CN115009149A - Vehicle lamp system control method, vehicle, and storage medium - Google Patents

Abstract

The invention discloses a vehicle lamp system control method, a vehicle and a storage medium. Wherein, the method comprises the following steps: acquiring operating condition parameters of a lamp system of a vehicle; determining one of more than one preset derating curve as a target derating curve according to the operating condition parameters; and controlling the running of the car lamp system according to the target derating curve. The invention aims to improve the derating accuracy of the car lamp system, is closer to the actual operation condition of the car lamp system, ensures that the luminous flux of the car lamp system is effectively used under different illumination modes, avoids the excess performance of the car lamp system, realizes the maximum illumination of the car lamp on a road surface, ensures the high-temperature-resistant service life of an electronic device in the car lamp system, can avoid the sudden reduction of the luminous flux, reduces the visual impact on a driver in the derating process and improves the driving safety of the car.

Description

Vehicle lamp system control method, vehicle, and storage medium

technical field

The present invention relates to the technical field of vehicles, and in particular, to a vehicle lamp system control method, a vehicle and a storage medium.

Background technique

At present, the lamp system on a vehicle generally needs to be controlled by a derating curve during operation, and the derating is performed at a constant rate when the derating starting temperature in the derating curve is reached.

However, there is generally only a single derating curve used to control the car light system, and the car light system generally has multiple lighting modes. Under the control of a single derating curve, some lighting modes will derate too much and the luminous flux cannot be used effectively. Causes excessive performance of the lamp system. In some lighting modes, the lamp system will derate too little, resulting in excessive temperature and reducing the service life of the lamp system. In the process of derating, the derating is generally performed at a constant rate, which will cause derating. In the initial stage, the customer obviously perceives that the light pattern is dimmed, and the visual impact felt by the driver affects the driving safety. In addition, the derating curve is formulated without considering the influence of the driving state of the vehicle, resulting in the derating of the lamp system according to the derating curve. It is easy to derate too much or too little, resulting in excessive performance of the lamp system or excessive temperature and damage to the life of electronic devices.

SUMMARY OF THE INVENTION

The main purpose of the present invention is to provide a vehicle lamp system control method, vehicle and storage medium, which aim to improve the derating accuracy of the vehicle lamp system, be closer to the actual operating conditions of the vehicle lamp system, and ensure that the vehicle lamp system operates in different lighting modes. The effective use of the luminous flux can avoid excess performance of the lamp system, realize the maximum illumination of the road by the lamp, and ensure the high temperature resistance life of the electronic components in the lamp system. Visual impact, improve vehicle driving safety.

In order to achieve the above object, the present invention provides a vehicle lamp system control method, the vehicle lamp system control method comprising the following steps:

Obtain the operating condition parameters of the vehicle's light system;

Determine one of the more than one preset derating curves as the target derating curve according to the operating condition parameters;

The vehicle lamp system is controlled to operate according to the target derating curve.

Optionally, the operating condition parameters include at least one of the following parameters:

Whether the vehicle light system has lighting requirements for corners;

Whether the vehicle light system has turned on the preset low beam lighting mode;

Whether the current period of operation of the vehicle is in the target period, and the environmental parameter corresponding to the target period is greater than the preset parameter;

Whether the vehicle is in an idling state for more than a preset period of time;

The target lighting mode that needs to be turned on in the current driving state of the vehicle.

Optionally, the step of acquiring the operating condition parameters of the lamp system of the vehicle includes:

Acquire the speed of the vehicle and the corner angle of the vehicle; determine whether the lamp system has a curve lighting requirement according to the vehicle speed and the corner angle;

And/or, obtain the first on-off state parameter of the low beam function of the vehicle light system and the second on-off state parameter of the adaptive headlight function; according to the first on-off state parameter and the first on-off state parameter The second on-off state parameter determines whether the vehicle light system has turned on the preset low-beam lighting mode;

And/or, obtain the current time information of the vehicle operation and the ambient illuminance of the environment in which it is located, and determine whether the current period of the vehicle operation is in the target period according to the time information and the ambient illuminance, and the target period for the summer day;

And/or, obtain the engine operating parameters of the vehicle, the gearbox operating parameters of the vehicle, and the motion characteristic parameters of the vehicle, and determine according to the engine operating parameters, the gearbox operating parameters, and the motion characteristic parameters. Whether the vehicle is in the idle state for more than a preset period of time.

Optionally, the step of determining one of more than one preset derating curve as the target derating curve according to the operating condition parameter includes:

When the vehicle lamp system has a curve lighting requirement, determining a curve corresponding to the target lighting mode among more than one first preset derating curve as the target derating curve;

When the vehicle light system does not have the curve lighting requirement and the preset low beam lighting mode is not turned on, or, when the vehicle lamp system does not have the curve lighting requirement, the preset near-beam lighting mode is not turned on When the light illumination mode is turned on and the current time period is not in the target time period, or, when the vehicle light system does not have the curve lighting requirement, the preset low beam illumination mode is turned on, the current time period In the target period and when the vehicle is not in the idle state for more than the preset time period, determining the curve corresponding to the target lighting mode as the target in more than one second preset derating curve Derating curve;

When the vehicle light system does not have the curve lighting demand, the preset low beam lighting mode is turned on, the current period is in the target period, and the vehicle is in the idle state for the preset When the duration is longer than that, determine the third preset derating curve as the target derating curve.

Optionally, the first preset derating curve is a derating curve tested under a first target condition in a first state, and the first state includes that the vehicle lamp system is in a corresponding state during the driving of the vehicle. There is curve lighting in the target lighting mode, and the first target condition includes that the luminous flux of the vehicle lamp system reaches the first target luminous flux when the vehicle lamp system as a whole is running at the first target ambient temperature and maintains the rated operating parameters, and the luminous flux of the vehicle lamp system reaches the first target luminous flux. The temperature of the vehicle lamp system is less than the safety threshold when the vehicle lamp system as a whole is operating with the minimum operating parameters under the worst ambient temperature;

The second preset derating curve is a derating curve determined under a second target condition in a second state, and the second state includes that the vehicle lamp system is in a corresponding target lighting mode during the running of the vehicle. There is corner lighting, and the second target condition includes that the luminous flux of the vehicle lamp system reaches the second target luminous flux when the vehicle lamp system as a whole is operating at a second target ambient temperature and maintains rated operating parameters, and the vehicle lamp system The temperature of the vehicle lamp system is less than the safety threshold when the whole is running with the minimum operating parameters under the worst ambient temperature;

The third preset derating curve is a derating curve tested under a third target condition in a third state, and the third state includes that the vehicle lamp system is in the preset near state when the vehicle is in an idling state. Lighting mode with corner lighting, the third target condition includes a first side of the vehicle light system at a third target ambient temperature and a second side of the vehicle light system at a fourth target ambient temperature maintaining rated The operating parameters are running, and the luminous flux of the vehicle lamp system reaches a third target luminous flux, the third target ambient temperature is lower than the fourth target ambient temperature, and the first side is that the vehicle lamp system is far away from the vehicle The side of the engine, the second side is the side of the light system close to the engine, and the light system as a whole is in the worst ambient temperature and operates with minimum operating parameters. The temperature is less than the safety threshold;

The first target ambient temperature, the second target ambient temperature, the third target ambient temperature, and the fourth target ambient temperature are all lower than the worst ambient temperature.

