight-ahead position of the wheels position of the partial control arm during unfavorable operating conditions only to a limited extent on the partial control arm in the vehicle body introduced and a driving behavior of a running with such a suspension vehicle may not to the desired extent Available.

Furthermore, the cranked handlebars are characterized by high manufacturing costs and by a high space requirement, which is to provide in particular for the pivotal movement of the handlebars available. Disadvantageously, such a construction space is often not available to the required extent, which is why the known suspension can be implemented only with great design effort in existing vehicle systems.

The present invention is therefore based on the object to provide a link device of the type mentioned, which is space-saving and by means of which both a good maneuverability of a vehicle and a desired driving behavior over the largest possible operating range of the vehicle is provided.

To solve this problem, the present invention proposes a handlebar device of the type mentioned above, wherein the guide device comprises a guide track and an actuator, wherein the guide track is approximately arcuate and connectable to the vehicle body, wherein the handlebars by means of vehicle-side bearing units of the handlebar along the guideway slidably connected to the guideway and wherein the actuator is designed to move at least one of the links along the guideway.

According to a distance between vehicle-mounted bearing units of the handlebars a realizable by means of the actuator relative movement between the links changeable, wherein the second link or the first link for setting a defined support width between the vehicle-mounted bearing units of the handlebar during a pivot angle range increasing adjustment of the first link or the second link additionally in each case in the direction of the Straight ahead position of the wheel carrier corresponding position is feasible.

In contrast to known from the prior art steering devices or suspensions are the two vehicle-mounted bearing units of the handlebar and thus the handlebars of the link device according to the invention during the presentation of larger steering angle, preferably 90 degrees and possibly larger, and an associated steering operation relative to each other and each independently the movement of the other link formed by the actuator displaceable. In this case, in each case one link can be guided independently of the position of the other link in the direction of the position corresponding to the straight-ahead position of the wheel carrier.

During steering movements starting from small steering angles to larger or maximum steering angles that handlebar of the link device according to the invention, which obstructs a greater steering angle of a wheel carrier or a wheel mounted on the wheel in the current position, by means of the actuator in the direction of the other link and relative to this moves, whereby a collision between the wheel carrier or the associated wheel and the Lenkwinkelwinkel initially limiting the handlebar is avoided and a requested steering angle is enabled. The other link to which the handlebar is moved and from which the wheel carrier with the wheel mounted thereon is increasingly spaced with increasing steering angle, for example, either remains in the position corresponding to the straight ahead position of the wheel carrier, is guided into this position or is at a further advantageous embodiment of the link device according to the invention optionally even beyond the position corresponding to the straight position of the wheel out adjustable to body side to achieve the greatest possible support width between the links and provide a desired good handling even at high steering angles, without the handlebar at low support widths between The handlebars each applied high forces according to massive and constructively complex to perform.

This advantageously ensures that even with large steering angles, such as 90 degrees and greater, with respect to the straight-ahead position of the wheel or the wheel carrier, the distance between vehicle-mounted bearing units of the handlebar both during the relative movement of a link in the direction of the other arm as well as in the final position is maximally durable or adjustable at maximum steering angle and between the two links operating state dependent depending on the largest possible angle and an associated large support width is achieved or the handlebars are spread apart as far as possible.

Thus, an improved stability of the dissolved wishbone or wishbone and thus the entire formed with the link device according to the invention wheel suspension is achieved and acting from the wheel on the wheel carrier to the suspension forces are absorbed by the link device according to the invention in this auspicious scope. Furthermore, the link device according to the invention can be produced with rod-like, rectilinearly designed links and can be implemented in existing vehicle systems in a cost-effective and space-saving manner.

The steering device according to the invention is particularly suitable for use in the field of drivable steerable vehicle axles, the wheels are driven directly by an arranged respectively in the wheels electric hub drive, which are carried out without extending in the vehicle transverse direction between an axle differential and the wheels drive shafts conventional drivable vehicle axles.

