Variable mode dipped headlight control system and method

Abstract

The invention discloses a variable-mode dipped headlight control system and method. The variable-mode dipped headlight control system comprises a vehicle control unit, an environment sensor, a headlight controller and an adjustable headlight. The output end of the headlight controller is connected to the adjustable headlight, and the adjustable headlight regulates the irradiation range width of light output according to an output control signal of the headlight controller; the output end of the whole vehicle controller is connected to the headlamp controller and used for adjusting and driving the adjustable headlamp through the headlamp controller; the input end of the vehicle control unit is connected with the environment sensor and is used for acquiring an environment signal; the vehicle control unit is connected with a user button, and a user obtains a manual adjusting signal of the user. The lamplight irradiation range is adjusted in an automatic and manual combined mode, the reasonability of the lamplight irradiation range is improved, and the intelligent degree of vehicle lamplight width control is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile lighting control, and in particular to a variable-mode low-beam light control system and method. Background Art

[0002] With the development of automobile intelligent technology, automobile lights have also evolved from traditional lights to automated lights. The most basic one is the automatic headlight, which can automatically turn on the lights at night, thereby reducing user operations and realizing automatic control of automobile lights. At the same time, more intelligent ones such as intelligent high and low beam alternating control have also been developed, which can control high and low beams in an automated way, making the use of lights more intelligent.

[0003] Based on the rapid development of vehicle lighting technology, car headlights with variable low beam illumination range have also been developed. Such car headlights can adjust the illumination width of the vehicle's low beam according to the control signal, thereby satisfying the purpose of user self-adjustment. For example, a headlamp device with patent application number 202022193757.0 adjusts the angle of the low beam module and the high beam reflector through a dimming bracket, thereby adjusting the illumination range of the low beam and high beam, and achieving the purpose of adjustable width of the vehicle headlight illumination range.

[0004] Traditional car headlights with adjustable illumination range are all preset with a default lighting range mode, but in general, users do not pay attention to it or even do not know how to adjust it, resulting in the function not being used normally. At the same time, unreasonable use of the low beam illumination range will also cause light pollution, and unreasonable use of light width in the field of electric vehicles will also lead to a certain amount of energy waste. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a variable mode low beam control system and method, which adjusts the light illumination range by combining automatic and manual methods, increases the rationality of the light illumination range, meets the user's lighting needs, and realizes intelligent and auxiliary control of the width of the light illumination range, thereby improving the user experience.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a variable mode low beam control system, including a vehicle controller, an environmental sensor, a headlight controller and an adjustable headlight; the output end of the headlight controller is connected to the adjustable headlight, and the adjustable headlight adjusts the illumination range width of the light output by the adjuster according to the output control signal of the headlight controller; the output end of the vehicle controller is connected to the headlight controller, which is used to adjust and drive the adjustable headlight through the headlight controller; the input end of the vehicle controller is connected to the environmental sensor for obtaining the environmental signal; the vehicle controller is connected to the user button, and the user obtains the user's manual adjustment signal.

[0007] The environmental sensor includes a light sensor, which is used to collect a light intensity signal of a driving environment; the output end of the light sensor is connected to a vehicle controller; and the vehicle controller outputs an adjustment signal for a light range width according to the light intensity signal.

[0008] The environmental sensor also includes a front obstacle sensor, the output end of which is connected to the vehicle controller. The vehicle controller determines whether the width of the illumination range of the lamp tube needs to be adjusted according to the front obstacle sensor and outputs a corresponding control signal.

[0009] The vehicle controller obtains the current data of the vehicle through the CAN bus, determines whether there is an energy consumption defect based on the current data of the vehicle, and adjusts the width of the vehicle light illumination range accordingly.

[0010] The vehicle controller is provided with lighting modes corresponding to multiple lighting illumination range widths, and the vehicle controller outputs corresponding control instructions to the headlight controller according to the lighting modes to realize control of the vehicle headlights.

[0011] A control method for a variable-mode low-beam control system. After the vehicle light system is started, a vehicle controller enters an automatic adjustment mode and a manual adjustment mode according to a user's selection. In the manual adjustment mode, the vehicle controller outputs a control signal to a headlight controller according to a user's control signal to adjust the width of the headlight's illumination range; in the automatic adjustment mode, the vehicle controller automatically adjusts the width of the light's illumination range according to environmental parameters collected by an environmental sensor.