Optionally, the first state further includes that the vehicle travels at a preset speed associated with the corresponding target lighting mode;

The second state further includes that the vehicle travels at a preset speed associated with the corresponding target lighting mode;

Wherein, different target lighting modes correspond to different preset vehicle speeds.

Optionally, the vehicle light system is an adaptive headlight system, and the target lighting mode is one of multiple low-beam lighting modes corresponding to the adaptive headlight system. The modes correspond to different first preset derating curves and different second preset derating curves.

Optionally, the preset derating curve includes a first curve segment, a second curve segment connected to the first curve segment, and a third curve segment connected to the second curve segment, the first curve segment. The segment represents that the operating parameters of the vehicle lamp system remain unchanged as the temperature of the environment where the vehicle lamp system is located, and the second curve segment represents the change in the temperature of the environment where the vehicle lamp system is located. The operating parameters of the vehicle lamp system show a downward trend and are smaller than the rated operation parameters, and the third curve segment represents that the temperature of the environment where the vehicle lamp system is located increases, and the operation parameters of the vehicle lamp system maintain the minimum operating parameters unchanged. , the minimum operating parameter is smaller than the rated operating parameter.

Optionally, the different preset derating curves correspond to different test states of the vehicle lamp system, and before the step of acquiring the operating condition parameters of the vehicle lamp system, the method further includes:

Acquire an initial derating curve that meets the corresponding target condition measured by the vehicle lamp system in each of the test states, where the initial derating curve includes initial curves corresponding to the first curve segment and the second curve segment segment and the third curve segment, and define the temperature of the environment where the vehicle lamp system is located corresponding to the connection point between the initial curve segment and the third curve segment as the cut-off temperature;

The rated operating parameter is reduced according to more than one preset parameter adjustment value to obtain more than one target operation parameter, and the cut-off temperature is reduced according to the more than one preset temperature adjustment value to obtain more than one target ambient temperature;

Acquiring an ambient temperature value of the vehicle lamp system corresponding to each of the target operating parameters in each of the test states and an operation parameter value of the vehicle lamp system corresponding to each of the cut-off temperatures;

Adjust the corresponding initial curve segments according to the more than one target operating parameters and their corresponding ambient temperature values, and the more than one cut-off temperatures and their corresponding operating parameter values, so as to obtain more than one of the preset reductions. amount curve.

In addition, in order to achieve the above purpose, the present application also proposes a vehicle, the vehicle comprising:

car light system;

A control device, the vehicle lamp system is connected to the control device, and the control device includes:

A memory, a processor, and a vehicle lamp system control program stored on the memory and executable on the processor, the vehicle lamp system control program being executed by the processor to realize the vehicle according to any one of the above The steps of a lamp system control method.

In addition, in order to achieve the above purpose, the present application also proposes a storage medium, where a vehicle lamp system control program is stored on the storage medium, and when the vehicle lamp system control program is executed by a processor, the vehicle lamp system as described in any of the above is realized. The steps of a lamp system control method.

The present invention provides a method for controlling a vehicle lamp system. The method selects one of more than one preset derating curves based on the operating condition parameters of the vehicle lamp system as a target interval curve to control the operation of the vehicle lamp system. Therefore, the derating curve applied to the operation control of the lamp system is no longer a single one, but can be selected from different preset derating curves based on the actual working conditions. The derating range is neither too large nor too small during operation, which effectively improves the derating accuracy of the light system, realizes the maximum illumination of the road by the lights, and ensures the high temperature resistance of the electronic components in the light system. life.

Further, more than one preset derating curve can be selected, which is suitable for different low beam lighting modes of the vehicle light system. Different preset derating curves can be selected correspondingly to control the operation of the vehicle lamp system, which can ensure the operation of the vehicle lamp system under different low beam lighting modes. The luminous flux can be effectively used, and the situation of excess performance can be avoided under different low-beam lighting modes to ensure the high temperature resistance life of electronic devices.

Further, testing the curves under different preset vehicle speeds corresponding to different low beam lighting modes fully considers the influence of vehicle speed on the working temperature of the vehicle lamp system, which is beneficial to improve the accuracy of the preset derating curve formulated. When the preset derating curve corresponding to the lighting mode is selected to control the operation of the lamp system, it further ensures that the luminous flux of the vehicle lamp system can be effectively used in different low-beam lighting modes, and can avoid excess performance in different low-beam lighting modes. High temperature life of electronic devices.

Further, a preset derating curve is obtained after adjusting the initial derating curve based on the rated operating parameters and the cut-off point with more than one control point respectively, so as to ensure that the initial derating curve can be avoided when the operation of the lamp system is controlled according to the preset derating curve. The sudden luminous flux reduction of the stage reduces the visual impact on the driver and improves the driving safety of the vehicle.

Description of drawings

FIG. 1 is a schematic diagram of the hardware structure involved in the operation of an embodiment of the vehicle of the present invention;

FIG. 2 is a schematic flowchart of an embodiment of a vehicle lamp system control method according to the present invention;

3 is a schematic flowchart of another embodiment of a vehicle lamp system control method according to the present invention;

4 is a schematic diagram of a preset derating curve involved in yet another embodiment of the vehicle lamp system control method of the present invention;

FIG. 5 is a schematic flowchart of still another embodiment of a vehicle lamp system control method according to the present invention.

The realization, functional characteristics and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments.

Detailed ways

It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

The main solutions of the embodiments of the present invention are: obtaining the operating condition parameters of the lamp system of the vehicle; determining one of more than one preset derating curves as the target derating curve according to the operating condition parameters; The target derating curve controls the operation of the vehicle light system.

Because in the prior art, there is generally only a single derating curve used to control the car light system, which is easy to make the car light system operate according to the parameters corresponding to the derating curve. Insufficient control accuracy causes the lights to fail to illuminate the road or the lights are damaged when the actual operating temperature exceeds a safe threshold.

The present invention provides the above solution, aiming at improving the derating accuracy of the vehicle lamp system, so as to realize that the vehicle lamp illuminates the road while protecting the vehicle lamp from damage.