In the present case, the terms swivel angle, steering angle and steering angle respectively represent synonyms for describing a magnitude of a pivotal movement of at least one wheel carrier and a wheel of a steerable vehicle axle coupled thereto.

The linkage device according to the invention can be used, for example, instead of a lower and / or an upper wishbone control arm of a double wishbone arrangement or as part of a dissolved multi-link arrangement in order to be able to operate a vehicle with high steering angle impacts.

In the present invention, an approximately arcuate, in particular circular path, trained and connectable to the body of a vehicle guideway is provided, with which the handlebars are movably connected via the vehicle-side storage units and along the handlebars with their vehicle-side storage units in a distance between them varying extent are stored adjustable. Thereby is the relative movement of the invention between the handlebar or the independently representable movements of each individual handlebar with little design effort along the guideway geometrically defined feasible and the link device can be mounted as a preassembled module with little effort. With only moderately high steering angle impacts, it may be sufficient to keep the distance between the links constant and to move both links evenly along the guideway.

The guideway is either in one piece executable depending on the particular application or may also include several individual guideway segments, the link device in the latter embodiment with higher degree of freedom of available space is adaptable and therefore greater design freedom in the design of the suspension is given.

Another advantage of a guideway and with this over the vehicle-mounted bearing units movably connected handlebar is the low, especially in Fahrzeughochrichtung required space. The space requirement of the link device according to the invention in conjunction with a guideway is also comparable with respect to a vehicle horizontal plane with that of a known from the prior art rigid wishbone, with which, however, only small steering angle can be realized.

Particularly advantageous is the actuator, which is designed to move at least one of the links along the guideway. In a preferred embodiment, each of the links is assigned its own actuator. In the case of two links, the link device then comprises two actuators, which can be operated independently of one another.

If the handlebar device according to the invention is designed with a stop device by means of which a movement of the links for varying the distance between the links can be limited, a defined position of one of the links or both links relative to one another can be fixed in a simple manner.

In a further advantageous embodiment, the stop means each limits a movement of the handlebars beyond the position corresponding to the straight-ahead position of a wheel carrier and / or limits the stop device a movement of the handlebars via an adjustment of a link from the position corresponding to the straight ahead position of a wheel carrier out in Direction of the other link in a pivot angle range of a wheel carrier in the first or in the second steering direction increasing extent, which advantageously ensures that the links are not movable beyond the positions corresponding to the straight-ahead position.

In a very advantageous embodiment of the present invention it is provided that the actuator has a clamping element for releasably clamping the actuator to the guide track. By means of the clamping element of the actuator is fixed at a certain point on, in or on the guideway. This point serves as a reference point for a displacement of a handlebar along the guideway.

In a further very advantageous embodiment of the present invention, the actuator has a thrust element for displacing at least one of the links along the guideway. The push member may also be a tension member or a combined push / pull member to push or pull the handlebar along the guideway.

In an optimal embodiment of the present invention, the actuator comprises both a clamping element and a push / pull element. Thus, the actuator is releasably lockable at any point of the guideway and formed from there to move at least one of the links.

In a particularly advantageous embodiment of the present invention, it is provided that the actuator is integrated in a bearing shell in contact with the guide track or in a bearing saddle in contact with the guide track of one of the vehicle-mounted bearing units. In such an arrangement, the actuator sits directly on the guideway to effect clamping and / or displacement. Furthermore, the integration of the actuator in already existing components of the link device represents a space-saving solution.

