Light system of vehicle, vehicle and light control method of vehicle

Abstract

The invention provides a lighting system of a vehicle, the vehicle and a lighting control method of the vehicle. The lighting system is controlled to emit a main light beam, a first auxiliary light beam and a second auxiliary light beam irradiating towards the front of the vehicle; the vertical plane where the optical axis of the main light beam is located is parallel to the vehicle body wheelbase direction of the vehicle. The first auxiliary light beam inclines upwards relative to the main light beam; the second auxiliary light beam inclines downwards relative to the main light beam; and the intensity of the first auxiliary light beam and the second auxiliary light beam is adjustable. In this way, on the basis that the road condition in front of the vehicle is illuminated through the main light beam, the first auxiliary light beam inclining upwards and the second auxiliary light beam inclining downwards are arranged, and illumination of areas with different heights is achieved. The overall irradiation range of the vehicle lamplight can be adjusted by adjusting the intensity of the first auxiliary light beam and the second auxiliary light beam, the fault risk caused by lamplight adjustment through frequent actions of a mechanical structure can be avoided, and the reliability of vehicle lamplight adjustment is improved.

Description

Technical Field

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

[0002] When a vehicle is driving, the headlights are used to illuminate the road ahead of the vehicle to ensure driving safety. In actual applications, when the vehicle load changes, the vehicle posture changes accordingly, and the head tilts up or down, causing the illumination range of the lights to shift, posing a safety hazard.

[0003] In order to adjust the illumination range of vehicle lights, the related art sets the vehicle's light module as a movable module, and controls the light emission angle by adjusting the light module up and down and left and right, thereby adjusting the light illumination range to counteract the deviation of the light illumination range caused by changes in vehicle posture. However, the adjustment process of vehicle lights is completely dependent on the mechanical structure to drive the light module to move repeatedly, and the risk of failure due to multiple movements of the mechanical structure is high. Summary of the invention

[0004] The present application provides a vehicle lighting system, a vehicle and a vehicle lighting control method to improve the reliability of the vehicle lighting adjustment process.

[0005] The present application provides a lighting system for a vehicle, the lighting system being used for controlling the emission of a main light beam, a first auxiliary light beam, and a second auxiliary light beam toward the front of the vehicle; wherein a vertical plane where an optical axis of the main light beam is located is parallel to a wheelbase direction of the vehicle; the first auxiliary light beam is tilted upward relative to the main light beam; the second auxiliary light beam is tilted downward relative to the main light beam; and the intensities of the first auxiliary light beam and the second auxiliary light beam are adjustable.

[0006] In some embodiments, the optical axes of the main light beam, the first auxiliary light beam and the second auxiliary light beam belong to the same vertical plane.

[0007] In some embodiments, a first angle between the main beam and the first auxiliary beam is less than or equal to 10 degrees; and / or a second angle between the main beam and the second auxiliary beam is less than or equal to 10 degrees.

[0008] In some embodiments, the lighting system includes: a main light source assembly, used to emit a main light beam; a first light source assembly, used to emit a first light beam whose optical axis is higher than the main light beam; a first refraction mechanism, arranged in the light beam emission direction of the first light source assembly, so that the first light beam tilts upward after being irradiated by the first refraction mechanism to form a first auxiliary light beam; a second light source assembly, used to emit a second light beam whose optical axis is lower than the main light beam; a second refraction mechanism, arranged in the light beam emission direction of the second light source assembly, so that the second light beam tilts downward after being irradiated by the second refraction mechanism to form a second auxiliary light beam.

[0009] In some embodiments, the lighting system also includes: a lens, which is arranged in the light beam emission direction of the main light source assembly, the first light source assembly and the second light source assembly; the lens includes an incident end close to the main light source assembly, the first light source assembly and the second light source assembly and an emission end away from the main light source assembly, the first light source assembly and the second light source assembly; the first refraction mechanism includes a first optical tooth, the first optical tooth is arranged at the incident end of the lens, and corresponds to the position of the first light source assembly, so that the first light beam tilts upward after being irradiated by the first optical tooth to form a first auxiliary light beam; the second refraction mechanism includes a second optical tooth, the second optical tooth is arranged at the incident end of the lens, and corresponds to the position of the second light source assembly, so that the second light beam tilts downward after being irradiated by the second optical tooth to form a second auxiliary light beam.

