CN116572824A - Vehicle light control method and device, vehicle and storage medium - Google Patents
Vehicle light control method and device, vehicle and storage medium Download PDFInfo
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- CN116572824A CN116572824A CN202310632530.7A CN202310632530A CN116572824A CN 116572824 A CN116572824 A CN 116572824A CN 202310632530 A CN202310632530 A CN 202310632530A CN 116572824 A CN116572824 A CN 116572824A
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- 238000000034 method Methods 0.000 title claims abstract description 54
- 230000008859 change Effects 0.000 claims abstract description 128
- 238000004590 computer program Methods 0.000 claims description 10
- 238000005286 illumination Methods 0.000 description 21
- 230000007704 transition Effects 0.000 description 18
- 238000010586 diagram Methods 0.000 description 10
- 230000006870 function Effects 0.000 description 7
- 238000004891 communication Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/06—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
- B60Q1/08—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically
- B60Q1/085—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically due to special conditions, e.g. adverse weather, type of road, badly illuminated road signs or potential dangers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The application provides a vehicle light control method, a device, a vehicle and a storage medium, wherein the method comprises the following steps: acquiring a current light mode of a vehicle and the ambient brightness outside the vehicle; and when the ambient brightness is greater than a night threshold and less than a daytime threshold, switching the current light mode to a corresponding target light mode based on the vehicle speed and/or the change trend of the ambient brightness. The method can improve driving safety and balance energy efficiency, and meets the light control requirements of more application scenes.
Description
Technical Field
The present application relates to the field of vehicle technologies, and more particularly, to a vehicle light control method, device, vehicle, and storage medium in the field of vehicle technologies.
Background
With the development of the automobile industry, the degree of automation of vehicles is increasing, which includes automatic control of the vehicle lighting system. In a conventional vehicle light control system, a vehicle judges a current ambient light condition through a light sensor, and then divides two conditions of daytime and nighttime according to ambient brightness. For example, setting the situation that the ambient brightness is lower than a certain threshold value as night, the vehicle automatically turns on a headlight in the night environment; when the ambient brightness is higher than a certain threshold value, the vehicle turns off the headlight automatically in the daytime environment.
Disclosure of Invention
The application provides a vehicle light control method, a device, a vehicle and a storage medium, wherein the method can better balance driving safety and energy efficiency and meet light control requirements of more application scenes. The technical scheme is as follows:
in a first aspect, a vehicle light control method is provided, the method comprising:
acquiring a current light mode of a vehicle and the ambient brightness outside the vehicle;
and when the ambient brightness is greater than a night threshold and less than a daytime threshold, switching the current light mode to a corresponding target light mode based on the vehicle speed and/or the change trend of the ambient brightness.
With reference to the first aspect, in some possible implementations, the method further includes:
when the vehicle is started, initializing the current light mode into a daytime mode if the ambient brightness is larger than or equal to the daytime threshold;
initializing the current light mode to a dark start mode if the ambient brightness is less than the daytime threshold;
wherein the state of the headlight in the daytime mode is a closed state; and the state of the headlight in the dark starting mode is continuously started for a first time length.
With reference to the first aspect and the foregoing implementation manner, in some possible implementation manners, when the current light mode is the dark start mode, the switching, based on a trend of change of the vehicle speed and/or the ambient brightness, the current light mode to a corresponding target light mode includes:
If the time when the vehicle speed exceeds the first speed threshold exceeds the second time, switching the current light mode to a first target light mode, wherein the state of a headlight in the first target light mode is an on state;
and if the time when the vehicle speed exceeds the first speed threshold value does not exceed the second time length, switching the current light mode to a second target light mode, wherein the state of the headlight in the second target light mode is a closed state.
With reference to the first aspect and the foregoing implementation manner, in some possible implementation manners, when the current light mode is the daytime mode, the switching, based on a trend of change of the vehicle speed and/or the ambient brightness, the current light mode to a corresponding target light mode includes:
if the change trend of the ambient brightness is changed from bright to dark and the change speed does not exceed the change threshold, switching the current light mode to a night mode under the condition that the time when the vehicle speed exceeds the second speed threshold exceeds a third time period or the time when the vehicle speed does not exceed the second speed threshold exceeds a fourth time period;
if the change trend of the ambient brightness is from bright to dark and the change speed exceeds the change threshold, switching the current light mode to a tunnel mode;
Wherein, the states of the headlight in the tunnel mode and the night mode are both on states; when the ambient brightness is greater than the night threshold and less than the daytime threshold, the tunnel mode is switched to the daytime mode with a different switching rule from the night mode to the daytime mode.
