Vehicle and lamplight cut-off line adjusting method and lamplight cut-off line adjusting device thereof

Abstract

The invention discloses a vehicle and a lamplight cut-off line adjusting method and a lamplight cut-off line adjusting device thereof, the vehicle comprises a plurality of LED lamps, the LED lamps are distributed in an array mode to form vehicle headlamps, and the method comprises the steps that the vehicle body posture angle variation of the vehicle is obtained; determining a target adjustment height and an adjustment direction of a light cut-off line based on the vehicle body attitude angle variation; and controlling the plurality of LED lamps to be turned on or turned off based on the target adjustment height and the adjustment direction and the illumination parameter of each LED lamp so as to adjust the light cut-off line. Therefore, according to the method, the multiple LED lamps are controlled to be turned on or turned off based on the vehicle body posture angle variable quantity of the vehicle, so that the lamplight cut-off line is adjusted, the illumination effect and the driving safety are improved, and meanwhile, compared with the technical scheme that a motor is adopted in the related technology, the application cost is greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of light adjustment, and in particular to a method for adjusting a light cut-off line of a vehicle, a device for adjusting a light cut-off line of a vehicle, and a vehicle. Background Art

[0002] With the rapid development of the automobile industry, drivers have higher and higher requirements for safety. As a part of active safety, the role of lights is particularly important. The accuracy of the cut-off line position of the low beam is one of them. Especially when the vehicle is driving uphill or downhill, the body posture angle changes greatly. Under the condition of a fixed cut-off line, the lighting effect is poor, affecting the driver's safety.

[0003] In the related art, the angle of the headlights is adjusted by adding a motor and a matching motion mechanism, which increases the cost, slows the adjustment speed and has a poor effect. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the first purpose of the present invention is to propose a method for adjusting the light cutoff line of a vehicle, which controls the lighting or extinguishing of multiple LED lights based on the change in the vehicle body posture angle, thereby adjusting the light cutoff line, improving the lighting effect and driving safety, and at the same time, compared with the technical solution of using a motor in the related art, it greatly reduces the application cost, improves the cutoff line adjustment speed, and ensures the adjustment effect.

[0005] A second object of the present invention is to provide a vehicle light cut-off line adjustment device.

[0006] A third object of the present invention is to provide a vehicle.

[0007] To achieve the above-mentioned purpose, an embodiment of the first aspect of the present invention proposes a method for adjusting the light cutoff line of a vehicle, wherein the vehicle includes multiple LED lights, and the multiple LED lights are distributed in an array to form a vehicle headlight. The method for adjusting the light cutoff line of the vehicle includes: obtaining a change in the vehicle body posture angle; determining a target adjustment height and adjustment direction of the light cutoff line based on the change in the vehicle body posture angle; and controlling the multiple LED lights to light up or turn off based on the target adjustment height and adjustment direction and the lighting parameters of each LED lamp to adjust the light cutoff line.

[0008] According to the vehicle light cutoff adjustment method of the embodiment of the present invention, the vehicle includes a plurality of LED lamps, and the plurality of LED lamps are arranged in an array to form a vehicle headlamp. The method first obtains the vehicle body posture angle change, and determines the target adjustment height and adjustment direction of the light cutoff based on the vehicle body posture angle change, and controls the plurality of LED lamps to light up or extinguish based on the target adjustment height and adjustment direction and the lighting parameters of each LED lamp, so as to adjust the light cutoff. Thus, the method controls the plurality of LED lamps to light up or extinguish based on the vehicle body posture angle change, thereby adjusting the light cutoff, improving the lighting effect and driving safety, and at the same time, compared with the technical solution using a motor in the related art, the application cost is greatly reduced, the cutoff adjustment speed is improved, and the adjustment effect is guaranteed.

[0009] In addition, the vehicle light cut-off line adjustment method according to the above embodiment of the present invention may also have the following additional technical features:

[0010] According to one embodiment of the present invention, the adjustment direction of the light cut-off line is determined based on the change in the vehicle body posture angle, including: when the change in the vehicle body posture angle is greater than a preset threshold, determining the adjustment direction of the light cut-off line is downward adjustment; when the change in the vehicle body posture angle is less than the preset threshold, determining the adjustment direction of the light cut-off line is upward adjustment.

[0011] According to one embodiment of the present invention, determining a target adjustment height of a light cutoff line based on a vehicle body posture angle change includes: acquiring a preset relationship based on the vehicle body posture angle change; determining a target adjustment height of a light cutoff line based on the preset relationship, wherein the preset relationship is used to characterize the relationship between the vehicle body posture angle change, the headlight installation height and the target adjustment height.