[0010] In some embodiments, the power of the main light source assembly is greater than the power of the first auxiliary light source assembly and the second auxiliary light source assembly.

[0011] The present application provides a vehicle, comprising the aforementioned lighting system.

[0012] The present application provides a lighting control method for the aforementioned vehicle, comprising: obtaining a current body posture of the vehicle; and adjusting the intensity of at least one of a first auxiliary light beam and a second auxiliary light beam according to the body posture.

[0013] In some embodiments, the vehicle body posture includes a nose-down posture; according to the vehicle body posture, the intensity of at least one of the first auxiliary light beam and the second auxiliary light beam is adjusted, including: when the vehicle body posture is a nose-down posture, the intensity of the first auxiliary light beam is increased to a first intensity; the first intensity is greater than the intensity of the first auxiliary light beam when the vehicle is in a non-tilted posture.

[0014] In some embodiments, the first intensity is positively correlated with the angle value of the nose tilt.

[0015] In some embodiments, the vehicle body posture includes a tilted nose posture; according to the vehicle body posture, the intensity of at least one of the first auxiliary light beam and the second auxiliary light beam is adjusted, including: when the vehicle posture is a tilted nose posture, the intensity of the second auxiliary light beam is increased to a second intensity; the second intensity is greater than the intensity of the second auxiliary light beam when the vehicle is in a non-tilted posture.

[0016] In some embodiments, the second intensity is positively correlated with the tilt angle of the vehicle head.

[0017] In some embodiments, the control method further includes: obtaining a driving speed of the vehicle; and increasing the intensity of the first auxiliary light beam when the driving speed is greater than or equal to a driving speed threshold.

[0018] In some embodiments, the control method further includes: obtaining current weather conditions; and reducing the intensity of the first auxiliary light beam when the current weather condition is rainy.

[0019] In some embodiments, the control method also includes: obtaining the distance between the calibrated position on the vehicle body and the ground; reducing the intensity of the first auxiliary light beam when the distance between the calibrated position of the vehicle body and the ground increases; and increasing the intensity of the first auxiliary light beam when the distance between the calibrated position of the vehicle body and the ground decreases.

[0020] The vehicle lighting system, vehicle and vehicle lighting control method provided by the present application, on the basis of realizing the lighting of the road condition in front of the vehicle through the main light beam, set the first auxiliary light beam tilted upward and the second auxiliary light beam tilted downward respectively to realize the lighting of areas at different heights. By adjusting the intensity of the first auxiliary light beam and the second auxiliary light beam, the overall illumination range of the vehicle light can be adjusted, which is conducive to avoiding the risk of failure caused by frequent operation of the mechanical structure to adjust the light, and improving the reliability of the vehicle light adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a structural schematic diagram of a vehicle lighting system provided by an embodiment of the present application;

[0022] Figure 2 is a schematic diagram of the installation position of a lighting system of a vehicle provided by an embodiment of the present application;

[0023] Figure 3 is a structural schematic diagram of a vehicle lighting system provided by another embodiment of the present application;

[0024] Figure 4 is a partial structural schematic diagram of a vehicle lighting system provided by another embodiment of the present application;

[0025] Figure 5 is a schematic diagram of a vehicle lighting control method provided by an embodiment of the present application;

[0026] Figure 6 is a schematic diagram of a vehicle lighting scene provided by an embodiment of the present application;

[0027] Figure 7 This is a schematic diagram of a vehicle lighting scene provided by another embodiment of the present application.

[0028] Reference numerals:

[0029] 1: vehicle; 10: lighting system; 100: main beam; 101: main light source assembly; 1011: main light source; 1012: main reflecting mechanism; 110: first auxiliary beam; 111: first light source assembly; 112: first optical tooth; 1111: first light source; 1112: first reflecting mechanism; 120: second auxiliary beam; 121: second light source assembly; 122: second optical tooth; 1211: second light source; 1212: second reflecting mechanism; 102: lens; 103: light board. DETAILED DESCRIPTION

[0030] Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings.

