Vehicle target and method for manufacturing the vehicle target

Abstract

The present invention describes a vehicle target (100) for testing sensors in a vehicle driver assistance system. The vehicle target (100) comprises an outer skin (101) defining the exterior geometric shape of the vehicle target (100), wherein the outer skin (101) at least partially encloses an interior volume (Vi). The vehicle target (100) further comprises at least one panel (102, 112) having a substrate (103) and a radar absorbing or reflective layer (105) attached to the substrate (103), the panel (102, 112) being attached to the outer skin (101) such that at least the radar absorbing or reflective material / layer (105) has an offset (109) relative to the outer skin (101) in a direction toward the interior volume (Vi).

Description

Technical Field

[0001] The present invention relates to a vehicle target for testing sensors of a vehicle driver assistance system. Further, the present invention relates to a method for manufacturing a vehicle target for testing sensors of a vehicle driver assistance system.

Background Art

[0002] Collision targets such as vehicle targets for testing sensors of a vehicle driver assistance system are generally very lightweight and have a hollow structure with an internal volume. The vehicle target is movable and crosses a predetermined path of a vehicle under test equipped with a driver assistance system. The vehicle target is attached to a drivable platform by a support structure disposed in a space between the bottom surface of the vehicle target and the surface of the platform. Thus, there is no free space between the bottom of the vehicle target and the surface of the drivable platform. However, in contrast to this, an actual vehicle is placed on a road by wheels, where a free space is provided between the wheels, the bottom of the vehicle, and the road.

[0003] For example, in order to avoid confusion of a radar sensor of a sensor system of a vehicle driver assistance system due to the design of the vehicle target, specifically due to internal reflection of waves, particularly light waves and / or radar waves, in the interior of the vehicle target coming from the hollow structure of the vehicle target, the lower / bottom area of the vehicle target is covered, for example, by a plate-like element / panel provided with a material / layer that absorbs or reflects radar.

[0004] However, since there is no longer a free space between the bottom and the road or the platform of the vehicle target, the shape of the shadow of the main body of the vehicle target is different from that of an actual vehicle. Thus, the sensor system of the vehicle driver assistance system can be confused.

Summary of the Invention

[0005] Therefore, it may be necessary to provide more realistic vehicle targets for testing driver assistance systems.

[0006] This requirement is not, for example, due to the vehicle targets for testing the sensors of the vehicle driver assistance systems described in the separate section, or the respective methods for producing the vehicle targets.

[0007] According to a first aspect of the present invention, a vehicle target is provided for testing sensors of a vehicle driver assistance system. The vehicle target comprises an outer panel defining the outer geometric shape of the vehicle target, wherein the outer panel at least partially encloses the internal volume. The vehicle target further comprises a substrate and at least one panel having a radar-absorbing or reflecting layer attached to the substrate. The panel is attached to the outer panel, so that at least the radar-absorbing or reflecting material / layer has an offset relative to the outer panel in the direction toward the internal volume.

[0008] In a further embodiment, a method for manufacturing the above-mentioned vehicle target is provided.

[0009] The vehicle target comprises an outer panel that defines the outer geometric shape of the vehicle target. The outer panel defines the outer shell of the vehicle target. The outer panel may be made of several self-carrying foam panels that are assembled together to form the desired shape and design of the outer panel representing the car, for example. The vehicle target is placed on a movable lower platform configured to be driven along the ground. Between the lower platform and the bottom side of the vehicle target, panels may be placed, for example, between the front wheel section and the rear wheel section.

[0010] The exterior panel may further have transparent sections, for example, to simulate the windows or lights of the car. Furthermore, the exterior panel may have wheel sections that simulate the actual wheels of the car. The actual sections may simply visually represent non-rotating wheels. For example, the wheel sections may be created by paint or stickers adhered to the outer surface of the exterior panel. A gap may be formed between the wheel sections and the surrounding portion of the exterior panel, for example, by a groove, where a wheel arch can be simulated along the outer circumference by, for example, paint, stickers or additional foaming elements. Additional elements, such as reflectors that simulate the lights of the vehicle, may be placed on the exterior panel. The exterior panel may be attached to an inner support structure, for example, which includes beams mounted on a drivable platform.

