Vehicle sun visor control method, vehicle sun visor mechanism and vehicle

Abstract

The present invention relates to the field of vehicle technology, and discloses a vehicle sun visor control method, a vehicle sun visor mechanism and a vehicle, wherein the vehicle sun visor control method comprises: obtaining a first difference and a second difference in real time; wherein the first difference is the difference between the brightness of the area above the eyes of the vehicle passenger and the brightness of the area below the eyes, and the second difference is the difference between the changes in the facial brightness of the vehicle passenger; and controlling the sun visor accordingly according to the first difference and the second difference. The vehicle sun visor control method of the present invention can realize that the passenger does not need to manually adjust the sun visor during driving, especially for the driver, so that the driver can concentrate on driving, improving driving safety and driving experience.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a vehicle sun visor control method, a vehicle sun visor mechanism and a vehicle. Background Art

[0002] When a vehicle is driving, passengers are easily exposed to sunlight in the cab due to the influence of buildings and sunlight. Therefore, sun visors are installed in the front cab and co-pilot seat to prevent the driver and passengers from being exposed to direct sunlight.

[0003] Currently, most of the sun visors installed in vehicles are manual visors, which require the driver or passengers to manually adjust the sun visors to achieve the effect of sun protection and anti-glare. When the light angle changes or the passenger's sitting posture changes, the passenger needs to constantly adjust the angle of the sun visor, affecting driving safety. Summary of the invention

[0004] The invention provides a vehicle sun visor control method, a vehicle sun visor mechanism and a vehicle, which are used to realize intelligent control of opening of the sun visor and improve driving safety.

[0005] A first aspect of the present invention provides a vehicle sun visor control method, the method comprising:

[0006] Acquire a first difference and a second difference in real time; wherein the first difference is the difference between the brightness of the area above the eyes and the brightness of the area below the eyes of the vehicle passenger, and the second difference is the difference in the change of the facial brightness of the vehicle passenger;

[0007] The sun visor is controlled accordingly according to the first difference and the second difference.

[0008] Optionally, the controlling the sun visor accordingly according to the first difference and the second difference includes:

[0009] Determining whether the first difference is greater than a first target threshold;

[0010] When it is determined that the first difference is greater than the first target threshold, controlling the sun visor to unfold;

[0011] When it is determined that the first difference is not greater than the first target threshold, determining whether the second difference is greater than a second target threshold;

[0012] When it is determined that the second difference is greater than the second target threshold, the sun visor is controlled to unfold.

[0013] Optionally, after controlling the sun visor to unfold, the method further includes:

[0014] Determining whether the first difference is less than the first target threshold;

[0015] When it is determined that the first difference is less than the first target threshold, the sun visor is controlled to remain in the unfolded state.

[0016] Optionally, after determining whether the first difference is less than the first target threshold, the method further includes:

[0017] When it is determined that the first difference is not less than the first target threshold, the sun visor is controlled to be retracted.

[0018] A second aspect of the present invention provides a vehicle sun visor mechanism, comprising a sun visor, a drive assembly, a brightness detection device and a controller, wherein:

[0019] The brightness detection device is connected to the controller, the controller is connected to the driving assembly, the controller is used to control the driving assembly to drive the sun visor to perform corresponding control, and the controller is used to implement the vehicle sun visor control method described above.

[0020] Optionally, the brightness detection device is fixedly mounted on the A-pillar decorative panel of the vehicle.

[0021] Optionally, the driving assembly includes a driving motor, a driving motor mounting bracket, a gear set, a rotating shaft, a first rotating shaft bracket and a second rotating shaft bracket; the gear set includes a first gear and a second gear meshing with each other; the first rotating shaft bracket and the second rotating shaft bracket are fixedly installed in the vehicle roof;

[0022] The drive motor mounting bracket is fixedly installed in the vehicle roof, and the drive motor is fixedly installed in the drive motor mounting bracket;

[0023] The first gear is sleeved on the output shaft of the driving motor, the second gear is sleeved on one end of the rotating shaft, and the other end of the rotating shaft passes through the first rotating shaft bracket, the rotating shaft mounting portion of the sun visor and the second rotating shaft bracket in sequence.

[0024] A third aspect of the present invention provides a vehicle, wherein the vehicle comprises the vehicle sun visor mechanism as described in any one of the second aspect of the present invention.

