Automobile sun visor lighting control system with magnetic control switch

Abstract

This invention relates to the field of lighting control technology, and more particularly to a car sun visor lighting control system with a magnetic switch, comprising: a sun visor body; a detection module disposed on the sun visor body, including a visual sensor for detecting the ambient brightness and the area of ​​contaminants on the mirror surface of the area where the sun visor is located, a gyroscope disposed on the car body for detecting the angle formed by the car body and the horizontal ground in real time, and a photoelectric sensor disposed above the sun visor body for detecting the reflectivity of the sun visor; an adjustment module connected to the detection module for adjusting the posture and angle of the sun visor; and a central control module for determining the corresponding operating mode of the sun visor based on the ambient brightness of the area where the sun visor is located, and adjusting the angle of the sun visor to the corresponding angle based on the angle formed by the car body and the horizontal ground in real time. This invention improves the accuracy of car sun visor lighting.

Description

Technical Field

[0001] This invention relates to the field of lighting control technology, and in particular to a lighting control system for automotive sun visors with a magnetic switch. Background Technology

[0002] With the rapid development of automotive technology, people are paying more and more attention to safety and comfort, and are also placing new demands on the functions of various interior accessories to meet these expectations. The car sun visor, installed above the driver and front passenger's heads, is a panel used to prevent glare from the sun. It can be flipped down when in use and tilted up / down or left / right when not in use, improving the safety and comfort of the driver and front passenger.

[0003] Chinese Patent Publication No. CN107031499A discloses a control system and control method for a vehicle sun visor interior lighting lamp. The system consists of a lighting lamp, a switch, and a power supply connected in series to form a lighting circuit. The system further includes a light sensor and a control unit. The control unit comprises a signal acquisition device that receives signals from the light sensor, a judgment unit that receives signals from the signal acquisition device, and an execution unit that receives execution signals from the judgment unit. The execution unit is a relay connected in series in the lighting circuit. Therefore, the control system and control method for the vehicle sun visor interior lighting lamp have the following problems: inaccurate determination of the aging degree of the sun visor shell leads to a decrease in the accuracy of the lighting system's brightness. Summary of the Invention

[0004] Therefore, the present invention provides an automotive sun visor lighting control system with a magnetic switch to overcome the problem in the prior art where the accuracy of the lighting system's brightness is reduced due to inaccurate determination of the aging degree of the sun visor's outer shell.

[0005] To achieve the above objectives, the present invention provides a car sun visor lighting control system with a magnetic switch, comprising: a sun visor body; a detection module disposed on the sun visor body, including a visual sensor for detecting the ambient brightness and the area of ​​contaminants on the mirror surface of the area where the sun visor is located, a gyroscope disposed on the car body for detecting the angle formed in real time between the car body and the horizontal ground, and a photoelectric sensor disposed above the sun visor body for detecting the reflectivity of the sun visor; an adjustment module connected to the detection module for adjusting the posture and angle of the sun visor; and a central control module connected to the detection module and the adjustment module for determining the corresponding operating mode of the sun visor according to the ambient brightness of the area where the sun visor is located, adjusting the angle of the sun visor to a corresponding angle according to the angle formed in real time between the car body and the horizontal ground, adjusting the extension of the protective device disposed at the bottom of the sun visor to a corresponding extension according to the reflectivity of the sun visor, and adjusting the closing speed of the sun visor cover to a corresponding speed according to the area of ​​contaminants on the mirror surface detected by the visual sensor.

[0006] The mirror cover contains a magnet for controlling the opening and closing of the lighting circuit.

[0007] Furthermore, the central control module determines two adjustment methods for the operation of the sun visor based on the ambient brightness of the surrounding environment.

[0008] The first adjustment method is that the central control module adjusts the operation mode of the sunshade to the first operation mode under the preset first brightness condition;

[0009] The second adjustment method is that the central control module adjusts the operation mode of the sunshade to the second operation mode under the preset second brightness condition;

[0010] In the first operating mode, the brightness of the current sunshade is determined by the brightness at the end of the previous opening cycle of the sunshade and the brightness of the environment where the sunshade is located. In the second operating mode, the central control module determines the corresponding posture of the sunshade according to the horizontal incident angle of sunlight, and the corresponding posture includes a first posture and a second posture.

[0011] The preset first brightness condition is that the ambient brightness of the sunshade is greater than the preset first brightness and less than or equal to the preset second brightness; the preset second brightness condition is that the ambient brightness of the sunshade is greater than the preset second brightness; and the preset first brightness is less than the preset second brightness.

[0012] Furthermore, the central control module, under a preset first brightness condition, determines three adjustment methods for the brightness of the sun visor based on the difference between the ambient brightness of the sun visor and the preset first brightness. The current brightness of the sun visor is the brightness at the end of the previous activation cycle.

[0013] The first brightness adjustment method is that the central control module adjusts the brightness of the sunshade to the first brightness using a preset second brightness adjustment coefficient under a preset first brightness difference condition.

[0014] The second brightness adjustment method is that the central control module adjusts the brightness of the sunshade to the second brightness using a preset first brightness adjustment coefficient under a preset second brightness difference condition.

[0015] The preset first brightness difference condition is that the difference between the ambient brightness of the sunshade and the preset brightness is greater than the preset first brightness difference and less than or equal to the preset second brightness difference; the preset second brightness difference condition is that the difference between the ambient brightness of the sunshade and the preset brightness is greater than the preset second brightness difference; the preset first brightness difference is less than the preset second brightness difference, and the preset first brightness adjustment coefficient is less than the preset second brightness adjustment coefficient.

[0016] Furthermore, the central control module determines two adjustment methods for the sunshade's posture based on the horizontal incident angle of sunlight under a preset second brightness condition.