[0011] The panel comprises a substrate to which a layer that absorbs or reflects radar is attached. If the layer is made of an absorbing material, radar waves can be absorbed. Thus, it can be ensured that radar waves are not reflected by, for example, internal support structures of a vehicle target that fix the vehicle target to a platform or the like. For example, if a panel or transparent panel is not used on the underside of the outer panel, radar waves are radiated under the outer panel and reflected by elements such as support structures in the internal volume, which generates measurements for each sensor of the driver assistance system.

[0012] However, if the layer contains reflective material, a predetermined reflection direction can be controlled by the alignment of the panel. For example, the panel can be adjusted so that radar waves are not reflected at 180°, and radar waves are reflected but no error measurement occurs.

[0013] Therefore, the panel can reduce or prevent the reflection of radar waves from the structure below the vehicle target to the radar sensor. Thus, although support structures and the like are positioned below the vehicle target, the empty space below the vehicle target can be simulated for the radar sensor, and as a result, it becomes possible to simulate an actual vehicle that has empty space below the bottom.

[0014] Radar-absorbing materials can be made from foamed materials that do not have a particularly uniform surface. For example, foamed materials may have a surface with a small raised structure. Furthermore, absorbing materials can be made from polymer materials containing conductive particles such as conductive carbon or soot particles. Specifically, absorbing materials may have destructive interference properties.

[0015] Materials that reflect radar may have conductive surfaces that support their reflective properties, particularly with respect to radar waves.

[0016] The substrate forms a support structure for the radar-absorbing or reflecting layer. The substrate is made of rigid foam and may include, for example, coupling elements that are bonded to the outer panel of a vehicle target. Specifically, the respective panels are positioned below the front bumper and below the rear bumper. In addition, the respective panels may be positioned behind the wheel wells.

[0017] According to the present invention, the panel has offsets in the direction of the internal volume of the vehicle target and in the direction of the outer panel. The offsets define the distance between the panel and the outer contour of the outer panel, respectively. Specifically, the panel is spaced away from the edge of the outer panel. The offsets specifically define the distance between the edge of the panel that is in contact with the outer panel and the bottom and side edges of the outer panel from which the outer panel extends.

[0018] Therefore, the shape of the shadow generated by the outer panel, including the edges, is not affected by the panel. This is because the panel is positioned further inward and spaced away from the edges. Consequently, interference with the light sensors of the driver assistance system between the actual vehicle and the vehicle / target according to the present invention is reduced. This is because no artificial shadows are generated by the radar-absorbing or reflective panel.

[0019] Therefore, to provide and display the natural shadow of the vehicle target which is important to the sensor under test, such as a camera sensor or radar sensor, the outer edge of the panel may have a geometric offset in the direction from the outer panel to the internal volume of the vehicle target relative to other external surfaces (doors, mudguards, front bumper, and rear bumper). Thus, the edge or other part of the panel does not protrude from the external geometric shape of the vehicle target (e.g., the outer panel and other external surfaces such as reflectors), and thereby the natural shadow of the vehicle target 100 is not affected by the panel.

[0020] According to a further exemplary embodiment, at least two panels are rotatably joined together. In other words, the vehicle target comprises a further panel rotatably joined to the panel, for example by a hinge. The further panel may also have a radar-reflecting or absorbing layer disposed on a further substrate. Thus, if deformation of the outer panel occurs due to a collision, the panel may pivot around the hinge to prevent further deformation of the panel.

[0021] According to further exemplary embodiments, at least two panels are joined together in a removable manner by their respective removable fastening elements, such as hook-and-loop fasteners, chucks, and / or screw connections.