In another advantageous embodiment of the present invention, the actuator has a piezoelectric element or a hydraulic muscle or cylinder or a pneumatic muscle or cylinder or an element made of an anisotropic flexible magnetic material, based on a rubber-like plastic and embedded barium ferrite powder. Preferably, the actuator, more preferably a plurality of piezoelectric elements. Piezoelectric elements are components that change their geometric extension when an electrical voltage is applied to them. The piezoelectric elements, alone or in combination with other components, preferably form a ring-like sleeve which encloses and can clamp the guideway. Are two or several such cuffs connected by means of piezoelectric elements together, an alternating or continuous energization of the elements leads to a continuous clamping-sliding-clamping-sliding movement or even creeping movement of the actuator along the guide track, whereby the actuator associated with the handlebar along the guideway is moved. Shifting speeds of up to 10 cm / s can be achieved by means of a series connection of the piezoelectric elements. In summary, it is advantageous if the clamping element has one or more piezoelectric elements and the thrust element has one or more piezoelectric elements. For example, a plurality of piezoelectric elements are two, three, four, five, six, eight, or ten piezoelectric elements.

In an alternative embodiment of the present invention, it is provided that the pushing element has a cavity which can be filled with a fluid for applying an overpressure to at least one of the handlebars. Preferably, the pusher element comprises two or three cavities, which are in operative connection with the first link and the second link. An overpressure in one of the cavities leads to a deflection and thus displacement of the handlebar along the guideway to a cavity with lower pressure. Fluids according to the invention are, for example, water, oil and preferably air. Air has the advantage that it is ubiquitous and does not increase the system weight. Furthermore, a leakage of the cavity does not lead to environmental damage and can be compensated by an increased flow rate.

For this purpose, it is expedient that the actuator has a control valve, wherein the control valve is connected to the cavity hydraulically or pneumatically conductive. In particular, the control valve controls the pressure ratios in all the cavities to provide pressure differences between the cavities that cause displacement of the handlebar along the guideway. Regularly, the control valve will be operatively connected to a pump for pumping the fluid. The connections between the cavity and the control valve and the control valve and the pump are designed as hoses or pipes.

In a particularly advantageous embodiment of the present invention, the cavity is formed by means of a flexible container. The flexible container is an environmentally isolated bladder for receiving the fluid. The bladder may for example be a balloon or a bellows and act as a thrust element and / or clamping element of the actuator.

In a very advantageous embodiment of the present invention it is provided that the flexible container is arranged within the guideway. Since the guideway is preferably formed by a hollow round tube, a protected from negative environmental influences hollow interior of the round tube is available to arrange in particular three flexible container. The three flexible containers are separated by the two links and locked in the guideway by means of end pieces of the guideway, which may be stop devices. Each of the three flexible containers is in hydraulic or pneumatic communication with the control valve. Depending on the pressure distribution in the three flexible containers, the first link and the second link experience a determination of their position or a shift of their position along the guideway.

Alternatively to the embodiment described above, the flexible container may be arranged outside the guideway. In particular, the flexible container may be formed ummantelnd the guideway. These configurations are particularly useful when the guideway may have hollow interior. In an external arrangement, the flexible container is anisotropically flexible. The anisotropically flexible container expands substantially only in a longitudinal direction, which is preferably oriented parallel to the guideway.

In a structurally very simple and therefore robust embodiment of the present invention, it is provided that the cavity is formed by means of the guide track. For this purpose, the guide track is formed fluid-tight. A flexible container is then obsolete.

The present invention will be described by way of example in several preferred embodiments with reference to the drawings, wherein further advantageous details are shown in the figures of the drawings.

The figures of the drawings show in detail:

1a a partial perspective view of a steerable vehicle axle with a conventionally designed upper linkage and inventively designed lower linkage device comprising the suspension;

1b a schematic perspective view of the suspension according to 1a ;

2a a schematic plan view of the lower link device of the suspension according to 1a as well as a cooperating one Wheel and a turn operatively connected wheel both in a corresponding to a straight-ahead position of the wheel operating condition and in a pivoted to this operating condition of the wheel;

2 B a schematic plan view of the lower link device, the wheel carrier and the wheel of the steerable vehicle axle according to 1a in an operating state corresponding to the straight-ahead position of the wheel, and in a further operating state in which the wheel is pivoted substantially 90 degrees with respect to its straight-ahead position;

