Rear spoiler and motor vehicle

Abstract

Rear spoiler (1) for a motor vehicle, comprising a spoiler blade (4), a spoiler edge element (8) attached to the spoiler blade (4) which is displaceable relative to the spoiler blade (4) from a retracted position to an extended position and vice versa, and a cover element (12) which covers the spoiler edge element (8) in the retracted position, wherein the cover element (12) is displaceable such that the cover element (12) is arranged within the spoiler blade (4) in the extended position.

Description

[0001] The invention relates to a rear spoiler for a motor vehicle and a motor vehicle with such a rear spoiler.

[0002] So-called Gurney flaps or spoiler lip elements can be used on the rear spoilers of motor vehicles. The function of such a spoiler lip element is to increase downforce. A disadvantage is the permanently increased air resistance. The spoiler lip element can also detract from the overall appearance of the vehicle. With an active spoiler lip element, it can be lowered into the rear spoiler or the vehicle's body. In this case, no external component disrupts the overall appearance. The increased air resistance can be activated depending on the driving situation.

[0003] DE 10 2016 111 429 A1 describes an air guidance device for a vehicle, wherein the air guidance device comprises a primary wing and a secondary wing, wherein the primary wing is reversibly transferable between an active position and a passive position, wherein the primary wing is at least partially stored in a shaft in the passive position and is arranged outside the shaft in the active position, and wherein the secondary wing at least partially covers the shaft in the active position of the primary wing.

[0004] Against this background, one object of the present invention is to provide an improved rear spoiler for a motor vehicle.

[0005] Accordingly, a rear spoiler for a motor vehicle is proposed comprising a spoiler blade, a trailing edge element attached to the spoiler blade which is movable relative to the spoiler blade from a retracted position to an extended position and vice versa, and a cover element which covers the trailing edge element in the retracted position, wherein the cover element is movable such that the cover element is arranged within the spoiler blade in the extended position.

[0006] Because the cover element conceals the spoiler lip in its retracted position, the result is both visually appealing and prevents unwanted air turbulence. Positioning the cover element within the spoiler blade when the spoiler lip is extended ensures that the cover element is not visible and cannot influence airflow around the rear spoiler.

[0007] The spoiler edge element is an active spoiler edge element. "Active" in this context means that the spoiler edge element is movable, in particular pivotable or linearly movable, to move it from the retracted position to the extended position and vice versa. A drive unit is provided for this purpose. In the retracted position, the spoiler edge element preferably does not project beyond the top surface of the spoiler blade, but is positioned within the spoiler blade. In the extended position, the spoiler edge element projects beyond the top surface.

[0008] Preferably, the trailing edge element is curved in an arc. The trailing edge element has a curved leading edge and a curved trailing edge or trailing edge facing away from the leading edge. The cover element is also curved in an arc. The cover element is suitable for completely closing a cutout provided in the spoiler blade. In the extended position, the trailing edge element is sealed against the spoiler blade on its underside, particularly by means of a gap seal. The gap seal can be made of an elastically deformable material, such as rubber. The gap seal prevents unwanted airflow under the trailing edge element.

[0009] According to one embodiment, the spoiler leaf has a cutout, wherein the cover element closes the cutout in the retracted position and opens the cutout in the extended position. In other words, the cover element is positioned outside the cutout when the spoiler edge element is extended. The cover element can also be referred to as the closing element.

[0010] According to another embodiment, the tear-off edge element protrudes from the cutout in the extended position. In particular, the tear-off edge element protrudes from the cutout and extends over the top surface of the spoiler blade.

[0011] According to another embodiment, the cover element is flush with the top surface of the spoiler blade when retracted. The top surface is therefore smooth, resulting in an attractive appearance.

[0012] According to another embodiment, the cover element is arranged inside the spoiler blade and below the top surface when extended. For this purpose, the cover element is pulled into the spoiler blade and then moved linearly beneath the top surface.

[0013] According to a further embodiment, the spoiler blade has a receiving area arranged within the spoiler blade for receiving the trailing edge element and / or the cover element. The receiving area is preferably positioned between an upper shell and a lower shell of the spoiler blade.