[0022] According to further exemplary embodiments, the panel is detachably attached to the outer body or inner support structure of a vehicle target by respective detachable fastening elements, such as hook-and-loop fasteners, chucks and / or screw connections.

[0023] Additionally or alternatively, the panel may be attached to the outer panel or inner support structure of the vehicle target by an elastic element, such as an elastically deformable belt or strip (e.g., a rubber strap). The elastic element may be attached to the panel and outer panel or support structure of the vehicle target in such a manner that the elastic element remains connected to the vehicle target even if a further object (such as the vehicle under test) collides with the vehicle target. Thus, even if a removable fastening element, such as hook-and-loop fasteners, detaches the panel from the outer panel in the event of a collision, the elastic element still holds the panel close to the vehicle target. This may thus allow for faster reassembly of the vehicle target after a collision, because the detached panel is still close to the vehicle target.

[0024] According to further exemplary embodiments, the substrate is at least partially transparent to waves, particularly light waves and / or radar waves.

[0025] According to further exemplary embodiments, the outer surface of the panel is corrugated. Therefore, the risk of direct reflection of radar waves, which could cause measurement errors in the radar sensor, can be reduced. Additionally or alternatively, the outer surface of the panel may have multiple protrusions and grooves or holes to reduce the risk of direct reflection of radar waves to each sensor. Therefore, the outer surface of the panel does not have to be flat to reduce optical reflection.

[0026] According to further exemplary embodiments, the outer surface of the panel facing the vehicle target environment has a gray and / or matte color. Thus, specifically, the reflection of light waves can be reduced to reduce the risk of measurement errors in the light sensors of the driver assistance system.

[0027] According to a further exemplary embodiment, the material / layer that absorbs or reflects radar is disposed on the base body of the panel on the inner surface of the base body facing the internal volume. Specifically, the inner surface is the surface opposite to the outer surface. Specifically, the inner surface of the base body has a normal facing the internal volume of the outer panel. The material that absorbs or reflects radar is positioned on the inner side (i.e., the inner surface) of the panel and on the base body respectively. Specifically, the panel comprises a base body that is transmissive to wave 111 which is a specific light wave and / or radar wave. A layer 105 of the material that absorbs or reflects radar is disposed with respect to the inner surface of the base body.

[0028] According to a further exemplary embodiment, the base body comprises a side surface connecting the inner surface and the outer surface of the base body, where the material / layer that absorbs or reflects radar is disposed on the side surface of the base body. Accordingly, reflection or absorption of a wider range of radar waves is provided.

[0029] According to a further exemplary embodiment, the absorption / reflection layer extends non-parallel to the vertical direction. In other words, the absorption / reflection layer has a normal that is non-vertical with respect to the horizontal direction. In other words, the vehicle target can be disposed on a support surface that is generally parallel to the horizontal plane. The normal of the support surface can be parallel to the vertical direction.

[0030] According to a further exemplary embodiment, the outer panel comprises a wheel portion including a visual representation of an actual wheel, where the outer panel includes a gap around the wheel portion for the representation of the wheel arch. The panel is attached to the gap in the inner surface of the outer panel opposite to the wheel portion and / or the wheel portion. The offset of the panel attached to the wheel portion can be determined by the distance between the front edge of the outer panel and the panel disposed on the front wheel portion, and / or the distance between the rear edge of the outer panel and the panel disposed on the rear wheel portion.

[0031] According to further exemplary embodiments, the panel is positioned on the bottom surface of the vehicle target and extends between two opposing sides of the vehicle target. The panel may extend between the front and rear ends of the vehicle target, where the panel may be spaced apart by offsets from the front and rear edges of the vehicle target, as well as from the outer panel. Furthermore, the panel may extend between two sides of the vehicle target (i.e., the left and right sides) and the outer panel, respectively. Specifically, the panel may extend between the front wheel section and the rear wheel section, or between the right wheel section and the rear left side of the outer panel. Thus, radar waves arriving in the space below the vehicle target from the front or side of the vehicle target may be absorbed or reflected in the desired direction, thereby reducing measurement error.