An embodiment of the present invention provides a vehicle, and the vehicle may be a vehicle using traditional energy sources or a vehicle using new energy sources such as electric energy.

In the embodiment of the present invention, the vehicle includes a vehicle lamp system 2 and a control device 1 . In this embodiment, the vehicle light system 2 is an adaptive headlight system (ie, an AFS system). In other embodiments, the vehicle light system 2 can also be a conventional vehicle light system 2 (eg, a vehicle light system 2 formed by a combination of low beams, high beams, running lights and front fog lights).

In this embodiment, the AFS system is a light follow-up system that makes the low beam light shaft rotate left and right in conjunction with the steering wheel angle in the horizontal direction, and swing up and down in conjunction with the vehicle height in the vertical direction, or adjust the brightness of each LED to achieve different Low beam type lighting system. The AFS system specifically includes headlight modules, rotating modules and sensor groups (for example, photosensitive sensors, vehicle speed sensors, body height sensors, steering wheel angle sensors, rain sensors, fog sensors, wind speed sensors, particulate matter sensors, car position sensors, etc.) , the sensor group can be used to detect the detection data required for the operation of the vehicle lamp system 2, and the control device 1 can control the operation of the headlamp module and the rotating module according to the data detected by the sensor group. The headlight module can adjust the horizontal angle and vertical angle of the headlight by rotating the motor, and the light pattern can be adjusted by moving the grating. The rotating module can rotate the headlight module to adjust its illumination angle and illumination range.

In this embodiment of the present invention, referring to FIG. 1 , the control device 1 includes: a processor 1001 (eg, a CPU), a memory 1002 , a timer 1003 , and the like. The components in the control device 1 are connected by a communication bus. The memory 1002 may be high-speed RAM memory, or may be non-volatile memory, such as disk memory. Optionally, the memory 1002 may also be a storage device independent of the aforementioned processor 1001 .

Those skilled in the art can understand that the device structure shown in FIG. 1 does not constitute a limitation to the device, and may include more or less components than the one shown, or combine some components, or arrange different components.

As shown in FIG. 1 , the memory 1002 as a storage medium may include a vehicle lamp system control program. In the device shown in FIG. 1 , the processor 1001 can be used to call the vehicle lamp system control program stored in the memory 1002 and execute the relevant steps of the vehicle lamp system control method in the following embodiments.

Embodiments of the present invention further provide a method for controlling a vehicle lamp system, which is applied to the vehicle lamp system control in the above-mentioned vehicle.

Referring to FIG. 2 , an embodiment of a control method for a vehicle lamp system of the present application is proposed. In this embodiment, the vehicle lamp system control method includes:

Step S10, acquiring the operating condition parameters of the lamp system of the vehicle;

The operating condition parameters are specifically related parameters that affect the operation of the vehicle lamp system during the operation process of the scene in which it is located. The operating condition parameters can be specifically determined by acquiring the current state parameters of the vehicle and/or parameters detected by on-board sensors.

Step S20, determining one of more than one preset derating curve as the target derating curve according to the operating condition parameter;

Different operating condition parameters correspond to different target derating curves. Specifically, a corresponding derating curve can be established in advance under different operating conditions of the vehicle lamp system as a preset derating curve, and the target conditions to be achieved by the operating condition parameters corresponding to different operating conditions can be established in advance. When the working condition parameter matches the target condition, the preset frequency reduction curve corresponding to the operating condition corresponding to the target condition is used as the target frequency reduction curve.

The preset derating curve represents a characteristic curve in which the operating parameters of the vehicle lamp system change with the temperature of the environment where it is located, and the preset derating curve includes at least a first curve segment and a second curve segment connected to the first curve segment. A curve segment represents that the operating parameters of the vehicle lamp system remain unchanged as the ambient temperature of the vehicle lamp system increases, and the second curve segment represents that the vehicle lamp system increases with the temperature of the environment where the vehicle lamp system is located. The operating parameters show a decreasing trend and are smaller than the rated operating parameters.

In this embodiment, the preset derating curve is a characteristic curve of the operating current of the vehicle lamp system changing with the ambient temperature of the environment where it is located. In other embodiments, the preset derating curve is also a characteristic curve of the operating power or operating voltage of the vehicle lamp system, which varies with the ambient temperature of the environment in which it is located.

The connection point between the first curve segment and the second curve segment is defined as the derating starting point of the vehicle lamp system, and the derating starting points corresponding to different preset derating curves are different. Based on the derating starting point, the starting temperature at which the lamp system begins to derate can be determined.

Further, the preset derating curve may further include a third curve segment connected to the second curve segment, and the third curve segment represents that the temperature of the environment where the vehicle light system is located increases and the operating parameters of the vehicle lamp system maintain a minimum operation. Parameters remain unchanged. The connection point between the second curve segment and the third curve segment is the derating cut-off point of the lamp system. Different preset derating curves correspond to different derating starting points (point b in Figure 4) and derating cut-off point (point c in Figure 4). Based on the derating cut-off point, the end temperature at which the light system stops derating may be determined.

Step S30, controlling the operation of the vehicle lamp system according to the target derating curve.

Specifically, the ambient temperature of the environment where the vehicle lamp system is located is detected, and the target operation parameter corresponding to the detected ambient temperature is determined in the target derating curve to control the operation of the vehicle lamp system.

Among them, when the detected ambient temperature is less than or equal to the derating starting temperature in the target derating curve, the vehicle lamp system operates with rated operating parameters; when the detected ambient temperature is greater than the starting temperature, the vehicle lamp system target The operating parameters decrease as the ambient temperature increases. Further, when the target derating curve also includes the derating cut-off temperature, when the detected ambient temperature is greater than the initial temperature and less than the derating cut-off temperature, the target operating parameters of the vehicle lamp system decrease with the increase of the ambient temperature. When the detected ambient temperature is greater than or equal to the cut-off temperature, the target operating parameters of the vehicle lamp system are maintained at the minimum operating parameters.

An embodiment of the present invention provides a method for controlling a vehicle lamp system. The method selects one of more than one preset derating curves as a target interval curve based on the operating condition parameters of the vehicle lamp system on the vehicle to control the operation of the vehicle lamp system. , based on this, the derating curve applied to the operation control of the lamp system is no longer a single one, but can be selected from different preset derating curves based on the actual working conditions, so as to ensure the derating of the vehicle lamp system. The curve can be accurately matched with the actual working conditions, and the derating range will not be too large or too small during operation, which can effectively improve the derating accuracy of the light system, maximize the illumination of the road by the lights, and ensure the High temperature life of electronic devices.