3 a schematic perspective view of an actuator according to the present invention;

4a a schematic plan view of the lower link device according to another embodiment of the present invention in a corresponding to the straight-ahead position of the wheel-wheel unit operating condition;

4b a schematic plan view of the lower link device according to 4a in another operating condition, in which the wheel carrier wheel unit is pivoted about 80 degrees from its straight ahead position;

5a a schematic plan view of the lower link device according to another embodiment of the present invention in a corresponding to the straight-ahead position of the wheel-wheel unit operating condition;

5b a schematic plan view of the lower link device according to 5a in another operating condition, in which the wheel carrier wheel unit is pivoted about 80 degrees from its straight ahead position;

6a a schematic plan view of the lower link device according to yet another embodiment of the present invention in a corresponding to the straight-ahead position of the wheel-wheel unit operating condition; and

6b a schematic plan view of the lower link device according to 6a in a further operating state, in which the wheel carrier wheel unit is pivoted about 80 degrees from its straight-ahead position.

The 1a shows a partial perspective view of a steerable vehicle axle 1 with a conventionally designed upper linkage 3 and an inventively designed lower link device 12 having suspension 2 and the 1b shows a schematic perspective view of the suspension 2 according to 1a , The suspension 2 includes an upper linkage 3 , which is designed as a rigid wishbone. The upper linkage 3 is in the connection area 4 from two handlebars 5 . 6 via a presently designed as a ball joint connecting joint 7 with a wheel carrier 8th connected to the operation of one with the vehicle axle 1 equipped vehicle in the area of one with the wheel carrier 8th connected wheel 9A attacking wheel forces, such as transverse and longitudinal forces, over the upper linkage 3 in the area of a vehicle body 10 to be able to record. This is the upper linkage 3 in the area of vehicle-mounted storage units 11 in a defined extent movable with the vehicle body 10 connected to a compression and rebound of the wheel 9A and the associated wheel carrier 8th in a manner known per se. Movements of the wheel carrier 8th opposite the vehicle body 10 be to provide a desired high ride comfort via a spring-damper unit 112 cushioned and damped in a conventional manner. An apron 9 serves to shield a brake disc of the wheel carrier 8th ,

In addition, the suspension includes 2 a lower linkage device 12 with a first handlebar 13 and a second handlebar 14 that have storage units 15 . 16 . 17 both with the vehicle body 10 as well as with the wheel carrier 8th in operative connection and in installation position between the wheel 8th and the vehicle body 10 extend at least approximately in the vehicle transverse direction y.

The two handlebars 13 . 14 the lower linkage device 12 are presently movable relative to each other. Here are the first handlebar 13 from one with the straight-ahead position of the wheel carrier 8th corresponding position out in the direction of the second link 14 in a swivel angle range of the wheel carrier 8th in a first steering direction R increasing circumference and the second link 14 from one with the straight-ahead position of the wheel carrier 8th corresponding position out in the direction of the first link 13 in one the swivel angle range of the wheel carrier 8th in a direction to the first steering direction R opposite second steering direction L increasing extent movable executed. Here is the wheel carrier 8th aligned in its straight-ahead position parallel to a vehicle longitudinal direction x. For the sake of completeness, the vehicle vertical direction z is also indicated.

For this purpose, an at least approximately arcuate running and with the vehicle body 10 connected guideway 18 provided with the handlebars 13 . 14 on the vehicle side stock items 15 . 16 the driver 13 . 14 are movably connected and along the handlebars 13 . 14 with their vehicle-mounted storage units 15 . 16 in a distance A between the vehicle-mounted storage units 15 . 16 varying extent are stored adjustable.