[0017] The first posture adjustment method is that the central control module adjusts the posture of the sunshade to the first posture under the preset first angle condition;

[0018] The second posture adjustment method is that the central control module adjusts the posture of the sunshade to the second posture under the preset second angle condition;

[0019] The preset first angle condition is that the horizontal incident angle of sunlight is less than or equal to a preset angle; the preset second angle condition is that the horizontal incident angle of sunlight is greater than a preset angle; the central control module has a first posture and a second posture, the first posture is that the sun visor is parallel to the windshield of the car, and the second posture is that the sun visor is perpendicular to the windshield of the car.

[0020] Furthermore, the central control module determines whether the vehicle's driving slope exceeds the allowable range based on two methods, namely, the angle formed in real time between the vehicle body and the horizontal ground.

[0021] The first determination method is that the central control module determines that the vehicle's driving slope is within the allowable range under the preset first driving angle condition;

[0022] The second determination method is that the central control module determines that the vehicle's driving slope exceeds the allowable range under the preset second driving angle condition, and adjusts the sun visor angle to the corresponding angle by calculating the difference between the angle formed by the vehicle body and the horizontal ground in real time and the preset driving angle.

[0023] The first preset driving angle condition is that the angle formed between the vehicle body and the horizontal ground in real time is less than or equal to the preset driving angle; the second preset driving angle condition is that the angle formed between the vehicle body and the horizontal ground in real time is greater than the preset driving angle.

[0024] Furthermore, the central control module determines three adjustment methods for the sun visor angle based on the difference between the real-time angle formed by the car body and the horizontal ground and the preset driving angle.

[0025] The first angle adjustment method is that the central control module adjusts the sun visor angle to a preset sun visor angle under a preset first driving angle difference condition;

[0026] The second angle adjustment method is that the central control module adjusts the sun visor angle to the first angle using a preset first angle adjustment coefficient under the condition of a preset second driving angle difference.

[0027] The third angle adjustment method is that the central control module adjusts the sun visor angle to the second angle using a preset second angle adjustment coefficient under the preset third driving angle difference condition;

[0028] The preset first driving angle difference condition is that the difference between the real-time angle formed by the vehicle body and the horizontal ground and the preset driving angle is less than or equal to the preset first driving angle difference; the preset second driving angle difference condition is that the difference between the real-time angle formed by the vehicle body and the horizontal ground and the preset driving angle is greater than the preset first driving angle difference and less than or equal to the preset second driving angle difference; the preset third driving angle difference condition is that the difference between the real-time angle formed by the vehicle body and the horizontal ground and the preset driving angle is greater than the preset second driving angle difference; the preset first driving angle difference is less than the preset second driving angle difference; and the preset first angle adjustment coefficient is less than the preset second angle adjustment coefficient.

[0029] Furthermore, the central control module uses three methods to determine whether the aging degree of the sun shade exceeds the allowable range based on the reflectivity of the sun shade.

[0030] The first method for determining the degree of aging is as follows: the central control module determines that the degree of aging of the sunshade exceeds the allowable range under the preset first reflectivity condition, and adjusts the extension of the protection device to the corresponding extension by calculating the difference between the reflectivity of the sunshade and the preset first reflectivity.

[0031] The second method for determining the degree of aging is that the central control module determines that the degree of aging of the sunshade exceeds the allowable range under the preset second reflectivity condition, initially determines that the static electricity level of the sunshade exceeds the allowable range, and then makes a secondary determination of the static electricity level of the sunshade by the area of ​​contaminants on the mirror surface.

[0032] The third determination method is that the central control module determines that the aging degree of the sunshade is within the allowable range under the preset third reflectivity condition;

[0033] Wherein, the preset first reflectivity condition is that the reflectivity of the mirror is less than or equal to the preset first reflectivity; the preset second reflectivity condition is that the reflectivity of the mirror is greater than the preset first reflectivity and less than or equal to the preset second reflectivity; the preset third reflectivity condition is that the reflectivity of the mirror is greater than the preset second reflectivity; and the preset first reflectivity is less than the preset second reflectivity.

[0034] Furthermore, the central control module determines three adjustment methods for the extension of the protective device based on the difference between the reflectivity of the sunshade and a preset first reflectivity.

[0035] The first length adjustment method is that the central control module adjusts the elongation of the protection device to a preset length under a preset first reflectivity difference condition;

[0036] The second length adjustment method is that the central control module adjusts the elongation of the protection device to the first length using a preset first length adjustment coefficient under a preset second reflectivity difference condition.

[0037] The third length adjustment method is that the central control module adjusts the elongation of the protection device to the second length using a preset second length adjustment coefficient under a preset third reflectivity difference condition.

[0038] The preset first reflectivity difference condition is that the difference between the reflectivity of the sunshade and the preset first reflectivity is less than or equal to the preset first reflectivity difference; the preset second reflectivity difference condition is that the difference between the reflectivity of the sunshade and the preset first reflectivity is greater than the preset first reflectivity difference and less than or equal to the preset second reflectivity difference; the preset third reflectivity difference condition is that the difference between the reflectivity of the sunshade and the preset first reflectivity is greater than the preset second reflectivity difference; the preset first reflectivity difference is less than the preset second reflectivity difference, and the preset first length adjustment coefficient is less than the preset second length adjustment coefficient.

[0039] Furthermore, the central control module employs two secondary determination methods to assess whether the static electricity level of the sunshade is within the allowable range based on the area of ​​contaminants on the mirror surface under a preset second reflectivity condition. Among these methods,

[0040] The first secondary determination method is that the central control module determines that the static electricity level of the sunshade mirror is within the allowable range under the preset first area condition;

[0041] The second secondary determination method is that the central control module determines that the static electricity level of the sunshade exceeds the allowable range under the preset second area condition, and adjusts the closing speed of the sunshade cover to the corresponding speed by calculating the difference between the area of ​​the contaminant on the mirror surface and the preset area.