[0025] In the solution provided by the present invention, a first difference and a second difference are obtained in real time; wherein the first difference is the difference between the brightness of the area above the eyes and the brightness of the area below the eyes of the vehicle passenger, and the second difference is the difference in the change of the facial brightness of the vehicle passenger; the sun visor is controlled accordingly according to the first difference and the second difference, thereby solving the problem of intelligent regulation of the sun visor by the vehicle passengers during driving without manually adjusting the sun visor, thereby improving the riding experience of the passengers and the driving safety of the driver. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0027] Figure 1 is a three-dimensional diagram of a vehicle sun visor mechanism in one embodiment of the present invention;

[0028] Figure 2 is a side view of a vehicle sun visor mechanism in one embodiment of the present invention;

[0029] Figure 3 is a schematic diagram of a flow chart of the control method S10-S20 in one embodiment of the present invention;

[0030] Figure 4 It is a flowchart of the control method S201-S204 in one embodiment of the present invention.

[0031] The accompanying drawings in the specification are as follows:

[0032] 1-sun visor; 2-driving assembly; 21-driving motor; 22-driving motor mounting bracket; 231-first gear; 232-second gear; 24-rotating shaft; 251-first rotating shaft bracket; 252-second rotating shaft bracket; 3-brightness detection device; 4-A-pillar decorative panel. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0035] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0036] A first aspect of the present invention provides a vehicle sun visor mechanism, such as Figure 1 and Figure 2 As shown, the vehicle sun visor mechanism includes a sun visor 1, a drive assembly 2, a brightness detection device 3 and a controller (not shown in the figure), wherein: the brightness detection device 3 can be a camera in the driver monitoring system DMS (Driver Monitoring System) of the vehicle or a separately arranged camera, which is not specifically limited. Directly using the camera of the driver monitoring system DMS can reduce the layout cost. Among them, the camera can be fixedly installed on the vehicle A-pillar decorative plate 4 or arranged in other areas where the facial brightness of the vehicle passenger can be detected, and the specific invention is not limited. In the present invention, the difference between the brightness of the upper area and the brightness of the lower area of ​​the eyes of the vehicle passenger is detected in real time by the camera of the driver monitoring system DMS, and the difference in the facial brightness change of the vehicle passenger is detected in real time, wherein the passenger can include the driver and the co-pilot passenger, and correspondingly, the above-mentioned vehicle sun visor can specifically refer to the sun visor of the main driver's seat, and can also refer to the sun visor of the co-pilot seat, which is not specifically limited. The camera can send the difference detection result to the controller in real time, and the controller controls the drive assembly 2 to drive the sun visor 1 to unfold or retract according to the difference detection result.

[0037] In one embodiment, Figure 1 and Figure 2As shown, the driving assembly 2 includes a driving motor 21, a driving motor mounting bracket 22, a gear set, a rotating shaft 24, a first rotating shaft bracket 251 and a second rotating shaft bracket 252, the gear set includes a first gear 231 and a second gear 232 meshing with each other, the first rotating shaft bracket 251 and the second rotating shaft bracket 252 are fixedly installed in the vehicle roof; the driving motor mounting bracket 22 is fixedly installed in the vehicle roof, and the driving motor 21 is fixedly installed in the driving motor mounting bracket 22; the first gear 231 is sleeved on the output shaft of the driving motor 21, and the second gear 232 is sleeved on one end of the rotating shaft 24; the other end of the rotating shaft 24 passes through the first rotating shaft bracket 251, the rotating shaft 24 mounting portion of the sun visor 1 and the second rotating shaft bracket 252 in sequence. In the above embodiment, by setting the transmission of the gear set and the matching structure of the first rotating shaft bracket 251 and the second rotating shaft bracket 252, a suitable rotation speed can be set according to the actual situation to avoid the sun visor 1 rotating too fast and causing insufficient torque, thereby improving the stability of the driving assembly 2 driving the sun visor 1.

[0038] In an application scenario, for example, when the vehicle is in motion and the sun visor 1 on the front row of the vehicle is in a retracted state, the current vehicle may be exposed to light of different intensities due to the influence of surrounding buildings and other environments. When the strong light slowly covers the faces of the passengers in the vehicle, the brightness of the area above the eyes of the passengers in the vehicle is higher, and the brightness of the area below the eyes is lower. The difference between the brightness of the area above the eyes and the brightness of the area below the eyes changes significantly.