The vehicle-mounted storage units 15 . 16 are executable, for example, as a plain bearing or as a rolling bearing, wherein the vehicle-mounted storage units 15 . 16 the preferably tubular guide rail 18 in full or depending on the particular application case or the guideway 18 only encompass such a circumferential angle, that an automatic release of the handlebars 13 . 14 in the area of the vehicle-mounted storage units 15 . 16 from the guideway 18 by a positive connection between the vehicle-mounted storage units 15 . 16 and the guideway 18 is safely avoided.

The distance A between the vehicle-mounted storage units 15 . 16 the two handlebars 13 . 14 the lower linkage device 12 is in the above scope each by a relative movement between the links 13 . 14 accordingly changeable. It may be provided that the first link 13 or the second handlebar 14 for setting a defined support width between the vehicle-mounted storage units 15 . 16 the driver 13 . 14 during one the swivel angle range of the wheel carrier 8th increasing adjustment of the first link 13 or the second link 14 each in the direction of the straight-ahead position of the wheel carrier 8th corresponding position is feasible. The handlebars 13 . 14 the lower linkage device 12 are in the range of their wheel carrier bearing unit 17 via a bearing unit designed as a swivel joint, preferably as a ball joint, with the wheel carrier 8th in active connection. The wheel carrier bearing unit 17 is present as a common pivot with a degree of freedom for the two handlebars 13 . 14 executed. Deviating from this, in turn, depending on the particular application, the possibility that the handlebar 13 . 14 each with a separate pivot with the wheel 8th are connected.

Next to the guideway 18 includes the handlebar device 12 an actor 19 , where the handlebars 13 . 14 by means of the vehicle-side storage units 15 . 16 the driver 13 . 14 along the guideway 18 slidable with the guideway 18 are connected and where the actuator 19 for moving at least one of the handlebars 13 . 14 along the guideway 18 is trained. A possible displacement area along the guideway 18 is by means of anchor devices 20 limited.

In the with the straight-ahead position of the wheel carrier 8th corresponding positions of the handlebars 13 . 14 are each steering angle of the wheel carrier 8th or the associated wheel 9A in the steering direction L or the steering direction R preferably up to steering angles of about 50 degrees starting from the straight-ahead position possible without the handlebars 13 . 14 this in a the distance A between the handlebars 13 . 14 or between the vehicle-mounted storage units 15 . 16 decreasing extent each from their with the straight-ahead position of the wheel carrier 8th corresponding positions are to be moved. To larger steering angle, that is preferably greater than 50 degrees and up to 90 degrees or even beyond, starting from the straight-ahead position of the wheel carrier 8th to enable are the handlebars 13 . 14 each from the in 1b shown position in the direction of the other link 13 . 14 by means of the actuator 19 slidably executed.

The 2a shows a schematic plan view of the lower link device 12 the suspension 2 according to 1a and a cooperating wheel carrier 8th and a wheel in turn operatively connected to it 9A both in one with a straight-ahead of the wheel 9A corresponding operating state as well as in a pivoted to operating state of the wheel 9A and the 2 B shows a schematic plan view of the lower link device 12 , the wheel carrier 8th and the wheel 9A the steerable vehicle axle 1 according to 1a in one with the straight-ahead position of the wheel 9A corresponding operating state and in a further operating state in which the wheel 9A is pivoted substantially 90 degrees from its straight ahead position.

Shown are the lower linkage device 12 and one from Radträger 8th and wheel 9A existing wheel carrier wheel unit 99A in straight ahead position or same wheel carrier wheel unit 99B in a pivoted position. In 2a is the wheel carrier wheel unit 99B in the steering direction R with respect to the straight-ahead position of the wheel 9A merely struck by a steering angle, in which a pivoting movement of the handlebar 13 in the direction of the handlebar 14 just not needed yet. In contrast, shows 2 B a steering angle of the wheel 9A in the steering direction R starting from the straight-ahead position of the wheel 9A about a steering angle of about 90 degrees, in the representation of the handlebar 13 in a distance A between the wheel-side bearing units 15 . 16 the driver 13 . 14 reducing scope from his with the straight-ahead of the wheel 9A corresponding position in the direction of the handlebar 14 is displaced. To provide this adjusting movement of the handlebar 13 in the direction of himself still in his with the straight ahead of the wheel 9A corresponding Swivel position located handlebar 14 will the in the 1 and 2 not shown actuator 19 used.