[0012] According to one embodiment of the present invention, a plurality of LED lamps are arranged in a matrix, and the lighting parameters include a lighting height. Based on a target adjustment height and an adjustment direction and the lighting parameters of each LED lamp, the plurality of LED lamps are controlled to be lit or extinguished, including: obtaining a ratio between the target adjustment height and the lighting height of each LED lamp to obtain a target number of adjustment rows; and controlling the plurality of LED lamps to be lit or extinguished based on the adjustment direction and the target number of adjustment rows.

[0013] According to one embodiment of the present invention, the method for adjusting the light cutoff line of a vehicle also includes: obtaining the lighting angle of each LED lamp in a direction perpendicular to the horizontal plane; determining the lighting height of each LED lamp based on the lighting angle of each LED lamp and the target screen distance, wherein the target screen distance is determined based on the installation height of the vehicle lamp.

[0014] According to one embodiment of the present invention, a plurality of LED lights are arranged in a matrix, and the lighting parameters include a lighting angle along a direction perpendicular to a horizontal plane. Based on a target adjustment height and an adjustment direction and the lighting parameters of each LED lamp, the plurality of LED lamps are controlled to be lit or extinguished, including: determining a target adjustment angle based on a target adjustment height and a target screen distance, wherein the target screen distance is determined based on a lamp installation height; obtaining a ratio between the target adjustment angle and the lighting angle of each LED lamp along a direction perpendicular to a horizontal plane to obtain a target adjustment row number; and controlling the plurality of LED lamps to be lit or extinguished based on the adjustment direction and the target adjustment row number.

[0015] According to one embodiment of the present invention, multiple LED lights are arranged in a matrix, and the method for adjusting the light cutoff line of a vehicle also includes: determining the total lighting angle of the vehicle headlights on the target screen along a direction perpendicular to the horizontal plane and the number of rows of the multiple LED lights arranged along the direction perpendicular to the horizontal plane; obtaining the ratio between the total lighting angle and the number of arrangement rows to obtain the lighting angle of each LED light along the direction perpendicular to the horizontal plane.

[0016] According to an embodiment of the present invention, the method for adjusting the light cut-off line of a vehicle further includes: acquiring the current speed of the vehicle; and determining the adjustment speed of the light cut-off line based on the current speed.

[0017] To achieve the above-mentioned purpose, the second embodiment of the present invention proposes a vehicle light cut-off line adjustment device, wherein the vehicle includes a plurality of LED lights, and the plurality of LED lights are distributed in an array to form a vehicle headlight. The vehicle light cut-off line adjustment device includes: an acquisition module, used to acquire the vehicle body posture angle change; a determination module, used to determine the target adjustment height and adjustment direction of the light cut-off line based on the vehicle body posture angle change; an adjustment module, used to control the plurality of LED lights to light up or off based on the target adjustment height and adjustment direction and the lighting parameters of each LED lamp, so as to adjust the light cut-off line.

[0018] According to the vehicle light cut-off adjustment device of the embodiment of the present invention, the vehicle includes a plurality of LED lamps, and the plurality of LED lamps are arranged in an array to form a vehicle headlamp. The light cut-off adjustment device obtains the vehicle body posture angle change amount through an acquisition module, determines the target adjustment height and adjustment direction of the light cut-off line based on the body posture angle change amount through a determination module, and controls the plurality of LED lamps to light up or extinguish based on the target adjustment height and adjustment direction and the lighting parameters of each LED lamp to adjust the light cut-off line. Thus, the device controls the plurality of LED lamps to light up or extinguish based on the vehicle body posture angle change amount, thereby adjusting the light cut-off line, improving the lighting effect and driving safety, and at the same time, compared with the technical solution using a motor in the related art, it greatly reduces the application cost, improves the cut-off line adjustment speed, and ensures the adjustment effect.

[0019] To achieve the above-mentioned purpose, a second aspect of the present invention proposes a vehicle, including a memory, a processor, and a vehicle light cut-off line adjustment program stored in the memory and executable on the processor. When the processor executes the vehicle light cut-off line adjustment program, the above-mentioned vehicle light cut-off line adjustment method is implemented.

