Floor trim for a vehicle and floor trim assembly on a vehicle body structure

Abstract

The invention relates to a floor trim (24) for a vehicle (10) having a first air guide region (28) and a second air guide region (30, 30', 30") which adjoins the first air guide region (28) rearward in the vehicle longitudinal direction (20) and which is bent away from the first air guide region (28) in the vehicle longitudinal direction (20) from a lower front region to an upper rear region. The floor trim is characterized in that a spoiler edge (36) adjoins the second air guide region (30, 30', 30"), the air flow guided along the second air guide region (30, 30', 30") separates in a defined manner at the spoiler edge when the vehicle (10) is moving forward, and the spoiler edge (36) is arranged at an edge region which is arranged behind the second air guide region (30, 30', 30") in the vehicle longitudinal direction (20) and which extends downward away from the second air guide region (30, 30', 30") in a parallel or inclined manner with respect to the vehicle vertical direction (32) over its entire extent in the vehicle vertical direction.

Description

Technical Field

[0001] This invention relates to a floor trim piece for vehicles. It also relates to a floor trim assembly / component for use in a vehicle body structure. Background Technology

[0002] DE 10 2013 219 549 A1 discloses a floor trim cover for at least partially covering a car floor. The cover has at least one first region and at least one second region that is in contact with the first region and is more flexible and elastically deformable than the first region. DE 201 16 286U1 discloses a trim for a car floor. A vehicle with an air-guiding device is also known from EP 2 435288 B1.

[0003] A car floor trim is disclosed in DE 10 2018 000 922 A1, comprising a plate-shaped floor trim piece for vertically covering the car floor. Additionally, a deformation device is provided, allowing the floor trim piece to deform into multiple distinct convex shapes. Each convex shape, at its deepest point vertically within the vehicle, is movable longitudinally by means of the deformation device. Each convex shape forms a venturi nozzle with the horizontal driving lane, thereby intentionally influencing its downward or upward movement.

[0004] A vehicle is described in DE 10 2013 105 842 A1, which has a diffuser in the rear floor region, the diffuser having a front rigid floor diffuser section and an adjacent foldable rear floor diffuser section. By adjusting the end section of the diffuser from an upward folding position to a downward folding position, a sinking / lifting effect and an air resistance effect are obtained accordingly.

[0005] A vehicle with a floor panel and a rear bumper is disclosed in DE 10 2017 005 773 A1. The floor panel has a lower outer surface that rises towards the rear of the vehicle, and the rear bumper has a lower edge that, when viewed vertically, is lower than the rear edge of the floor panel, thus creating a vertical gap between the rear edge of the floor panel and the lower edge of the rear bumper. An intermediate member is also provided, arranged between the floor panel and the rear bumper, such that the vertical gap is covered by the intermediate member. Finally, a spoiler edge protruding downward from the intermediate member is provided. Air turbulence in the floor panel area, together with downwardly sloping vortices in front of the intermediate member's baffle, causes separation from the vehicle body in a prescribed manner. Summary of the Invention

[0006] The objective of this invention is to provide a floor trim piece for a vehicle and a floor trim assembly for a vehicle body structure, thereby achieving highly advantageous vehicle aerodynamics.

[0007] A first aspect of the invention relates to a floor trim for a vehicle, particularly a motor vehicle designed as a passenger car. Thus, the floor trim is used, in the fully manufactured state of the vehicle, to at least partially cover the vehicle floor vertically downwards. The floor can be formed by a body structure of the vehicle, for example, designed as a self-supporting body, wherein the floor at least partially, particularly at least primarily or completely, defines the vehicle interior, also known as the passenger compartment, vertically downwards.

