Rotatable aerodynamic device with vehicle light
The rotatable aerodynamic device with integrated lighting adapts to vehicle positions, addressing the challenge of balancing lighting orientation, intensity, and aerodynamics, ensuring compact design and legal compliance.
Patent Information
- Application Number
- PCT/CN2024/142490
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-07-31
- Filing Date
- 2024-12-25
- Publication Date
- 2026-02-05
AI Technical Summary
Existing vehicles face challenges in balancing legal requirements for exterior lighting and aerodynamics with driver visibility and compact design, particularly in managing the orientation and intensity distribution of safety-relevant lights like stop lights and fog lights.
A rotatable aerodynamic device with an integrated lighting arrangement that includes a light guide component allowing multiple intersecting light paths, enabling the lighting to adapt to different positions and orientations while maintaining compliance with legal requirements and enhancing aerodynamic performance.
The solution allows for compact integration of exterior lighting without obstructing the driver's view, adjusts light output direction and intensity according to vehicle position, and enhances aerodynamic characteristics, ensuring compliance with legal lighting standards.
Smart Images

Figure CN2024142490_05022026_PF_FP_ABST
Abstract
Description
ROTATABLE AERODYNAMIC DEVICE WITH VEHICLE LIGHTTECHNICAL FIELD
[0001] The preferred embodiment relates to a rotatable aerodynamic device for a vehicle and to a vehicle comprising such rotatable aerodynamic device.BACKGROUND
[0002] In the construction of vehicles, limitations posed by legal regulations and by a driver’s practical needs often compete with a desired compactness and / or desired aerodynamics of the vehicle. Typical requirements include an exterior lighting of the vehicle, such as stop lights, indicator lights, headlights, fog lights, reverse lights, rear fog light, etc., and a sufficiently large forward, and potentially backward, field of view for the driver, which normally is restricted by the vehicle structure.
[0003] There exists a need for an improved technique which mitigates or avoids the aforesaid problems.SUMMARY
[0004] Accordingly, there is provided an aerodynamic device according to claim 1, a vehicle according to claim 16, and a method for operating an aerodynamic device according to claim 17.
[0005] According to an aspect, an aerodynamic device for a vehicle is provided. The aerodynamic device comprises an aerodynamic component configurable to be rotatable between a first position and at least one further position different from the first position relative to a body of the vehicle, when the aerodynamic device is mounted on the vehicle. The aerodynamic device further comprises a lighting arrangement arrangeable on, and configurable to rotate with, the aerodynamic component, the lighting arrangement comprising at least one light guide component configurable to: receive, from one or more light sources of the aerodynamic device and / or of the vehicle, light to be incoupled into the light guide component when the aerodynamic component is in any of the first position and the at least one further position, and guide light which is incoupled into the light guide component towards a light outputting portion of the lighting arrangement according to a first light guiding path when the aerodynamic component is in the first position, and guide light which is incoupled into the light guide component towards the light outputting portion of the lighting arrangement according to at least one further light guiding path different from the first light guiding path when the aerodynamic component is in the at least one further position. The first light guiding path and the at least one further light guiding path intersect in the light guide component.
[0006] The lighting arrangement may be configurable to output light which is guided according to the first light guiding path to an exterior of the vehicle according to a first optical axis of the lighting arrangement, and to output light which is guided according to the at least one further light guiding path to the exterior of the vehicle according to at least one further optical axis of the lighting arrangement different from the first optical axis.
[0007] The aerodynamic device enables that an aerodynamic characteristic of the vehicle can be modified by rotationally moving the aerodynamic component. In this way, one or more driving characteristics of the vehicle, such as drag, downward pressure, etc., can be modified. Modifying the aerodynamic characteristic of the vehicle can be advantageous, in particular, depending on a driving situation, a drive mode, a driver’s driving capability and / or a driver’s individual preferences and comfort. Moreover, providing a lighting arrangement which is arrangeable on the aerodynamic component enables a compact arrangement of an exterior lighting of the vehicle, in particular without the lighting arrangement extending further into the driver’s field of view and / or without demanding additional space in the vehicle body. A compact arrangement is further improved by the light guide component, which provides for intersecting light guiding paths for light which is incoupled into the light guide component when the aerodynamic component is in any of multiple possible positions. In this way, a structural separation of the various light guiding paths is avoidable. Conversely, by providing multiple light guiding paths, the lighting arrangement enables that light which is incoupled into the light guide component when the aerodynamic component is in any of multiple possible positions can be output in a manner which is adaptable to the respective position of the aerodynamic component. This further enables a use in accordance with common legal requirements concerning an output direction and / or other light characteristics for safety-relevant vehicle lights, such as a stop light or fog lights.
[0008] The term “aerodynamic component” may denote any portion of the vehicle which is rotationally movable relative to the vehicle body, and which influences an aerodynamic characteristic of the vehicle, wherein moving the aerodynamic component changes an influence which the aerodynamic component has on the aerodynamic characteristic of the vehicle.
[0009] The first optical axis and the at least one further optical axis may be orientable to compensate at least partially a rotation of the aerodynamic component between the first position and the at least one further position with respect to a main lighting direction of the lighting arrangement relative to the exterior of the vehicle.