[0042] The second secondary determination method is that the central control module determines that the static electricity level of the sunshade mirror is within the allowable range under the preset second area condition;

[0043] The first preset area condition is that the area of ​​the contaminant on the mirror surface is less than or equal to a preset area; the second preset area condition is that the area of ​​the contaminant on the mirror surface is greater than a preset area.

[0044] Furthermore, the central control module determines three adjustment methods for the closing speed of the sun shade lens cover based on the difference between the area of ​​the contaminant on the mirror surface and the preset area.

[0045] The first speed adjustment method is that the central control module adjusts the closing speed of the sunshade lens cover to a preset speed under the condition of a preset first area difference.

[0046] The second speed adjustment method is that the central control module adjusts the closing speed of the sunshade cover to the first speed using a preset first speed adjustment coefficient under the condition of a preset second area difference.

[0047] The third speed adjustment method is that the central control module adjusts the closing speed of the sunshade cover to the second speed using a preset second speed adjustment coefficient under the preset third area difference condition;

[0048] Wherein, the preset first area difference condition is that the difference between the area of ​​the contaminant on the mirror surface and the preset area is less than or equal to the preset first area difference; the preset second area difference condition is that the difference between the area of ​​the contaminant on the mirror surface and the preset area is greater than the preset first area difference and less than or equal to the preset second area difference; the preset third area difference condition is that the difference between the area of ​​the contaminant on the mirror surface and the preset area is greater than the preset second area difference; the preset first area difference is less than the preset second area difference, and the preset first speed adjustment coefficient is less than the preset second speed adjustment coefficient.

[0049] Compared with the prior art, the beneficial effects of the present invention are as follows: the lighting control system of the present invention is set on the sun visor body, and the brightness of the sun visor is adjusted by setting a detection module, an adjustment module and a central control module. The central control module determines the operating mode of the sun visor according to the ambient brightness of the area where the sun visor is located. Under the second operating mode, the lighting system is turned off to reduce energy consumption. The brightness of the sun visor is adjusted to the corresponding brightness according to the difference between the ambient brightness of the sun visor and the preset brightness to reduce the impact of the sun visor's memory function on driving. The extension of the protective device is adjusted according to the reflectivity of the sun visor to reduce the impact of sun visor aging on the clarity of the sun visor. The closing speed of the sun visor cover is adjusted according to the area of ​​contaminants on the mirror surface to reduce the impact of static electricity caused by slow closing speed on the clarity of the sun visor.

[0050] Furthermore, the lighting control system of the present invention is provided with a first operating mode and a second operating mode, which can accurately control the operating mode according to the ambient brightness, thereby increasing the accuracy of the lighting control system.

[0051] Furthermore, the lighting control system of the present invention is provided with a preset first brightness difference condition and a preset second brightness difference condition, and the brightness of the sun visor is reduced according to the brightness difference to reduce the impact of excessive brightness of the sun visor on driving.

[0052] Furthermore, the lighting control system of the present invention is provided with a preset first angle condition and a preset second angle condition. The central control module adjusts the posture of the sunshade according to the difference in the horizontal incident angle of sunlight, thereby improving the flexibility of the sunshade and reducing the impact of direct sunlight on the accuracy of lighting control.

[0053] Furthermore, the lighting control system of the present invention determines the vehicle driving slope based on the real-time angle formed between the vehicle body and the horizontal ground. By setting preset first driving angle difference conditions, preset second driving angle difference conditions, and preset third driving angle difference conditions, the central control module adjusts the angle of the sun visor to further reduce the impact of sunlight on vehicle driving caused by angle changes.

[0054] Furthermore, the lighting control system of the present invention determines whether the aging degree of the sunshade is within the allowable range based on the reflectivity of the sunshade. By setting a preset first reflectivity difference condition, a preset second reflectivity difference condition, and a preset third reflectivity difference condition, the central control module adjusts the extension of the protection device to reduce the impact of sunshade aging on the clarity of the sunshade.

[0055] Furthermore, the lighting control system of the present invention makes a secondary judgment on the static electricity level of the sunshade mirror based on the area of ​​the contaminant on the mirror surface. By setting a preset first area difference condition, a preset second area difference condition, and a preset third area difference condition, the central control module adjusts the closing speed of the sunshade mirror cover by adjusting the area difference of the contaminant, thereby reducing the degree of mirror contamination by reducing the closing time of the sunshade mirror cover. Attached Figure Description

[0056] Figure 1 This is an overall structural block diagram of the automotive sun visor lighting control system with magnetic switch according to an embodiment of the present invention;

[0057] Figure 2 This is a block diagram of the detection module of the automotive sun visor lighting control system with magnetic switch according to an embodiment of the present invention;

[0058] Figure 3 This is a schematic diagram of the structure of an automotive sun visor lighting control system with a magnetic switch according to an embodiment of the present invention;

[0059] Figure 4 This is a schematic diagram of the sun visor structure of the automotive sun visor lighting control system with magnetic switch according to an embodiment of the present invention. Detailed Implementation

[0060] To make the objectives and advantages of the present invention clearer, the present invention will be further described below with reference to embodiments; it should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention.

[0061] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0062] Please see Figure 1 , Figure 2 , Figure 3 as well as Figure 4 The figures shown are, respectively, an overall structural block diagram, a detection module structural block diagram, a structural schematic diagram, and a sun visor structural schematic diagram of an automotive sun visor lighting control system with a magnetic switch according to an embodiment of the present invention; the present invention provides an automotive sun visor lighting control system with a magnetic switch, comprising:

[0063] Sunshade mirror body 2;

[0064] The detection module is set on the sun visor body 2, including a visual sensor 1 for detecting the ambient brightness and the area of ​​contaminants on the mirror surface of the area where the sun visor is located, a gyroscope set on the vehicle body for detecting the angle formed between the vehicle body and the horizontal ground in real time, and a photoelectric sensor 5 set above the sun visor body 2 for detecting the reflectivity of the sun visor.