[0032] It should be noted that embodiments of the present invention have been described with reference to different subject matter. In particular, some embodiments have been described with reference to claims relating to apparatus, while other embodiments have been described with reference to claims relating to methods. However, those skilled in the art will see from the above and below descriptions that, unless otherwise noted, any combination of features belonging to one type of subject matter, as well as any combination of features relating to different subject matter, in particular any combination of features between claims relating to apparatus and features relating to methods, are also disclosed in this application. [Brief explanation of the drawing]

[0033] [Figure 1] An exemplary embodiment of the vehicle target according to the present invention is shown. [Figure 2] An exemplary embodiment of the vehicle target according to the present invention is shown. [Figure 3] An exemplary embodiment of the vehicle target according to the present invention is shown. [Figure 4] An exemplary embodiment of the vehicle target according to the present invention is shown. [Figure 5] A schematic diagram of a vehicle target having panels on the wheel portion according to an exemplary embodiment of the present invention is shown. [Figure 6]This shows a schematic diagram of the back surface of a vehicle target according to an exemplary embodiment of the present invention. [Modes for carrying out the invention]

[0034] The illustrations in the drawings are schematic diagrams. Note that the same reference numerals are provided for similar or identical elements in different drawings.

[0035] Figure 1 shows a side view of a vehicle target 100 according to an exemplary embodiment of the present invention.

[0036] A vehicle target 100 is provided for testing sensors of a vehicle driver assistance system. The vehicle target 100 comprises an outer panel 101 that defines the outer geometric shape of the vehicle target 100, where the outer panel 101 at least partially encloses an internal volume Vi. The vehicle target 100 further comprises at least one panel 102, 112 having a substrate 103 and a radar-absorbing or reflecting layer 105 attached to the substrate 103, the panels 102, 112 being attached to the outer panel 101, so that at least the radar-absorbing or reflecting material / layer 105 has an offset 109 relative to the outer panel 101 in the direction toward the internal volume Vi.

[0037] The vehicle target 100 comprises an outer panel 100 that defines the outer geometric shape of the vehicle target. Additional elements, such as reflectors 106, may be placed on the outer panel 101 to define the outer geometric shape. In addition, wheels 107 may be formed on the outer panel 100.

[0038] The outer panel 101 defines the outer shell of the vehicle target 100. Panels 102 and 112 have an offset 109 in the direction toward the internal volume Vi of the vehicle target 100. The offset 109 defines the distance between panels 102 and 112 and the outer contour of the outer panel 101, respectively. Specifically, panels 102 and 112 are located near the edges of the outer panel 101. This can result in a small offset 109.

[0039] Specifically, panels 102 are positioned below the front bumper and below the rear bumper. In addition, panels 102 may be positioned behind the wheels 107. Furthermore, the two panels 102 can be flexibly attached together by a hinge 110. Therefore, if deformation of the outer panel 101 occurs due to a collision, the panels 102 can pivot around the hinge 110 to prevent deformation of the panels 102.

[0040] The vehicle target 100 is positioned on a lower platform 120 configured to be driven along the ground. Between the lower platform 120 and the bottom of the vehicle target 100, a panel 112 is positioned between the front wheels 107 and the rear wheels 107.

[0041] For example, in order to provide and display a natural shadow of a vehicle target 100 that is important to the sensor under test, such as a camera sensor or radar sensor, the outer edge of panel 102 may have a geometric offset 109 in the direction from the outer panel 101 to the internal volume Vi of the vehicle target 100 relative to other external surfaces (doors, mudguards, front bumper, and rear bumper). Thus, the edges or other parts of panels 102, 112 do not protrude from the external geometric shape of the vehicle target 100 (e.g., the outer panel 101 and other external surfaces such as the reflector 106), and thereby the natural shadow of the vehicle target 100 is not affected by panel 102.