[0008] The floor trim piece has a first air guide area and a second air guide area, the second air guide area being particularly directly connected to the first air guide area in the longitudinal direction of the vehicle when the floor trim piece is installed. Here, in the fully manufactured state of the vehicle, and therefore when the floor trim piece or the floor trim including the floor trim piece is at least indirectly, and particularly directly, held to the body structure, and simultaneously, particularly when the vehicle is vertically arranged below the floor, the floor trim piece is in its installed position. The feature that "the second air guide area is immediately adjacent to the first air guide area in the longitudinal direction of the vehicle" specifically refers to other areas in the longitudinal direction of the vehicle where the floor trim piece is not arranged between the first and second air guide areas. The second air guide area, which bends / at an angle from the first air guide area, extends longitudinally from the lower front to the upper rear of the first air guide area when the floor trim piece is installed. That is, the second air guide area thus has a direction that rises in the opposite direction to the forward direction of the vehicle, i.e., towards the rear of the vehicle, similar to a ramp.

[0009] The feature that "the second air guide area bends from the first air guide area and simultaneously extends from the first air guide area longitudinally from front-low to rear-up, away from the first air guide area" specifically refers to the fact that the forward end of the second air guide area longitudinally is positioned lower in the vehicle's vertical direction than the rearward end. Viewed longitudinally from front to rear, the second air guide area begins at its front end, and ends at, for example, the first air guide area. Furthermore, the second air guide area ends at its rear end. Therefore, the feature that "the second air guide area bends from the first air guide area" specifically refers to the imaginary straight line connecting the front and rear ends, extending within a plane defined by the vehicle's longitudinal and vertical directions, extending, for example, at an angle relative to the first air guide area or at an angle relative to both the vehicle's longitudinal and vertical directions. Therefore, the rear end of the second air guide area is positioned further rearward in the vehicle's longitudinal direction than the front end.

[0010] To achieve particularly favorable vehicle aerodynamics, the floor trim features a spoiler edge / airflow separation edge. It is specifically directly connected to the second air deflector area and is positioned longitudinally after or at the end of the second air deflector area. As previously described with respect to the first and second air deflector areas, the feature of "the spoiler edge immediately adjacent to the second air deflector area" can refer to other areas longitudinally between the second air deflector area and the spoiler edge where no floor trim is provided.

[0011] When the floor trim is installed, the spoiler edge preferably extends downward away from the second air deflector area in a manner parallel to or inclined relative to the vehicle's vertical direction throughout its entire length extending vertically along the vehicle. Furthermore, the second air deflector area generally terminates at a free end of the floor trim, and the floor trim terminates at that free end. In other words, the spoiler edge forms the free end of the floor trim. Particularly when the spoiler edge is immediately adjacent to the second air deflector area, the upper end of the spoiler edge in the vehicle's vertical direction coincides with the rearward end of the second air deflector area in the vehicle's longitudinal direction. The lower end of the spoiler edge in the vehicle's vertical direction is the free end of the floor trim, where both the spoiler edge and the floor trim terminate together. The spoiler edge then extends parallel to or inclined relative to the vehicle's vertical direction throughout its entire length, from the upper end to the lower end. Therefore, the spoiler edge bends from the second air deflector area. The spoiler edge thus forms the vertical surface (Abstellung) of the floor trim pointing downward along the vehicle's vertical direction from the rear end of the second air deflector area. The vertical surface and its function as a spoiler edge, also known as a spoiler edge, are combined with a second air guide area arranged longitudinally along the vehicle in front of the vertical surface, the second air guide area being, for example, a sloping surface extending longitudinally from front to rear.