[0065] An adjustment module, connected to the detection module, is used to adjust the posture and angle of the sun visor.

[0066] The central control module is connected to the detection module and the adjustment module respectively. It is used to determine the corresponding operation mode of the sun visor according to the ambient brightness of the area where the sun visor is located, and to adjust the angle of the sun visor to the corresponding angle according to the real-time angle formed between the car body and the horizontal ground. It is also used to adjust the extension of the protective device 6 set at the bottom of the sun visor to the corresponding extension according to the reflectivity of the sun visor, and to adjust the closing speed of the sun visor cover 8 to the corresponding speed according to the area of ​​the contaminant on the mirror surface detected by the vision sensor 1.

[0067] The mirror cover contains a magnet for controlling the opening and closing of the lighting circuit.

[0068] Specifically, an electric rotating rod 3 for changing the horizontal position of the sunshade is also provided above the sunshade body 2.

[0069] Specifically, the sunshade body 2 is also provided with an electric rotating rod 4 for controlling the closing speed of the sunshade cover.

[0070] The lighting control system of this invention is installed on the sun visor body 2. It adjusts the brightness of the sun visor by setting up a detection module, an adjustment module, and a central control module. The central control module determines the operating mode of the sun visor based on the ambient brightness of the area where the sun visor is located. Under the second operating mode, it turns off the lighting system to reduce energy consumption. It also adjusts the brightness of the sun visor to the corresponding brightness based on the difference between the ambient brightness and the preset brightness to reduce the impact of the sun visor's memory function on driving. Furthermore, it adjusts the extension of the protection device 6 based on the reflectivity of the sun visor to reduce the impact of sun visor aging on the clarity of the sun visor. Finally, it adjusts the closing speed of the sun visor cover 8 based on the area of ​​contaminants on the mirror surface to reduce the impact of excessively slow closing speed on the clarity of the sun visor due to increased static electricity.

[0071] Furthermore, the central control module determines two adjustment methods for the operation of the sun visor based on the ambient brightness of the surrounding environment.

[0072] The first adjustment method is that the central control module adjusts the operation mode of the sunshade to the first operation mode under the preset first brightness condition;

[0073] The second adjustment method is that the central control module adjusts the operation mode of the sunshade to the second operation mode under the preset second brightness condition;

[0074] In the first operating mode, the brightness of the current sunshade is determined by the brightness at the end of the previous opening cycle of the sunshade and the brightness of the environment where the sunshade is located. In the second operating mode, the central control module determines the corresponding posture of the sunshade according to the horizontal incident angle of sunlight, and the corresponding posture includes a first posture and a second posture.

[0075] The preset first brightness condition is that the ambient brightness of the sunshade is greater than the preset first brightness and less than or equal to the preset second brightness; the preset second brightness condition is that the ambient brightness of the sunshade is greater than the preset second brightness; and the preset first brightness is less than the preset second brightness.

[0076] Specifically, the ambient brightness of the sunshade is denoted as F, the preset first brightness is denoted as F1, and the preset second brightness is denoted as F2, where F1 < F2.

[0077] The lighting control system of the present invention is provided with a first operating mode and a second operating mode, which can accurately control the operating mode according to the ambient brightness, thereby increasing the accuracy of the lighting control system.

[0078] Furthermore, the central control module, under a preset first brightness condition, determines three adjustment methods for the brightness of the sun visor based on the difference between the ambient brightness of the sun visor and the preset first brightness. The current brightness of the sun visor is the brightness at the end of the previous activation cycle.

[0079] The first brightness adjustment method is that the central control module adjusts the brightness of the sunshade to the first brightness using a preset second brightness adjustment coefficient under a preset first brightness difference condition.

[0080] The second brightness adjustment method is that the central control module adjusts the brightness of the sunshade to the second brightness using a preset first brightness adjustment coefficient under a preset second brightness difference condition.

[0081] The preset first brightness difference condition is that the difference between the ambient brightness of the sunshade and the preset brightness is greater than the preset first brightness difference and less than or equal to the preset second brightness difference; the preset second brightness difference condition is that the difference between the ambient brightness of the sunshade and the preset brightness is greater than the preset second brightness difference; the preset first brightness difference is less than the preset second brightness difference, and the preset first brightness adjustment coefficient is less than the preset second brightness adjustment coefficient.

[0082] Specifically, the central control module also includes a third method for adjusting the brightness of the sun visor, which involves adjusting the brightness of the sun visor to the brightness at the end of the previous activation cycle under a preset third brightness difference condition.

[0083] Specifically, the difference between the ambient brightness of the sun visor and the preset brightness is denoted as △F, and △F is set to F-F1. The preset first brightness difference is denoted as △F1, the preset second brightness difference is denoted as △F2, the preset first brightness adjustment coefficient is denoted as α1, the preset second brightness adjustment coefficient is denoted as α2, and the brightness at the end of the previous activation cycle is denoted as C. Wherein, △F1 < △F2, 0 < α1 < α2 < 1, and the adjusted brightness of the sun visor is denoted as C', and C' is set to C × αi, where αi is the preset i-th brightness adjustment coefficient, and i = 1, 2.

[0084] The lighting control system of the present invention is equipped with a preset first brightness difference condition and a preset second brightness difference condition. The brightness of the sun visor is reduced according to the brightness difference to reduce the impact of excessive brightness of the sun visor on driving.

[0085] Furthermore, the central control module determines two adjustment methods for the sunshade's posture based on the horizontal incident angle of sunlight under a preset second brightness condition.