[0042] In addition, the outer surfaces 113 of panels 102 and 112 do not have to be flat in order to avoid optical reflection. Preferably, the outer surfaces 113 of the panels are wavy and have a gray / matte color.

[0043] The radar-absorbing or reflecting material 105 is located inside (i.e., on the inner surface) of the optical panels 102 and 112.

[0044] Specifically, panels 102 and 112 comprise a substrate 103 that is transparent to waves 111, which are specific light waves and / or radar waves. A layer 105 of a material that absorbs or reflects radar is placed on the inner surface of the substrate 103.

[0045] Panels 102 and 112 comprise a base 103 to which a radar-absorbing or reflecting layer 105 is attached. The base 103 forms a support structure for the radar-absorbing or reflecting layer 105. Panels 102 and 112 have offsets in the direction of the internal volume Vi of the vehicle target 100 and the outer panel 101, respectively. The offsets 109 define the distances between panels 102 and 112 and the outer contour of the outer panel 101, respectively. Specifically, panels 102 and 112 are spaced apart so as to be at a distance from the edges 501 and 502 of the outer panel 101. The offsets 109 specifically define the distances between the edges of panels 102 and 112 at the contact points with the outer panel 101 and the bottom and side surfaces of the outer panel 101 from which the edges 501 and 502 of the outer panel 101 extend.

[0046] As can be seen from Figure 1, panel 112 extends from the front to the rear of the vehicle target 100. Thus, panels 102 and 112 cover the space between the platform 120 and the bottom of the outer panel 101. Panel 112 has an offset 109 (not shown for panel 120) on its protruding surface and an offset 109 from the side wall of the outer panel 101. Thus, panel 112 is positioned further inward and behind each wheel section 107. A perspective view of panel 112 can be seen in Figure 3.

[0047] Therefore, panel 102 provides offsets 109 relative to the side walls of the outer panel 101. In addition, panel 102 has an offset 109 from the bottom surface of the outer panel 101, as shown in Figure 1. Panel 102 is positioned inside the outer panel 101 and / or above the lower edge 108 of the outer panel 101, along with an offset 109. Specifically, panel 102 extends between the insides of the opposing front wheel sections 107 or the opposing rear wheel sections 107, respectively.

[0048] As can be seen from the front and rear panels 102, at least two panel sections are rotatably connected together. The two panel sections are rotatably connected by a hinge 110. Therefore, if deformation of the outer panel 101 occurs due to a collision, the panel sections can pivot around the hinge 110 to prevent deformation of the panel sections.

[0049] The radar-absorbing or reflecting material / layer 105 is positioned on the substrate 103 of panels 102, 112, on the inner surface 114 of the substrate 103, oriented towards the internal volume Vi. Specifically, the inner surface 114 is the surface opposite to the outer surface 113. Specifically, the inner surface 114 of the substrate 103 has a normal oriented towards the internal volume vi of the outer plate 101. The radar-absorbing or reflecting material 105 is positioned inside 114 (i.e., on the inner surface) of the substrate 103. Specifically, the substrate 103 may be transparent to waves 111, which are specific light waves and / or radar waves.

[0050] As can be seen in Figure 2, panel 112 has an offset 109 (for example, vertically) from the side of the vehicle target 100.

[0051] As can be further understood by panel 112 in Figure 2, panels 102, 112 may have a substrate including a trapezoidal or substantially triangular cross-section. Along the sides of panels 102, 112 facing the internal volume Vi of the vehicle target 100, a material / layer 105 that absorbs or reflects the respective radar is arranged. Thus, radar waves 111 are prevented from entering the internal volume Vi.