Further, in this embodiment, the operating condition parameters are all of the following parameters:

Whether the vehicle light system has lighting requirements for corners;

Whether the vehicle light system has turned on the preset low beam lighting mode;

Whether the current period of operation of the vehicle is in the target period, and the environmental parameter corresponding to the target period is greater than the preset parameter; wherein, the environmental parameter includes ambient illuminance and/or ambient temperature, etc.;

Whether the vehicle is in an idling state for more than a preset period of time;

The target lighting mode that needs to be turned on in the current driving state of the vehicle.

Among them, the curve lighting demand is the curve lighting emitted by the demand lamp system. Specifically, the vehicle speed of the vehicle and the turning angle of the vehicle are acquired; whether the vehicle lamp system has a curve lighting requirement is determined according to the vehicle speed and the turning angle. When the vehicle speed is lower than the preset vehicle speed and the corner angle is greater than the preset corner angle, it can be determined that the lighting system has a curve lighting requirement; when the vehicle speed is greater than or equal to the preset vehicle speed or the corner angle is smaller than the preset corner angle, it can be determined that the vehicle lamp system does not have a curve lighting needs. In other embodiments, the lighting requirement of the curve can also be determined by obtaining the command state input by the user.

In this embodiment, the preset low beam lighting mode is the basic low beam lighting mode (C mode) in the lighting mode of the AFS system. Obtain the first on-off state parameter of the low beam function of the vehicle light system and the second on-off state parameter of the adaptive headlight function; according to the first on-off state parameter and the second on-off state The parameter determines whether the vehicle light system has turned on the preset low beam lighting mode. The first on-off state parameter of the low beam function is determined by obtaining the state of the first physical switch corresponding to the function. The first physical switch can be controlled by the user. For example, when the first physical switch is turned on, the first on-off state parameter is determined to be on. , when the first physical switch is turned off, it is determined that the first on-off state parameter is off. The second on-off state parameter of the adaptive headlight function is determined by obtaining the state of the second physical switch corresponding to the function. The second physical switch can be controlled by the user. For example, the second on-off state parameter is determined when the second physical switch is turned on. In order to be turned on, when the second physical switch is turned off, it is determined that the second on-off state parameter is off. When the first on-off state parameter is the low-beam light on and the second on-off state parameter is the adaptive headlight function on, it can be determined that the preset low-beam lighting mode is on; otherwise, it can be determined that the preset low-beam lighting mode is not on . In other embodiments, the preset low-beam lighting mode can also be a low-beam mode in a traditional vehicle lamp system. Based on this, the first on-off state parameter is that the low-beam lights are turned on, and it can be determined that the preset low-beam lighting mode is fully turned on; Otherwise, it can be determined that the preset low beam lighting mode is not turned on.

The above-mentioned target time period may be a time period set by the user, or may be a time period set by the system by default. In this embodiment, the current time information of the vehicle running and the ambient illuminance of the environment in which it is located are obtained, and whether the current period of the vehicle running is within a target period is determined according to the time information and the ambient illuminance, and the target period for summer daytime. The time information in this embodiment includes the current date and the current time. The time information in other embodiments may also include one of the current date and the current time. The ambient light intensity can be specifically obtained through the ambient light sensor on the vehicle body. Wherein, if the current date is a summer date and the ambient illuminance is greater than the preset illuminance, it can be determined that the current period is in the summer daytime when the ambient temperature is relatively high. When the current date and ambient illuminance do not meet the above conditions, it can be determined that the current period is not in the target period. In other embodiments, it may also be determined that the current time period is in a target time period with a higher ambient temperature when the current date is a summer day or when the ambient illuminance is greater than the preset illuminance.

The idling state of the vehicle specifically refers to a state in which the vehicle is running in a neutral state of the engine. Specifically, in this embodiment, the engine operating parameters of the vehicle, the gearbox operating parameters of the vehicle, and the motion characteristic parameters of the vehicle are acquired, and according to the engine operating parameters, the gearbox operating parameters and all The motion characteristic parameter determines whether the vehicle is in an idle state for more than a preset period of time. Specifically, when the transmission operating parameter is that the transmission gear is in P gear or N gear for more than a preset period of time, and/or, when the engine operating parameter is whether the engine operating speed is idle speed and continues for more than a preset period of time , and/or, when the motion characteristic parameter is that the vehicle speed is less than the preset speed and lasts for a preset period of time or longer, it can be determined that the vehicle is in an idling state and continues for a preset period of time; otherwise, it can be determined that the vehicle is not in an idling state for continuous Set time or more. In addition, the motion characteristic parameters may also include changes in vehicle acceleration over time, and the like.

The target lighting mode can be specifically determined by acquiring the driving speed of the vehicle, the environmental characteristics of the driving environment in which it is located, and the like. In this embodiment, one of the preset low-beam lighting modes and other low-beam lighting modes other than the preset low-beam lighting mode is determined as the target lighting mode. In other embodiments, one of the other low beam lighting modes other than the preset low beam mode may be determined as the target lighting mode.

In this embodiment, combining the above-mentioned multiple parameters can accurately reflect the current operating conditions of the vehicle lamp system, and selecting a target derating curve from more than one preset derating curve adapted to the above-mentioned parameters is beneficial to improve the selected The accuracy of the target derating curve can further improve the derating accuracy of the lamp system, so that the lamp can illuminate the road while protecting the lamp from damage.

In other embodiments, the operating condition parameters may also include one or a part of the above parameters, or the operating condition parameters may include other parameters besides the above parameters, such as whether the vehicle is braked or the like.

Further, based on the above embodiment, another embodiment of the control method for the vehicle lamp system of the present application is proposed. In this embodiment, referring to FIG. 3 , the operating condition parameters include all the above parameters, and the step S20 includes:

Step S21, when the vehicle lamp system has a curve lighting requirement, determine the curve corresponding to the target lighting mode among more than one first preset derating curve as the target derating curve;

In more than one first preset derating curve, different target lighting modes may correspond to different first preset derating curves. Different first preset derating curves have different derating starting temperatures and derating ending temperatures.

The corresponding relationship between the target lighting mode and the first preset derating curve may be preset, and based on the corresponding relationship, it may be determined that the first preset derating curve corresponding to the current target lighting mode is the target derating curve.

Step S22, when the vehicle light system does not have the curve lighting requirement and the preset low beam lighting mode is not turned on, or, when the vehicle lamp system does not have the curve lighting requirement, the When the preset low beam lighting mode is turned on and the current period is not within the target period, or, when the vehicle light system does not have the curve lighting requirement, the preset low beam lighting mode is turned on, When the current period is in the target period and the vehicle is not in the idle state for more than the preset period of time, the curve corresponding to the target lighting mode is determined in more than one second preset derating curve as the target derating curve;

In more than one second preset derating curve, different target lighting modes may correspond to different second preset derating curves. Different second preset derating curves have different derating starting temperatures and derating ending temperatures.