[0039] In another application scenario, when a vehicle passenger is suddenly exposed to light, for example, when the vehicle exits a tunnel, the vehicle passenger's face is illuminated from a first light intensity inside the tunnel (such as no light or low light state) to a second light intensity outside the tunnel (such as strong light state), the strong light will quickly cover the human face. At this time, the difference between the area above the eyes and the area below the eyes of the vehicle passenger does not change significantly, while the facial brightness of the vehicle passenger will increase sharply.

[0040] During vehicle driving, the strong slow light or strong fast light in the above scenario usually requires passengers to manually adjust the sun visor to achieve the effect of sun protection and anti-glare. When the light angle changes or the passenger's sitting posture changes, the passenger needs to constantly adjust the angle of the sun visor, which affects driving safety. In order to solve this problem, based on the vehicle sun visor mechanism provided by the present invention, the present invention provides a vehicle sun visor control method, wherein the vehicle sun visor control method can be applied to a controller. Exemplarily, the controller can be integrated into the controller of the driver monitoring system DMS or be an independent vehicle controller, which is not specified by the present invention. Specifically, if Figure 3 As shown, the vehicle sun visor control method mainly includes the following steps:

[0041] S10: Acquire a first difference and a second difference in real time; wherein the first difference is the difference between the brightness of the area above the eyes and the brightness of the area below the eyes of the vehicle passenger, and the second difference is the difference in the brightness change of the face of the vehicle passenger.

[0042] Specifically, the brightness of the vehicle passenger's face can be collected in real time through the brightness detection device 3; wherein the brightness detection device 3 detects the brightness of the vehicle passenger's upper eye area, the brightness of the vehicle passenger's lower eye area, and the facial brightness, and sends the first difference between the real-time detected brightness of the vehicle passenger's upper eye area and the brightness of the lower eye area, as well as the second difference of the vehicle passenger's facial brightness change to the controller, so that the controller obtains the first difference and the second difference detected by the brightness detection device 3 in real time.

[0043] S20: Control the sun visor accordingly according to the first difference and the second difference.

[0044] Based on the first difference and the second difference obtained in step S10, the controller controls the sun visor 1 accordingly according to the first difference and the second difference. In the present invention, a first target threshold can be set in advance for the first difference between the brightness of the area above the eyes and the brightness of the area below the eyes of the vehicle passenger, and a second target threshold can be set for the second difference in the change in the facial brightness of the vehicle passenger, and a control strategy can be formulated according to the specific first difference, the first target threshold, the second difference and the second target threshold to control the sun visor accordingly. It should be noted that the above-mentioned first target threshold and the second target threshold can be calibrated according to the actual vehicle simulation lighting conditions, and are not specifically limited.

[0045] In the above embodiment, the controller controls the sun visor accordingly according to the received first difference and second difference, so that the sun visor can be intelligently adjusted during driving without manual adjustment of the sun visor, thereby improving the passenger's riding experience and the driver's driving safety.

[0046] In one embodiment, in step S20, the sun visor 1 is controlled accordingly according to the first difference and the second difference, such as Figure 4 As shown, the specific steps include:

[0047] S201: Determine whether the first difference is greater than a first target threshold.

[0048] S202: When it is determined that the first difference is greater than the first target threshold, the sun visor 1 is controlled to be unfolded.

[0049] In an application scenario, when strong light slowly covers the face of a passenger in a vehicle, the brightness of the area above the eyes of the passenger is high, and the brightness of the area below the eyes is low. The brightness detection device 3 detects that the brightness value of the area above the eyes of the passenger is 200nit, and the brightness detection device 3 detects that the brightness value of the area below the eyes of the passenger is 50nit, then the first difference is 150nit. Exemplarily, the first target threshold can be set to 100nit, at which time, it can be determined that the first difference is greater than the first target threshold, thereby controlling the drive motor 21 to unfold the sun visor 1 in the retracted state.