[0031] Combination Figure 1 As shown, an embodiment of the present application provides a lighting system 10 for a vehicle, and the lighting system 10 is used to controllably emit a main beam 100, a first auxiliary beam 110, and a second auxiliary beam 120 to illuminate the front of the vehicle. The vertical plane where the optical axis of the main beam 100 is located is parallel to the vehicle's wheelbase direction; the first auxiliary beam 110 is tilted upward relative to the main beam 100; and the second auxiliary beam 120 is tilted downward relative to the main beam 100. And the intensity of the first auxiliary beam 110 and the second auxiliary beam 120 is adjustable. The vertical plane here is a plane perpendicular to the ground. The wheelbase is the distance between the front axle and the rear axle of the vehicle, and the wheelbase direction is the direction of the shortest line between the front axle and the rear axle of the vehicle.

[0032] The lighting system 10 provided in the embodiment of the present application is used to realize the lighting of the road conditions in front of the vehicle through the main beam 100, and the first auxiliary beam 110 tilted upward and the second auxiliary beam 120 tilted downward are respectively set to realize the lighting of areas at different heights. By adjusting the intensity of the first auxiliary beam 110 and the second auxiliary beam 120, the overall illumination range of the vehicle light can be adjusted, which is conducive to avoiding the risk of failure caused by the movement of the mechanical structure and improving the reliability of the vehicle light adjustment. In addition, since the lighting system 10 does not need to move during the process of realizing the lighting control, there is no need to reserve space for the movement of the mechanical structure, which is conducive to avoiding the situation where the shape opening of the lighting system 10 is too large to affect the appearance.

[0033] In some embodiments, the optical axes of the main beam 100, the first auxiliary beam 110, and the second auxiliary beam 120 belong to the same vertical plane. That is, the optical axis of the first auxiliary beam 110 and the optical axis of the second auxiliary beam 120 are all in the vertical plane where the optical axis of the main beam 100 is located. In this way, the irradiation directions of the first auxiliary beam 110, the second auxiliary beam 120, and the main beam 100 are all directly in front of the vehicle, without any deviation in the left and right positions. When the vehicle moves forward, the light in front of the vehicle is evenly distributed, providing a good lighting environment for the driving process.

[0034] Furthermore, in some embodiments, the first angle between the main beam 100 and the first auxiliary beam 110 is less than or equal to 10 degrees. In this way, limiting the first angle between the main beam 100 and the first auxiliary beam 110 is conducive to improving the coherence between the illumination area of ​​the main beam 100 and the illumination area of ​​the first auxiliary beam 110. It is prevented that the main beam 100 and the first auxiliary beam 110 are too dispersed, resulting in a shadow area with poor lighting effect between the illumination area of ​​the main beam 100 and the illumination area of ​​the first auxiliary beam 110, thereby affecting driving safety.

[0035] In some embodiments, the second angle between the main beam 100 and the second auxiliary beam 120 is less than or equal to 10 degrees. In this way, limiting the second angle between the main beam 100 and the second auxiliary beam 120 is conducive to improving the coherence between the illumination area of ​​the main beam 100 and the illumination area of ​​the second auxiliary beam 120, and avoiding the situation where there is a shadow area with poor lighting effect between the illumination area of ​​the main beam 100 and the illumination area of ​​the second auxiliary beam 120, which affects driving safety. At the same time, it is prevented that the second angle between the second auxiliary beam 120 and the main beam 100 is too large, resulting in the irradiation distance of the second auxiliary beam 120 being too close and unable to play a good guiding effect.

[0036] Figure 2 This is a side cross-sectional view of a portion of the vehicle, where position Z1 is at a higher vertical height than position Z2. Figure 2 As shown, in some embodiments, the lighting system 10 is used as a high beam lamp and is arranged at Figure 2 In some embodiments, the lighting system 10 is used as a low beam light and is arranged at Figure 2 Position Z2 in.

[0037] Combination Figure 3 and Figure 4 As shown, in some embodiments, the lighting system 10 includes a main light source assembly 101, a first light source assembly 111, a second light source assembly 121, a first refraction mechanism, and a second refraction mechanism. The main light source assembly 101 is used to emit a main light beam 100. The first light source assembly 111 is used to emit a first light beam that is higher than the optical axis of the main light beam 100; the first refraction mechanism is arranged in the light beam emission direction of the first light source assembly 111, so that the first light beam tilts upward after being irradiated by the first refraction mechanism to form a first auxiliary light beam 110. The second light source assembly 121 is used to emit a second light beam that is lower than the optical axis of the main light beam 100; the second refraction mechanism is arranged in the light beam emission direction of the second light source assembly 121, so that the second light beam tilts downward after being irradiated by the second refraction mechanism to form a second auxiliary light beam 120. In this way, the refraction mechanism is used to achieve accurate control of the angles of the first light beam emitted by the first light source assembly 111 and the second light beam emitted by the second light source assembly 121.