[0020] According to the vehicle of the embodiment of the present invention, when the processor executes the vehicle's light cut-off line adjustment program, the above-mentioned vehicle light cut-off line adjustment method is implemented. Based on the above-mentioned vehicle light cut-off line adjustment method, adaptive adjustment of the light cut-off line is achieved, thereby improving the lighting effect and driving safety. At the same time, compared with the technical solution of using motors in related technologies, the application cost is greatly reduced.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a flow chart of a method for adjusting a vehicle light cut-off line according to an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of lighting a high beam lamp according to a specific embodiment of the present invention;

[0024] Figure 3 is a schematic diagram of a scene under flat road conditions according to a specific embodiment of the present invention;

[0025] Figure 4 It is a schematic diagram of lighting the low beam lamp under flat road conditions according to a specific embodiment of the present invention;

[0026] Figure 5 A schematic diagram of a scene under uphill road conditions according to a specific embodiment of the present invention;

[0027] Figure 6 A schematic diagram of lighting a low beam lamp under an uphill road condition according to a specific embodiment of the present invention;

[0028] Figure 7 A schematic diagram of a scene under downhill road conditions according to a specific embodiment of the present invention;

[0029] Figure 8 A schematic diagram of lighting a low beam lamp under downhill road conditions according to a specific embodiment of the present invention;

[0030] Fig. 9 is a schematic diagram of the shape of a low beam cut-off line according to a specific embodiment of the present invention;

[0031] Fig.10is a schematic diagram of the shape of a low beam cut-off line according to another specific embodiment of the present invention;

[0032] Fig.11 For Figure 2 A schematic diagram of lighting parameters of each LED lamp under the embodiment;

[0033] Fig.12 is a flow chart of a method for adjusting a vehicle light cut-off line according to a specific embodiment of the present invention;

[0034] Fig.13 A schematic diagram of the connection of a vehicle light cut-off line adjustment device according to an embodiment of the present invention;

[0035] Fig.14 FIG. 4 is a block diagram of a vehicle according to an embodiment of the present invention. DETAILED DESCRIPTION

[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0037] The following describes a method for adjusting a light cut-off line of a vehicle, a device for adjusting a light cut-off line of a vehicle, and a vehicle according to an embodiment of the present invention with reference to the accompanying drawings.

[0038] Figure 1 The figure is a flow chart of a method for adjusting a vehicle light cut-off line according to an embodiment of the present invention.

[0039] In one embodiment of the present invention, the vehicle comprises a plurality of LED lamps, and the plurality of LED lamp arrays are distributed to form a vehicle headlamp.

[0040] Specifically, if Figure 2 As shown, the FOV (Field of View) formed by the vehicle headlights is set to ±12° horizontally and ±3° vertically, with a vertical and horizontal ratio of a:b=1:4, and HH and VV are respectively in the middle position, which can be adjusted according to the actual loading requirements. Figure 2 In the example, each grid corresponds to an LED light, and each LED light can be individually controlled to light up and turn off. Assuming that there are 80 rows of LED lights in the height direction and 320 columns of LED lights in the width direction. It can be understood that except for Figure 2 In the matrix arrangement shown, the LED lights can be arranged in an array based on actual applications. In addition, the arrangement angles of multiple LED lights can also be set according to actual conditions, without any specific restrictions.

[0041] like Figure 1As shown, the method for adjusting the light cut-off line of a vehicle according to the embodiment of the present invention may include:

[0042] S1, obtaining the vehicle body posture angle change;

[0043] S2, determining the target adjustment height and adjustment direction of the light cut-off line based on the change in the vehicle body posture angle;

[0044] S3, based on the target adjustment height and adjustment direction and the lighting parameters of each LED lamp, controlling the plurality of LED lamps to light up or turn off to adjust the light cutoff line.

[0045] Specifically, the body posture angle is obtained through the body sensor, and the body posture angle change is calculated according to the body posture angle obtained in real time. For example, the body posture angle of the vehicle is 0° when the vehicle is traveling on a flat road, the body posture angle is less than 0° when the vehicle is traveling on a downhill road, and the body posture angle is greater than 0° when the vehicle is traveling on a downhill road. When the vehicle enters an uphill road condition from a flat road condition, the body posture angle change is greater than zero; when the vehicle enters a downhill road condition from a flat road condition, the body posture angle change is less than zero.