[0012] As the vehicle moves forward, air flows longitudinally from front to rear around the vehicle, along the floor trim and subsequently along the floor trim element. The airflow along the floor trim element can be advantageously guided or directed as needed by air guide areas, resulting in highly favorable vehicle aerodynamics. The floor trim element, in particular, causes the airflow along it, also known as the floor flow, to be deflected upwards in the vehicle's vertical direction by means of the second air guide area, especially when the air first flows along a first air guide area and then along a second air guide area. This means that the second air guide area causes the floor flow to be deflected upwards in the vehicle's vertical direction. By deflecting the floor flow upwards, the floor flow is accelerated, and then turbulence / airflow separation of the floor flow is caused by the spoiler edge. In other words, after the floor flow is accelerated by turning upwards, it is thus separated from the floor trim element, thereby creating turbulence by means of the spoiler edge. This is particularly advantageous when there is an axle longitudinally rearward along the vehicle's length, especially when the rear axle is connected to the floor trim element. This turbulence allows air to be advantageously deflected below and beside the axle, for example, towards a vehicle diffuser positioned longitudinally behind the axle, such that a particularly large amount of air is directed towards the diffuser. The edges of the turbulence ensure a clearly defined flow, allowing air to be advantageously deflected around the rear axle. If the rear axle is at least partially covered vertically downwards by at least one cover, an additional effect can be achieved: air can flow advantageously towards the cover. This maintains very low lift and aerodynamic drag at the rear axle, allowing the vehicle to be driven with high energy efficiency and, therefore, low fuel consumption, thereby keeping CO2 emissions particularly low. Furthermore, particularly advantageous driving dynamics can be achieved. Additionally, the present invention exhibits a greater ground clearance at the axle compared to common solutions.

[0013] This invention stems in particular from the understanding that air should flow as directly as possible towards the area where the aforementioned rear diffuser is located to achieve minimal air resistance and favorable lift. However, this presents a challenge due to obstruction within the aforementioned axle area, hence many vehicles are equipped with covers in this area. This invention now allows for more air to be directed towards the diffuser and better guided around the rear axle compared to common solutions.

[0014] In order to achieve a highly advantageous and clearly defined floor flow turbulence, it is preferably specified that the turbulence edges are flat, especially over their entire extension from the top to the bottom.

[0015] In a particularly advantageous embodiment of the invention, the second air guiding region is configured as a flat surface. This specifically means that the second air guiding region extends at least primarily, and especially entirely, within a plane, which preferably extends obliquely relative to the longitudinal direction of the vehicle. This advantageously accelerates the airflow.

[0016] To effectively guide or direct airflow and thus achieve excellent vehicle aerodynamics, other designs of the invention specify that the second air guiding area arches upward or downward in the vehicle's vertical direction. When the floor trim is viewed from below in the vehicle's vertical direction, the second air guiding area exhibits a convex arch when it arches downward in the vehicle's vertical direction. However, if the second air guiding area arches upward in the vehicle's vertical direction, then the second air guiding area exhibits a concave arch.

[0017] Another implementation specifies that the second air guiding region is immediately adjacent to the first air guiding region. This allows the aforementioned floor flow acceleration to be effectively achieved using the second air guiding region.

[0018] In order to avoid unwanted eddies in the air flowing along the floor trim, other designs of the present invention specify that the second air guiding area is designed to be integrated with the first air guiding area, and / or the turbulence edge is designed to be integrated with the second air guiding area.

[0019] Preferably, the floor trim is made of plastic so that it can exhibit favorable aerodynamics in a way that is advantageous in terms of weight.

[0020] Ultimately, it proved advantageous that the first air guide region, preferably flat, extends within a plane defined by the vehicle's longitudinal and lateral directions. This allows the floor flow to be advantageously and strongly accelerated via the second air guide region as it transitions from the first to the second air guide region, enabling the diffuser to be supplied with a large amount of air.

[0021] A second aspect of the invention relates to a floor trim assembly on a vehicle, particularly an automobile, and more particularly a passenger car, for example, a body structure designed as a self-supporting vehicle body. In this assembly, the floor trim is fixed to the body structure at least indirectly, and especially directly. Here, the floor of the body structure is at least partially covered by the floor trim vertically downwards from the vehicle. The floor trim here includes at least one floor trim member according to the first aspect of the invention, so that the floor of the body structure is at least partially, and especially at least primarily or completely covered or obscured vertically downwards from the vehicle by the floor trim member. The advantages and advantageous designs of the first aspect of the invention should be considered as advantages and advantageous designs of the second aspect, and vice versa.