With reference to the first aspect and the foregoing implementation manner, in some possible implementation manners, when the current light mode is the night mode, the switching, based on a trend of change of the vehicle speed and/or the ambient brightness, the current light mode to a corresponding target light mode includes:
and if the change trend of the ambient brightness is changed from dark to bright, switching the current light mode to the daytime mode under the condition that the time when the vehicle speed exceeds a third speed threshold exceeds a fifth time period or the time when the vehicle speed does not exceed the third speed threshold exceeds a sixth time period.
With reference to the first aspect and the foregoing implementation manner, in some possible implementation manners, when the current light mode is the tunnel mode, the switching, based on a trend of change of the vehicle speed and/or the ambient brightness, the current light mode to a corresponding target light mode includes:
If the change trend of the ambient brightness is changed from dark to bright and the ambient brightness reaches a tunnel brightness threshold, switching the current light mode to the daytime mode;
if the change trend of the ambient brightness is changed from dark to bright and the time when the ambient brightness does not reach the tunnel brightness threshold exceeds a seventh duration, switching the current light mode to the night mode;
the tunnel luminance threshold is determined based on the ambient luminance when the daytime mode is switched to the tunnel mode.
With reference to the first aspect and the foregoing implementation manner, in some possible implementation manners, after the acquiring a current light mode of the vehicle and an ambient brightness outside the vehicle, the method further includes:
when the ambient brightness is less than or equal to a night threshold, setting the current light mode as a third target light mode, wherein the state of a headlight in the third target light mode is an on state;
and when the ambient brightness is greater than or equal to a daytime threshold, setting the current light mode as a fourth target light mode, wherein the state of the headlight in the fourth target light mode is a closed state. In a second aspect, there is provided a vehicle light control apparatus comprising:
The acquisition module is used for acquiring the current light mode of the vehicle and the environment brightness outside the vehicle;
and the first switching module is used for switching the current light mode to a corresponding target light mode based on the vehicle speed and/or the change trend of the environment brightness when the environment brightness is larger than a night threshold and smaller than a daytime threshold.
With reference to the second aspect, in some possible implementations, the apparatus further includes an initialization module, where the initialization module is configured to:
when the vehicle is started, initializing the current light mode into a daytime mode if the ambient brightness is larger than or equal to the daytime threshold;
initializing the current light mode to a dark start mode if the ambient brightness is less than the daytime threshold;
wherein the state of the headlight in the daytime mode is a closed state; and the state of the headlight in the dark starting mode is continuously started for a first time length. .
With reference to the second aspect and the foregoing implementation manner, in some possible implementation manners, when the current light mode is the dark start mode, the first switching module is specifically configured to:
If the time when the vehicle speed exceeds the first speed threshold exceeds the second time, switching the current light mode to a first target light mode, wherein the state of a headlight in the first target light mode is an on state;
and if the time when the vehicle speed exceeds the first speed threshold value does not exceed the second time length, switching the current light mode to a second target light mode, wherein the state of the headlight in the second target light mode is a closed state.
With reference to the second aspect and the foregoing implementation manner, in some possible implementation manners, when the current light mode is the daytime mode, the first switching module is specifically configured to:
if the change trend of the ambient brightness is changed from bright to dark and the change speed does not exceed the change threshold, switching the current light mode to a night mode under the condition that the time when the vehicle speed exceeds the second speed threshold exceeds a third time period or the time when the vehicle speed does not exceed the second speed threshold exceeds a fourth time period;
if the change trend of the ambient brightness is from bright to dark and the change speed exceeds the change threshold, switching the current light mode to a tunnel mode;
Wherein, the states of the headlight in the tunnel mode and the night mode are both on states; when the ambient brightness is greater than the night threshold and less than the daytime threshold, the tunnel mode is switched to the daytime mode with a different switching rule from the night mode to the daytime mode.
With reference to the second aspect and the foregoing implementation manner, in some possible implementation manners, when the current light mode is the night mode, the first switching module is specifically configured to:
and if the change trend of the ambient brightness is changed from dark to bright, switching the current light mode to the daytime mode under the condition that the time when the vehicle speed exceeds a third speed threshold exceeds a fifth time period or the time when the vehicle speed does not exceed the third speed threshold exceeds a sixth time period.
With reference to the second aspect and the foregoing implementation manner, in some possible implementation manners, when the current light mode is the tunnel mode, the first switching module is specifically configured to:
if the change trend of the ambient brightness is changed from dark to bright and the ambient brightness reaches a tunnel brightness threshold, switching the current light mode to the daytime mode;
If the change trend of the ambient brightness is changed from dark to bright and the time when the ambient brightness does not reach the tunnel brightness threshold exceeds a seventh duration, switching the current light mode to the night mode;
the tunnel luminance threshold is determined based on the ambient luminance when the daytime mode is switched to the tunnel mode.