[0012] After the vehicle is started, if no user operation signal is detected, it will directly enter the automatic adjustment mode. After entering the automatic adjustment mode, the vehicle controller automatically controls the width of the lighting range based on the collected data analysis.

[0013] Light modes with various illumination range widths are pre-set, and each light mode corresponds to a light width adjustment parameter; the user adjusts the light illumination width by manually changing the light mode, or the vehicle controller determines the light mode based on collected data analysis and outputs corresponding control instructions to the headlight controller to control the light width.

[0014] When the headlights are on, the system monitors the obstacle information in front of the vehicle in real time, and determines whether to temporarily adjust the lighting range to illuminate the obstacle based on obstacle analysis.

[0015] Obtain the vehicle's operating status parameters, analyze and determine whether it is necessary to adjust the light illumination range width to the minimum value based on the vehicle's operating status parameters, and control it according to the judgment result.

[0016] The advantages of the present invention are: adjusting the lighting range by combining automatic and manual methods, increasing the rationality of the lighting range, meeting the lighting needs of users while realizing intelligent and auxiliary control of the width of the lighting range of the lights, and improving the user experience. Turning on the intelligent variable mode low beam light, by reducing the low beam light power, the effect of reducing the energy consumption of the light on the vehicle is achieved, which is conducive to increasing the endurance of electric vehicles; turning on the intelligent variable mode low beam light, by reducing the low beam light width, the light pollution of urban environment roads is reduced, and the visual comfort of pedestrians on both sides of the road is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following is a brief description of the contents expressed in the drawings of the present invention and the symbols in the drawings:

[0018] Figure 1 It is a structural principle diagram of the control system of the present invention. DETAILED DESCRIPTION

[0019] The specific implementation of the present invention will be further explained in detail below by describing the optimal embodiment with reference to the accompanying drawings.

[0020] Embodiment 1:

[0021] This solution provides a light control solution with variable light width, which is mainly used to control the light width of the car's low beam or high beam, and provides users with manual and automatic adjustment methods to meet the purpose of intelligently controlling the light width of the car. This light width adjustment is more reasonable and reliable, and can reduce light pollution to roads and pedestrians. At the same time, the light width is automatically and intelligently adjusted considering the vehicle's power consumption, which improves the degree of automation and intelligence of light control and enhances user experience.

[0022] like Figure 1 As shown, a variable mode low beam control system provided in this embodiment includes a vehicle controller, an environmental sensor, a headlight controller and an adjustable headlight; the adjustable headlight refers to a car headlight with an adjustable illumination width range, including a low beam and / or a high beam.

[0023] The output end of the headlight controller is connected to the adjustable headlight, and the headlight controller outputs a control signal to the adjustable headlight. The adjustable headlight adjusts the width of the illumination range of the light output by the adjuster according to the output control signal of the headlight controller, that is, the output control signal of the headlight controller is used to adjust the width range of the light illumination of the adjustable headlight.

[0024] The output end of the vehicle controller is connected to the headlight controller, which is used to adjust and drive the adjustable headlights through the headlight controller; the main function of the headlight controller is to drive and control the adjustable headlights, which is controlled by the vehicle controller. The vehicle controller outputs control instructions for the width range of the headlights to the headlight controller, and the headlight controller controls the adjustable headlights after conversion.

[0025] The illumination width range of the car headlights can be adjusted manually by the user or automatically by the vehicle controller according to the collected data. This embodiment provides two compatible conditional methods to meet the needs of manual adjustment by the user, and when the user does not make manual adjustments, the illumination width range can be automatically adjusted by the detected parameters to meet the purpose of intelligent adjustment. In order to achieve this purpose, this solution is provided with an environmental sensor and a user button; the input end of the vehicle controller is connected to the environmental sensor for obtaining environmental signals; the vehicle controller is connected to the user button, and the user obtains the user's manual adjustment signal. The vehicle controller controls the illumination width range of the car headlights according to the signal input into the vehicle controller by the user button or the environmental sensor.

[0026] The manual button can be a physical button or a virtual button. Taking the virtual button as an example, the user-operated switch button is integrated in the central control touch screen. The user can adjust the width through the buttons in the central control screen or start and turn off the width adjustable function of the car headlights through the buttons in the central control screen, that is, a switch button with adjustable headlight illumination width range is integrated in the central control screen.