[0052] Specifically, the base 103 may have a wedge-shaped cross-section, where the tip of the wedge-shaped cross-section is spaced away from the bottom of the outer panel 101, and the larger side 115 is coupled, for example, to the bottom structure of the outer panel 101 or the vehicle target 100. Specifically, a portion of the radar-absorbing or reflecting layer 105 may be placed between the side 115 of the base 103 and the outer panel 101. Furthermore, a further portion of the radar-absorbing or reflecting layer 105 is attached to the inner surface 114 of the base 103. As indicated by arrow 111, radar waves radiated downward from the outer panel 101 are affected (reflected or absorbed) by the panel 112, thereby preventing error measurements of the vehicle driver assistance system sensor.

[0053] As can be seen from Figure 3, panel 112 is an offset from the outer panel 101 in the direction of the internal volume Vi of the vehicle target 100. Therefore, as can be seen from Figure 3, the shadow of the vehicle target 100 is not affected by panel 112.

[0054] Therefore, the shape of the shadow generated by the outer panel 101, including the edges, is not affected by the panel 112. This is because the panel 112 is positioned further inward and spaced away from the edges. Consequently, interference to the light sensors of the driver assistance system between the actual vehicle and the vehicle / vehicle target according to the present invention is reduced. This is because no artificial shadow is generated by the radar-absorbing or reflective panel 112.

[0055] Figure 4 shows a schematic diagram of a vehicle target 100 equipped with an outer panel 101. As can be seen from Figure 4, the outer panel 101 may further include wheel portions 107 that simulate the actual wheels of an actual vehicle. However, the wheel portions 107 do not have to be rotatable in the same way as actual wheels. The wheel portions 107 may be formed by stickers adhered to the outer panel surface of the outer panel 101 or by a specific paint layer. Furthermore, a wheel arch 117 may be formed. A gap or groove 116 may be formed on the inside of the outer panel 101 between the actual portion 107 and the wheel arch 117.

[0056] Figure 5 shows a schematic diagram of a vehicle target 100 having a panel 102 on a wheel section 107 according to an exemplary embodiment of the present invention. The outer panel 101 comprises a wheel section 107 including a visual representation of an actual wheel, the outer panel 101 including a gap 116 around the wheel section 107 for the representation of a wheel arch 117. The panel 102 is attached to the gap 116 on the inner surface of the outer panel 101 opposite to the wheel section 107 and / or the wheel section 107. The offset 109 of the panel 102 attached to the wheel section 107 may be determined by the distance between the leading edge 501 of the outer panel 101 and the panel 102 positioned on the front wheel section 107, and / or the distance between the trailing edge 502 of the outer panel 101 and the panel 102 positioned on the rear wheel section 107.

[0057] The substrate 103 includes a side surface 115 connecting the inner surface 114 and the outer surface 113 of the substrate 103, where a radar-absorbing or reflecting material / layer 105 is disposed on the side surface 115 of the substrate 103. Thus, a wider range of radar wave reflection or absorption is provided.

[0058] Specifically, the panel 102 is positioned inside the wheel section 107 and extends, for example, between two opposing wheel sections 107. Thus, the panel 102 has an offset 109 from the leading edge or trailing edge 501, 502, and an additional offset 109 from the side of the outer panel 101. Therefore, radar waves 111 radiated from the back or front of the vehicle target 100 downwards from the outer panel 101 can be absorbed or reflected by the panel 102. Furthermore, the panel may have a curved shape that can be adapted to the circumferential extension and (bending) radius of the wheel section 107.

[0059] Figure 6 shows a schematic view of the back surface of a vehicle target 100 according to an exemplary embodiment of the present invention. The absorption / reflection layer 105 extends non-parallel to the vertical direction. In other words, the absorption / reflection layer 105 has a normal that is non-perpendicular to the horizontal direction. In other words, the vehicle target 100 can be positioned on a support surface 601 that is substantially parallel to the horizontal plane. The normal n of the support surface 601 may be parallel to the vertical direction. In other words, the absorption / reflection layer 105 may have an angle α of 1° to 89° with respect to the normal n of the support surface 601. Furthermore, the panel 102 extends further perpendicular to the internal volume Vi in the direction toward the support surface 601 from the edge 502 of the outer panel 101. Thus, radar waves 111 directed toward the panel 102 are reflected toward the support surface 601.