[0010] Compensating a rotation of the aerodynamic component with respect to a main lighting direction of the lighting arrangement enables use with a security-relevant lighting device for the vehicle, such as a stop light, a fog light, etc., which in various jurisdictions need to comply with a predefined orientation range, a predefined range of an emission angle and / or a predefined spatial intensity distribution.
[0011] The first light guiding path and the at least one further light guiding path may intersect in a light transmitting medium of the light guide component.
[0012] The light guide component may comprise a plurality of light reflecting portions. The first light guiding path may comprise reflection at one or more first light reflecting portions of the plurality of light reflecting portions, and the at least one further light guiding path may include reflection at one or more further light reflecting portions of the plurality of light reflecting portions, the one or more further light reflecting portions different from the one or more first light reflecting portions.
[0013] The light guide component may comprise a plurality of light incoupling surface regions and a plurality of light outcoupling surface regions. The first light guiding path may extend from a first light incoupling surface region to a first light outcoupling surface region, and the at least one further light guiding path extends from at least one further light incoupling surface region to at least one further light outcoupling surface region, the at least one further light incoupling surface region and the at least one further light outcoupling surface region different from the first light incoupling surface region and the first light outcoupling surface region, respectively.
[0014] The lighting arrangement may further comprise a light source arrangement comprising a plurality of light sources. A first light source of the plurality of light sources may be configurable to produce light which is incoupled into the light guide component and guided by means of the light guide component according to the first light guiding path. At least one further light source of the plurality of light sources may be configurable to produce light which is incoupled into the light guide component and guided by means of the light guide component according to the at least one further light guiding path. The first light source and the at least one further light source may be activatable separately from each other.
[0015] The first light source may be configurable to be activated when the aerodynamic device is in the first position and to be deactivated when the aerodynamic device is in the at least one further position. The at least one further light source may be configurable to be activated when the aerodynamic device is in the at least one further position and to be deactivated when the aerodynamic device is in the first position.
[0016] The aerodynamic device may further comprise a switch configurable to switch an activatability of each of the plurality of light sources based on a position of the aerodynamic component.
[0017] Additionally, or alternatively, the aerodynamic device may further comprise a control device configurable to control each of the plurality of light sources based at least partially on a position of the aerodynamic component.
[0018] The aerodynamic device may further comprise a position sensor configurable to detect a position of the aerodynamic component, and output, towards a control device of the aerodynamic device and / or of the vehicle, a sensor signal indicative of the detected position of the aerodynamic component.
[0019] The light outputting portion of the lighting arrangement may comprise at least one output lens having a plurality of output lens regions. Light which is guided by means of the light guide component according to the first light guiding path may be output through a first output lens region and light which is guided by means of the light guide component according to the at least one further light guiding path may be output through at least one further output lens region different from the first output lens region.
[0020] The aerodynamic component may be further configurable to be rotatable to a third position relative to a body of the vehicle. In addition, the at least one light guide component may be further configurable to receive, from the one or more light sources of the aerodynamic device and / or of the vehicle, light to be incoupled into the light guide component when the aerodynamic component is in the third position, and guide light which is incoupled into the light guide component towards a light outputting portion of the lighting arrangement according to a third light guiding path when the aerodynamic component is in the third position.
[0021] The aerodynamic component may be an active aerodynamic component which is automatically rotatable between the first position and the at least one further position.
[0022] The aerodynamic component may comprise a rotatable spoiler.
[0023] The rotatable spoiler may be a rotatable rear spoiler. In such case, the lighting arrangement may be configurable to constitute one or more stop lights, in particular a center high-mount stop light, CHMSL, of the vehicle.
[0024] By integrating the CHMSL in a rotatable rear spoiler, a compact arrangement of both the movable rear spoiler and the CHMSL can be achieved. In this way, no additional space in the vehicle structure for accommodating the CHMSL is required. Moreover, a rearward field of view for the driver does not need to be reduced by the provision of the CHMSL. Moreover, as the light guide component provides for various, intersecting, light guiding paths, a compact integration of the CHMSL into the rear spoiler is facilitated.
[0025] Alternatively, the rotatable spoiler may be a rotatable front spoiler. In such case, the lighting arrangement may be configurable to constitute one or more front lights and / or one or more fog lights of the vehicle.
[0026] According to another aspect, a vehicle is provided. The vehicle comprises an aerodynamic device as provided herein.