[0038] Specifically, each light source assembly including the main light source assembly 101, the first light source assembly 111 and the second light source assembly 121 includes a light source and a reflection mechanism, and the light source and the reflection mechanism correspond to each other. The light source is used to emit light, and the reflection mechanism is used to concentrate the light emitted by the light source and emit it in a specific direction. Specifically, the main light source assembly 101 includes a main light source 1011 and a main reflection mechanism 1012. The first light source assembly 111 includes a first light source 1111 and a first reflection mechanism 1112, and the second light source assembly 121 includes a second light source 1211 and a second reflection mechanism 1212. In some embodiments, the first reflection mechanism 1112, the second reflection mechanism 1212 and the main reflection mechanism 1012 have the same mechanism and relative setting position with the light source, achieve the same reflection effect, and directly control the direction of the light by the first refraction mechanism and the second refraction mechanism. In some embodiments, the first reflecting mechanism 1112, the second reflecting mechanism 1212 and the main reflecting mechanism 1012 have different relative reflecting positions with respect to the light source, and compared with the light beam reflected by the main reflecting mechanism 1012, the light beam reflected by the first reflecting mechanism 1112 is tilted upward, and the light beam reflected by the second reflecting mechanism 1212 is tilted downward. That is, the first reflecting mechanism 1112 and the first refractive mechanism in the first light source assembly 111 are used together to adjust the direction of the light beam to distinguish it from the main light beam 100 and form the first auxiliary light beam 110; the second reflecting mechanism 1212 and the second refractive mechanism in the second light source assembly 121 are used together to adjust the direction of the light beam to distinguish it from the main light beam 100 and form the second auxiliary light beam 120.

[0039] In some embodiments, the lighting system 10 includes a light board 103, and the lamp beads on the light board 103 serve as light sources in each light source assembly. In some embodiments, a reflective bowl is used as a reflective mechanism, and the reflective bowl corresponds to the lamp beads one by one to achieve accurate control of the direction of the light beam.

[0040] The lighting system 10 further includes a lens 102. The lens 102 is disposed in the light beam emission direction of the main light source assembly 101, the first light source assembly 111, and the second light source assembly 121, and the lens 102 includes an incident end close to the main light source assembly 101, the first light source assembly 111, and the second light source assembly 121, and an emission end far from the main light source assembly 101, the first light source assembly 111, and the second light source assembly 121.

[0041] In some embodiments, the first refraction mechanism includes a first optical tooth 112, which is disposed at the incident end of the lens 102 and corresponds to the position of the first light source assembly 111, so that the first light beam is irradiated by the first optical tooth 112 and tilts upward to form a first auxiliary light beam 110. The second refraction mechanism includes a second optical tooth 122, which is disposed at the incident end of the lens 102 and corresponds to the position of the second light source assembly 121, so that the second light beam is irradiated by the second optical tooth 122 and tilts downward to form a second auxiliary light beam 120. The first optical tooth 112 and the second optical tooth 122 are arranged to change the shape of a part of the lens 102. After the structure is changed, the lens 102 area corresponding to the position of the first light source assembly 111 can realize the refraction of the first light beam, and the lens 102 area corresponding to the position of the second light source assembly 121 can realize the refraction of the second light beam. In this way, the refraction of the first light beam and the second light beam can be realized without adding an independent structure, which is conducive to saving space. By adjusting the specific shapes of the first optical teeth 112 and the second optical teeth 122 , the angles of the first auxiliary light beam 110 and the second auxiliary light beam 120 can be accurately controlled.

[0042] In some embodiments, the first refraction mechanism includes a first refractor, which is disposed between the incident end of the lens 102 and the first light source assembly 111, corresponding to the position of the first light source assembly 111, so that the first light beam is tilted upward after being irradiated by the first refractor to form a first auxiliary light beam 110. The second refraction mechanism includes a second refractor, which is disposed between the incident end of the lens 102 and the second light source assembly 121, corresponding to the position of the second light source assembly 121, so that the second light beam is tilted downward after being irradiated by the second refractor to form a second auxiliary light beam 120. In this way, the refraction of the first light beam and the second light beam is achieved by adding the first refractor and the second refractor. The accurate control of the angles of the first auxiliary light beam 110 and the second auxiliary light beam 120 can be achieved by adjusting the positions and angles of the first refractor and the second refractor.