[0086] The first posture adjustment method is that the central control module adjusts the posture of the sunshade to the first posture under the preset first angle condition;

[0087] The second posture adjustment method is that the central control module adjusts the posture of the sunshade to the second posture under the preset second angle condition;

[0088] The preset first angle condition is that the horizontal incident angle of sunlight is less than or equal to a preset angle; the preset second angle condition is that the horizontal incident angle of sunlight is greater than a preset angle; the central control module has a first posture and a second posture, the first posture is that the sun visor is parallel to the windshield of the car, and the second posture is that the sun visor is perpendicular to the windshield of the car.

[0089] Specifically, the horizontal incident angle of sunlight is denoted as J, and the preset angle is denoted as J0.

[0090] The lighting control system of the present invention is equipped with a preset first angle condition and a preset second angle condition. The central control module adjusts the posture of the sunshade according to the difference in the horizontal incident angle of sunlight, thereby improving the flexibility of the sunshade and reducing the impact of direct sunlight on the accuracy of lighting control.

[0091] Furthermore, the central control module determines whether the vehicle's driving slope exceeds the allowable range based on two methods, namely, the angle formed in real time between the vehicle body and the horizontal ground.

[0092] The first determination method is that the central control module determines that the vehicle's driving slope is within the allowable range under the preset first driving angle condition;

[0093] The second determination method is that the central control module determines that the vehicle's driving slope exceeds the allowable range under the preset second driving angle condition, and adjusts the sun visor angle to the corresponding angle by calculating the difference between the angle formed by the vehicle body and the horizontal ground in real time and the preset driving angle.

[0094] The first preset driving angle condition is that the angle formed between the vehicle body and the horizontal ground in real time is less than or equal to the preset driving angle; the second preset driving angle condition is that the angle formed between the vehicle body and the horizontal ground in real time is greater than the preset driving angle.

[0095] Specifically, the angle formed between the car body and the horizontal ground in real time is denoted as A, the preset driving angle is denoted as A0, the difference between the angle formed between the car body and the horizontal ground in real time and the preset driving angle is denoted as △A, and △A is set to A-A0.

[0096] Furthermore, the central control module determines three adjustment methods for the sun visor angle based on the difference between the real-time angle formed by the car body and the horizontal ground and the preset driving angle.

[0097] The first angle adjustment method is that the central control module adjusts the sun visor angle to a preset sun visor angle under a preset first driving angle difference condition;

[0098] The second angle adjustment method is that the central control module adjusts the sun visor angle to the first angle using a preset first angle adjustment coefficient under the condition of a preset second driving angle difference.

[0099] The third angle adjustment method is that the central control module adjusts the sun visor angle to the second angle using a preset second angle adjustment coefficient under the preset third driving angle difference condition;

[0100] The preset first driving angle difference condition is that the difference between the real-time angle formed by the vehicle body and the horizontal ground and the preset driving angle is less than or equal to the preset first driving angle difference; the preset second driving angle difference condition is that the difference between the real-time angle formed by the vehicle body and the horizontal ground and the preset driving angle is greater than the preset first driving angle difference and less than or equal to the preset second driving angle difference; the preset third driving angle difference condition is that the difference between the real-time angle formed by the vehicle body and the horizontal ground and the preset driving angle is greater than the preset second driving angle difference; the preset first driving angle difference is less than the preset second driving angle difference; and the preset first angle adjustment coefficient is less than the preset second angle adjustment coefficient.

[0101] Specifically, the preset first driving angle difference is denoted as △A1, the preset second driving angle difference is denoted as △A2, the preset first angle adjustment coefficient is denoted as β1, and the preset second angle adjustment coefficient is denoted as β2, where △A1<△A2, 1<β1<β2, the sun visor angle is denoted as Z, the adjusted sun visor angle is denoted as Z', and Z'=Z×βj is set, where βj is the j-th angle adjustment coefficient, j=1,2.

[0102] The lighting control system of the present invention determines the vehicle driving slope based on the real-time angle formed between the vehicle body and the horizontal ground. By setting preset first driving angle difference conditions, preset second driving angle difference conditions, and preset third driving angle difference conditions, the central control module adjusts the angle of the sun visor to further reduce the impact of sunlight on vehicle driving caused by angle changes.

[0103] Furthermore, the central control module uses three methods to determine whether the aging degree of the sun shade exceeds the allowable range based on the reflectivity of the sun shade.

[0104] The first method for determining the degree of aging is as follows: the central control module determines that the degree of aging of the sunshade exceeds the allowable range under the preset first reflectivity condition, and adjusts the extension of the protection device 6 to the corresponding extension by calculating the difference between the reflectivity of the sunshade and the preset first reflectivity.

[0105] The second method for determining the degree of aging is that the central control module determines that the degree of aging of the sunshade exceeds the allowable range under the preset second reflectivity condition, initially determines that the static electricity level of the sunshade exceeds the allowable range, and then makes a secondary determination of the static electricity level of the sunshade by the area of ​​contaminants on the mirror surface.

[0106] The third determination method is that the central control module determines that the aging degree of the sunshade is within the allowable range under the preset third reflectivity condition;

[0107] Wherein, the preset first reflectivity condition is that the reflectivity of mirror 7 is less than or equal to the preset first reflectivity; the preset second reflectivity condition is that the reflectivity of mirror 7 is greater than the preset first reflectivity and less than or equal to the preset second reflectivity; the preset third reflectivity condition is that the reflectivity of mirror 7 is greater than the preset second reflectivity; and the preset first reflectivity is less than the preset second reflectivity.

[0108] Specifically, the reflectivity of mirror 7 is denoted as R, the preset first reflectivity is denoted as R1, the preset second reflectivity is denoted as R2, the difference between the reflectivity of the sunshade and the preset first reflectivity is denoted as ΔR, and ΔR is set to R-R1.