[0027] According to another aspect, a method of operating an aerodynamic device is provided. The method is performable by a control device of the aerodynamic device and / or of a vehicle on which the aerodynamic device is mounted. The aerodynamic device comprises an aerodynamic component configurable to be rotatable between a first position and at least one further position different from the first position relative to a body of the vehicle, when the aerodynamic device is mounted on the vehicle; a lighting arrangement arrangeable on, and configurable to rotate with, the aerodynamic component. The lighting arrangement comprises at least one light guide component configurable to receive, from one or more light sources of the aerodynamic device and / or of the vehicle, light to be incoupled into the light guide component, when the aerodynamic component is in any of the first position and the at least one further position, and guide light which is incoupled into the light guide component towards a light outputting portion of the lighting arrangement according to a first light guiding path when the aerodynamic component is in the first position, and guide light which is incoupled into the light guide component towards the light outputting portion of the lighting arrangement according to at least one further light guiding path different from the first light guiding path when the aerodynamic component is in the at least one further position, wherein the first light guiding path and the at least one further light guiding path intersect in the light guide component, and a light source arrangement comprising a plurality of light sources, wherein a first light source of the plurality of light sources is configurable to produce light which is incoupled into the light guide component and guided by means of the light guide component according to the first light guiding path, and wherein at least one further light source of the plurality of light sources is configurable to produce light which is incoupled into the light guide component and guided by means of the light guide component according to the at least one further light guiding path, wherein the first light source and the at least one further light source are activatable separately from each other. The aerodynamic device further comprises a position sensor configurable to detect a position of the aerodynamic component, and output, towards the control device of the aerodynamic device and / or of the vehicle, a sensor signal indicative of the detected position of the aerodynamic component. The method comprises receiving, from the position sensor, a sensor signal indicative of a detected position of the aerodynamic component; determining, based on the received sensor signal, whether the detected position corresponds to a first position or at least one further position of the aerodynamic component; and controlling, based at least partially on the determined first or at least one further position of the aerodynamic component, an activation of the first light source or the at least one further light source of the light source arrangement.BRIEF DESCRIPTION OF DRAWINGS
[0028] Further details and advantages of the disclosure will be apparent from the drawings and the detailed description. There is shown in: Fig. 1 is an aerodynamic device according to an example; Figs. 2A to 2C are various positions of an aerodynamic device according to another example; Fig. 3 is a spatial light distribution according to each of various light guiding paths of an aerodynamic device; Fig. 4 is a graph of the relative light intensity for each of various light guiding paths depending on a rotational position of an aerodynamic device; Fig. 5 is a vehicle according to an example, and Fig. 6 is a method of operating an aerodynamic device according to an example.DESCRIPTION OF EMBODIMENTS
[0029] Fig. 1 shows schematically and exemplarily a cross-section of an aerodynamic device 100 for a vehicle. The aerodynamic device 100 comprises an aerodynamic component 110. The aerodynamic device 100 further comprises a lighting arrangement 120, which is arranged on the aerodynamic component 110. The cross-section corresponds to a vertical longitudinal plane of a vehicle on which the aerodynamic device can be mounted. Furthermore, in the shown example, the lighting arrangement 120 is arranged essentially inside the aerodynamic component 110 and is configured to output light to an exterior of the aerodynamic component 110.
[0030] As will be described in more detail below, the aerodynamic component 110 is configured to be rotatable relative to a body of the vehicle between multiple positions about a transversal axis of the aerodynamic device 100. One or more aerodynamic characteristics of the aerodynamic component 100 are variable depending on the rotational position of the aerodynamic component 110. In addition, the lighting arrangement 120 is arranged on the aerodynamic component 110 in such way that it rotates in accordance with the rotation of the aerodynamic component 110.
[0031] In the shown example, the aerodynamic device 100 is a rear spoiler for a vehicle, and the lighting arrangement 120 constitutes a center high mount stop light of the vehicle. In other examples, other rotatable aerodynamic devices for a vehicle, such as a rotatable front spoiler, and / or other vehicle lights, such as one or more fog lights, which are arranged on the aerodynamic component, are implemented.
[0032] The lighting arrangement 120 comprises a light guide component 140. The light guide component 140 is configured to receive light which is incoupled to the light guide component 140 at a light incoupling portion 142 of the light guide component 140 and to guide the incoupled light towards a light outcoupling portion 144 of the light guide component 140. Moreover, as shown schematically in Fig. 1, the light guide component 140 comprises multiple light reflecting portions 146, 148, 150, which provide for internal reflection of the incoupled light in the light guide component 140. In some examples, the light guide component 140 comprises a light transmitting medium, such as transparent glass, plastic, gas, or air, for guiding the incoupled light.
[0033] As schematically shown in Fig. 1, the light guide component 140 provides for a plurality of light guiding paths LP1, LP2, LP3 on which light that is incoupled to the light guide component 140 through any of multiple light incoupling surface regions 152, 154, 156 at the light incoupling portion 142 of the light guide component 140 can be guided. For example, light which is incoupled to the light guide component 140 through a first light incoupling surface region 152 is guided by the light guide component 140 in accordance with a first light guiding path LP1. The first light guiding path LP1 comprises reflection of the incoupled light at a first light reflecting portion 146, reflecting the incoupled light towards a first light outcoupling surface region 158 at the light outcoupling portion 144 of the light guide component 140. Similarly, light which is incoupled to the light guide component 140 through a second light incoupling surface 154 is guided in accordance with a second light guiding path LP2, which comprises reflection at a second light reflecting portion 148 reflecting the incoupled light towards a second light outcoupling surface region 160 of the light guide component 140. In the shown example, the light guide component 140 additionally provides for a third light guiding path LP3, on which light incoupled to the light guide component 140 through a third light incoupling surface region 156 is guided towards a third light reflecting portion 150 and from there to a third light outcoupling surface region 162 at the light outcoupling portion 144 of the light guide component 140.
[0034] In the shown example, three light guiding paths LP1, LP2, LP3 are provided in the light guide component 140. In other examples, the plurality of light guiding paths in the light guide component comprises more or less than three light guiding paths.
[0035] Furthermore, in the shown example, one reflecting portion 146, 148, 150 is provided in each light guiding path LP1, LP2, LP3, which facilitates guiding the incoupled light from the light incoupling portion 142 to the light outcoupling portion. In other examples, a larger number of light reflecting portions are provided in one or more of the light guiding paths, for example, for enabling multiple internal reflections of incoupled light at an optical boundary of a light transmitting medium of the light guide component 140.