The corresponding relationship between the target lighting mode and the second preset derating curve may be preset, and based on the corresponding relationship, the second preset derating curve corresponding to the current target lighting mode may be determined as the target derating curve.

Step S23, when the vehicle light system does not have a curve lighting requirement, the preset low beam lighting mode is turned on, the current time period is in the target time period, and the vehicle is in the idling state and continues for the preset time period. When the set duration is longer than that, determine the third preset derating curve as the target derating curve;

Wherein, the first preset derating curve, the second preset derating curve, and the third preset derating curve are respectively the test results of the vehicle lamp system under different test states before the current moment. Preset derating curve. The state here includes the operating state of the vehicle lamp system itself, the environmental state of the environment where the vehicle lamp system is located, and/or the running state of the vehicle, and the like.

The third preset derating curve, the second preset derating curve, and the first preset derating curve are different from each other, and have different derating starting temperatures and derating ending temperatures, respectively.

In this embodiment, when the vehicle light system has no demand for corner lighting, the preset low beam lighting mode is turned on, the current period is in the target period, and the vehicle is in the idle state and continues When the preset time period is longer than that, it indicates that the lamp system is in a bad working condition. At this time, the lighting mode required by the actual driving state of the vehicle is not considered, and the derating is performed independently of the light pattern currently required by the vehicle, so as to avoid the derating of the lighting mode. The light system will derate too much, resulting in insufficient illuminance of the light system, improving the accuracy of derating under severe working conditions, so as to ensure that the vehicle can operate within the normal temperature range and achieve the required illuminance. When the vehicle light system has a curve lighting requirement, or, when the vehicle lamp system does not have a curve lighting requirement, the preset low beam lighting mode is not turned on or the preset low beam lighting mode is turned on and When the current period is not in the target period or the preset low beam lighting mode is turned on and the current period is in the target period and the vehicle is not in the idle state for more than the preset period of time , the working condition of the car light system is not too bad, and the corresponding target derating curve is selected according to the actual light type currently required by the vehicle, and the optional preset when there is a curve lighting demand and no curve lighting demand The derating curves are different, so that the derating operation of the light system can accurately match the current actual lighting demand of the vehicle, further improving the derating accuracy of the light system, and effectively improving the energy efficiency of the light system under normal operation.

Further, in this embodiment, the vehicle light system is an adaptive headlight system, and the target lighting mode is one of multiple low-beam lighting modes corresponding to the adaptive headlight system. The low beam lighting modes correspond to different first preset derating curves and different second preset derating curves.

In this embodiment, the above-mentioned preset low-beam lighting mode may be one of the various low-beam lighting modes herein. In other embodiments, the preset low beam lighting mode may not be one of the multiple low beam lighting modes here.

In this embodiment, the various low-beam lighting modes specifically include a basic low-beam lighting mode (its corresponding light type is C light type), an urban road low-beam lighting mode (its corresponding light type is V light type), and high-speed low-beam lighting modes. Road low beam lighting mode (its corresponding light type is E light type). In other embodiments, in addition to the modes mentioned here, the various low-beam lighting modes may further include a bad-weather low-beam lighting mode (the corresponding light type is W light type) and the like.

In this embodiment, more than one preset derating curve can be selected, and different preset derating curves can be selected corresponding to different low-beam lighting modes of the vehicle lamp system to control the operation of the vehicle lamp system, which can ensure different low-beam lighting modes. The luminous flux can be effectively used in the lighting mode, and the situation of excess performance can be avoided in different low-beam lighting modes to ensure the high temperature resistance life of electronic devices.

Further, in this embodiment, the first preset derating curve is a derating curve that is tested under a first target condition in a first state, and the first state includes the vehicle in the running process of the vehicle. The lamp system has curve lighting in the corresponding target lighting mode, and the first target condition includes that the luminous flux of the vehicle lamp system reaches the first target temperature and the luminous flux of the vehicle lamp system reaches the first The target luminous flux, and the temperature of the vehicle lamp system when the vehicle lamp system as a whole is operating with minimum operating parameters under the worst ambient temperature is less than the safety threshold.

In this embodiment, different target lighting modes correspond to different first target luminous fluxes, and different target lighting modes correspond to the same first target ambient temperature. In other embodiments, the first target ambient temperatures corresponding to different target lighting modes may also be different.

Specifically, when the vehicle lamp system has corner lighting under the above-mentioned C light type, V light type and E light type respectively during the driving process of the vehicle, the first change relationship between the operating parameters of the vehicle lamp system and the overall ambient temperature can be tested. , determining a first preset derating curve for each corresponding target lighting mode based on the first target condition and the first variation relationship.

The temperature of the light system specifically refers to the junction temperature of the LEDs in the light system. The worst ambient temperature is the maximum temperature allowed by the environment in which the light system is operating normally. The minimum operating parameter is the minimum electrical parameter allowed during the operation of the vehicle lamp system (specifically, it may include minimum current, minimum power, or minimum voltage, etc.). The safety threshold is the maximum temperature allowed without damage to the light system. Different target illumination modes can correspond to different minimum operating parameters. The minimum operating parameter is specifically the operating parameter of the vehicle lamp system corresponding to the worst ambient temperature in the derating curve obtained by fitting.

Further, the luminous flux of the vehicle lamp system reaching the first target luminous flux when the vehicle lamp system as a whole is maintained at the first target ambient temperature and maintaining the rated operating parameters includes: the vehicle lamp system as a whole is maintained at the first target ambient temperature. When the rated operating parameters are running, the luminous flux of the vehicle lamp system reaches the first target luminous flux and the temperature of the vehicle lamp system is lower than the safety threshold. Further, in this embodiment, the second preset derating curve is a derating curve determined under a second target condition in a second state, and the second state includes the vehicle in the running process of the vehicle. The lamp system has no corner lighting in the corresponding target lighting mode, and the second target condition includes that the luminous flux of the vehicle lamp system reaches the first level when the vehicle lamp system as a whole is running at the second target ambient temperature and maintains rated operating parameters. Two target luminous fluxes, and the temperature of the vehicle lamp system when the vehicle lamp system as a whole is operating under the worst ambient temperature and the minimum operating parameter is less than the safety threshold.

Different target lighting modes correspond to different second target luminous fluxes, and the second target ambient temperatures corresponding to different target lighting modes are the same. In other embodiments, the second target ambient temperatures corresponding to different target lighting modes may also be different.

Specifically, when the vehicle lamp system does not have corner lighting under the above-mentioned C light type, V light type and E light type respectively during the driving process of the vehicle, the second change of the operating parameters of the vehicle lamp system with the overall ambient temperature can be tested. relationship, and a second preset derating curve for each corresponding target lighting mode is determined based on the second target condition and the second variation relationship.