[0046] The vehicle posture change is determined according to the change in the body posture angle, so as to adjust the light cut-off line to meet the lighting needs. The light cut-off line can be the high beam cut-off line or the low beam cut-off line. Taking the light cut-off line as the low beam cut-off line as an example, on a flat road condition (such as Figure 3 As shown in FIG. 1 , the lighting of multiple LED lights is as follows: Figure 4 As shown; when the vehicle enters an uphill road condition (such as Figure 5 As shown), if you still follow Figure 4 As shown in the figure, multiple LED lights are turned on, and the original cut-off line of the low beam is maintained. The lighting angle formed at this time is "adjusting the front lighting angle", which causes the irradiation distance to be too far. Therefore, the cut-off line of the low beam needs to be lowered (such as Figure 6 As shown in the figure), the rear lighting angle is adjusted to ensure the lighting effect; when the vehicle enters a downhill road (such as Figure 7 As shown), if you still follow Figure 4 As shown in the figure, multiple LED lights are lit, and the original cut-off line of the low beam is maintained. The lighting angle formed at this time is "adjusting the front lighting angle", which causes the irradiation distance to be too close, which is not conducive to driving safety. Therefore, the cut-off line of the low beam needs to be raised (such as Figure 8 As shown in the figure), the "rear lighting angle" is adjusted to ensure the lighting effect and driving safety. When the light cut-off line is the light cut-off line of the high beam, Figure 2 This is the lighting effect of the LED light on a flat road. Figure 2In addition to the multiple LED lights shown, additional LED lights are also provided along the VV direction. Figure 2 The multiple LED lights shown are lit. When the road is in uphill or downhill conditions, additional LED lights are used to cooperate in adjusting the light cut-off line of the high beam to meet the lighting needs. For details, please refer to the adjustment process of the low beam.

[0047] The preset relationship between the change in the body posture angle and the target adjustment height and adjustment direction of the light cutoff line can be preset. For example, when the change in the body posture angle is positive, the adjustment direction is determined to be downward adjustment; when the change in the body posture angle is negative, the adjustment direction is determined to be upward adjustment; the target adjustment height is determined according to the absolute value of the change in the body posture angle and the preset mapping table. Then, according to the determined target adjustment height and adjustment direction of the light cutoff line and the lighting parameters corresponding to each LED lamp, multiple LED lamps are turned on or off to adjust the position of the light cutoff line. Among them, the lighting parameters can be lighting angle, lighting height, lighting range, etc., to achieve precise control of the light cutoff line.

[0048] This embodiment controls the lighting or extinguishing of multiple LED lights based on the change in the vehicle body posture angle, outputs corresponding lighting light patterns, and realizes the up and down movement of the light cut-off line to ensure the lighting effect and driving safety.

[0049] The following takes the light cut-off line as the light cut-off line of the low beam as an example, combined with the attached Figure 3-11 , a method for adjusting the light cut-off line of the vehicle is described in detail.

[0050] In one embodiment of the present invention, determining the adjustment direction of the light cutoff line based on the change in the body posture angle includes: when the change in the body posture angle is greater than a preset threshold, determining the adjustment direction of the light cutoff line is downward adjustment; when the change in the body posture angle is less than the preset threshold, determining the adjustment direction of the light cutoff line is upward adjustment. The preset threshold can be set according to actual conditions.

[0051] Specifically, the body posture angle of the vehicle when traveling on a flat road is 0°, the body posture angle is less than 0° when the vehicle is traveling on a downhill road, and the body posture angle is greater than 0° when the vehicle is traveling on a downhill road. Taking the preset threshold value of 0° as an example, the current body posture angle is γ1°, and the body posture angle obtained at the previous moment is γ0°. The body posture angle change △γ°=γ1°-γ0° is calculated. If △γ° is greater than 0°, it is determined that the light cut-off line needs to be adjusted downward; if △γ° is less than 0°, it is determined that the light cut-off line needs to be adjusted upward; if △γ° is equal to 0°, the light cut-off line does not need to be adjusted.

[0052] In one embodiment of the present invention, a target adjustment height of a light cutoff line is determined based on a vehicle body posture angle change, comprising: obtaining a preset relationship according to the vehicle body posture angle change; determining the target adjustment height of the light cutoff line according to the preset relationship, wherein the preset relationship is used to characterize the relationship between the vehicle body posture angle change, the headlight installation height and the target adjustment height.

[0053] That is to say, the relationship between the change in the body posture angle, the headlight installation height and the target adjustment height can be pre-calibrated based on the test, thereby forming a preset relationship. The preset relationship can be a mapping table or a calculation formula, and is not specifically limited. Taking the preset relationship as a preset mapping table as an example, after determining the change in the body posture angle, the target adjustment height is obtained by looking up the table.

[0054] In one embodiment of the present invention, a plurality of LED lamps are arranged in a matrix, and the lighting parameters include a lighting height. Based on a target adjustment height and an adjustment direction and the lighting parameters of each LED lamp, the plurality of LED lamps are controlled to be lit or extinguished, including: obtaining a ratio between the target adjustment height and the lighting height of each LED lamp to obtain a target number of adjustment rows; and controlling the plurality of LED lamps to be lit or extinguished based on the adjustment direction and the target number of adjustment rows.