[0036] Light which is guided in accordance with any of the light guiding paths LP1, LP2, LP3 is outcoupled from the light guide component 140 through corresponding ones of the light outcoupling surface regions 158, 160, 162. The outcoupled light is output towards an exterior of the aerodynamic device 100, and of the vehicle on which the aerodynamic device 100 is mounted, at a light outputting portion 122 of the lighting arrangement 120.
[0037] Light which is guided in accordance with the first light guiding path LP1 and which is output through the first light outcoupling surface region 158 is output at the light outputting portion 122 in accordance with a first optical axis A1 of the lighting arrangement 120. Similarly, light which is guided in accordance with the second light guiding path LP2 and which is output through the second light outcoupling surface region 160 is output at the light outputting portion 122 in accordance with a second optical axis A2 of the lighting arrangement 120. Moreover, in the shown example, light which is guided in accordance with the third light guiding path LP3 and which is output through the third light outcoupling surface region 162 is output at the light outputting portion 122 in accordance with a third optical axis A3 of the lighting arrangement 120.
[0038] Each optical axis A1, A2, A3 is defined, for example, by the direction in which a maximum and / or a geometric center of an intensity distribution of the light propagates which has been guided in accordance with a corresponding one of the light guiding paths LP1, LP2, LP3 and output from the lighting arrangement 120.
[0039] The aerodynamic device 100 is configured to receive light through different ones of the light incoupling surface regions 152, 154, 156 depending on a rotational position of the aerodynamic component 110. In this way, it is facilitated that light which is incoupled to the light guide component 140 is output from the aerodynamic device 100 in accordance with one or more of the first, the second or the third optical axis A1, A2, A3 depending on a rotational position of the aerodynamic component 110.
[0040] For this purpose, in the shown example, a light transmitting portion or opening is provided in a lower region of a housing of the aerodynamic component 110 through which light can be provided from an external light source (not shown) . For example, beneath the opening in the lower region of the aerodynamic component 110, a light source is arranged in the vehicle which emits a light beam towards the light guide component 140. Depending on a rotational position of the aerodynamic component 110, the light beam emitted by the light source towards the light guide component 140 reaches either the first, the second or the third light incoupling surface region 152, 154, 156 and, accordingly, is guided by means of the light guide component 140 in accordance with a corresponding one of the first, the second or the third light guiding path LP1, LP2, LP3.
[0041] In the shown example, light to be output from the aerodynamic device 100 passes through an output lens 124 of the lighting arrangement 120. The output lens 124 comprises multiple output lens regions 126, 128, 130, each of which is associated with one of the light guiding paths LP1, LP2, LP3. By means of the output lens 124, an orientation of each of the optical axes A1, A2, A3 and / or an intensity distribution of light which is output through any of the output lens regions 126, 128, 130 can be adjusted, for example, in accordance with an associated rotational position of the aerodynamic component 110 and / or in accordance with an intended purpose of the lighting arrangement 120.
[0042] Additionally or alternatively, other characteristics of the output light than the aforementioned ones can be adjusted in accordance with an associated rotational position of the aerodynamic component 110 by means of the various light guiding paths and / or the various output lens regions 126, 128, 130. For example, by providing output lens regions 126, 128, 130 which have different optical properties, a color, a dimming, a polarization, and the like, of the output light can be adjusted in accordance with an associated rotational position of the aerodynamic component 110.
[0043] In the shown example, the optical axes A1 to A3 are pairwise nonparallel to each other. In addition, the first, second and third optical axes A1, A2, A3 are oriented such that they at least partially compensate a rotation of the aerodynamic component 110 with respect to a main lighting direction of the lighting arrangement 120 relative to the exterior of the vehicle. This is achieved in combination with the selective use of different ones of the plurality of light guiding paths depending on the variable position of the aerodynamic component 110, as described in more detail below in connection with Figs. 2A to 2C.
[0044] In examples in which the aerodynamic device 100 constitutes a rotatable rear spoiler for a vehicle, the lighting arrangement 120 facilitates the provision of a center high mount stop light of the vehicle in conformity with legal regulations in various jurisdictions. For example, the lighting arrangement 120 is configured to receive light at different ones of the light incoupling surface regions 152, 154, 156 depending on a rotational position of the aerodynamic component 110, whereas the optical axes A1, A2, A3 are oriented such that, at each corresponding position of the aerodynamic component 110, light which is output at the light output portion 122 is emitted essentially in the same main lighting direction with respect to the exterior of the vehicle. This facilitates adjusting a direction and an intensity distribution of the output light in accordance with legal requirements for any position of the aerodynamic component 110, in particular keeping a direction and an intensity distribution of the output light almost constant across multiple positions of the aerodynamic component 110.
[0045] Corresponding advantages are achievable in examples in which the aerodynamic device is a rotatable front spoiler, and the lighting arrangement constitutes one or more fog lights. In such cases too, legal requirements in various jurisdictions typically pose tight restrictions on a direction and an intensity distribution of output light.