[0014] According to a further embodiment, the cover element moves into the receiving area by first moving against a z-direction and then along an x-direction of the rear spoiler. The cover element thus performs two linear movements oriented perpendicular to each other. Preferably, the rear spoiler is associated with a coordinate system with an x-direction, a y-direction, and a z-direction. The three directions are oriented perpendicular to each other.

[0015] According to another embodiment, the tear-off edge element moves out of the receiving area by performing a movement along the z-direction. Alternatively, the tear-off edge element can also perform a rotational movement.

[0016] According to a further embodiment, the rear spoiler has a drive unit configured to move the cover element and the trailing edge element into or out of the receiving area. The spoiler blade preferably comprises an upper shell and a lower shell connected to the upper shell. The drive unit can be arranged at least partially between the upper shell and the lower shell. However, the drive unit can also be installed at least partially within the body of the vehicle. The drive unit can, for example, include an actuator in the form of an electric motor and a mechanism for realizing the aforementioned movements of the trailing edge element and / or the cover element.

[0017] Furthermore, a motor vehicle with such a rear spoiler is proposed.

[0018] The rear spoiler is attached to the rear of the vehicle. Optionally, the rear spoiler can be extended from the vehicle body and at least partially retracted into the body.

[0019] The embodiments and features described for the proposed rear spoiler apply accordingly to the proposed motor vehicle and vice versa.

[0020] The term "one" here should not necessarily be understood as restricting the number to exactly one element. Rather, it can also refer to multiple elements, such as two, three, or more. Similarly, every other numerical word used here should not be interpreted as requiring a precise restriction to exactly the corresponding number of elements. Rather, numerical deviations, both higher and lower, are possible.

[0021] Other possible implementations of the invention also include combinations of features or embodiments described previously or subsequently with regard to the exemplary embodiments, even if not explicitly mentioned. In such cases, the person skilled in the art will also add individual aspects as improvements or additions to the respective basic form of the invention.

[0022] Further advantageous embodiments and aspects of the invention are the subject of the dependent claims and the exemplary embodiments of the invention described below. The invention will be explained in more detail below with reference to preferred embodiments and the accompanying figures. Fig. Figure 1 shows a schematic perspective view of an embodiment of a rear spoiler for a motor vehicle; Fig. Figure 2 shows another schematic perspective view of the rear spoiler according to Fig. 1; Fig. Figure 3 shows another schematic perspective view of the rear spoiler according to Fig. 1; Fig. Figure 4 shows another schematic perspective view of the rear spoiler according to Fig. 1; Fig. Figure 5 shows another schematic perspective view of the rear spoiler according to Fig. 1; and Fig. Figure 6 shows a schematic sectional view of an embodiment of a spoiler edge element for the rear spoiler according to Fig. 1.

[0023] In the figures, identical or functionally equivalent elements have been given the same reference symbols, unless otherwise indicated.

[0024] The Fig. Figure 1 shows a schematic perspective view of an embodiment of a rear spoiler 1 for a motor vehicle not shown. Fig. Figure 2 shows another schematic perspective view of the rear spoiler 1. The following refers to the Fig. 1 and Fig. 2 referenced simultaneously.

[0025] The rear spoiler 1 is assigned a coordinate system with a first spatial direction, longitudinal direction or x-direction x, a second spatial direction, transverse direction or y-direction y, and a third spatial direction, vertical direction or z-direction z. The directions x, y, z are oriented perpendicular to each other.

[0026] The rear spoiler 1 comprises an upper shell 2 and a lower shell 3 connected to the upper shell 2. The upper shell 2 and the lower shell 3 form a spoiler blade 4 of the rear spoiler 1. The upper shell 2 has a [missing information - likely a specific feature or feature] in the orientation of the Fig. 1 and Fig. The rear spoiler 1 has two upward-facing top surfaces 5. These top surfaces include a leading edge 6 and a trailing edge or trailing edge 7. The rear spoiler 1 can be permanently mounted on the vehicle. Furthermore, the rear spoiler 1 can also be extendable and retractable.

[0027] To generate additional downforce as needed with a drag coefficient-oriented rear spoiler 1, a so-called active Gurney flap or an active trailing edge element 8 can be extended from a rear section of the rear spoiler 1. The trailing edge element 8 and the spoiler blade 4 together form the rear spoiler 1. The trailing edge element 8 comprises a leading edge 9 and a trailing edge or trailing edge 10 facing away from the leading edge 9. The leading edge 9 and the trailing edge 10 are each curved in an arc.