[0022] In other designs of the invention, the rear axle of the vehicle is positioned longitudinally behind the floor trim and therefore behind the spoiler edge.

[0023] The rear axle preferably has at least one wheel steering unit, also simply referred to as a steering unit, which hinges the wheels of the vehicle, also known as wheels, to the vehicle body structure. The steering unit is, for example, at least indirectly hinged to the wheel at one end. For example, the wheel steering unit is hinged at one end to a wheel carrier on which the wheel is rotatably mounted. At the other end, the wheel steering unit is, for example, at least indirectly, and especially directly hinged to the vehicle body structure. For example, the wheel steering unit is directly hinged to the vehicle body structure at the other end. Alternatively, it is conceivable that the wheel steering unit is hinged at the other end to an axle carrier, which is separately constructed from and mounted on the vehicle body structure. The wheel steering unit controls the wheel and, for example, allows the wheel to compress and rebound relative to the vehicle body structure in the vertical direction of the vehicle.

[0024] Here, the wheel steering system is at least partially covered vertically and downward by other trim pieces positioned vertically behind the floor trim and thus behind the spoiler edge. These other trim pieces are constructed separately from and held on the steering system, and thus can move with the steering system relative to the vehicle body structure. This ensures that floor airflow is advantageously directed, particularly rearward, towards the diffuser.

[0025] Ultimately, it proved highly advantageous to position the aforementioned diffuser longitudinally behind the axle. This resulted in highly favorable aerodynamics and driving dynamics for the vehicle. Attached Figure Description

[0026] Other advantages and details of the invention will become apparent from the following description and in conjunction with the figures. Wherein:

[0027] Figure 1 The diagram shows a partial bottom-view perspective of a vehicle designed as a sedan, featuring floor trim with three successive air-guiding zones along the vehicle's longitudinal direction; and

[0028] Figure 2 A partial side cross-sectional view of a vehicle floor trim including floor trim pieces is shown. Detailed Implementation

[0029] Figure 1 The rear of a vehicle 10 designed as a sedan is partially shown in a low-angle perspective view. The vehicle 10, including a body structure designed as a self-supporting body 13, has exactly two axles, one preceding the other, running longitudinally along the vehicle's axis. Figure 1 The front and rear axles 12 are not visible in the vehicle. Two wheels 14, spaced exactly apart laterally on the axles, are mounted on them and roll on the lane 9 during driving.

[0030] In addition to wheel 14, rear axle 12 may include axle components, such as axle brackets that are separately constructed from and mounted on body 13. Other components of rear axle 12 may be wheel steering mechanisms. Figure 1The wheel steering mechanism, marked 16, can be partially seen in the image. Wheel 14 is hinged to the body 13 via the wheel steering mechanism. Additionally, Figure 1 Arrow 18 indicates the forward direction of vehicle 10. However, the forward direction is parallel to... Figure 1 The vehicle extends longitudinally, indicated by the double arrow 20.

[0031] Vehicle 10 also has a floor trim 22, which is separately formed from the body 13 and is held onto the body 13 at least indirectly, and especially directly. The body 13 here has a floor, also called a floor, which at least partially defines, vertically downwards, the interior of the body 13 or vehicle 10, also called a passenger compartment or passenger cabin. The floor trim 22 is arranged vertically below the floor, so that the floor is at least partially covered and thus concealed vertically downwards and rearwards. Viewed in the forward direction of vehicle 10, the floor trim 22 is positioned in front of the rear axle 12 and therefore does not cover the rear axle.