In this embodiment, the second target ambient temperature is the same as the above-mentioned first target ambient temperature. In other embodiments, the first target ambient temperature may also be lower than the second target ambient temperature.

Further, the luminous flux of the vehicle lamp system reaches the second target luminous flux when the vehicle lamp system as a whole is maintained at the second target ambient temperature and the rated operating parameters are maintained, including: the vehicle lamp system as a whole is maintained at the second target ambient temperature. When the rated operating parameters are running, the luminous flux of the vehicle lamp system reaches the second target luminous flux and the temperature of the vehicle lamp system is less than a safety threshold.

Further, in this embodiment, the third preset derating curve is a derating curve tested under a third target condition in a third state, and the third state includes the derating curve when the vehicle is in an idling state. The vehicle lighting system has no corner lighting in the preset low beam lighting mode, the third target condition includes a first side of the vehicle lighting system at a third target ambient temperature and a second vehicle lighting system when the vehicle lamp system is operated at the fourth target ambient temperature and the rated operating parameters are maintained and the luminous flux of the vehicle lamp system reaches the third target luminous flux, and the vehicle lamp system as a whole is operated at the minimum operation parameter at the worst ambient temperature The temperature of the vehicle light system is lower than the safety threshold, the third target ambient temperature is lower than the fourth target ambient temperature, and the first side is the side of the vehicle lamp system away from the engine of the vehicle , the second side is the side of the vehicle light system close to the engine.

The third target ambient temperature may be lower than the above-mentioned first target ambient temperature and second target ambient temperature. The fourth target ambient temperature may be higher than the above-mentioned first target ambient temperature and second target ambient temperature. The first target ambient temperature, the second target ambient temperature, the third target ambient temperature, and the fourth target ambient temperature are all lower than the worst ambient temperature.

Specifically, when the vehicle is in an idling state and the vehicle lamp system does not have corner lighting under the above-mentioned C light pattern, the operating parameters of the vehicle lamp system can be tested to change with the ambient temperature of the first side and the ambient temperature of the second side respectively. A third variation relationship of , a third preset derating curve is determined based on the third target condition and the third variation relationship.

Further, the first side of the vehicle lamp system is at the third target ambient temperature and the second side of the vehicle lamp system is at the fourth target ambient temperature to maintain rated operating parameters and the luminous flux of the vehicle lamp system reaches the third target ambient temperature. The three target luminous fluxes include: the first side of the vehicle lamp system is at a third target ambient temperature and the second side of the vehicle lamp system is at a fourth target ambient temperature to maintain rated operating parameters and the luminous flux of the vehicle lamp system The third target luminous flux is reached and the temperature of the vehicle light system is less than a safety threshold.

Further, in this embodiment, the temperature of the vehicle lamp system is less than the safety threshold when the entire vehicle lamp system is operating at the worst environmental temperature and the minimum operating parameters may further include that the vehicle lamp system as a whole is in the most severe environment. The temperature of the vehicle light system is less than the safety threshold when operating with the minimum operating parameters at the temperature and the difference between the temperature of the vehicle lamp system and the safety threshold is greater than a preset difference.

In this embodiment, when the operating conditions of the vehicle lamp system are not too severe, when the vehicle lamp system operates according to the actual lighting requirements of the vehicle lamps during the driving process, the first preset reduction is tested based on the ambient temperature of the whole lamp and the luminous flux requirements. The rated derating curve and the second preset derating curve ensure that the tested derating curve can match the actual lighting demand in the driving state of the vehicle. The accuracy of the first preset derating curve and the second preset derating curve ensures that the derating of the lamp system will not be too large or too small when the vehicle lamp system is running under less severe working conditions, and further improves the derating control of the vehicle lamp system. accuracy. In addition, when the operating conditions of the vehicle system are bad, when the vehicle is running in a low beam mode with low illuminance requirements in the idle state of the vehicle, the third preset derating curve is tested based on the temperature and luminous flux requirements of the lamp system relative to different sides of the engine. It is beneficial to accurately characterize the derating requirements under severe working conditions, to ensure that the derating of the vehicle light system will not be too large or too small when operating under severe working conditions, and to further improve the accuracy of the derating control of the vehicle lamp system.

Further, in this embodiment, the first state further includes the vehicle running at a preset speed associated with the corresponding target lighting mode; the second state further includes the vehicle running at a preset speed associated with the corresponding target lighting mode. Set the vehicle speed to travel; wherein, different target lighting modes correspond to different preset vehicle speeds.

The preset vehicle speed may be specifically determined according to the requirements of the road scene to which the corresponding target lighting mode is applied.

Specifically, when the target lighting mode is one of the above-mentioned multiple low-beam lighting modes, the vehicle speeds corresponding to the C light type, the V light type and the E light type in turn are the first vehicle speed, the second vehicle speed and the third vehicle speed, and the first vehicle speed greater than the second vehicle speed, and the first vehicle speed is less than the third vehicle speed.

Among them, there may be more than one preset vehicle speed associated with the target lighting mode. Based on this, the derating curves corresponding to different preset vehicle speeds can be tested, and more than one candidate derating curve corresponding to the target lighting mode can be obtained. Among the alternative derating curves, the curve under the worst working condition in the target lighting mode is determined as the preset derating curve corresponding to the target lighting mode.

In this embodiment, the preset derating curve is tested considering the influence of vehicle speed on the ambient temperature of the vehicle lamp system under different target lighting modes, which is beneficial to improve the accuracy of the preset derating curve. According to the low beam When the preset derating curve corresponding to the lighting mode is selected to control the operation of the lamp system, it further ensures that the luminous flux of the vehicle lamp system can be effectively used in different low-beam lighting modes, and can avoid excess performance in different low-beam lighting modes. High temperature life of electronic devices.

Further, based on any of the above embodiments, another embodiment of the control method for a vehicle lamp system of the present application is proposed. In this embodiment, referring to FIG. 4 , the preset derating curve includes a first curve segment (ab in FIG. 4 ) and a second curve segment connected with the first curve segment (as in FIG. 4 ) bc) and a third curve segment (cd in FIG. 4 ) connected to the second curve segment, the first curve segment represents the vehicle lamp system with the increase of the temperature of the environment where the vehicle lamp system is located The operating parameters of the vehicle light system remain unchanged at the rated operating parameters, and the second curve segment indicates that the operating parameters of the vehicle light system show a downward trend and are smaller than the rated operating parameters as the temperature of the environment where the vehicle light system is located increases, and the The third curve segment represents that as the temperature of the environment in which the vehicle lamp system is located increases, the operation parameter of the vehicle lamp system maintains the minimum operation parameter unchanged, and the minimum operation parameter is smaller than the rated operation parameter.