The 3 shows a schematic perspective view of an actuator 19 according to the present invention. The actor 19 is on the guideway 18 arranged and has three clamping elements 300 for releasably clamping the actuator 19 at the guideway 18 and two push elements 301 to move one of the in 3 handlebars not shown 13 . 14 along the guideway 18 on. The push element 301 is designed as a combined push / pull element. Each of the clamping elements 300 can as a bearing ring or a part of a bearing ring of one of the vehicle-mounted storage units 15 . 16 the driver 13 . 14 be executed, wherein the bearing ring the guideway 18 encloses like a cuff. Each of the clamping elements 300 includes four piezoelectric elements 302 for changing the radius of the clamping element 300 and thus for clamping or releasing the actuator 19 at the guideway 18 , Each of the pushers 301 includes four piezoelectric elements 303 for relative displacement of the clamping elements 300 with each other and thus to move one of the handlebars 13 . 14 along the guideway 18 ,

An exemplary procedure for moving the first link 13 , with the right clamping element 300 firmly connected, along the guideway 18 from left to right is as follows: The piezoelectric elements 302 all clamping elements 300 are power-free, so all clamping elements 300 on the guideway 18 terminals. The piezoelectric elements 303 all push elements 301 are power-free, so all pushers 301 are contracted. By energizing the piezoelectric elements 302 the middle and right clamping element 300 become the middle and right clamping element 300 from the guideway 18 solved. By energizing the piezoelectric elements 303 all push elements 301 become the middle and right clamping element 300 along the guideway 18 pushed to the right. By a Entstromen the piezoelectric elements 302 the right clamping element 300 becomes the right clamping element 300 on the guideway 18 clamped in a right-shifted position. By energizing the piezoelectric elements 302 of the left clamping element 300 becomes the left clamping element 300 from the guideway 18 solved. By a Entstromen the piezoelectric elements 303 all push element 301 become the left and middle clamping element 300 along the guideway 18 pulled to the right. By a Entstromen the piezoelectric elements 302 of the left and middle clamping element 300 become the left and middle clamping element 300 on the guideway 18 clamped in a right-shifted position. Now a new shift cycle begins. In addition to this exemplary process, there are other alternative procedures to move the handlebars 13 . 14 along the guideway 18 to realize.

The 4a shows a schematic plan view of the lower link device 12 according to another embodiment of the present invention in one with the straight ahead position of the wheel carrier wheel unit 99A corresponding operating state and the 4b shows a schematic plan view of the lower link device 12 according to 4a in another operating condition, in which the wheel carrier wheel unit 99B is pivoted about 80 degrees compared to their straight-ahead position. The handlebars 13 . 14 are by means of their vehicle-mounted storage units 15 . 16 at the guideway 18 slidably supported.

The actuator provided for this purpose 19 has three clamping elements 300 and three pushers 301 on. Each of the pushers 301 has an air-fillable cavity 304 for applying an overpressure to one or both of the handlebars 13 . 14 on. Each of the three cavities 304 is by means of a flexible container 306 formed, preferably by means of a balloon. The flexible containers 306 are inside the guideway 18 arranged and clamp there at a corresponding overpressure. Consequently, the flexible containers represent 306 both the clamping elements 300 as well as the pushers 301 ready. Via a control valve 305 of the actor 19 which with the flexible containers 306 and one in 4 not shown pump is pneumatically conductively connected, are the pressures in the flexible containers 306 controllable. So that the air hoses from the control valve 305 to the flexible containers 306 can be laid and when the handlebars are moved 13 . 14 are trackable, is the round tube-shaped guideway 18 Run slotted, with the air hoses from an exterior of the guideway 18 through the slot into an interior of the guideway 18 are guided. Furthermore, each of the handlebars 13 . 14 a in 4 not shown driving element, by means of which the handlebar 13 . 14 with at least one of the flexible containers 306 is in active connection. The driving element may, for example, one in the interior of the guideway 18 arranged plate, by means of a slot passing through the rod with the handlebar 13 . 14 connected is.