[0046] As schematically shown in Fig. 1, the first, second, and third light guiding paths LP1, LP2, LP3 intersect in the light guide component 140, for example, in a light transmitting medium of the light guide component 140. This facilitates dispensing with a plurality of spatially, and, for example, structurally, separated light guiding paths, thus improving a compact implementation of the lighting arrangement 120.
[0047] In some examples, the aerodynamic device 100 is a passive aerodynamic device, which enables changing the rotational position of the aerodynamic component 110 manually. In other examples, the aerodynamic device 100 is an active aerodynamic device, which enables changing the rotational position of the aerodynamic component 110 automatically, for example, driven by one or more actuators (not shown) .
[0048] Figs. 2A to 2C show schematically and exemplarily cross-sections of an aerodynamic device 200 according to another example, at various positions. Features of the aerodynamic device 200 which are structurally and functionally identical, or similar, to those of the aerodynamic device 100 are denoted with the same reference signs as in Fig. 1. Moreover, the above description of the aerodynamic device 100 applies correspondingly to the aerodynamic device 200 unless differently clear from the drawings and the following description.
[0049] Different from the aerodynamic device 100, the aerodynamic device 200 comprises a lighting arrangement 220, which comprises a light source arrangement 270 configured to produce light for incoupling to the light guide component 140. As the lighting arrangement 220 comprises the light source arrangement 270, it is not necessary that a housing of the aerodynamic component 210 of the aerodynamic device 200 provide a passage for external light to reach the light incoupling surface regions 152, 154, 156.
[0050] The light source arrangement 270 comprises multiple light sources 272, 274, 276, for example a plurality of light emitting diodes, LEDs, which are associated with different ones of the light incoupling surface regions 152, 154, 156, respectively. Moreover, light which is produced by any of the light sources 272, 274, 276 is incoupled to the light guide component 140 through one of the light incoupling surface regions 152, 154, 156 and guided in accordance with a corresponding one of the light guiding paths LP1, LP2, LP3, respectively. For incoupling the light generated by the light sources 272, 274, 276 into the light guide component 140, incoupling optics (not shown) of the lighting arrangement 220 are provided in some examples between one or more of the light sources 272, 274, 276 and one or more corresponding ones of the light incoupling surface regions 152, 154, 156. Moreover, in the shown example, the light sources 272, 274, 276 are arranged on a printed circuit board, PCB, of the light source arrangement 270.
[0051] The light sources 272, 274, 276 are configured to be activatable separately from each other in accordance with a position of the aerodynamic component 210.
[0052] Fig. 2A shows the aerodynamic component 210 in a first rotational position P1. Position P1 corresponds to a lowered position of the aerodynamic component 210. When the aerodynamic component 210 is in the lowered position P1, the lighting arrangement 220 is configured to generate light by means of the first light source 272, such that the produced light is guided in accordance with the first light guiding path LP1. As shown in Fig. 2A, the first optical axis A1 is oriented such that it corresponds to a main lighting direction D of the lighting arrangement 220 relative to the exterior of the vehicle, when the first light source 272 is activated while the aerodynamic component 210 is in the first position P1. At position P1, the remaining light sources 274, 276 of the light source arrangement 270 are deactivated.
[0053] Fig. 2B shows the aerodynamic device 200 at a rotational position P2 of the aerodynamic device 210 different from position P1 shown in Fig. 2A. Position P2 corresponds to a mean position of the aerodynamic component 210.
[0054] At position P2, the second light source 274 of the light source arrangement 270 is activated, whereas the first and the third light sources 272, 276 are deactivated. Light which is generated by means of the second light source 274 is incoupled to the light guide component 140 and guided in accordance with the second light guiding path LP2. As schematically shown, the second optical axis A2 of the lighting arrangement 220 is oriented such that light which is output from the aerodynamic device 200 when in position P2 corresponds essentially to the same main lighting direction D, i.e., similarly to the first optical axis A1 in the situation shown in Fig. 2A.
[0055] Thus, the aerodynamic device 200 facilitates that a main lighting direction D with respect to an exterior of the vehicle is maintained by the lighting arrangement 220 at any of multiple rotational positions of the aerodynamic component 210. This facilitates, for example, compliance with legal requirements regarding a main lighting direction and a light distribution, which are applied in many jurisdictions, when a center high mount stop light is implemented by means of the lighting arrangement 220.
[0056] Fig. 2C shows the aerodynamic device 200 at a rotational position P3 of the aerodynamic device 210 different from positions P1 or P2 shown in Figs. 2A and 2B. Position P3 corresponds to a raised position of the aerodynamic component 110.
[0057] Analogous to positions P1, P2, at position P3 the third light source 276 of the light source arrangement 270 is activated, whereas the first and the second light sources 272, 274 are deactivated. Light which is generated by means of the third light source 276 is incoupled to the light guide component 140 and guided in accordance with the third light guiding path LP3. Moreover, as schematically shown, the third optical axis A3 of the lighting arrangement 220 is oriented such that light which is output from the aerodynamic device 200 when in position P3 corresponds essentially to the main lighting direction D, i.e., similar to the first and second optical axes A1, A2 in the situations shown in Figs. 2A and 2B.
[0058] Analogously, in other examples, any number of different light paths associated with different rotational positions of the aerodynamic component 210, respectively associated with a desired main lighting direction of the aerodynamic device, can be provided.