[0043] In some embodiments, the power of the main light source assembly 101 is greater than the power of the first auxiliary light source assembly and the second auxiliary light source assembly. In this way, the illumination area of ​​each light beam can be concentrated to a certain extent, visibility is enhanced, and driving safety is guaranteed. At the same time, setting the power of the first auxiliary light source to a smaller value is conducive to reducing glare during vehicle driving, especially during night driving, thereby ensuring driving safety. The power here is the maximum electrical power or rated electrical power of the light source in each light source assembly.

[0044] Further, in some embodiments, the power of the first auxiliary light source assembly is 10% to 30% of the power of the main light source assembly 101. More specifically, the power of the first auxiliary light source assembly can be set to 15% of the power of the main light source assembly 101. In some embodiments, the power of the second auxiliary light source assembly is 10% to 30% of the power of the main light source assembly 101. More specifically, the power of the first auxiliary light source assembly can be set to 15% of the power of the main light source assembly 101. In this way, the power values ​​of the first auxiliary light source assembly and the second auxiliary light source assembly are further limited to a certain interval. It can ensure that the lighting system 10 with the main light beam 100 as the main and the first auxiliary light beam 110 and the second auxiliary light beam 120 as the auxiliary is formed, ensuring the concentration of the lighting effect, and avoiding the first auxiliary light beam 110 and the second auxiliary light beam 120 being too weak so that the fill light effect is too poor.

[0045] An embodiment of the present application provides a vehicle, comprising the aforementioned lighting system, wherein the lighting system is provided with one or more.

[0046] Combination Figure 5 As shown, corresponding to the aforementioned vehicle, an embodiment of the present application provides a vehicle lighting control method, including steps S11 to S12.

[0047] Step S11, obtaining the current body posture of the vehicle.

[0048] The vehicle body posture here refers to the tilt of the vehicle body, that is, whether the front of the vehicle is tilted up or down. In the implementation process, an accelerometer, a gyroscope or other sensors can be used as a tilt sensor to sense the tilt of the vehicle body, or a level meter set on the vehicle body can be used to sense the tilt of the vehicle body. When the vehicle is equipped with a visual system or a stability control system for detecting the vehicle body posture, the vehicle body tilt can be monitored through the equipped visual system or stability control system.

[0049] Step S12: adjusting the intensity of at least one of the first auxiliary light beam and the second auxiliary light beam according to the vehicle body posture.

[0050] The vehicle lighting control method provided in the embodiment of the present application reflects the current lighting demand of the vehicle by monitoring the current body posture of the vehicle, and adjusts the intensity of at least one of the first auxiliary light beam and the second auxiliary light beam according to the body posture so that the lighting system can more accurately meet the current lighting demand, thereby improving the accuracy of vehicle lighting control, which is beneficial to providing a better lighting environment for the driving process and optimizing driving safety.

[0051] In some embodiments, the vehicle body posture includes a head-down posture. According to the vehicle body posture, adjusting the intensity of at least one of the first auxiliary light beam and the second auxiliary light beam includes: when the vehicle body posture is a head-down posture, increasing the intensity of the first auxiliary light beam to a first intensity, the first intensity being greater than the intensity of the first auxiliary light beam when the vehicle is not in a tilted posture. Figure 6 As shown, when the body posture of vehicle 1 is the head-down posture, the illumination area of ​​the light is area B. When the body posture of vehicle 1 is the non-tilted posture, the illumination area of ​​the light is A. By comparison, it can be seen that when the body posture is the head-down posture, the illumination area of ​​the light is closer to the vehicle, and the illumination distance is insufficient when the body posture is the head-down posture, relative to the non-tilted posture. At this time, increasing the brightness of the first auxiliary light beam with a higher illumination position can increase the illumination distance, realize the supplement of the illumination distance, and is conducive to optimizing the lighting effect, thereby facilitating driving safety.

[0052] Specifically, in some embodiments, the first intensity is positively correlated with the angle of the vehicle head downward. That is, the greater the angle of the vehicle head downward, the greater the first intensity and the stronger the first auxiliary light beam. The greater the angle of the vehicle head downward, the closer the illumination area of ​​the light is to the vehicle, and the more insufficient the illumination is at a distance from the vehicle. At this time, using a stronger first auxiliary light beam is conducive to more accurately supplementing the missing illumination, thereby optimizing the lighting effect.