[0032] In the illustrated embodiment, the floor trim 22 extends across the entire vehicle width, at least in the area adjacent to or adjacent to the rear axle 12. Here, the floor trim 22 may be designed as a single piece (i.e., composed of multiple parts) or a single unit, and therefore includes at least one floor trim element 24. In an alternative variant of the floor trim 22, it has multiple floor trim elements 24 arranged side-by-side in the vehicle transverse direction, also referred to as the y-direction in the vehicle coordinate system, indicated by the double arrow 26. Figure 1 A third variant of the floor trim 22 is also shown, in which the vehicle has a central passage 26, indicated by a dashed line and also referred to as a passageway or driveshaft passageway, wherein the floor trim pieces 24 of the floor trim 22 are arranged beside the central passageway 26.

[0033] Figure 2 According to the diagram Figure 1 The section line AA shown illustrates a side view of the vehicle 10 in its floor area. It can be seen that the floor trim 24 has a first air guide region 28, which is configured flat or at least substantially flat, and extends in a plane defined by the vehicle's longitudinal direction (x-direction in the vehicle coordinate system) and lateral direction (y-direction). The at least one surface of the floor trim 24 forming the first air guide region 28 therefore preferably extends parallel to the lane 9.

[0034] Additionally, the floor trim piece 24 has a second air guide region that extends longitudinally rearward along the vehicle, immediately following the first air guide region 28 and bending from the first air guide region 28; its first embodiment is indicated by 30 and is provided by... Figure 2The solid line in the diagram indicates that the second air guide area 30 is therefore formed by at least one flat surface that extends longitudinally from the front lower to the rear upper of the first air guide area 28 at the mounting positions of the floor trim 22 and, consequently, the floor trim piece 24. That is, the second air guide area 30 thus rises slopingly towards the rear axle 12. Here, the floor trim 22 and the floor trim piece 24 are in their fully manufactured state as shown in the diagram. Figure 1 and Figure 2 The installation location is shown. To further illustrate the installation location, the vehicle vertical (z-direction in the vehicle coordinate system) is shown in... Figure 2 The number 32 is represented by a double arrow.

[0035] exist Figure 2 In the diagram, arrow 34 represents the airflow along the floor trim 22 and thus along the floor trim piece 24 as the vehicle 10 moves forward. Therefore, arrow 34 indicates the airflow that occurs as the vehicle 10 moves forward, also known as the floor flow. The floor flow is directed or guided against the floor trim 22 and, in particular, by means of the floor trim piece 24.

[0036] To achieve a highly favorable aerodynamic profile for the vehicle 10, the floor trim 24 has a spoiler edge 36 that is immediately adjacent to, or formed on, or protrudes from, the second air guide region 30, which, according to... Figure 2In this embodiment, the floor trim 22 is formed by an edge or edge surface that bends or rises downward from the second air guide region 30. This edge or edge surface extends downward away from the second air guide region 30 in a manner parallel to or inclined relative to the vehicle's vertical direction along its entire length along the vehicle's vertical extension, ending at the free end E of the floor trim 24. The deflector edge 36 causes the floor flow to be separated from the floor trim 24. This prevents direct air impact on the rear axle 12. Instead, the airflow separation prevents air from entering and stagnating in the gap accommodating the rear axle 12, thus avoiding air turbulence that would weaken vehicle aerodynamics. Therefore, the floor trim 22 design of the present invention ensures that the floor flow is advantageously guided below the rear axle 12. When airflow from the air guide region 28 flows toward or through the air guide region 30, the floor flow is accelerated by the air guide region 30, which is configured as a ramp rising towards the rear axle 12 with respect to the lane 9. This allows a large amount of air to be directed to region B of the vehicle 10, which is positioned longitudinally behind the rear axle 12. In the illustrated embodiment, a diffuser 40, also known as a rear diffuser, is positioned within region B of the vehicle 10, thus the diffuser 40 is arranged longitudinally behind the rear axle 12. Therefore, air can flow particularly advantageously towards the diffuser 40. Furthermore, a large amount of air can be directed to the diffuser 40. This allows for highly advantageous aerodynamics and driving dynamics of the vehicle 10.