[0027] When the switch button is turned off, the vehicle controller receives a signal to turn off the adjustable light illumination range, and the vehicle controller outputs a control command to the headlight controller, which controls the adjustable lights to work within the default illumination width range, and lights up the car headlights for lighting through the default illumination width range. The default illumination width range here is the factory-calibrated car illumination width range, within which the car can meet normal safe driving, and provides the vehicle with a light illumination width range that meets driving safety when the lights are turned on after the adjustable function is turned off.

[0028] When the switch button is turned on, the function of adjusting the width range of the car headlights is turned on. At this time, the vehicle controller can control the width range of the vehicle headlights through the headlight controller according to the adjustment button in the central control screen or according to the collected environment or vehicle parameter data.

[0029] After the vehicle is started, the switch button status is detected first. If the switch button is off, the vehicle controller outputs the control command corresponding to the default light illumination width range to the headlight controller, and the headlight controller controls the car headlights to execute the corresponding illumination width range, so as to satisfy the corresponding light illumination width range after the adjustable function is turned off. After the vehicle is started, when it is detected that the switch button is in the on state, the light illumination range is in the adjustable state. At this time, the vehicle controller can output the control signal for adjusting the light illumination range through the two signals received:

[0030] 1. The light width adjustment signal input by the user through the adjustment button;

[0031] 2. The vehicle controller acquires environmental signals and vehicle operation status data through collection;

[0032] The priority of the two signals is set, where the priority of signal mode 1 is greater than that of signal mode 2. That is, when the signals of signal mode 1 and signal mode 2 are received at the same time, the vehicle controller uses the signal obtained by signal mode 1 to output the control signal of the lighting range, and ignores the data obtained by signal mode 2 before the vehicle is turned off, and uses the signal of signal mode 1 to adjust the lighting range before the vehicle is turned off, so that the user's manual adjustment needs can be fully considered. If the adjustment button is not triggered after the vehicle is started, a reasonable and reliable light width adjustment strategy can be given by automatically adjusting the lighting width to meet the actual needs of users.

[0033] Regardless of the state of the vehicle, when the vehicle is powered on, if the lights are on, the vehicle controller will output the default light illumination range to the headlight controller to execute the vehicle's default illumination range, that is, when the vehicle starts, the default light illumination width range is first used, and then the width is adjusted based on the default light illumination width range.

[0034] After the vehicle is started, if the vehicle light adjustable switch is in the on state and the user does not trigger the adjustment button, the vehicle enters the automatic adjustment mode of the illumination width. In this mode, the vehicle controller automatically adjusts the illumination width range of the headlights based on the vehicle data obtained by the environmental sensor and the vehicle operation data read.

[0035] The environmental sensor includes a light sensor for collecting the light intensity signal of the driving environment; the output end of the light sensor is connected to the vehicle controller; the vehicle controller outputs an adjustment signal for the width of the light range according to the light intensity signal. In the automatic adjustment mode, the vehicle controller outputs a start command to the light sensor, the light sensor collects the current ambient light intensity signal and inputs it into the vehicle controller, the vehicle controller adjusts the current headlight illumination width range according to the current light intensity signal and outputs a corresponding control signal to the headlight controller. The range according to the light intensity adjustment may include multiple modes, each mode corresponds to instructions for the light intensity and vehicle illumination width range, so the corresponding illumination width range instructions can be obtained through the light intensity signal and the headlights can be controlled. Take two modes as an example:

[0036] Mode 1: It is the light intensity value and the corresponding illumination width range under the condition of urban roads;

[0037] Mode 2: Light intensity values ​​and corresponding illumination width range for rural roads.

[0038] Compared with Mode 2, Mode 1 has a narrow low beam illumination range, which is suitable for urban night driving environments with sufficient road infrastructure lighting facilities; Mode 2 has a wide low beam illumination range, which is suitable for rural night driving environments with insufficient road infrastructure lighting facilities.