[0053] During the implementation process, the correspondence between the first intensity and the angle value of the downward tilt of the vehicle head is calculated in advance, and the first intensity is determined by the correspondence. Specifically, the angle value of the downward tilt of the vehicle head is simulated, and the intensity of the first auxiliary light beam is adjusted so that the lighting effect at the current downward tilt angle of the vehicle head reaches the target lighting effect, and the intensity of the first auxiliary light beam at this time is recorded as the first intensity corresponding to the current downward tilt angle value of the vehicle head. In this way, the correspondence between multiple downward tilt angle values ​​of the vehicle head and the first intensity is established, and it can be called according to the current downward tilt angle value of the vehicle head when applied. In this way, both control accuracy and computing power saving during implementation can be taken into account.

[0054] In some embodiments, according to the posture of the vehicle body, adjusting the intensity of at least one of the first auxiliary light beam and the second auxiliary light beam further includes: when the posture of the vehicle body is a downward tilted posture of the front of the vehicle, reducing the intensity of the second auxiliary light beam to a third intensity, and the third intensity is less than the intensity of the second auxiliary light beam when the vehicle is in a non-tilted posture. When the posture of the vehicle body is a downward tilted posture of the front of the vehicle, the illumination area of ​​the light is closer than that of the non-tilted posture. At this time, reducing the intensity of the second auxiliary light beam is beneficial to avoid excessive illumination of the area close to the vehicle, which is beneficial to improving the uniformity of the lighting. Among them, the third intensity is negatively correlated with the angle value of the downward tilt of the front of the vehicle. That is, the larger the angle value of the downward tilt of the front of the vehicle, the lower the intensity of the second auxiliary light beam. In this way, more accurate lighting control can be achieved, thereby further optimizing the uniformity of the lighting effect of the lighting system. In the implementation process, the value-taking process of the third intensity can be adopted in the same way as the value-taking process of the aforementioned first intensity, which will not be repeated here.

[0055] In some embodiments, the vehicle body posture includes a tilted head posture. According to the vehicle body posture, adjusting the intensity of at least one of the first auxiliary light beam and the second auxiliary light beam includes: when the vehicle posture is a tilted head posture, increasing the intensity of the second auxiliary light beam to a second intensity. Here, the second intensity is greater than the intensity of the second auxiliary light beam when the vehicle is not tilted. Figure 7 As shown, when the body posture of vehicle 1 is a head-up posture, the illumination area of ​​the light is area C. When the body posture of vehicle 1 is a non-tilted posture, the illumination area of ​​the light is A. By comparison, it can be seen that when the body posture is a head-up posture, the illumination area of ​​the light is too far away from the vehicle, resulting in insufficient light in the area closer to the vehicle. At this time, the intensity of the second auxiliary light beam is enhanced to supplement the lighting in a slightly closer area, thereby optimizing the lighting effect.

[0056] In some embodiments, the second intensity is positively correlated with the angle of the vehicle head tilting upward. That is, relative to the posture of the vehicle head not tilted, the greater the angle of the vehicle head tilting upward, the greater the second intensity. The greater the angle of the vehicle head tilting upward, the farther the illumination area of ​​the light is from the vehicle body, and the less illumination is near the vehicle. At this time, using a stronger second auxiliary light beam is conducive to more accurately supplementing the missing illumination, thereby optimizing the lighting effect.

[0057] In some embodiments, adjusting the intensity of at least one of the first auxiliary light beam and the second auxiliary light beam according to the posture of the vehicle body also includes: when the posture of the vehicle is a tilted posture of the head of the vehicle, reducing the intensity of the first auxiliary light beam to a fourth intensity. The fourth intensity here is less than the intensity of the first auxiliary light beam when the vehicle is in a non-tilted posture. In this way, it is helpful to avoid excessive lighting intensity at a farther distance, and to improve the uniformity of the lighting effect of the lighting system. Among them, in some embodiments, the fourth intensity is negatively correlated with the angle value of the tilted head of the vehicle. That is, the larger the tilted angle of the head of the vehicle, the smaller the fourth intensity. In this way, more accurate lighting control can be achieved, thereby further optimizing the uniformity of the lighting effect of the lighting system.