In this embodiment, the rated operating parameter is the rated current, and the minimum operating parameter is the minimum operating current. In other embodiments, the rated operating parameter may also be rated voltage or rated power, and the minimum operating parameter may also be minimum operating voltage or minimum operating power.

The first curve segment, the second curve segment, and the third curve segment corresponding to different preset derating curves are different.

In this embodiment, in addition to the derating starting point formed by the connection of the first curve segment and the second curve segment, the preset derating curve also has a derating cut-off point formed by the connection between the second curve segment and the third curve segment. It is beneficial to ensure that the luminous flux of the vehicle lamp system is not too low while the vehicle lamp system operates within a safe temperature range, and further improves the accuracy of the derating control of the vehicle lamp system.

Further, based on the above embodiment, another embodiment of the control method for the vehicle lamp system of the present application is proposed. In this embodiment, different preset derating curves correspond to different test states of the vehicle lamp system. Based on this, referring to FIG. 5 , before step S10 , the method further includes:

Step S01, acquiring an initial derating curve that meets the corresponding target condition measured by the vehicle lamp system in each of the test states; the initial derating curve includes the first curve segment and the corresponding second curve segment. the initial curve segment and the third curve segment, define the temperature of the environment where the vehicle lamp system is located corresponding to the connection point between the initial curve segment and the third curve segment as the cut-off temperature;

When more than one preset derating curve includes the first preset derating curve, the second preset derating curve and the third preset derating curve, the test state correspondingly includes the first state and the second state. and a third state, the corresponding target conditions sequentially include the above-mentioned first target condition, second target condition and third target condition.

The initial curve segment (the dotted line before bc in FIG. 4 ) is specifically a curve segment representing the linear change of the operating parameters of the vehicle lamp system with the ambient temperature.

Step S02, reducing the rated operating parameter according to more than one preset parameter adjustment value to obtain more than one target operating parameter, and reducing the cut-off temperature according to the more than one preset temperature adjustment value to obtain more than one target ambient temperature;

In this embodiment, the preset parameter adjustment value is the first adjustment ratio. Specifically, the first adjustment ratio is greater than 50% and less than 100%. For example, more than one preset parameter adjustment value is 90%, 80%, 70%, more than one target operating parameter is 90%, 80%, 70% of the rated operating parameter in turn. In other embodiments, the preset parameter adjustment value can also be the first adjustment range.

In this embodiment, the preset temperature adjustment value is the second adjustment ratio. Specifically, the second adjustment ratio is greater than 50% and less than 100%. For example, more than one preset temperature adjustment value is 90%, 80%, 70%, then more than one target ambient temperature is 90%, 80%, and 70% of the cut-off temperature. In other embodiments, the preset temperature adjustment value can also be the second adjustment range.

Step S03, acquiring an ambient temperature value corresponding to each of the target operating parameters and an operating parameter value of the vehicle lamp system corresponding to each cut-off temperature when the vehicle lamp system operates in each of the test states;

Ambient temperature values and operating parameter values can be obtained through simulation or actual measurement.

Step S04, adjust the corresponding initial curve segment according to the more than one target operating parameter and its corresponding ambient temperature value, and the more than one cut-off temperature and its corresponding operating parameter value, and obtain more than one said Preset derating curve.

Specifically, each target operating parameter and its corresponding ambient temperature value can correspond to form a first control point, then there is more than one first control point, and more than one cut-off temperature and its corresponding ambient temperature value can correspond to form a For the second control point, there are more than one second control point. Based on more than one first control point and more than one second control point, a target curve segment (the solid line between bc in Figure 4) can be fitted through the multiple control points, and the target curve segment is replaced The initial curve segment obtains the second curve segment in the corresponding preset derating curve, and based on this, a preset derating curve including the first curve segment, the second curve segment, and the third curve segment can be obtained.

In this embodiment, the initial curve segment in the initial derating curve is adjusted through more than one first control point, which is beneficial for the vehicle lamp system to not suddenly decrease in illuminance at the initial stage of derating, and avoids the user's apparent perception of the light pattern becoming darker. , reduce the visual impact on the driver, improve the driving safety of the vehicle, and adjust the initial curve segment in the initial derating curve through more than one second control point, which is beneficial to the working temperature of the light system to be within the safety threshold. Based on this, it can be ensured that the obtained preset derating curve illuminance satisfies the requirement and the vehicle lamp system can operate within a normal working temperature range.

In addition, an embodiment of the present invention also provides a storage medium, where a vehicle lamp system control program is stored on the storage medium, and when the vehicle lamp system control program is executed by a processor, any one of the embodiments of the vehicle lamp system control method is implemented. related steps.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or system comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or system. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in the process, method, article or system that includes the element.

The above-mentioned serial numbers of the embodiments of the present invention are only for description, and do not represent the advantages or disadvantages of the embodiments.

From the description of the above embodiments, those skilled in the art can clearly understand that the method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation. Based on such understanding, the technical solutions of the present invention can be embodied in the form of software products in essence or the parts that make contributions to the prior art, and the computer software products are stored in a storage medium (such as ROM/RAM) as described above. , magnetic disk, optical disk), including several instructions to make a terminal device (which may be a mobile phone, a computer, a server, a vehicle, or a network device, etc.) execute the methods described in the various embodiments of the present invention.

The above are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields , are similarly included in the scope of patent protection of the present invention.

Claims (11)

1. A vehicle lamp system control method is characterized by comprising the following steps:

acquiring operating condition parameters of a lamp system of a vehicle;

determining one of more than one preset derating curve as a target derating curve according to the operating condition parameters;

and controlling the running of the car lamp system according to the target derating curve.

2. The vehicular lamp system control method according to claim 1, wherein the operating condition parameter comprises at least one of:

whether the vehicle light system has a curve lighting demand;

whether the vehicle lamp system has started a preset low beam lighting mode;

whether the current time period of the vehicle operation is in a target time period or not, wherein the environmental parameter corresponding to the target time period is greater than a preset parameter;

whether the vehicle is in an idling state and lasts for more than a preset time length;

and the target illumination mode required to be switched on by the current driving state of the vehicle.