[0055] Specifically, the shape of the low beam cut-off line can be Fig. 9 The H3 shape shown can also be Fig.10 The H4 shape shown is not specifically limited.

[0056] After determining the adjustment direction and target adjustment height h according to the change in the vehicle body posture angle, obtain the illuminated height x of each LED lamp and calculate the target adjustment row number L = h / x. Assuming that the target adjustment row number L is 8 rows, on a flat road, the lighting of the LED lamp is as follows: Figure 4 As shown; if the vehicle is on an uphill road, the body angle change is greater than 0°, and the adjustment direction is determined to be downward adjustment, then the LED light will be turned off for 8 rows. The specific lighting effect is as follows Figure 6 As shown; if the vehicle is on a downhill road, the body angle change is less than 0°, and the adjustment direction is determined to be upward adjustment, the LED light will continue to light up 8 rows, specifically as follows Figure 8 shown.

[0057] In one embodiment of the present invention, the method for adjusting the light cutoff line of a vehicle further includes: obtaining the lighting angle of each LED lamp in a direction perpendicular to the horizontal plane; determining the lighting height of each LED lamp based on the lighting angle of each LED lamp and the target screen distance, wherein the target screen distance is determined based on the installation height of the vehicle lamp.

[0058] For example, if Fig.11As shown, assuming that the target screen distance is 25m and the lighting angle of each LED lamp is α, the calculation formula is 0.5x=tan(0.5*α)*25*1000, and the lighting height of each LED lamp is x=32.7mm. The target screen distance is determined based on the installation height of the headlight to meet the user's comfort.

[0059] In another embodiment of the present invention, multiple LED lights are arranged in a matrix, and the lighting parameters include a lighting angle along a direction perpendicular to a horizontal plane. Based on a target adjustment height and an adjustment direction and the lighting parameters of each LED lamp, the multiple LED lamps are controlled to be lit or extinguished, including: determining a target adjustment angle based on a target adjustment height and a target screen distance, wherein the target screen distance is determined based on a lamp installation height; obtaining a ratio between the target adjustment angle and the lighting angle of each LED lamp along a direction perpendicular to a horizontal plane to obtain a target adjustment row number; and controlling the multiple LED lamps to be lit or extinguished based on the adjustment direction and the target adjustment row number.

[0060] That is to say, after determining the adjustment direction and target adjustment height h according to the change in the body posture angle, determine the target adjustment angle β according to the target adjustment height h and the target screen distance. Assuming that the target adjustment height h is 250mm and the target screen distance is 25m, establish the calculation formula tanβ*25*1000=250, and it can be deduced that β is approximately equal to 0.57°. Determine the lighting angle α of each LED lamp, calculate the target adjustment row number L=β / α, and light up or extinguish multiple LED lamps according to the adjustment direction and the target adjustment row number. For example, when the adjustment direction is upward adjustment, multiple LED lamps continue to light up more than the target adjustment row number; when the adjustment direction is downward adjustment, multiple LED lamps continue to extinguish more than the target adjustment row number.

[0061] In one embodiment of the present invention, multiple LED lights are arranged in a matrix, and the method for adjusting the light cutoff line of a vehicle also includes: determining the total lighting angle of the vehicle headlights on the target screen along a direction perpendicular to the horizontal plane and the number of rows of the multiple LED lights arranged along the direction perpendicular to the horizontal plane; obtaining the ratio between the total lighting angle and the number of arrangement rows to obtain the lighting angle of each LED light along the direction perpendicular to the horizontal plane.

[0062] For example, Figure 3 and Fig.11For example, the FOV formed by the vehicle headlights on the target screen is set to ±12° horizontally, ±3° vertically, and the vertical and horizontal ratio is a:b=1:4. There are 80 rows of LED lights in the height direction and 320 columns of LED lights in the width direction. Each grid corresponds to an LED light, and the corresponding illumination angle of each LED light is α=6 / 80=0.075°. When converted to a 25m screen, the illumination range is about 32*32mm. Among them, the 25m screen is the target screen, and the corresponding target screen distance is the relative distance between the target screen and the vehicle is 25m.

[0063] For example, the target adjustment angle β is determined to be 0.57°, the lighting angle of each LED lamp α=0.075°, β / α≈8, and it can be concluded that the adjustment of 8 rows of LED lamps can meet the β angle requirement. The initial LED lamp is lit as follows Figure 4 As shown in the figure, if the body posture angle change is greater than 0°, the light cut-off line needs to be adjusted downward for correction, and the LED light is turned off 8 lines downward. The specific lighting effect is as follows Figure 6 As shown; if the body posture angle change is less than 0°, the light cut-off line needs to be adjusted upwards, and the LED lights continue to light up 8 rows, as shown in the specific lighting. Figure 8 shown.