[0058] During implementation, the process of obtaining the second strength and the fourth strength may be carried out in the same manner as the process of obtaining the first strength, which will not be described in detail here.

[0059] In some embodiments, when the lighting system is turned on, the main beam, the first auxiliary beam, and the second auxiliary beam are all turned on, which helps to avoid the situation where the first auxiliary beam or the second auxiliary beam is turned off, resulting in a dark area, thereby ensuring uniform lighting and further ensuring driving safety.

[0060] In some embodiments, the control method further includes: obtaining the driving speed of the vehicle; when the driving speed is greater than or equal to the driving speed threshold, increasing the intensity of the first auxiliary light beam. Increasing the intensity of the first auxiliary light beam is conducive to increasing the illumination distance of the light and improving the distance of the lighting, so that the user can observe the road conditions at a longer distance, which is conducive to improving the safety of the vehicle when driving at high speed.

[0061] In some embodiments, the control method further includes: obtaining the current weather conditions; when the current weather conditions are rainy, reducing the intensity of the first auxiliary light beam. The height of the first auxiliary light beam is relatively high, and it is more likely to cause dazzle to other vehicles and pedestrians in rainy conditions. Reducing the height of the first auxiliary light beam is conducive to reducing the dazzle effect on other vehicles and pedestrians. At the same time, reducing the intensity of the first auxiliary light beam is conducive to reducing the reflection of light on rain, thereby improving visibility, and is conducive to improving the field of vision of the driver of the vehicle, thereby ensuring driving safety. The weather conditions here can be directly obtained through the Internet. In some embodiments, the judgment of the weather conditions can also be achieved based on the operating conditions of the vehicle. Specifically, in the process of determining that the vehicle wipers are in the on state, the weather condition is rainy.

[0062] In some embodiments, the control method further includes: obtaining the distance between the calibrated position on the vehicle body and the ground; when the distance between the calibrated position of the vehicle body and the ground increases, reducing the intensity of the first auxiliary light beam; when the distance between the calibrated position of the vehicle body and the ground decreases, increasing the intensity of the first auxiliary light beam. Here, the calibrated position on the vehicle body corresponds to the setting position of the lighting system, so that the change in the distance between the calibrated position of the vehicle body and the ground reflects the change in the distance between the lighting system and the ground. Different load conditions of the vehicle will affect the height of the vehicle body, which is equivalent to affecting the height of the lighting system. The distance between the light emission position of the lighting system and the road surface will have a certain impact on the irradiation position of the light, so that the difference between the actual lighting effect and the ideal lighting effect increases. Adjusting the intensity of the first auxiliary light beam according to the calibrated position of the vehicle body further takes into account the influence of the height on the lighting effect, realizes the adjustment of the lighting area at different heights, and is conducive to improving the accuracy of lighting control.

[0063] In some embodiments, the lighting system of the vehicle is provided with an energy-saving mode. The control method includes: in response to the energy-saving mode start instruction, reducing the intensity of the main light beam. In some embodiments, the control method also includes: reducing the intensity of the first auxiliary light beam and / or the second auxiliary light beam. In this way, it is conducive to reducing lighting power consumption. Among them, in some embodiments, the energy-saving mode start instruction can be determined by information input by the user through an input device. In some embodiments, it can be determined whether it is necessary to issue an energy-saving mode start instruction based on the current remaining power of the vehicle, and when the remaining power of the vehicle is lower than the preset power lower limit threshold, an energy-saving mode start instruction is issued to make the lighting system of the vehicle enter the energy-saving mode to maintain the overall operation of the vehicle for a longer time. In some embodiments, it can be determined whether it is necessary to issue an energy-saving mode start instruction based on the road lighting conditions, and an energy-saving mode start instruction is generated when the road lighting is good, so that the lighting system of the vehicle enters the energy-saving mode to reduce lighting power consumption when the lighting demand is low.

[0064] In the description of the present application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include at least one of the features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

Claims

1. A vehicle lighting system, characterized in that: The lighting system is used to controllably emit a main light beam, a first auxiliary light beam, and a second auxiliary light beam toward the front of the vehicle; Wherein, the vertical plane where the optical axis of the main light beam is located is parallel to the wheelbase direction of the vehicle; The first auxiliary light beam is tilted upward relative to the main light beam; The second auxiliary light beam is tilted downward relative to the main light beam; Furthermore, the intensities of the first auxiliary light beam and the second auxiliary light beam are adjustable.