[0039] Of course, in order to adapt to various road conditions, multiple modes can be set as needed, and multiple points can be set according to the width range. The more the number of settings, the more linear the adjustable light irradiation range, thereby meeting the needs of different light irradiation width ranges. The vehicle controller is set with light modes corresponding to multiple light irradiation range widths. The vehicle controller outputs corresponding control instructions to the headlight controller according to the light mode to realize the control of the vehicle headlights.

[0040] In the automatic adjustment mode, the vehicle controller adjusts the width of the vehicle's light illumination according to the light intensity. At the same time, in order to meet the safety requirements of the vehicle, in the automatic adjustment mode, the vehicle controller calls the laser radar, obstacle sensor, etc. at the front of the vehicle to detect the obstacles in front. The front obstacle sensor can be realized by activating radar, ultrasonic radar, etc. The output end of the front obstacle sensor is connected to the vehicle controller. The vehicle controller determines whether it is necessary to temporarily adjust the width of the light tube illumination range according to the front obstacle sensor and outputs the corresponding control signal. The position of the obstacle in front of the vehicle is detected by radar, the range of the obstacle in front of the vehicle detected by the radar is limited, the position of the obstacle detected by the radar is judged, and it is determined whether the obstacle is in the forward direction of the vehicle and affects the driving safety of the vehicle. If not, the vehicle controller still controls the headlights according to the headlight illumination width controlled by the light intensity; if so, it means that the obstacle may affect driving safety at this time, and the obstacle needs to be illuminated and lit so that the driver can see it to avoid collision or to facilitate safe operation after the driver sees it. Therefore, after judging that the driving safety is affected, the vehicle controller temporarily outputs a control signal to the headlight controller to temporarily adjust the headlight illumination width range to the maximum width range or the illumination range that can include obstacles, so that the user can see the obstacles. Temporarily switching the headlight illumination width means that after judging that the driving safety is affected, the vehicle controller controls the headlight illumination width to be adjusted to the maximum width range or the width range that can illuminate obstacles, and then after maintaining the set time, the vehicle controller returns to the headlight illumination width range adjusted by the optical fiber intensity.

[0041] The obstacle positioning is achieved by using ultrasonic radar obstacle detection, and then the obstacle positioning is converted into the vehicle's azimuth information. Based on the azimuth data of the obstacle and the vehicle's central axis, it can be determined whether the current obstacle is within the current headlight illumination width, that is, whether the current obstacle is illuminated by the headlights. If it is within the illumination range, the light illumination range will not be temporarily adjusted. Otherwise, the vehicle will be controlled by briefly switching the headlight illumination width to illuminate the obstacle, lighting the obstacle within the illumination range and improving the driver's driving safety.

[0042] In a preferred embodiment, the adjustable light is generally set on an electric car. If the car is an electric car, the adjustable range of the light will actually affect the energy consumption. When the illumination range of the headlight is wide, its power is large and the energy consumption is large. On the contrary, when the illumination range is narrow, its power is small and the energy consumption is small. Therefore, the vehicle controller obtains the current data of the vehicle through the CAN bus, and determines whether there is an energy consumption defect based on the current data of the vehicle and adjusts the width of the vehicle light illumination range accordingly. When the vehicle is in an energy consumption defect state, the vehicle controller controls the illumination range of the headlight within the default light illumination width range through the headlight controller. The default light illumination width range is the narrowest light illumination range that meets the user's driving safety. In this way, energy consumption can be reduced and the influence of the light illumination width on energy consumption can be avoided.

[0043] The energy consumption defect state refers to when the vehicle's power battery SOC is less than the set threshold or the vehicle's estimated cruising range cannot meet the destination's mileage requirements. When the power battery SOC is less than the set threshold, the electric vehicle is out of power, so it is necessary to reduce the lighting consumption as little as possible. Therefore, in this state, the vehicle's illumination width range is adjusted to the default light illumination width range, and the vehicle controller can obtain SOC data by reading the data in the BMS through the CAN network; when the vehicle navigation is turned on, the vehicle controller obtains the required distance from the current position to the destination and the estimated cruising range under the current SOC through the navigation data. When the required distance is greater than the estimated cruising range, it means that the vehicle cannot meet the user's cruising range requirements at this time. In order to minimize the waste of cruising range, the priority is to ensure vehicle driving at this time, and the illumination width range of the headlights is adjusted to the default light illumination width range.