[0109] Furthermore, the central control module determines three adjustment methods for the extension of the protective device 6 based on the difference between the reflectivity of the sunshade and a preset first reflectivity.

[0110] The first length adjustment method is that the central control module adjusts the extension of the protection device 6 to a preset length under the condition of a preset first reflectivity difference;

[0111] The second length adjustment method is that the central control module adjusts the elongation of the protection device 6 to the first length using a preset first length adjustment coefficient under a preset second reflectivity difference condition.

[0112] The third length adjustment method is that the central control module adjusts the elongation of the protection device 6 to the second length using a preset second length adjustment coefficient under a preset third reflectivity difference condition.

[0113] The preset first reflectivity difference condition is that the difference between the reflectivity of the sunshade and the preset first reflectivity is less than or equal to the preset first reflectivity difference; the preset second reflectivity difference condition is that the difference between the reflectivity of the sunshade and the preset first reflectivity is greater than the preset first reflectivity difference and less than or equal to the preset second reflectivity difference; the preset third reflectivity difference condition is that the difference between the reflectivity of the sunshade and the preset first reflectivity is greater than the preset second reflectivity difference; the preset first reflectivity difference is less than the preset second reflectivity difference, and the preset first length adjustment coefficient is less than the preset second length adjustment coefficient.

[0114] Specifically, the preset first reflectivity difference is denoted as △R1, the preset second reflectivity difference is denoted as △R2, the preset first length adjustment coefficient is denoted as δ1, and the preset second length adjustment coefficient is denoted as δ2, where △R1 < △R2, δ1 < δ2 < 1, the elongation of the protection device 6 is denoted as C, and the adjusted elongation of the protection device 6 is denoted as C'. C' is set to C × (1 + δg), where δg is the preset g-th length adjustment coefficient, and g = 1, 2.

[0115] The lighting control system of the present invention determines whether the aging degree of the sunshade is within the allowable range based on the reflectivity of the sunshade. By setting a preset first reflectivity difference condition, a preset second reflectivity difference condition, and a preset third reflectivity difference condition, the central control module adjusts the extension of the protection device 6 to reduce the impact of sunshade aging on the clarity of the sunshade.

[0116] Furthermore, the central control module employs two secondary determination methods to assess whether the static electricity level of the sunshade is within the allowable range based on the area of ​​contaminants on the mirror surface under a preset second reflectivity condition. Among these methods,

[0117] The first secondary determination method is that the central control module determines that the static electricity level of the sunshade mirror is within the allowable range under the preset first area condition;

[0118] The second secondary determination method is that the central control module determines that the static electricity level of the sunshade exceeds the allowable range under the preset second area condition, and adjusts the closing speed of the sunshade cover 8 to the corresponding speed by calculating the difference between the area of ​​the contaminant on the mirror surface and the preset area.

[0119] The second secondary determination method is that the central control module determines that the static electricity level of the sunshade mirror is within the allowable range under the preset second area condition;

[0120] The first preset area condition is that the area of ​​the contaminant on the mirror surface is less than or equal to a preset area; the second preset area condition is that the area of ​​the contaminant on the mirror surface is greater than a preset area.

[0121] Specifically, the area of ​​the contaminant on the mirror surface is denoted as M, the preset area is denoted as M0, the difference between the area of ​​the contaminant on the mirror surface and the preset area is denoted as △M, and △M is set to M-M0.

[0122] Furthermore, the central control module determines three adjustment methods for the closing speed of the sun visor cover 8 based on the difference between the area of ​​the contaminant on the mirror surface and the preset area.

[0123] The first speed adjustment method is that the central control module adjusts the closing speed of the sunshade cover 8 to a preset speed under the condition of a preset first area difference.

[0124] The second speed adjustment method is that the central control module adjusts the closing speed of the sunshade cover 8 to the first speed using a preset first speed adjustment coefficient under the condition of a preset second area difference.

[0125] The third speed adjustment method is that the central control module uses a preset second speed adjustment coefficient to adjust the closing speed of the sunshade cover 8 to the second speed under the preset third area difference condition;

[0126] Wherein, the preset first area difference condition is that the difference between the area of ​​the contaminant on the mirror surface and the preset area is less than or equal to the preset first area difference; the preset second area difference condition is that the difference between the area of ​​the contaminant on the mirror surface and the preset area is greater than the preset first area difference and less than or equal to the preset second area difference; the preset third area difference condition is that the difference between the area of ​​the contaminant on the mirror surface and the preset area is greater than the preset second area difference; the preset first area difference is less than the preset second area difference, and the preset first speed adjustment coefficient is less than the preset second speed adjustment coefficient.

[0127] Specifically, the first area difference is denoted as △M1, the second area difference is denoted as △M2, the first speed adjustment coefficient is denoted as θ1, the second speed adjustment coefficient is denoted as θ2, △M1 < △M2, 1 < θ1 < θ2, the closing speed of the sun visor cover 8 is denoted as V, and the closing speed of the adjusted sun visor cover 8 is denoted as V'. V' is set to V × (1 + θk) / 2, where θk is the preset k-th speed adjustment coefficient, and k = 1, 2.

[0128] The lighting control system of the present invention makes a secondary judgment on the static electricity level of the sunshade mirror based on the area of ​​the contaminant on the mirror surface. By setting a preset first area difference condition, a preset second area difference condition, and a preset third area difference condition, the central control module adjusts the closing speed of the sunshade mirror cover 8 by adjusting the area difference of the contaminant, thereby reducing the degree of contamination on the mirror surface 7 by reducing the closing time of the sunshade mirror cover 8.