[0059] Activating and deactivating individual ones of the multiple light sources 272, 274, 276 depending on a position of the aerodynamic component 210 is implemented in various ways in various examples of the aerodynamic device 200. In some examples, a power circuit, which is arranged in the vehicle, for operating the lighting arrangement 220 comprises an electromechanical switch which interacts with a mechanical structure of the aerodynamic device 200 such that the electromechanical switch is moved by interaction with the aerodynamic device 200 into any of various positions, thereby switching between different sub-circuits of the power circuit, thus providing electric power selectively to corresponding ones of the multiple light sources 272, 274, 276. In other examples, the aerodynamic device 200 comprises a position sensor (not shown) which detects a position of the aerodynamic component 2010 and outputs a corresponding sensor signal to a control device for the aerodynamic device. The control device activates or deactivates different ones of the light sources 272, 274, 276 based on the received sensor signal. In some examples, the control device is implemented as a part (not shown) of the aerodynamic device 200. In other examples, the control device is implemented as a control device of the vehicle on which the aerodynamic device 200 is mounted.
[0060] Fig. 3 shows schematically a spatial distribution of a light intensity with respect to a same reference lighting direction for each of various light guiding paths of an aerodynamic device as provided herein, in which a position of the aerodynamic component is maintained constant. The first distribution (a) corresponds to an intensity distribution of light which is emitted via the first light guiding paths LP1 in the above examples. The second distribution (b) corresponds to an intensity distribution of light which is emitted via the second light guiding path LP2 in the above examples. The third distribution (c) corresponds to an intensity distribution of light which is emitted via the third light guiding path LP3 in the above examples.
[0061] As can be seen, a relative distribution of the light intensity is substantially constant in all distributions (a) to (c) , whereas a center of the distribution of the light intensity shifts downwards. This corresponds to the varying orientation of the optical axes A1, A2, A3, which exhibit an increasing downward orientation relative to the aerodynamic component, such as shown in Fig. 1.
[0062] Fig. 4 shows the relative light intensity produced by each of the light guiding paths LP1, LP2, LP3 as it is detected when viewed against the main lighting direction D. The relative light intensities are plotted over the rotation angle of the aerodynamic component, including position P1 at 0 degrees, position P2 at 10 degrees, and position P3 at 20 degrees.
[0063] As can be seen from the graphs in Fig. 4, suitably switching between the different light guiding paths according to each of different positions P1, P2, P3 enables that a light intensity which is emitted in the main lighting direction D is kept maximal. Moreover, an intensity of light which is emitted in directions other than the main lighting direction can be minimized.
[0064] Fig. 5 shows schematically and exemplarily a vehicle 500. The vehicle 500 comprises an aerodynamic device 502, which comprises an aerodynamic component 510 on which a lighting arrangement 530 is arranged. The aerodynamic device 502 is an aerodynamic device in accordance with one or more of the examples described above in connection with Figs. 1 to 4.
[0065] In the shown example, the aerodynamic device 502 is an active rear spoiler of the vehicle 500, and the lighting arrangement 530 constitutes a center high mount spotlight of the vehicle 500. The aerodynamic component 510 is rotatable about a transversal axis, parallel to a rotation direction R, as indicated in Fig. 5 by the curved arrow.
[0066] The vehicle 500 further comprises a vehicle system 520. The vehicle system 520 comprises the aerodynamic device 502, a battery 522 and an electronic control unit 524 operatively connected to each other. The battery 522 is configured to power one or more actuators (not shown) of the active rear spoiler 502 and the lighting arrangement 530.
[0067] In the shown example, the aerodynamic device 502 comprises a position sensor 512 which detects a rotational position of the aerodynamic component 510 and outputs a corresponding sensor signal to the electronic control unit 524 of the vehicle system 520. The electronic control unit 524 is configured to operate the lighting arrangement 530 in accordance with the position of the aerodynamic component 510 as indicated by the sensor signal provided by means of the position sensor 512. Thus, the electronic control unit 524 functions as a control device for the aerodynamic device 502.
[0068] In other examples of the vehicle 500, other implementations of an aerodynamic device as described herein are implemented.
[0069] Fig. 6 shows a flow diagram of a method 600 for operating an aerodynamic device as provided herein. The method 600 is executable by means of a control device for the aerodynamic device, such as electronic control unit 524.
[0070] The method 600 comprises receiving a sensor signal indicative of a detected position of the aerodynamic component of the aerodynamic device, step 610. The sensor signal is received from a position sensor which is configured to detect the position of the aerodynamic component of the aerodynamic device.
[0071] The method 600 further comprises determining whether the detected position corresponds to a first position or at least one further position of the aerodynamic component, step 620. The determining is performed based on the received sensor signal.
[0072] The method 600 further comprises controlling an activation of a first light source or at least one further light source of a light source arrangement of a lighting arrangement of the aerodynamic device, step 630. Controlling the activation is performed based at least partially on the determined first or at least one further position of the aerodynamic component.
[0073] In the above examples, an aerodynamic device has been described in connection with a rear spoiler on which a center high mount stop light for a vehicle is arranged. In other examples, the aerodynamic devices comprises a rotatable front spoiler. In some of these examples, the lighting arrangement constitutes one or more fog lights of the vehicle. Furthermore, it will be understood that the same or similar advantages as described above are achievable in connection with other aerodynamic devices and / or other vehicle lights.