[0037] In the first embodiment, the air guiding region 30 is configured to be flat. Therefore, the air guiding region 30 extends in a second plane that is inclined longitudinally and vertically relative to the vehicle.

[0038] The second embodiment of the air guiding area 30 is in Figure 2 The area 30' is marked with a dashed line. In the second embodiment, the air guiding area 30' is formed by at least one surface that faces upwards in the vertical direction of the vehicle and is therefore concave and arched. Additionally, in Figure 2 In the diagram, the third embodiment of the second air guiding region is indicated by 30" and represented by another dashed line. In the third embodiment, the air guiding region 30" is formed by a surface that curves downwards in the vertical direction of the vehicle and is therefore convex and arched. This allows for highly advantageous air guiding. Overall, the air guiding regions 30, 30', and 30" are used or designed as ramps extending from the front downwards to the rear upwards along the longitudinal direction of the vehicle, thereby accelerating the airflow or floor flow compared to the airflow along the air guiding region 28. This allows for a large supply of air to the diffuser 40.

[0039] To achieve highly favorable aerodynamics, the rear axle 12 is at least partially covered by at least one other trim piece of the floor trim in the vertical direction of the vehicle. Figure 1and Figure 2 In the illustrated embodiment, it is covered and further decorated by other decorative elements 38a, 38b, and 38c. This can be seen from... Figure 2 As seen in the image, trim piece 38a curves downwards towards the driving lane 9, meaning it arches vertically downwards from the vehicle's position. Other trim pieces 38b and 38c can also use the same design.

[0040] If possible Figure 2 As seen in the image, floor trim 22 or at least one floor trim piece 24 and rear diffuser 40 are arranged spaced apart from each other longitudinally in the vehicle, wherein the rear axle 12 is positioned within the gaps, and the rear axle may be covered downwards by at least one trim piece 38, but this is not necessarily required. That is, in the embodiment not shown, no trim piece is provided between the rear axle 12 and the driving lane 9. It can also be seen from... Figure 2 The first air guide region 28, or floor trim 24, is preferably formed with a flat wall that is positioned lower than the trim 38 of the rear axle 12 in the vehicle vertical direction 32. The second air guide region 30, 30', or 30" of the floor trim 24 is also seen to have its wall positioned at its end higher than the trim 38 or higher than the wall closest to the lane 9 of the trim 38 in the vehicle vertical direction 32. Finally, the area or section of the diffuser 40 adjacent to the rear axle 12 is positioned approximately at the same height as the trim 38 in the vehicle vertical direction, wherein, in this embodiment, the wall of the diffuser 40 closest to the lane 9 is positioned higher than the spoiler edge 36 in the vehicle vertical direction.

[0041] The design and arrangement of the floor trim 22, trim piece 38, and diffuser 40 result in the following characteristics in guiding airflow beneath the vehicle floor: air guided along the first air guiding area 28 extends parallel to or substantially parallel to the lane 9. In the second air guiding area 30, air is guided vertically upwards away from the lane 9 towards or towards the rear axle 12. This upward steering causes the floor flow to be accelerated in front of the rear axle, where it is then separated by the spoiler edge 36 of the floor trim piece 24. The airflow is then further optimized in its direction, so that at least one trim piece 38 of the rear axle 12 is advantageously aligned with the airflow. This reduces rear axle lift and vehicle aerodynamic drag, which reduces CO2 emissions and improves driving dynamics. Furthermore, this structure allows for a greater ground clearance in front of the rear axle.

[0042] From Figure 2 The orientation of the air guide area 30 can be generally flat, concave, or convex, or in some areas. The floor trim 24 may have a wall area that protrudes rearward in the vehicle longitudinal direction beyond the spoiler edge 36 and is at least partially, particularly primarily, or entirely higher than the spoiler edge 36 in the vehicle vertical direction, or the spoiler edge 36 is as... Figure 2 The image shows the last element or region of the floor trim 24 in the longitudinal direction of the vehicle. Here, the spoiler edge 36 ends at the free end E, thus forming the free end E of the floor trim 24.