[0064] In one embodiment of the present invention, the method for adjusting the light cut-off line of a vehicle further includes: acquiring the current speed of the vehicle; and determining the adjustment speed of the light cut-off line based on the current speed.

[0065] That is to say, a faster adjustment speed is used when the vehicle speed is faster, and a slower adjustment speed is used when the vehicle speed is slower, so as to match the adjustment speed of the light cut-off line with the vehicle speed, thereby improving the lighting effect and driving safety.

[0066] As a specific embodiment of the present invention, Fig.12 As shown, the method for adjusting the light cut-off line of the vehicle may include the following steps:

[0067] S101, obtaining a change in the vehicle body posture angle.

[0068] S102, determine whether the change in the body posture angle is greater than 0°. If so, execute step S103; if not, execute step S104.

[0069] S103, determining that the adjustment direction of the light cut-off line is downward adjustment. Execute step S107.

[0070] S104, determining whether the change in the body posture angle is less than 0°. If so, executing step S105; if not, executing step S106.

[0071] S105, determining that the adjustment direction of the light cut-off line is upward adjustment. Execute step S107.

[0072] S106, maintaining the current state of the light cutoff line.

[0073] S107: determining a target adjustment height of the light cut-off line based on the change in the vehicle body posture angle.

[0074] S108, obtaining the lighting angle of each LED lamp along a direction perpendicular to the horizontal plane.

[0075] S109, determining the lighting height of each LED lamp based on the lighting angle of each LED lamp and the target screen distance.

[0076] S110, calculating the target adjustment row number = target adjustment height / lighting height of each LED lamp.

[0077] S111, controlling a plurality of LED lights to light up or turn off based on the adjustment direction and the target number of adjustment rows.

[0078] In summary, according to the method for adjusting the light cutoff line of a vehicle of an embodiment of the present invention, the vehicle includes a plurality of LED lamps, and the plurality of LED lamps are distributed in an array to form a vehicle headlamp. The method first obtains the amount of change in the body posture angle of the vehicle, and determines the target adjustment height and adjustment direction of the light cutoff line based on the amount of change in the body posture angle, and controls the plurality of LED lamps to light up or extinguish based on the target adjustment height and adjustment direction and the lighting parameters of each LED lamp, so as to adjust the light cutoff line. Thus, the method controls the plurality of LED lamps to light up or extinguish based on the amount of change in the body posture angle of the vehicle, thereby adjusting the light cutoff line, improving the lighting effect and driving safety, and at the same time, compared with the technical solution of using a motor in the related art, it greatly reduces the application cost, improves the cutoff line adjustment speed, and ensures the adjustment effect.

[0079] Corresponding to the above-mentioned embodiment, the present invention further proposes a vehicle light cut-off line adjustment device.

[0080] According to one embodiment of the present invention, a vehicle includes a plurality of LED lamps, and the plurality of LED lamp arrays are distributed to form a vehicle headlamp.

[0081] like Fig.12 As shown, the vehicle light cut-off line adjustment device according to the embodiment of the present invention may include: an acquisition module 10 , a determination module 20 and an adjustment module 30 .

[0082] The acquisition module 10 is used to acquire the change in the body posture angle of the vehicle. The determination module 20 is used to determine the target adjustment height and adjustment direction of the light cutoff line based on the change in the body posture angle. The adjustment module 30 is used to control the lighting or extinguishing of multiple LED lights based on the target adjustment height and adjustment direction and the lighting parameters of each LED light to adjust the light cutoff line.

[0083] According to one embodiment of the present invention, the determination module 20 determines the adjustment direction of the light cut-off line based on the change in the vehicle body posture angle, including: when the change in the vehicle body posture angle is greater than a preset threshold, determining that the adjustment direction of the light cut-off line is downward adjustment; when the change in the vehicle body posture angle is less than the preset threshold, determining that the adjustment direction of the light cut-off line is upward adjustment.

[0084] According to one embodiment of the present invention, the determination module 20 determines the target adjustment height of the light cut-off line based on the change in the vehicle body posture angle, including: obtaining a preset relationship according to the change in the vehicle body posture angle; determining the target adjustment height of the light cut-off line according to the preset relationship, wherein the preset relationship is used to characterize the relationship between the change in the vehicle body posture angle, the headlight installation height and the target adjustment height.