Claims
1.Aerodynamic device (100; 200; 502) for a vehicle (500) , the aerodynamic device (100; 200; 502) comprising:- an aerodynamic component (110; 210; 510) configurable to be rotatable between a first position (P1) and at least one further position (P2, P3) different from the first position (P1) relative to a body of the vehicle (500) when the aerodynamic device (100; 200; 502) is mounted on the vehicle (500) , and- a lighting arrangement (120; 220; 530) arrangeable on, and configurable to rotate with, the aerodynamic component (110; 210; 510) , the lighting arrangement (120; 220; 530) comprising at least one light guide component (140) configurable to:ο receive, from one or more light sources (272, 274, 276) of the aerodynamic device (200; 502) and / or of the vehicle (500) , light to be incoupled into the light guide component (140) when the aerodynamic component (110; 210; 510) is in any of the first position (P1) and the at least one further position (P2, P3) , andο guide light which is incoupled into the light guide component (140) towards a light outputting portion (122) of the lighting arrangement (120; 220; 530) according to a first light guiding path (LP1) when the aerodynamic component (110; 210; 510) is in the first position (P1) , and guide light which is incoupled into the light guide component (140) towards the light outputting portion (122) of the lighting arrangement (120; 220; 530) according to at least one further light guiding path (LP2, LP3) different from the first light guiding path (LP1) when the aerodynamic component (110; 210; 510) is in the at least one further position (P2, P3) , wherein the first light guiding path (LP1) and the at least one further light guiding path (LP2, LP3) intersect in the light guide component (140) .2.Aerodynamic device according to claim 1, wherein the lighting arrangement (120; 220; 530) is configurable to:- output light which is guided according to the first light guiding path (LP1) to an exterior of the vehicle (500) according to a first optical axis (A1) of the lighting arrangement (120; 220; 530) , and to output light which is guided according to the at least one further light guiding path (LP2, LP3) to the exterior of the vehicle (500) according to at least one further optical axis (A2, A3) of the lighting arrangement (120; 220; 530) different from the first optical axis (A1) .3.Aerodynamic device according to claim 2, wherein the first optical axis (A1) and the at least one further optical axis (A2, A3) are orientable to compensate at least partially a rotation of the aerodynamic component (110; 210; 510) between the first position (P1) and the at least one further position (P2, P3) with respect to a main lighting direction (D) of the lighting arrangement (120; 220; 530) relative to the exterior of the vehicle (500) .4.Aerodynamic device according to any one of the preceding claims, wherein the first light guiding path (LP1) and the at least one further light guiding path (LP2, LP3) intersect in a light transmitting medium of the light guide component (140) .5.Aerodynamic device according to any one of the preceding claims, wherein the light guide component (140) comprises a plurality of light reflecting portions (146, 148, 150) , wherein:- the first light guiding path (LP1) comprises reflection at one or more first light reflecting portions (146) of the plurality of light reflecting portions (146, 148, 150) , and- the at least one further light guiding path (LP2, LP3) includes reflection at one or more further light reflecting portions (148, 150) of the plurality of light reflecting portions (146, 148, 150) , the one or more further light reflecting portions (148, 150) different from the one or more first light reflecting portions (146) .6.Aerodynamic device according to any one of the preceding claims, wherein the light guide component (140) comprises a plurality of light incoupling surface regions (152, 154, 156) and a plurality of light outcoupling surface regions (158, 160, 162) , wherein:- the first light guiding path (LP1) extends from a first light incoupling surface region (152) to a first light outcoupling surface region (158) , and- the at least one further light guiding path (LP2, LP3) extends from at least one further light incoupling surface region (154, 156) to at least one further light outcoupling surface region (160, 162) , the at least one further light incoupling surface region (154, 156) and the at least one further light outcoupling surface region (160, 162) different from the first light incoupling surface region (152) and the first light outcoupling surface region (158) , respectively.7.Aerodynamic device according to claim 6, wherein the lighting arrangement (120; 220; 530) further comprises:a light source arrangement (270) comprising a plurality of light sources (272, 274, 276) , wherein a first light source (272) of the plurality of light sources (272, 274, 276) is configurable to produce light which is incoupled into the light guide component (140) and guided by means of the light guide component (140) according to the first light guiding path (LP1) , and wherein at least one further light source (274, 276) of the plurality of light sources (272, 274, 276) is configurable to produce light which is incoupled into the light guide component (140) and guided by means of the light guide component (140) according to the at least one further light guiding path (LP2, LP3) ,wherein the first light source (272) and the at least one further light source (274, 276) are activatable separately from each other.8.Aerodynamic device according to claim 7, wherein the first light source (272) is configurable to be activated when the aerodynamic device (100; 200; 502) is in the first position (P1) and to be deactivated when the aerodynamic device (100; 200; 502) is in the at least one further position (P2, P3) , and wherein the at least one further light source (274, 276) is configurable to be activated when the aerodynamic device (100; 200; 502) is in the at least one further position (P2, P3) and to be deactivated when the aerodynamic device (100; 200; 502) is in the first position (P1) .9.Aerodynamic device according to claim 7 or claim 8, further comprising:- a switch configurable to switch an activatability of each of the plurality of light sources (272, 274, 276) based on a position of the aerodynamic component (110; 210; 510) , and / or- a control