[0028] The tear-off edge element 8 can be removed from one in the Fig. 1 shown in the recessed position in which Fig. The extended position shown in Figure 2 can be pivoted. In this process, the tear-off edge element 8 performs a rotational movement of, for example, 45°. The tear-off edge element 8 can thus be positioned rotationally. Alternatively, the tear-off edge element 8 can also be extended linearly along the z-direction to move from its retracted position to its extended position and vice versa.

[0029] The spoiler blade 4 has a cutout 11 on its upper surface 5, through which the trailing edge element 8 is moved from its retracted position to its extended position. In the retracted position, the cutout 11 is concealed by a closing element or cover 12, so that the cover 12 is flush with the upper surface 5. The cover 12 conceals the trailing edge element 8, so that it is not visible in the retracted position.

[0030] In the extended position of the trailing edge element 8, the cover element 12 is arranged inside the spoiler leaf 4, as shown in the Fig. 2 is indicated by dashed lines. For this purpose, the cover element 12 is first lowered into the cutout 11 against the z-direction z and then moved away from the cutout 11 along the x-direction x, so that the cover element 12 is positioned below the top surface 5 in the extended position of the tear-off edge element 8.

[0031] To accommodate the trailing edge element 8 and the cover element 12, the spoiler blade 4 has a receiving area 13, which can be a cavity formed between the upper shell 2 and the lower shell 3. In the retracted position of the trailing edge element 8, it is located within the receiving area 13, with the cover element 12 located outside the receiving area 13 in the cutout 11. In the extended position of the trailing edge element 8, it is located outside the receiving area 13, with the cover element 12 located within the receiving area 13. The receiving area 13 thus serves to provide space within the spoiler blade 4.

[0032] To move the spoiler edge element 8 from the retracted position to the extended position and vice versa, a highly schematic drive unit 14 is assigned to the rear spoiler 1. Unlike in the Fig. 1 and Fig. 2 shown – located between the upper shell 2 and the lower shell 3. The drive unit 14 can also be installed, at least partially, below the rear spoiler 1 in the vehicle. The drive unit 14 can, for example, comprise an actuator in the form of an electric motor and a mechanism for realizing the aforementioned movement of the trailing edge element 8 and / or the cover element 12.

[0033] The drive unit 14 can be used to move both the tear-off edge element 8 and the cover element 12. For example, to move the tear-off edge element 8 from the retracted position to the extended position, the drive unit 14 can first lower the cover element 12 out of the cutout 11 in the opposite direction z and then move it along the x-direction x into the receiving area 13. The tear-off edge element 8 is then folded out of the cutout 11 or moved upwards along the z-direction z.

[0034] It is also possible that the tear-off edge element 8 and the cover element 12 are mechanically coupled to each other, so that when the cover element 12 is lowered into the receiving area 13, the tear-off edge element 8 is moved out of the cutout 11 into the extended position by means of the movement of the cover element 12.

[0035] The rear spoiler 1 can be retracted and extended, as mentioned previously. The trailing edge element 8 can assume different positions for both the retracted and extended rear spoiler 1. These positions are determined by aerodynamic requirements. With a drag coefficient-oriented rear spoiler 1, the active trailing edge element 8 may eliminate the need to extend the rear spoiler 1. Instead, it extends to the rear, resulting in reduced drag. In dynamic driving situations, the trailing edge element 8 can be deployed to generate downforce for sufficient driving stability.

[0036] The Fig. 3, Fig. 4 to Fig. Figures 5 show further schematic perspective views of the rear spoiler 1. The following refers to the Fig. 3, Fig. 4 to Fig. 5 referenced simultaneously.

[0037] In the Fig. 3, Fig. 4 to Fig. 5 is the lower shell 3, which is part of the spoiler sheet 4, not shown. Fig. 3, Fig. 4 to Fig. Figure 5 shows a step-by-step procedure for moving the tear-off edge element 8 from the retracted position to the extended position.

[0038] In the Fig. In step 3, the cover element 12 is initially located in the cutout 11 and closes it. The tear-off edge element 8 is arranged below the cover element 12 in the receiving area 13 (not shown). The tear-off edge element 8 is in its retracted position.