[0043] The spoiler edge 36 may extend over the entire width of the floor trim 24 extending laterally across the vehicle, or only over a portion of its width, and / or within multiple spaced-apart width portions of the floor trim 24 or the floor trim 22. The floor trim 22 may include the floor trim 24, which, for example, is arranged beside and spaced apart from the driveshaft passage, or the floor trim 22 extends over at least almost the entire width of the floor extending laterally across the vehicle.

[0044] The floor trim 24 causes the floor airflow in front of the rear axle 12 to be accelerated by the upward steering caused by the air guide area 30, and then selectively separated at or from the floor trim 24 by the spoiler edge 36. This results in a particularly large amount of air being directed toward the diffuser 40, and the air can be advantageously directed around and / or under the rear axle 12 by the clearly defined spoiler. Additionally, the trim pieces 38a-38c, also known as hoods, can advantageously counter-airflow, thereby maintaining low lift at the rear axle 12 and low drag on the vehicle 10. This results in favorable vehicle dynamics and allows for highly efficient driving of the vehicle 10. Furthermore, the floor trim 22 allows for a large ground clearance in front of the rear axle 12.

Claims

1. A floor trim piece (24) for a vehicle (10) having a first air guide region (28) and a second air guide region (30, 30', 30") that extends rearwardly along the vehicle longitudinal direction (20) and is connected to the first air guide region (28) and bends from the first air guide region (28), the second air guide region extending in the vehicle longitudinal direction (20) from the lower front to the upper rear away from the first air guide region (28). Its characteristics are, The spoiler edge (36) is connected to the second air guiding area (30, 30', 30"), and the airflow guided along the second air guiding area (30, 30', 30") is separated at the spoiler edge in a prescribed manner when the vehicle (10) moves forward. The spoiler edge (36) is located at the edge area following the second air guiding area (30, 30', 30") along the longitudinal direction (20) of the vehicle, and the edge area extends downward in a manner parallel or inclined relative to the vertical direction (32) of the vehicle along its entire extension range. Extending away from the second air guide area (30, 30', 30"), the rear axle (12) of the vehicle is arranged in the longitudinal direction (20) behind the floor trim (24), and the wheels (14) are mounted on the rear axle, wherein the rear axle (12) is at least partially covered downward in the vertical direction (32) of the vehicle by other trim pieces (38a, 38b, 38c) arranged in the longitudinal direction (20) behind the floor trim (24), wherein the spoiler edge is a vertical surface of the floor trim pointing downward in the vertical direction of the vehicle from the rear end of the second air guide area.

2. The floor decoration component according to claim 1, characterized in that, The turbulence edge (36) is located at the edge that extends downward from the second air guiding area.

3. The floor trim (24) according to any one of the preceding claims, characterized in that, The second air guiding area (30,30',30") is adjacent to the first air guiding area (28).

4. The floor trim (24) according to claim 1 or 2, characterized in that, The turbulence edge (36) is located at the end edge of the second air guiding area (30,30',30").

5. The floor trim (24) according to claim 1 or 2, characterized in that, The second air guiding region (30, 30', 30") is designed to be integrated with the first air guiding region (28) and / or the spoiler edge (36).

6. The floor trim (24) according to claim 1 or 2, characterized in that, The first air guidance zone (28) extends parallel to the driving lane (9).

7. A floor trim (22) assembly on the body structure (13) of a vehicle (10), wherein, The floor of the vehicle body structure (13) is at least partially covered downward in the vertical direction (32) of the vehicle by the floor trim (22), which has at least one floor trim element (24) according to any one of the preceding claims.

8. The assembly according to claim 7, characterized in that, A diffuser (40) of the vehicle (10) is disposed behind the rear axle (12) in the longitudinal direction of the vehicle (20).

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