[0060] Specifically, panel 102 is positioned on the bottom surface of the vehicle target 100 and extends, for example, between two opposing sides of the vehicle target 100. Thus, panel 102 has an offset 109 from the trailing edge 502 and an additional offset 109 from the side of the outer panel 101. Therefore, radar waves 111 radiated from the back surface of the vehicle target 100 towards the bottom of the outer panel 101 and towards the vehicle target 100 can be absorbed or reflected by panel 102. Panel 102 can be formed similarly to panel 102 shown in Figure 5.

[0061] It should be noted that the term “comprising” does not exclude other elements or stages, and “a” or “an” does not exclude plurals. Furthermore, elements described in relation to different embodiments may be combined. It should also be noted that reference numerals in the claims should not be construed as limiting the scope of the claims. [Item 1] A vehicle target for testing sensors of a vehicle driver assistance system, wherein the vehicle target is An outer panel defining the outer geometric shape of the vehicle target, wherein the outer panel encloses at least partially the internal volume, A panel comprising a substrate and a radar-absorbing or reflecting layer attached to the substrate, wherein the panel is attached to the outer casing, and as a result, at least the radar-absorbing or reflecting material / layer has an offset relative to the outer casing in the direction toward the internal volume, A vehicle target equipped with the following features. [Item 2] A vehicle target as described in item 1, in which at least two panels are joined together in a rotatable manner. [Item 3] A vehicle target as described in item 1 or 2, wherein at least two panels are joined together in a removable manner by their respective removable fastening elements, such as hook-and-loop fasteners, chucks and / or screw connections. [Item 4] The vehicle target according to any one of items 1 to 3, wherein the panel is removably coupled to the outer panel or inner support structure of the vehicle target by respective removable fastening elements such as hook-and-loop fasteners, chucks and / or screw connections. [Item 5] The vehicle target according to any one of items 1 to 4, wherein the substrate is at least partially transparent to waves that are specific light waves and / or radar waves. [Item 6] The outer surface of the panel is corrugated, as described in any one of items 1 to 5. [Item 7] The vehicle target described in any one of items 1 to 6, wherein the outer surface of the vehicle target facing the environment is gray and / or matte in color. [Item 8] The vehicle target according to any one of items 1 to 7, wherein the radar-absorbing or reflecting material / layer is disposed on the substrate of the panel on the inner surface of the substrate directed toward the internal volume, specifically the inner surface being the surface opposite to the outer surface. [Item 9] The vehicle target according to item 8, wherein the substrate has a side surface connecting the inner surface and the outer surface of the substrate, and a material / layer that absorbs or reflects radar is disposed on the side surface of the substrate. [Item 10] The absorbent / reflective layer is a vehicle target according to any one of items 1 to 9, extending non-parallel to the vertical direction. [Item 11] The aforementioned outer panel includes a wheel section that includes a visual representation of an actual wheel, The aforementioned outer panel has a gap around the wheel portion to represent the wheel arch. The panel is attached to the gap on the inner surface of the wheel portion and / or the outer plate opposite to the wheel portion. A vehicle target as described in any one of items 1 through 10. [Item 12] The vehicle target according to any one of items 1 to 10, wherein the panel is positioned on the bottom surface of the vehicle target and extends between two opposing sides of the vehicle target. [Item 13] A method for manufacturing a vehicle target for testing sensors of a vehicle driver assistance system, the method being: A step of providing an outer panel that defines the outer geometric shape of the vehicle target, wherein the outer panel encloses at least partially the internal volume, A step of providing at least one panel having a substrate and a radar-absorbing or reflecting layer attached to the substrate, wherein the panel is attached to the outer casing, and as a result, at least the radar-absorbing or reflecting material / layer has an offset relative to the outer casing in the direction toward the internal volume, A method that includes [a certain feature].