[0039] Then, as in the Fig. As shown in Figure 4, the cover element 12 is lowered in the opposite direction z and moved along the x-direction x into the receiving area 13. The cutout 11 is now open. The tear-off edge element 8 remains in the retracted position.

[0040] Finally, the tear-off edge element 8 is either rotated through the open cutout 11 into the extended position or moved along the z-direction into the extended position. The cover element 12 is still located in the receiving area 13. In summary, the cover element 12 lowers into the upper shell 2 and disappears, while the fixed tear-off edge element 8 extends from the receiving area 13.

[0041] The Fig. Figure 6 shows a schematic sectional view of the demolition edge element 8.

[0042] The trailing edge element 8 is sealed on its underside against the spoiler blade 4, in particular its upper surface 5, by means of a gap seal 15. The gap seal 15 can be made of an elastically deformable material, such as rubber. The gap seal 15 prevents unwanted airflow under the trailing edge element 8 and air inflow into the receiving area 13 (not shown).

[0043] The advantages of the rear spoiler 1 lie in its easily sealed gaps. There is no black area. The trailing edge element 8 is well integrated into the spoiler blade 4. This results in an interesting visual movement between the components, namely the trailing edge element 8 and the cover element 12. In particular, the upward movement of the trailing edge element 8 in the z-direction is striking.

[0044] The kinematic concepts described below can be used for the rear spoiler 1. For a purely rotary movement, a single joint or a multi-link system can be used. This results in only one degree of freedom and a simple bearing. For a sliding movement, a multi-link system or a cable drive can be implemented. This results in a small gap.

[0045] A combined sliding, rotating, and / or lifting motion can be achieved using a multi-joint mechanism or a cable drive with a guide. This allows for more complex movements. A shape-variable motion can be realized through a multi-joint mechanism in combination with a Finray, segmented units, textile surfaces, and / or flexible surfaces. This results in gap-free solutions. Reference symbol list 1 Rear spoiler 2 Upper shell 3 lower shell 4 spoiler sheets 5 Top 6 Leading edge 7 Tear-off edge 8 tear-off edge element 9 Leading edge 10 Tear-off edge 11 Excerpt 12 Cover element 13 Recording area 14 Drive unit 15 Gap sealing x x-direction y y-direction z z-direction

Claims

Rear spoiler (1) for a motor vehicle, comprising a spoiler blade (4), a spoiler edge element (8) attached to the spoiler blade (4) which is displaceable relative to the spoiler blade (4) from a retracted position to an extended position and vice versa, and a cover element (12) which covers the spoiler edge element (8) in the retracted position, wherein the cover element (12) is displaceable such that the cover element (12) is arranged within the spoiler blade (4) in the extended position. Rear spoiler according to claim 1, wherein the spoiler leaf (4) has a cutout (11), wherein the cover element (12) closes the cutout (11) in the retracted position, and wherein the cover element (12) releases the cutout (11) in the extended position. Rear spoiler according to claim 2, wherein the spoiler edge element (8) protrudes from the cutout (11) in the extended position. Rear spoiler according to one of the preceding claims, wherein the cover element (12) is arranged flush with a top surface of the spoiler blade (4) in the retracted position. Rear spoiler according to claim 4, wherein the cover element (12) is arranged in the extended position inside the spoiler blade (4) and below the top surface (5). Rear spoiler according to one of the preceding claims, wherein the spoiler leaf (4) has a receiving area (13) arranged within the spoiler leaf (4) for receiving the trailing edge element (8) and / or the cover element (12). Rear spoiler according to claim 6, wherein the cover element (12) is moved into the receiving area (13) by first performing a movement against a z-direction (z) and then along an x-direction (x) of the rear spoiler (1). Rear spoiler according to claim 7, wherein the trailing edge element (8) is displaced from the receiving area (13) by the trailing edge element (8) performing a movement along the z-direction (z). Rear spoiler according to claim 7 or 8, wherein the rear spoiler (1) has a drive unit (14) which is configured to move the cover element (12) and the spoiler edge element (8) into or out of the receiving area (13). Motor vehicle with a rear spoiler (1) according to one of the preceding claims.

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