[0085] According to one embodiment of the present invention, a plurality of LED lamps are arranged in a matrix, and the lighting parameters include a lighting height. The adjustment module 30 controls the lighting or extinguishing of the plurality of LED lamps based on the target adjustment height and the adjustment direction and the lighting parameters of each LED lamp, including: obtaining the ratio between the target adjustment height and the lighting height of each LED lamp to obtain the target number of adjustment rows; and controlling the lighting or extinguishing of the plurality of LED lamps based on the adjustment direction and the target number of adjustment rows.

[0086] According to one embodiment of the present invention, the adjustment module 30 is also used to: obtain the lighting angle of each LED lamp along a direction perpendicular to the horizontal plane; determine the lighting height of each LED lamp based on the lighting angle of each LED lamp and the target screen distance, wherein the target screen distance is determined based on the installation height of the vehicle lamp.

[0087] According to one embodiment of the present invention, a plurality of LED lamps are arranged in a matrix, and the lighting parameters include a lighting angle along a direction perpendicular to a horizontal plane. The adjustment module 30 controls the lighting or extinguishing of the plurality of LED lamps based on a target adjustment height and an adjustment direction and the lighting parameters of each LED lamp, including: determining a target adjustment angle based on a target adjustment height and a target screen distance, wherein the target screen distance is determined based on a lamp installation height; obtaining a ratio between the target adjustment angle and the lighting angle of each LED lamp along a direction perpendicular to a horizontal plane to obtain a target number of adjustment rows; and controlling the lighting or extinguishing of the plurality of LED lamps based on the adjustment direction and the target number of adjustment rows.

[0088] According to one embodiment of the present invention, multiple LED lights are arranged in a matrix, and the adjustment module 30 is also used to: determine the total lighting angle of the vehicle headlights on the target screen along a direction perpendicular to the horizontal plane and the number of rows of the multiple LED lights arranged along the direction perpendicular to the horizontal plane; obtain the ratio between the total lighting angle and the number of arrangement rows to obtain the lighting angle of each LED light along the direction perpendicular to the horizontal plane.

[0089] According to an embodiment of the present invention, the acquisition module 10 is further used to: acquire the current vehicle speed; the adjustment module 30 is further used to: determine the adjustment speed of the light cut-off line based on the current vehicle speed.

[0090] It should be noted that for details not disclosed in the vehicle light cut-off line adjustment device of the embodiment of the present invention, please refer to the details disclosed in the vehicle light cut-off line adjustment method of the above embodiment of the present invention, and the details will not be repeated here.

[0091] According to the vehicle light cut-off adjustment device of the embodiment of the present invention, the vehicle includes a plurality of LED lamps, and the plurality of LED lamps are arranged in an array to form a vehicle headlamp. The light cut-off adjustment device obtains the vehicle body posture angle change amount through an acquisition module, determines the target adjustment height and adjustment direction of the light cut-off line based on the body posture angle change amount through a determination module, and controls the plurality of LED lamps to light up or extinguish based on the target adjustment height and adjustment direction and the lighting parameters of each LED lamp to adjust the light cut-off line. Thus, the device controls the plurality of LED lamps to light up or extinguish based on the vehicle body posture angle change amount, thereby adjusting the light cut-off line, improving the lighting effect and driving safety, and at the same time, compared with the technical solution using a motor in the related art, it greatly reduces the application cost, improves the cut-off line adjustment speed, and ensures the adjustment effect.

[0092] Corresponding to the above embodiment, the present invention also provides a vehicle.

[0093] like Fig.14 As shown, the vehicle 100 of the embodiment of the present invention includes a storage 110, a processor 120, and a vehicle light cut-off line adjustment program stored in the storage 110 and executable on the processor 120. When the processor 120 executes the vehicle light cut-off line adjustment program, the above-mentioned vehicle light cut-off line adjustment method is implemented.

[0094] According to the vehicle of the embodiment of the present invention, when the processor executes the vehicle's light cut-off line adjustment program, the above-mentioned vehicle light cut-off line adjustment method is implemented. Based on the above-mentioned vehicle light cut-off line adjustment method, adaptive adjustment of the light cut-off line is achieved, thereby improving the lighting effect and driving safety. At the same time, compared with the technical solution of using motors in related technologies, the application cost is greatly reduced, the cut-off line adjustment speed is improved, and the adjustment effect is guaranteed.