[0129] Example 1

[0130] In this embodiment 1, a first area difference is preset and denoted as △M1, a second area difference is preset and denoted as △M2, a first speed adjustment coefficient is preset and denoted as θ1, and a second speed adjustment coefficient is preset and denoted as θ2, where △M1 = 10cm. 2 △M2=30cm 2 , θ1=1.2, θ2=1.4, V=0.1rad / s,

[0131] In Example 1, ΔM = 15cm was obtained. 2 The central control module determines that △M1 < △M ≤ △M2 and uses θ1 to adjust the closing speed of the sun visor cover. The adjusted closing speed of the sun visor cover is V' = 0.1 rad / s × (1 + 1.2) / 2 = 0.11 rad / s.

[0132] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A car sun visor lighting control system with a magnetic switch, characterized in that, include: The sunshade itself; The detection module, which is set on the sun visor body, includes a visual sensor for detecting the ambient brightness and the area of ​​contaminants on the mirror surface of the area where the sun visor is located, a gyroscope set on the vehicle body for detecting the angle formed between the vehicle body and the horizontal ground in real time, and a photoelectric sensor set above the sun visor body for detecting the reflectivity of the sun visor. An adjustment module, connected to the detection module, is used to adjust the posture and angle of the sun visor. The central control module is connected to the detection module and the adjustment module respectively. It is used to determine the corresponding operation mode of the sun visor according to the ambient brightness of the area where the sun visor is located, and to adjust the angle of the sun visor to the corresponding angle according to the real-time angle formed between the car body and the horizontal ground. It is also used to adjust the extension of the protective device set at the bottom of the sun visor to the corresponding extension according to the reflectivity of the sun visor, and to adjust the closing speed of the sun visor cover to the corresponding speed according to the area of ​​the contaminants on the mirror surface detected by the vision sensor. The mirror cover contains a magnet for controlling the opening and closing of the lighting circuit.

2. The automotive sun visor lighting control system with magnetic switch according to claim 1, characterized in that, The central control module determines two adjustment modes for the operation of the sun shade based on the ambient brightness. The first adjustment method is that the central control module adjusts the operation mode of the sunshade to the first operation mode under the preset first brightness condition; The second adjustment method is that the central control module adjusts the operation mode of the sunshade to the second operation mode under the preset second brightness condition; In the first operating mode, the brightness of the current sunshade is determined by the brightness at the end of the previous opening cycle of the sunshade and the brightness of the environment where the sunshade is located. In the second operating mode, the central control module determines the corresponding posture of the sunshade according to the horizontal incident angle of sunlight, and the corresponding posture includes a first posture and a second posture. The preset first brightness condition is that the ambient brightness of the sunshade is greater than the preset first brightness and less than or equal to the preset second brightness; the preset second brightness condition is that the ambient brightness of the sunshade is greater than the preset second brightness; and the preset first brightness is less than the preset second brightness.

3. The automotive sun visor lighting control system with magnetic switch according to claim 2, characterized in that, The central control module, under a preset first brightness condition, determines three methods for adjusting the brightness of the sun visor based on the difference between the ambient brightness and the preset first brightness. The current brightness of the sun visor is the brightness at the end of the previous activation cycle. The first brightness adjustment method is that the central control module adjusts the brightness of the sunshade to the first brightness using a preset second brightness adjustment coefficient under a preset first brightness difference condition. The second brightness adjustment method is that the central control module adjusts the brightness of the sunshade to the second brightness using a preset first brightness adjustment coefficient under a preset second brightness difference condition. The central control module is also provided with a third method for adjusting the brightness of the sun visor, which is to adjust the brightness of the sun visor to the brightness at the end of the previous opening cycle under a preset third brightness difference condition. The preset first brightness difference condition is that the difference between the ambient brightness of the sunshade and the preset brightness is greater than the preset first brightness difference and less than or equal to the preset second brightness difference; the preset second brightness difference condition is that the difference between the ambient brightness of the sunshade and the preset brightness is greater than the preset second brightness difference; the preset first brightness difference is less than the preset second brightness difference, and the preset first brightness adjustment coefficient is less than the preset second brightness adjustment coefficient.

4. The automotive sun visor lighting control system with magnetic switch according to claim 3, characterized in that, The central control module determines two adjustment methods for the sunshade's posture based on the horizontal incident angle of sunlight under a preset second brightness condition. Among these methods... The first posture adjustment method is that the central control module adjusts the posture of the sunshade to the first posture under the preset first angle condition; The second posture adjustment method is that the central control module adjusts the posture of the sunshade to the second posture under the preset second angle condition; The preset first angle condition is that the horizontal incident angle of sunlight is less than or equal to a preset angle; the preset second angle condition is that the horizontal incident angle of sunlight is greater than a preset angle; the central control module has a first posture and a second posture, the first posture is that the sun visor is parallel to the windshield of the car, and the second posture is that the sun visor is perpendicular to the windshield of the car.

5. The automotive sun visor lighting control system with magnetic switch according to claim 4, characterized in that, The central control module determines whether the vehicle's driving slope exceeds the allowable range based on two methods, namely, the angle formed in real time between the vehicle body and the horizontal ground. The first determination method is that the central control module determines that the vehicle's driving slope is within the allowable range under the preset first driving angle condition; The second determination method is that the central control module determines that the vehicle's driving slope exceeds the allowable range under the preset second driving angle condition, and adjusts the sun visor angle to the corresponding angle by calculating the difference between the angle formed by the vehicle body and the horizontal ground in real time and the preset driving angle. The first preset driving angle condition is that the angle formed between the vehicle body and the horizontal ground in real time is less than or equal to the preset driving angle; the second preset driving angle condition is that the angle formed between the vehicle body and the horizontal ground in real time is greater than the preset driving angle.