For example, the handlebar 14 from that with the straight-ahead wheel-hub unit 99A corresponding position in the opposite to the straight-ahead position of the wheel carrier-wheel unit 99A pivoted about 80 degrees position, corresponding to position of the wheel-carrier unit 99B , to pivot, controls the control valve 305 the pressures in the flexible containers 306 as follows: The pressure in the left flexible container 306 is kept constant. The pressure in the middle flexible container 306 is reduced. The pressure in the right flexible container 306 will be raised. Due to the pressure difference between the middle and the right flexible container 306 A leftward force acts as the middle flexible container 306 compressed and the right flexible container 306 expanded. The changing dimensions of the middle and the right flexible container 306 act on the handlebars 14 in that as the right flexible container 306 the handlebar 14 along the guideway 18 moves to the left.

The 5a shows a schematic plan view of the lower link device 12 according to another embodiment of the present invention in one with the straight-ahead position of the wheel carrier wheel unit 99A corresponding operating state and the 5b shows a schematic plan view of the lower link device 12 according to 5a in another operating condition, in which the wheel carrier wheel unit 99B is pivoted about 80 degrees compared to their straight-ahead position. The actor 19 according to 5 is very similar to the actuator 19 according to 4 built with the difference that the flexible containers 306 outside the guideway 18 are arranged and the guideway 18 wrap. In this embodiment, no entrainment is required because the flexible container 306 directly on the vehicle-mounted storage units 15 . 16 or the handlebars 13 . 14 can influence themselves. A slotted guideway 18 is also obsolete.

The 6a shows a schematic plan view of the lower link device 12 according to yet another embodiment of the present invention in one with the straight ahead position of the wheel carrier wheel unit 99A corresponding operating state and the 6b shows a schematic plan view of the lower link device 12 according to 6a in another operating condition, in which the wheel carrier wheel unit 99B is pivoted about 80 degrees compared to their straight-ahead position. The actor 19 according to 6 is very similar to the actuator 19 according to 5 built with the difference that the flexible containers 306 the guideway 18 not encasing, but next to the guideway 18 are arranged. The flexible containers 306 can be relative to the guideway 18 as in 6 be shown on the vehicle side or be arranged wheel carrier side.

LIST OF REFERENCE NUMBERS

1

vehicle axle

2

Arm

3

link means

4

connecting area

5

handlebars

6

handlebars

7

connecting joint

8th

wheel carrier

9

mudguard

9A

wheel

10

vehicle body

11

Vehicle-side storage unit

12

handlebar device

13

First handlebar

14

Second handlebar

15

Vehicle-side storage unit

16

Vehicle-side storage unit

17

Wheel carrier bearing unit

18

guideway

19

actuator

20

stop device

99A

Wheel and wheel assembly

99B

Wheel and wheel assembly

112

Spring-damper system

300

clamping element

301

push element

302

Piezoelectric element

303

Piezoelectric element

304

cavity

305

control valve

306

Flexible container

A

distance

L

steering direction

R

steering direction

x

Vehicle longitudinal direction

y

Vehicle transverse direction

z

Vehicle vertical direction

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102012203382 A1 [0004]

Claims (13)