[0044] Embodiment 2:

[0045] This embodiment provides a control method based on the control system of embodiment 1. The control method is implemented based on the control system in the above embodiment. After the vehicle light system is started, the vehicle controller enters the automatic adjustment mode and the manual adjustment mode according to the user's selection. In the manual adjustment mode, the vehicle controller outputs a control signal to the headlight controller according to the user's control signal to adjust the width of the illumination range of the vehicle light; in the automatic adjustment mode, the vehicle controller automatically adjusts the width of the illumination range of the light according to the environmental parameters collected by the environmental sensor. After the vehicle is started, if the user's operation signal is not detected, the automatic adjustment mode is directly entered. After entering the automatic adjustment mode, the vehicle controller automatically controls the width of the illumination range of the light based on the collected data analysis.

[0046] When the lights are on, the obstacle information in front of the vehicle is monitored in real time, and based on the obstacle analysis, it is determined whether to temporarily adjust the lighting range to illuminate the obstacle. In the automatic adjustment mode, the vehicle controller adjusts the width of the vehicle's lighting according to the light intensity. At the same time, in order to meet the safety requirements of the vehicle, in the automatic adjustment mode, the vehicle controller calls the laser radar and obstacle sensor at the front of the vehicle to detect obstacles in front. The front obstacle sensor can be implemented by activating radar, ultrasonic radar, etc. The output end of the front obstacle sensor is connected to the vehicle controller. The vehicle controller determines whether it is necessary to temporarily adjust the width of the light tube illumination range according to the front obstacle sensor and outputs the corresponding control signal. The position of the obstacle in front of the vehicle is detected by radar, the range of the obstacle in front of the vehicle detected by the radar is limited, the position of the obstacle detected by the radar is judged, and it is judged whether the obstacle is in the forward direction of the vehicle and affects the driving safety of the vehicle. If not, the vehicle controller still controls the headlights according to the headlight illumination width controlled by the light intensity; if so, it means that the obstacle may affect driving safety at this time, and the obstacle needs to be illuminated and lit so that the driver can see it to avoid collision or to facilitate safe operation after the driver sees it. Therefore, after judging that driving safety is affected, the vehicle controller briefly outputs a control signal to the headlight controller to temporarily adjust the headlight illumination width range to the maximum width range or the illumination range that can include the obstacle, so that the user can see the obstacle. The short-term switching of the headlight illumination width means that after judging that driving safety is affected, the vehicle controller controls the headlight illumination width to be adjusted to the maximum width range or the width range that can illuminate the obstacle, and then after maintaining the set time, the vehicle controller returns to the headlight illumination width range adjusted by the fiber optic intensity.

[0047] The obstacle positioning is achieved by using ultrasonic radar obstacle detection, and then the obstacle positioning is converted into the vehicle's azimuth information. Based on the azimuth data of the obstacle and the vehicle's central axis, it can be determined whether the current obstacle is within the current headlight illumination width, that is, whether the current obstacle is illuminated by the headlights. If it is within the illumination range, the light illumination range will not be temporarily adjusted. Otherwise, the vehicle will be controlled by briefly switching the headlight illumination width to illuminate the obstacle, lighting the obstacle within the illumination range and improving the driver's driving safety.

[0048] The vehicle's operating status parameters are obtained, and based on the vehicle's operating status parameters, it is analyzed and judged whether the width of the light illumination range needs to be adjusted to the minimum value, and the control is performed according to the judgment result. Adjustable lights are generally set on electric vehicles. If the car is an electric car, the adjustable range of the lights will actually affect energy consumption. When the illumination range of the headlights is wide, its power is large and the energy consumption is large. On the contrary, when the illumination range is narrow, its power is small and the energy consumption is small. Therefore, the vehicle controller obtains the current data of the vehicle through the CAN bus, and judges whether there is an energy consumption defect based on the current data of the vehicle and adjusts the width of the vehicle's light illumination range accordingly. When the vehicle is in an energy consumption defect state, the vehicle controller controls the illumination range of the headlights within the default light illumination width range through the headlight controller. The default light illumination width range is the narrowest light illumination range that meets the user's driving safety. This can reduce energy consumption and avoid the impact of the light illumination width on energy consumption.