[0095] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0096] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0097] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0098] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0099] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0100] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A method for adjusting the light cut-off line of a vehicle, characterized in that: The vehicle comprises a plurality of LED lamps, wherein the plurality of LED lamp arrays are distributed to form vehicle headlamps, and the method comprises: Obtaining a body posture angle change of the vehicle; Determining a target adjustment height and adjustment direction of the light cutoff line based on the vehicle body posture angle change; The plurality of LED lamps are controlled to light up or turn off based on the target adjustment height, the adjustment direction and the lighting parameter of each LED lamp, so as to adjust the light cut-off line.

2. The method for adjusting the vehicle light cut-off line according to claim 1, characterized in that: The step of determining the adjustment direction of the light cut-off line based on the vehicle body posture angle change includes: When the change in the vehicle body posture angle is greater than a preset threshold, determining that the adjustment direction of the light cut-off line is downward adjustment; When the vehicle body posture angle change is less than the preset threshold, it is determined that the adjustment direction of the light cut-off line is upward adjustment.

3. The method for adjusting the vehicle light cut-off line according to claim 2, characterized in that: Determining a target adjustment height of the light cut-off line based on the vehicle body posture angle change includes: Acquiring a preset relationship according to the amount of change in the vehicle body posture angle; The target adjustment height of the light cut-off line is determined according to the preset relationship, wherein the preset relationship is used to characterize the relationship between the vehicle body posture angle change, the headlight installation height and the target adjustment height.

4. The method for adjusting the vehicle light cut-off line according to claim 1, characterized in that: The plurality of LED lamps are arranged in a matrix, the lighting parameter includes a lighting height, and the controlling the plurality of LED lamps to light up or extinguish based on the target adjustment height and the adjustment direction and the lighting parameter of each LED lamp comprises: Obtaining a ratio between the target adjustment height and the lighting height of each LED lamp to obtain a target adjustment row number; The plurality of LED lamps are controlled to light up or turn off based on the adjustment direction and the target number of adjustment rows.

5. The method for adjusting the vehicle light cut-off line according to claim 4, characterized in that: The method further comprises: Obtaining the lighting angle of each LED lamp along a direction perpendicular to the horizontal plane; The lighting height of each LED lamp is determined based on the lighting angle of each LED lamp and a target screen distance, wherein the target screen distance is determined based on the mounting height of the vehicle lamp.

6. The method for adjusting the vehicle light cut-off line according to claim 1, characterized in that: The plurality of LED lamps are arranged in a matrix, the lighting parameter includes a lighting angle in a direction perpendicular to a horizontal plane, and the controlling the plurality of LED lamps to light up or turn off based on the target adjustment height and the adjustment direction and the lighting parameter of each LED lamp comprises: Determining a target adjustment angle based on the target adjustment height and the target screen distance, wherein the target screen distance is determined based on the installation height of the headlight; Obtaining a ratio between the target adjustment angle and the lighting angle of each LED lamp in a direction perpendicular to the horizontal plane, and obtaining a target adjustment row number; The plurality of LED lamps are controlled to light up or turn off based on the adjustment direction and the target number of adjustment rows.

7. The method for adjusting the vehicle light cut-off line according to claim 5 or 6, characterized in that: The plurality of LED lamps are arranged in a matrix, and the method further comprises: Determine the total illumination angle of the vehicle headlight on the target screen along a direction perpendicular to the horizontal plane and the number of rows of the plurality of LED lights arranged along a direction perpendicular to the horizontal plane; The ratio of the total lighting angle to the number of rows is obtained to obtain the lighting angle of each LED lamp along a direction perpendicular to the horizontal plane.

8. The method for adjusting the vehicle light cut-off line according to claim 1, characterized in that: The method further comprises: Obtaining the current speed of the vehicle; An adjustment speed of the light cut-off line is determined based on the current vehicle speed.

9. A vehicle light cut-off line adjustment device, characterized in that: The vehicle comprises a plurality of LED lamps, wherein the plurality of LED lamp arrays are distributed to form vehicle headlights, and the device comprises: An acquisition module, used for acquiring a body posture angle change of the vehicle; A determination module, configured to determine a target adjustment height and an adjustment direction of the light cutoff line based on the vehicle body posture angle change; An adjustment module is used to control the plurality of LED lamps to light up or turn off based on the target adjustment height and the adjustment direction and the lighting parameter of each LED lamp, so as to adjust the light cut-off line.

10. A vehicle, characterized in that: The invention comprises a memory, a processor and a vehicle light cut-off line adjustment program stored in the memory and executable on the processor. When the processor executes the vehicle light cut-off line adjustment program, the vehicle light cut-off line adjustment method according to any one of claims 1 to 7 is implemented.

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