2. The lighting system according to claim 1, characterized in that: The optical axes of the main light beam, the first auxiliary light beam and the second auxiliary light beam belong to the same vertical plane.

3. The lighting system according to claim 2, characterized in that: A first angle between the main light beam and the first auxiliary light beam is less than or equal to 10 degrees; and / or A second included angle between the main light beam and the second auxiliary light beam is less than or equal to 10 degrees.

4. The lighting system according to claim 1, characterized in that: include: A main light source assembly, used for emitting a main light beam; A first light source assembly, used for emitting a first light beam having an optical axis higher than that of the main light beam; A first refraction mechanism is arranged in the light beam emission direction of the first light source assembly, so that the first light beam tilts upward after being irradiated by the first refraction mechanism to form the first auxiliary light beam; A second light source assembly, configured to emit a second light beam having an optical axis lower than that of the main light beam; The second refraction mechanism is arranged in the light beam emitting direction of the second light source assembly, so that the second light beam tilts downward after being irradiated by the second refraction mechanism to form the second auxiliary light beam.

5. The lighting system according to claim 4, characterized in that: The lighting system also includes: A lens is arranged in the light beam emission direction of the main light source assembly, the first light source assembly and the second light source assembly; the lens comprises an incident end close to the main light source assembly, the first light source assembly and the second light source assembly and an emission end far from the main light source assembly, the first light source assembly and the second light source assembly; The first refraction mechanism comprises a first optical tooth, which is arranged at the incident end of the lens and corresponds to the position of the first light source assembly, so that the first light beam tilts upward after being irradiated by the first optical tooth to form the first auxiliary light beam; The second refraction mechanism includes a second optical tooth, which is arranged at the incident end of the lens and corresponds to the position of the second light source assembly, so that the second light beam tilts downward after being irradiated by the second optical tooth to form the second auxiliary light beam.

6. The lighting system according to claim 4, characterized in that: The power of the main light source assembly is greater than the power of the first auxiliary light source assembly and the second auxiliary light source assembly.

7. A vehicle, characterized in that: Comprising a lighting system as claimed in any one of claims 1 to 6.

8. A vehicle lighting control method as claimed in claim 7, characterized in that: include: Get the current body posture of the vehicle; The intensity of at least one of the first auxiliary beam and the second auxiliary beam is adjusted according to the vehicle body posture.

9. The control method according to claim 8, characterized in that: The vehicle body posture includes a downward tilted posture of the front of the vehicle; and adjusting the intensity of at least one of the first auxiliary light beam and the second auxiliary light beam according to the vehicle body posture includes: When the vehicle body posture is a head-down posture, the intensity of the first auxiliary light beam is increased to a first intensity; the first intensity is greater than the intensity of the first auxiliary light beam when the vehicle is in a non-tilted posture.

10. The control method according to claim 9, characterized in that: The first strength is positively correlated with the angle value of the downward tilt of the vehicle front.

11. The control method according to claim 8, characterized in that: The vehicle body posture includes a vehicle head tilt posture; and adjusting the intensity of at least one of the first auxiliary light beam and the second auxiliary light beam according to the vehicle body posture includes: When the vehicle posture is a head-up tilt posture, the intensity of the second auxiliary light beam is increased to a second intensity; the second intensity is greater than the intensity of the second auxiliary light beam when the vehicle is in a non-tilted posture.

12. The control method according to claim 11, characterized in that: The second strength is positively correlated with the upward tilt angle of the vehicle head.

13. The control method according to claim 8, characterized in that: Also includes: Obtaining the driving speed of the vehicle; When the driving speed is greater than or equal to a driving speed threshold, the intensity of the first auxiliary light beam is increased.

14. The control method according to claim 8, characterized in that: Also includes: Get current weather conditions; When the current weather condition is rainy, the intensity of the first auxiliary light beam is reduced.

15. The control method according to claim 8, characterized in that: Also includes: Obtain the distance between the calibrated position on the vehicle body and the ground; When the distance between the calibrated position of the vehicle body and the ground increases, reducing the intensity of the first auxiliary light beam; When the distance between the calibrated position of the vehicle body and the ground becomes smaller, the intensity of the first auxiliary light beam is increased.

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