[0062] Reference sign 100 vehicle targets 101 Outer panel 102 panels 103 Base 105 Material / layer that absorbs or reflects radar 106 Reflector 107 Wheels, wheel section 108 Lower part of the vehicle target, lower edge 109 Offset 110 Hinge 111 waves, specific light waves and / or radar waves 112 Further panels 113 Panel exterior 114 Inner surface of panel 115 Panel side 116 Gap 117 Wheel arch 120 drive platform 501 Front edge 502 Trailing edge 601 Support surface

Claims

1. A vehicle target for testing sensors of a vehicle driver assistance system, wherein the vehicle target is An outer panel defining the outer geometric shape of the vehicle target, wherein the outer panel encloses at least partially the internal volume, At least one panel having a substrate that is at least partially transparent to radar waves and a layer that absorbs or reflects radar attached to the substrate, wherein the panel is located between the front and rear wheel portions of the vehicle target and between the lower platform on which the vehicle target can be placed and the bottom of the outer panel, and as a result, at least the layer that absorbs or reflects radar has an offset from the outer panel in the direction toward the internal volume. Equipped with, The radar-absorbing or reflecting layer is located on the inner surface of the substrate directed toward the internal volume, and is disposed on the substrate of the panel. Vehicle target.

2. The aforementioned at least one panel includes a first panel and a second panel, The first panel and the second panel are rotatably joined together, The vehicle target according to claim 1.

3. The aforementioned at least one panel includes a first panel and a second panel, The first panel and the second panel are joined together in a removable manner by their respective removable fastening elements, such as hook-and-loop fasteners, chucks, and / or screw connections. The vehicle target according to claim 1.

4. The vehicle target according to any one of claims 1 to 3, wherein the panel is removably coupled to the outer panel or inner support structure of the vehicle target by respective removable fastening elements such as hook-and-loop fasteners, chucks and / or screw connections.

5. The vehicle target according to any one of claims 1 to 4, wherein the substrate is at least partially transparent to a specific light wave.

6. The vehicle target according to any one of claims 1 to 5, wherein the outer surface of the panel is corrugated.

7. The vehicle target according to any one of claims 1 to 6, wherein the outer surface of the panel facing the environment of the vehicle target has a gray and / or non-glossy color.

8. The vehicle target according to claim 6 or 7, wherein the substrate has a side surface connecting the inner surface and the outer surface of the substrate, and a layer for absorbing or reflecting radar is disposed on the side surface of the substrate.

9. The vehicle target according to any one of claims 1 to 8, wherein the absorbing or reflective layer extends non-parallel to the vertical direction.

10. The outer panel comprises the front wheel section and the rear wheel section, which include a visual representation of the actual wheels. The aforementioned outer panel has gaps around the front and rear wheel sections in order to represent the wheel arches. The system further comprises another panel that is attached to the gap between the front wheel section and the rear wheel section. A vehicle target according to any one of claims 1 to 9.

11. The vehicle target according to any one of claims 1 to 9, further comprising another panel disposed on the bottom surface of the vehicle target and extending between two opposing sides of the vehicle target.

12. A method for manufacturing a vehicle target for testing sensors of a vehicle driver assistance system, the method being: A step of providing an outer panel that defines the outer geometric shape of the vehicle target, wherein the outer panel encloses at least partially the internal volume, A step of providing at least one panel having a substrate that is at least partially transparent to radar waves and a layer that absorbs or reflects radar attached to the substrate, wherein the panel is located between the front and rear wheel portions of the vehicle target and between a lower platform on which the vehicle target can be placed and the bottom of the outer panel, and as a result, at least the radar-absorbing or reflecting layer has an offset from the outer panel in the direction of the internal volume. Equipped with, The radar-absorbing or reflecting layer is located on the inner surface of the substrate directed toward the internal volume, and is disposed on the substrate of the panel. method.

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