[0050] In the above embodiment, by analyzing the brightness difference between the upper and lower areas of the passenger's eyes during driving, when the first difference is greater than the first target threshold, the controller controls the drive assembly 2 to rotate so that the drive assembly 2 drives the sun visor 1 in the retracted state to unfold, thereby achieving the effect of sun protection for the passenger's face and anti-glare for the eyes. Especially for the driver, there is no need to manually adjust the sun visor 1 during driving, which can allow the driver to concentrate on driving, improving driving safety and driving experience.

[0051] S203: When it is determined that the first difference is not greater than the first target threshold, it is determined whether the second difference is greater than the second target threshold.

[0052] Based on considerations of actual scenarios, when a passenger's face is captured in a strong light snapshot, the difference in brightness between the area above the passenger's eyes and the area below the eyes is not obvious. In this case, if only step S202 is performed, the result may be inaccurate. Furthermore, when it is determined that the first difference is not greater than the first target threshold, the controller can determine whether the second difference in the facial brightness change of the vehicle passenger is greater than the second target threshold.

[0053] S204: When it is determined that the second difference is greater than the second target threshold, the sun visor is controlled to be unfolded.

[0054] Among them, the second difference can be understood as the difference in the change of the facial brightness of the vehicle passenger under the first light intensity and the second light intensity. The first light intensity can be understood as weak light, and the second light intensity can be understood as strong light. The first light intensity can be 50nit, and the second light intensity can be 200nit. At this time, the second difference in the change of the facial brightness of the vehicle passenger is 150nit. Assuming that the second target threshold can be set to 100nit, it can be judged that the second difference is greater than the second target threshold. At this time, the controller controls the drive component 2 to drive the sun visor 1 in the retracted state to unfold.

[0055] In the above embodiment, when the face of the passenger is captured in a snapshot of strong light, the difference between the brightness of the area above the passenger's eyes and the brightness of the area below the eyes is not obvious. Further, when the second difference in the facial brightness change of the passenger is detected to be greater than the second target threshold, the drive component 2 is controlled to drive the sun visor 1 in the retracted state to unfold, thereby achieving the effect of sun protection for the passenger's face and anti-glare for the eyes. It is worth noting that for the driver, there is no need to manually adjust the sun visor 1 during driving, which allows the driver to concentrate on driving, improving driving safety and driving experience.

[0056] In one embodiment, after controlling the sun visor 1 to unfold, the method further includes the following steps:

[0057] S205: Determine whether the first difference is less than a first target threshold.

[0058] When the sun visor 1 is in the unfolded state, light may shine on the sun visor 1, and the sun visor 1 will block the area above the passenger's eyes to a certain extent. At this time, there is a certain brightness difference between the brightness of the area above the eyes and the brightness of the area below the eyes of the vehicle passenger.

[0059] Specifically, when the sun visor 1 is in the unfolded state, the brightness detection device 3 will detect in real time the first difference between the brightness of the area above the eyes and the brightness of the area below the eyes of the vehicle passenger and send it to the controller. For example, if the brightness detection device 3 detects the brightness of the area above the eyes of the passenger as 50 nit, and the brightness detection device 3 detects the brightness of the area below the eyes of the passenger as 200 nit, then the brightness detection device 3 detects the first difference between the brightness of the area above the eyes and the brightness of the area below the eyes of the vehicle passenger as -150 nit.

[0060] S206: When it is determined that the first difference is less than the first target threshold, the sun visor 1 is controlled to remain in the unfolded state.

[0061] Based on the first difference being -150nit, it can be determined that the first difference is less than the first target threshold, which means that the sun visor 1 shields the eyes. The controller controls the drive motor 21 to drive the sun visor 1 to remain in the unfolded state, that is, to maintain the sun visor 1 in the maintained state.

[0062] In one embodiment, after determining whether the first difference is less than the first target threshold, the method further includes the following steps:

[0063] S207: When it is determined that the first difference is not less than the first target threshold, the sun visor 1 is controlled to be retracted.

[0064] In an application scenario, when the sun visor 1 is in the unfolded state, within a certain period of time, as the vehicle moves and the sunlight changes, the brightness of the area above the eyes of the vehicle passenger, the brightness of the area below the eyes, and the brightness of the area under the eyes change to a certain extent. When the strong light disappears or weakens, the brightness of the area above the eyes of the vehicle passenger, the brightness of the area below the eyes, and the brightness of the area under the eyes are basically the same.