3. The lamp system control method of claim 2, wherein the step of obtaining the operating condition parameter of the lamp system of the vehicle comprises:

acquiring the speed of the vehicle and the corner angle of the vehicle; determining whether the vehicle lamp system has a curve lighting requirement according to the corner angle;

and/or acquiring a first on-off state parameter of a dipped headlight function and a second on-off state parameter of an adaptive headlight function of the car light system; determining whether the vehicle lamp system has started the preset low beam lighting mode according to the first on-off state parameter and the second on-off state parameter;

and/or acquiring current running time information of the vehicle and ambient light illumination of the environment where the vehicle is located, and determining whether the current running time period of the vehicle is in the target time period according to the time information and the ambient light illumination, wherein the target time period is the daytime in summer;

and/or obtaining an engine operation parameter of the vehicle, a gearbox operation parameter of the vehicle and a motion characteristic parameter of the vehicle, and determining whether the vehicle is in the idle state and lasts for more than a preset time according to the engine operation parameter, the gearbox operation parameter and the motion characteristic parameter.

4. The vehicular lamp system control method according to claim 2, wherein the step of determining one of more than one preset derating curves as a target derating curve according to the operating condition parameters comprises:

when the vehicle lamp system has a curve lighting requirement, determining a curve corresponding to the target lighting mode as the target derating curve in more than one first preset derating curve;

determining a curve corresponding to the target illumination mode as the target derating curve among more than one second preset derating curves when the vehicle lamp system does not have the curve illumination requirement and the preset low beam illumination mode is not turned on, or when the vehicle lamp system does not have the curve illumination requirement, the preset low beam illumination mode is turned on and the current time period is not in the target time period, or when the vehicle lamp system does not have the curve illumination requirement, the preset low beam illumination mode is turned on, the current time period is in the target time period and the vehicle is not in the idle state and continues for more than the preset time period;

when the vehicle lamp system does not have the curve lighting requirement, the preset dipped beam lighting mode is turned on, the current time period is in the target time period, and the vehicle is in the idle state and continues for more than the preset time period, determining a third preset derating curve as the target derating curve.

5. The vehicle lamp system control method according to claim 4, wherein the first preset derating curve is a derating curve tested under a first condition during a first state, the first state including that the vehicle lamp system performs curve lighting in a corresponding target lighting mode during the running of the vehicle, the first condition including that a luminous flux of the vehicle lamp system reaches a first target luminous flux when the vehicle lamp system as a whole is at a first target ambient temperature while maintaining a rated operation parameter, and that a temperature of the vehicle lamp system when the vehicle lamp system as a whole is at a worst ambient temperature while operating at a minimum operation parameter is less than a safety threshold;

the second preset derating curve is determined under a second target condition in a second state, the second state includes that the vehicle lamp system does not have curve illumination in a corresponding target illumination mode in the vehicle driving process, the second target condition includes that the luminous flux of the vehicle lamp system reaches a second target luminous flux when the vehicle lamp system is wholly at a second target environment temperature and maintains a rated operation parameter to operate, and the temperature of the vehicle lamp system is smaller than the safety threshold when the vehicle lamp system is wholly at the worst environment temperature and operates at the minimum operation parameter;

the third preset derating curve is a derating curve tested under a third target condition in a third state, the third state includes that when the vehicle is in an idle state, the vehicle lamp system does not have curve lighting in the preset low beam lighting mode, the third target condition includes that a first side of the vehicle lamp system is at a third target ambient temperature and a second side of the vehicle lamp system is at a fourth target ambient temperature to maintain a rated operation parameter for operation, the luminous flux of the vehicle lamp system reaches a third target luminous flux, and the temperature of the vehicle lamp system is less than the safety threshold when the vehicle lamp system is wholly at the worst ambient temperature to operate at the minimum operation parameter, the third target ambient temperature is lower than the fourth target ambient temperature, and the first side is a side of the vehicle lamp system far away from an engine of the vehicle, the second side is the side of the vehicle lamp system close to the engine;

the first target ambient temperature, the second target ambient temperature, the third target ambient temperature, and the fourth target ambient temperature are all less than the worst ambient temperature.

6. The vehicle light system control method according to claim 5, characterized in that the first state further includes the vehicle traveling at a preset vehicle speed associated with the corresponding target illumination pattern;

the second state further comprises that the vehicle runs at a preset vehicle speed associated with the corresponding target lighting mode;

and different target illumination modes correspond to different preset vehicle speeds.

7. The vehicular lamp system control method according to claim 4, wherein the vehicular lamp system is an adaptive headlamp system, the target illumination mode is one of a plurality of low beam illumination modes corresponding to the adaptive headlamp system, and different ones of the low beam illumination modes correspond to different ones of the first predetermined derating curve and different ones of the second predetermined derating curve.

8. The vehicle lamp system control method according to any one of claims 1 to 7, wherein the preset derating curve includes a first curve segment, a second curve segment connected to the first curve segment, and a third curve segment connected to the second curve segment, the first curve segment represents that the operating parameter of the vehicle lamp system maintains a rated operating parameter as the temperature of the environment where the vehicle lamp system is located increases, the second curve segment represents that the operating parameter of the vehicle lamp system is in a decreasing trend and is smaller than the rated operating parameter as the temperature of the environment where the vehicle lamp system is located increases, the third curve segment represents that the operating parameter of the vehicle lamp system maintains a minimum operating parameter as the temperature of the environment where the vehicle lamp system is located increases, and the minimum operating parameter is smaller than the rated operating parameter.

9. The vehicle lamp system control method according to claim 8, wherein different preset derating curves correspond to different test states of the vehicle lamp system, and before the step of obtaining the operating condition parameters of the vehicle lamp system, the method further comprises:

acquiring an initial derating curve which is measured by the vehicle lamp system in each test state and meets corresponding target conditions, wherein the initial derating curve comprises an initial curve segment corresponding to the first curve segment, an initial curve segment corresponding to the second curve segment and a third curve segment, and the temperature of the environment where the vehicle lamp system is located corresponding to a connecting point between the initial curve segment and the third curve segment is defined as a cut-off temperature;

reducing the rated operation parameter according to more than one preset parameter adjustment value to obtain more than one target operation parameter, and reducing the cut-off temperature according to more than one preset temperature adjustment value to obtain more than one target environment temperature;

acquiring an environment temperature value corresponding to each target operation parameter and an operation parameter value of the car lamp system corresponding to each cut-off temperature of the car lamp system in each test state;

and adjusting the corresponding initial curve segment according to the more than one target operating parameter and the corresponding ambient temperature value thereof, and the more than one cutoff temperature and the corresponding operating parameter value thereof to obtain more than one preset derating curve.

10. A vehicle, characterized in that the vehicle comprises:

a vehicle light system;

a control device, the car light system with the control device is connected, the control device includes: memory, a processor and a vehicle light system control program stored on the memory and executable on the processor, the vehicle light system control program when executed by the processor implementing the steps of the vehicle light system control method according to any one of claims 1 to 9.

11. A storage medium characterized in that the storage medium has stored thereon a vehicle lamp system control program that, when executed by a processor, implements the steps of the vehicle lamp system control method according to any one of claims 1 to 9.

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