device configurable to control each of the plurality of light sources (272, 274, 276) based at least partially on a position of the aerodynamic component (110; 210; 510) .10.Aerodynamic device according to any one of claims 7 to 9, further comprising a position sensor (512) configurable to:- detect a position of the aerodynamic component (110; 210; 510) , and- output, towards a control device of the aerodynamic device (100; 200; 502) and / or of the vehicle (500) , a sensor signal indicative of the detected position of the aerodynamic component (110; 210; 510) .11.Aerodynamic device according to any one of the preceding claims, wherein the light outputting portion (122) of the lighting arrangement (120; 220; 530) comprises an output lens (124) having a plurality of output lens regions (126, 128, 130) , wherein light which is guided by means of the light guide component (140) according to the first light guiding path (LP1) is output through a first output lens region (126) and light which is guided by means of the light guidecomponent (140) according to the at least one further light guiding path (LP2, LP3) is output through at least one further output lens region (128, 130) different from the first output lens region (126) .12.Aerodynamic device according to any one of the preceding claims, wherein the aerodynamic component (110; 210; 510) is an active aerodynamic component which is automatically rotatable between the first position (P1) and the at least one further position (P2, P3) .13.Aerodynamic device according to any one of the preceding claims, wherein the aerodynamic component (110; 210; 510) comprises a rotatable spoiler.14.Aerodynamic device according to claim 13, wherein the rotatable spoiler is a rotatable rear spoiler, and the lighting arrangement (120; 220; 530) is configured to constitute one or more stop lights, in particular a center high-mount stop light, of the vehicle (500) .15.Aerodynamic device according to any one of claims 1 to 13, wherein the rotatable spoiler is a rotatable front spoiler, and the lighting arrangement (130; 230) is configured to constitute one or more front lights and / or one or more fog lights of the vehicle (500) .16.Vehicle (500) comprising an aerodynamic device (100; 200; 502) according to any one of the preceding claims.17.Method (600) of operating an aerodynamic device (100; 200; 502) , the method performable by a control device (524) of the aerodynamic device (100; 200; 502) and / or of a vehicle (500) on which the aerodynamic device (100; 200; 502) is mounted, the aerodynamic device (100; 200; 502) comprising:- an aerodynamic component (110; 210; 510) configurable to be rotatable between a first position (P1) and at least one further position (P2, P3) different from the first position (P1) relative to a body of the vehicle (500) when the aerodynamic device (100; 200; 502) is mounted on the vehicle (500) ;- a lighting arrangement (120; 220; 530) arrangeable on, and configurable to rotate with, the aerodynamic component (110; 210; 510) , the lighting arrangement (120; 220; 530) comprising:ο at least one light guide component (140) configurable to receive, from one or more light sources (272, 274, 276) of the aerodynamic device (100; 200; 502) and / or of the vehicle (500) , light to be incoupled into the light guide component (140) when the aerodynamic component (110; 210; 510) is in any of the first position (P1) and the at least one further position (P2, P3) , and guide light which is incoupled into the light guide component (140) towards a light outputting portion (122) of the lighting arrangement (120; 220; 530) according to a first light guiding path (LP1) when the aerodynamic component (110; 210; 510) is in the first position (P1) , and guide light which is incoupled into the light guide component (140) towards the light outputting portion (122) of the lighting arrangement (120; 220; 530) according to at least one further light guiding path (LP2, LP3) different from the first light guiding path (LP1) when the aerodynamic component (110; 210; 510) is in the at least one further position (P2, P3) , wherein the first light guiding path (LP1) and the at least one further light guiding path (LP2, LP3) intersect in the light guide component (140) , andο a light source arrangement (270) comprising a plurality of light sources (272, 274, 276) , wherein a first light source (272) of the plurality of light sources (272, 274, 276) is configurable to produce light which is incoupled into the light guide component (140) and guided by means of the light guide component (140) according to the first light guiding path (LP1) , and wherein at least one further light source (274, 276) of the plurality of light sources (272, 274, 276) is configurable to produce light which is incoupled into the light guide component (140) and guided by means of the light guide component (140) according to the at least one further light guiding path (LP2, LP3) , wherein the first light source (272) and the at least one further light source (274, 276) are activatable separately from each other, and- a position sensor configurable to detect a position of the aerodynamic component (110; 210; 510) , and output, towards the control device (524) , a sensor signal indicative of the detected position of the aerodynamic component (110; 210; 510) ,wherein the method (600) comprises:- receiving (610) , from the position sensor, a sensor signal indicative of a detected position (P1, P2, P3) of the aerodynamic component (110; 210; 510) ;- determining (620) , based on the received sensor signal, whether the detected position corresponds to a first position (P1) or at least one further position (P2, P3) of the aerodynamic component (110; 210; 510) ;- controlling (630) , based at least partially on the determined first or at least one further position (P1, P2, P3) of the aerodynamic component (110; 210; 510) , an activation of the first light source (272) or the at least one further light source (274, 276) of the light source arrangement (270) .
Citation Information
Patent Citations
Indicator light
CN103517829A
Mobile rear plate comprising an embedded lighting device
CN111976849A
Rear wing with brake light
DE102018100819A1
Motor vehicle lighting unit illuminates a rear spoiler with a wing of transparent material such as plexiglass
DE202006010701U1
Lighting system for a motor vehicle with active aerodynamic element
US20180281669A1