[0065] Specifically, when the sun visor 1 is in the unfolded state, the brightness detection device 3 will send the first difference between the brightness of the upper eye area and the brightness of the lower eye area of ​​the vehicle passenger in real time to the controller. By way of example, assuming that the brightness detection device 3 detects the brightness of the upper eye area of ​​the passenger as 30 nit, and detects the brightness of the lower eye area of ​​the passenger as 40 nit, then the first difference between the brightness of the upper eye area and the brightness of the lower eye area of ​​the vehicle passenger is -10 nit. When it is determined that the first difference is not less than the first target threshold, the controller controls the drive motor 21 to drive the unfolded sun visor 1 to be folded.

[0066] In the above-mentioned embodiment, the first difference detected by the brightness detection device 3, when the first difference is not less than the first target threshold value, the controller controls the driving component 2 to drive the sun visor 1 in the unfolded state to be folded, so as to realize timely adjustment of the sun visor 1 according to actual conditions, thereby improving the flexibility of the vehicle sun visor 1 and enhancing driving pleasure.

[0067] It should be noted that the difference and target threshold in the above embodiment are only used for example and are not limiting. In actual scenarios, they can be set according to specific circumstances. For example, different first target thresholds can be set according to the actual state of the sun visor 1.

[0068] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided by the present invention can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0069] It should be understood that the order of execution of the steps in the above embodiment does not necessarily mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present invention.

[0070] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example. In actual applications, the above-mentioned functions can be distributed and completed by different functional units and modules as needed, that is, the internal architecture of the device can be divided into different functional units or modules to complete all or part of the functions described above.

[0071] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. A vehicle sun visor control method, characterized in that: The method comprises: Acquire a first difference and a second difference in real time; wherein the first difference is the difference between the brightness of the area above the eyes and the brightness of the area below the eyes of the vehicle passenger, and the second difference is the difference in the change of the facial brightness of the vehicle passenger; Controlling the sun visor accordingly according to the first difference and the second difference; The correspondingly controlling the sun visor according to the first difference and the second difference includes: Determining whether the first difference is greater than a first target threshold; When it is determined that the first difference is greater than the first target threshold, controlling the sun visor to unfold; When it is determined that the first difference is not greater than the first target threshold, determining whether the second difference is greater than a second target threshold; When it is determined that the second difference is greater than the second target threshold, the sun visor is controlled to unfold.

2. The control method according to claim 1, characterized in that: After controlling the sun visor to unfold, the method further includes: Determining whether the first difference is less than the first target threshold; When it is determined that the first difference is less than the first target threshold, the sun visor is controlled to remain in the unfolded state.

3. The control method according to claim 2, characterized in that: After determining whether the first difference is less than the first target threshold, the method further includes: When it is determined that the first difference is not less than the first target threshold, the sun visor is controlled to be retracted.

4. A vehicle sun visor mechanism, characterized in that: The vehicle sun visor comprises a driving assembly, a brightness detection device and a controller, wherein: The brightness detection device is connected to the controller, the controller is connected to the driving component, the controller is used to control the driving component to drive the sun visor to perform corresponding control, and the controller is used to implement the vehicle sun visor control method as described in any one of claims 1-3.

5. The vehicle sun visor mechanism according to claim 4, characterized in that: The brightness detection device is fixedly mounted on the A-pillar decorative plate of the vehicle.

6. The vehicle sun visor mechanism according to claim 4 or 5, characterized in that: The driving assembly includes a driving motor, a driving motor mounting bracket, a gear set, a rotating shaft, a first rotating shaft bracket and a second rotating shaft bracket; the gear set includes a first gear and a second gear meshing with each other; the first rotating shaft bracket and the second rotating shaft bracket are fixedly installed in the vehicle roof; The drive motor mounting bracket is fixedly installed in the vehicle roof, and the drive motor is fixedly installed in the drive motor mounting bracket; The first gear is sleeved on the output shaft of the driving motor, the second gear is sleeved on one end of the rotating shaft, and the other end of the rotating shaft passes through the first rotating shaft bracket, the rotating shaft mounting portion of the sun visor and the second rotating shaft bracket in sequence.

7. A vehicle, characterized in that: The vehicle comprises a vehicle sun visor mechanism as claimed in any one of claims 4 to 6.

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