[0049] The energy consumption defect state refers to when the vehicle's power battery SOC is less than the set threshold or the vehicle's estimated cruising range cannot meet the destination's mileage requirements. When the power battery SOC is less than the set threshold, the electric vehicle is out of power, so it is necessary to reduce the lighting consumption as little as possible. Therefore, in this state, the vehicle's illumination width range is adjusted to the default light illumination width range, and the vehicle controller can obtain SOC data by reading the data in the BMS through the CAN network; when the vehicle navigation is turned on, the vehicle controller obtains the required distance from the current position to the destination and the estimated cruising range under the current SOC through the navigation data. When the required distance is greater than the estimated cruising range, it means that the vehicle cannot meet the user's cruising range requirements at this time. In order to minimize the waste of cruising range, the priority is to ensure vehicle driving at this time, and the illumination width range of the headlights is adjusted to the default light illumination width range.

[0050] Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, they are all within the protection scope of the present invention.

Claims

1. A variable mode low beam control system, characterized in that: It includes a vehicle controller, an environmental sensor, a headlight controller and an adjustable headlight; the output end of the headlight controller is connected to the adjustable headlight, and the adjustable headlight adjusts the illumination range width of the light output by the adjuster according to the output control signal of the headlight controller; the output end of the vehicle controller is connected to the headlight controller, which is used to adjust and drive the adjustable headlight through the headlight controller; the input end of the vehicle controller is connected to the environmental sensor, which is used to obtain the environmental signal; the vehicle controller is connected to the user button, and the user obtains the user's manual adjustment signal.

2. A variable mode low beam headlight control system as claimed in claim 1, characterized in that: The environmental sensor includes a light sensor, which is used to collect a light intensity signal of a driving environment; the output end of the light sensor is connected to a vehicle controller; and the vehicle controller outputs an adjustment signal for a light range width according to the light intensity signal.

3. A variable mode low beam headlight control system as claimed in claim 2, characterized in that: The environmental sensor also includes a front obstacle sensor, the output end of which is connected to the vehicle controller. The vehicle controller determines whether the width of the illumination range of the lamp tube needs to be adjusted according to the front obstacle sensor and outputs a corresponding control signal.

4. A variable mode low beam headlight control system according to any one of claims 1 to 3, characterized in that: The vehicle controller obtains the current data of the vehicle through the CAN bus, determines whether there is an energy consumption defect based on the current data of the vehicle, and adjusts the width of the vehicle light illumination range accordingly.

5. A variable mode low beam headlight control system according to any one of claims 1 to 3, characterized in that: The vehicle controller is provided with lighting modes corresponding to multiple lighting illumination range widths, and the vehicle controller outputs corresponding control instructions to the headlight controller according to the lighting modes to realize control of the vehicle headlights.

6. A control method for a variable mode low beam control system according to any one of claims 1 to 5, characterized in that: After the headlight system is started, the vehicle controller enters automatic adjustment mode and manual adjustment mode according to the user's selection. In manual adjustment mode, the vehicle controller outputs control signals to the headlight controller according to the user's control signals to adjust the width of the headlight's illumination range; in automatic adjustment mode, the vehicle controller automatically adjusts the width of the light's illumination range according to the environmental parameters collected by the environmental sensors.

7. The control method of a variable mode low beam control system according to claim 6, characterized in that: After the vehicle is started, if no user operation signal is detected, it will directly enter the automatic adjustment mode. After entering the automatic adjustment mode, the vehicle controller automatically controls the width of the lighting range based on the collected data analysis.

8. The control method of a variable mode low beam control system according to claim 6, characterized in that: Light modes with various illumination range widths are pre-set, and each light mode corresponds to a light width adjustment parameter; the user adjusts the light illumination width by manually changing the light mode, or the vehicle controller determines the light mode based on collected data analysis and outputs corresponding control instructions to the headlight controller to control the light width.

9. The control method of a variable mode low beam control system according to claim 6, characterized in that: When the headlights are on, the system monitors the obstacle information in front of the vehicle in real time, and determines whether to temporarily adjust the lighting range to illuminate the obstacle based on obstacle analysis.

10. The control method of a variable mode low beam control system according to claim 6, characterized in that: Obtain the vehicle's operating status parameters, analyze and determine whether it is necessary to adjust the light illumination range width to the minimum value based on the vehicle's operating status parameters, and control it according to the judgment result.

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