Handlebar device ( 12 ) for a steerable vehicle axle ( 1 ) associated suspension ( 2 ) of a vehicle, comprising a first link ( 13 ) and a second handlebar ( 14 ), whereby the handlebars ( 13 . 14 ) by means of storage units ( 15 . 16 . 17 ) the driver ( 13 . 14 ) with both a wheel carrier ( 8th ) of the vehicle as well as with a vehicle body ( 10 ) of the vehicle are connectable and in installation position between the wheel carrier ( 8th ) and the vehicle body ( 10 ) extend at least approximately in a vehicle transverse direction (y) of the vehicle, wherein the first link ( 13 ) from one with a straight-ahead position of the wheel carrier ( 8th ) corresponding position out in the direction of the second link ( 14 ) in a swivel angle range of the wheel carrier ( 8th ) is designed to be movable in a first steering direction increasing extent and wherein the second link ( 14 ) from one with the straight-ahead position of the wheel carrier ( 8th ) corresponding position out in the direction of the first link ( 13 ) in one of the swivel angle range of the wheel carrier ( 8th ) is designed to be movable in a direction to the first steering direction opposite second steering direction increasing extent, characterized in that the link device ( 12 ) a guideway ( 18 ) and an actor ( 19 ), wherein the guideway ( 18 ) formed approximately arcuate and with the vehicle body ( 10 ) is connectable, whereby the handlebars ( 13 . 14 ) by means of vehicle-mounted storage units ( 15 . 16 ) the driver ( 13 . 14 ) along the guideway ( 18 ) displaceable with the guideway ( 18 ) and wherein the actuator ( 19 ) for moving at least one of the handlebars ( 13 . 14 ) along the guideway ( 18 ) is trained. Handlebar device ( 12 ) according to claim 1, characterized in that the actuator ( 19 ) a clamping element ( 300 ) for releasably clamping the actuator ( 19 ) at the guideway ( 18 ) having. Handlebar device ( 12 ) according to claim 1 or 2, characterized in that the actuator ( 19 ) a pusher element ( 301 ) for moving at least one of the handlebars ( 13 . 14 ) along the guideway ( 18 ) having. Handlebar device ( 12 ) according to one of the preceding claims, characterized in that the actuator ( 19 ) in one with the guideway ( 18 ) in contact bearing shell or one with the guideway ( 18 ) in contact bearing seat of one of the vehicle-mounted storage units ( 15 . 16 ) is integrated. Handlebar device ( 12 ) according to one of the preceding claims, characterized in that the actuator ( 19 ) a piezoelectric element ( 302 . 303 ) or a hydraulic muscle or cylinder or a pneumatic muscle or cylinder or an element of an anisotropic flexible magnetic material, based on a rubber-like plastic and embedded barium ferrite powder. Handlebar device ( 12 ) according to claim 2 and 3, characterized in that the clamping element ( 300 ) a piezoelectric element ( 302 ) and the pushing element ( 301 ) a piezoelectric element ( 303 ) exhibit. Handlebar device ( 12 ) according to claim 3, characterized in that the pusher element ( 301 ) a fluid-fillable cavity ( 304 ) for applying an overpressure to at least one of the handlebars ( 13 . 14 ) having. Handlebar device ( 12 ) according to claim 7, characterized in that the actuator ( 19 ) a control valve ( 305 ), wherein the control valve ( 305 ) with the cavity ( 304 ) is connected hydraulically or pneumatically conductive. Handlebar device ( 12 ) according to claim 7 or 8, characterized in that the cavity ( 304 ) by means of a flexible container ( 306 ) is formed. Handlebar device ( 12 ) according to claim 9, characterized in that the flexible container ( 306 ) within the guideway ( 18 ) is arranged. Handlebar device ( 12 ) according to claim 9, characterized in that the flexible container ( 306 ) outside the guideway ( 18 ) is arranged. Handlebar device ( 12 ) according to claim 11, characterized in that the flexible container ( 306 ) the guideway ( 18 ) is formed ummantelnd. Handlebar device ( 12 ) according to claim 7 or 8, characterized in that the cavity ( 304 ) by means of the guideway ( 18 ) is formed.

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