6. The automotive sun visor lighting control system with magnetic switch according to claim 5, characterized in that, The central control module determines three adjustment methods for the sun visor angle based on the difference between the real-time angle formed by the car body and the horizontal ground and the preset driving angle. The first angle adjustment method is that the central control module adjusts the sun visor angle to a preset sun visor angle under a preset first driving angle difference condition; The second angle adjustment method is that the central control module adjusts the sun visor angle to the first angle using a preset first angle adjustment coefficient under the condition of a preset second driving angle difference. The third angle adjustment method is that the central control module adjusts the sun visor angle to the second angle using a preset second angle adjustment coefficient under the preset third driving angle difference condition; The preset first driving angle difference condition is that the difference between the real-time angle formed by the vehicle body and the horizontal ground and the preset driving angle is less than or equal to the preset first driving angle difference; the preset second driving angle difference condition is that the difference between the real-time angle formed by the vehicle body and the horizontal ground and the preset driving angle is greater than the preset first driving angle difference and less than or equal to the preset second driving angle difference; the preset third driving angle difference condition is that the difference between the real-time angle formed by the vehicle body and the horizontal ground and the preset driving angle is greater than the preset second driving angle difference; the preset first driving angle difference is less than the preset second driving angle difference; and the preset first angle adjustment coefficient is less than the preset second angle adjustment coefficient.

7. The automotive sun visor lighting control system with magnetic switch according to claim 6, characterized in that, The central control module uses three methods to determine whether the aging degree of the sun shade exceeds the allowable range based on the reflectivity of the sun shade. The first method for determining the degree of aging is as follows: the central control module determines that the degree of aging of the sunshade exceeds the allowable range under the preset first reflectivity condition, and adjusts the extension of the protection device to the corresponding extension by calculating the difference between the reflectivity of the sunshade and the preset first reflectivity. The second method for determining the degree of aging is that the central control module determines that the degree of aging of the sunshade exceeds the allowable range under the preset second reflectivity condition, initially determines that the static electricity level of the sunshade exceeds the allowable range, and then makes a secondary determination of the static electricity level of the sunshade by the area of ​​contaminants on the mirror surface. The third method of determination is that the central control module determines that the aging degree of the sunshade is within the allowable range under the preset third reflectivity condition. Wherein, the preset first reflectivity condition is that the reflectivity of the mirror is less than or equal to the preset first reflectivity; the preset second reflectivity condition is that the reflectivity of the mirror is greater than the preset first reflectivity and less than or equal to the preset second reflectivity; the preset third reflectivity condition is that the reflectivity of the mirror is greater than the preset second reflectivity; and the preset first reflectivity is less than the preset second reflectivity.

8. The automotive sun visor lighting control system with magnetic switch according to claim 7, characterized in that, The central control module determines three adjustment methods for the extension of the protective device based on the difference between the reflectivity of the sunshade and a preset first reflectivity. The first length adjustment method is that the central control module adjusts the extension of the protection device to a preset length under a preset first reflectivity difference condition; The second length adjustment method is that the central control module adjusts the elongation of the protection device to the first length using a preset first length adjustment coefficient under a preset second reflectivity difference condition. The third length adjustment method is that the central control module adjusts the elongation of the protection device to the second length using a preset second length adjustment coefficient under a preset third reflectivity difference condition. The preset first reflectivity difference condition is that the difference between the reflectivity of the sunshade and the preset first reflectivity is less than or equal to the preset first reflectivity difference; the preset second reflectivity difference condition is that the difference between the reflectivity of the sunshade and the preset first reflectivity is greater than the preset first reflectivity difference and less than or equal to the preset second reflectivity difference; the preset third reflectivity difference condition is that the difference between the reflectivity of the sunshade and the preset first reflectivity is greater than the preset second reflectivity difference; the preset first reflectivity difference is less than the preset second reflectivity difference, and the preset first length adjustment coefficient is less than the preset second length adjustment coefficient.

9. The automotive sun visor lighting control system with magnetic switch according to claim 8, characterized in that, The central control module employs two secondary determination methods to assess whether the static electricity level of the sunshade is within the allowable range based on the area of ​​contaminants on the mirror surface under a preset second reflectivity condition. Among these methods... The first secondary determination method is that the central control module determines that the static electricity level of the sunshade mirror is within the allowable range under the preset first area condition; The second secondary determination method is that the central control module determines that the static electricity level of the sunshade exceeds the allowable range under the preset second area condition, and adjusts the closing speed of the sunshade cover to the corresponding speed by calculating the difference between the area of ​​the contaminant on the mirror surface and the preset area. The first preset area condition is that the area of ​​the contaminant on the mirror surface is less than or equal to a preset area; the second preset area condition is that the area of ​​the contaminant on the mirror surface is greater than a preset area.

10. The automotive sun visor lighting control system with magnetic switch according to claim 9, characterized in that, The central control module determines three adjustment methods for the closing speed of the sun shade lens cover based on the difference between the area of ​​the contaminant on the mirror surface and the preset area. The first speed adjustment method is that the central control module adjusts the closing speed of the sunshade lens cover to a preset speed under the condition of a preset first area difference. The second speed adjustment method is that the central control module adjusts the closing speed of the sunshade cover to the first speed using a preset first speed adjustment coefficient under the condition of a preset second area difference. The third speed adjustment method is that the central control module adjusts the closing speed of the sunshade cover to the second speed using a preset second speed adjustment coefficient under the preset third area difference condition; Wherein, the preset first area difference condition is that the difference between the area of ​​the contaminant on the mirror surface and the preset area is less than or equal to the preset first area difference; the preset second area difference condition is that the difference between the area of ​​the contaminant on the mirror surface and the preset area is greater than the preset first area difference and less than or equal to the preset second area difference; the preset third area difference condition is that the difference between the area of ​​the contaminant on the mirror surface and the preset area is greater than the preset second area difference; the preset first area difference is less than the preset second area difference, and the preset first speed adjustment coefficient is less than the preset second speed adjustment coefficient.

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