With reference to the second aspect and the foregoing implementation manners, in some possible implementation manners, the apparatus further includes a second switching module, where the second switching module is configured to:
when the ambient brightness is less than or equal to a night threshold, setting the current light mode as a third target light mode, wherein the state of a headlight in the third target light mode is an on state;
and when the ambient brightness is greater than or equal to a daytime threshold, setting the current light mode as a fourth target light mode, wherein the state of the headlight in the fourth target light mode is a closed state.
In a third aspect, a vehicle is provided that includes a memory and a processor. The memory is for storing executable program code and the processor is for calling and running the executable program code from the memory such that the vehicle performs the method of the first aspect or any of the possible implementations of the first aspect.
In a fourth aspect, there is provided a computer program product comprising: computer program code which, when run on a computer, causes the computer to perform the method of the first aspect or any one of the possible implementations of the first aspect.
In a fifth aspect, a computer readable storage medium is provided, the computer readable storage medium storing computer program code which, when run on a computer, causes the computer to perform the method of the first aspect or any one of the possible implementations of the first aspect.
In summary, in the technical scheme of the application, by acquiring the current light mode and the external environment brightness of the vehicle, when the environment brightness is larger than the night threshold and smaller than the daytime threshold, the vehicle can be automatically switched to the corresponding target light mode according to the change trend of the vehicle speed and/or the environment brightness, so that the driving safety can be improved, the balance of energy efficiency can be realized, and the light control requirement of more application scenes can be met.
Drawings
FIG. 1 is an exemplary system architecture diagram of a vehicle light control method provided in an embodiment of the present application;
FIG. 2 is a schematic flow chart of a vehicle light control method provided by an embodiment of the application;
FIG. 3 is a diagram illustrating a relationship between switching of light modes according to an embodiment of the present application;
FIG. 4 is a diagram illustrating an example of the division of the ambient brightness according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a vehicle light control device according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a vehicle light control device according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a vehicle according to an embodiment of the present application.
Detailed Description
The technical scheme of the application will be clearly and thoroughly described below with reference to the accompanying drawings. Wherein, in the description of the embodiments of the present application, unless otherwise indicated, "/" means or, for example, a/B may represent a or B: the text "and/or" is merely an association relation describing the associated object, and indicates that three relations may exist, for example, a and/or B may indicate: the three cases where a exists alone, a and B exist together, and B exists alone, and furthermore, in the description of the embodiments of the present application, "plural" means two or more than two.
The terms "first," "second," and the like, are used below for descriptive purposes only and are not to be construed as implying or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.
Vehicle lighting systems typically have both manual and automatic modes (AUTO) of control, and upon selection of AUTO, the vehicle lighting system enters automated control. The automatic control of the vehicle lighting system needs to automatically control the on or off of the vehicle headlight along with the change of the ambient lighting condition in the running process of the vehicle. It can be understood that when the vehicle runs at night, the environment brightness is low, the driving safety is affected, and the vehicle automatically turns on the headlight to provide additional illumination to ensure the driving safety; when the vehicle runs in daytime, the environment illumination is sufficient, the driving safety requirement is met, and the vehicle automatically turns off the headlight so as to save energy. However, under some special scenes, such as driving scenes at dusk time or dawn time, although the driving scenes have a certain ambient brightness level, the influence on driving safety is low, and energy can be saved without turning on a headlight, but the ambient lighting conditions of the scenes are insufficient, and the driving safety can be further improved by turning on the headlight. Therefore, driving safety and energy efficiency are required to be further balanced so as to meet the light control requirements of more application scenes, and the driving intelligent experience of a user is improved.
Based on the above, the embodiment of the application provides a vehicle light control method. The method may be implemented in dependence on a computer program and may be run on a vehicle light control device based on von neumann system. The computer program may be integrated in the application or may run as a stand-alone tool class application. The vehicle light control device can be a vehicle, a functional module in the vehicle, an on-board computer system, a mobile terminal in communication connection with the vehicle, a cloud server or other equipment with enough processing capacity and proper hardware support.
Fig. 1 is an exemplary system architecture diagram of a vehicle light control method according to an embodiment of the present application.
As shown in fig. 1, the system architecture includes, by way of example, a control system 110, a sensor assembly 120, and a lamp system 130.
The control system 110 may be an onboard computer system including a central processor and memory, and may execute a computer program for implementing a vehicle light control method. The control system 110 may be electrically connected to and in communication with the sensor assembly 120 and the lamp system 130 to receive data from the sensor assembly 120 and the lamp system 130 and to make a lamp control decision. In some embodiments, the control system 110 may include a state machine for managing and switching vehicle light modes. The state machine can determine an appropriate vehicle light mode according to the current vehicle state, sensor data, preset rules and other information, and generate a control signal.
The sensor assembly 120 may include a light sensor, a vehicle speed sensor, etc.; the light sensor is used for sensing the ambient brightness of the environment outside the vehicle, and the vehicle speed sensor is used for measuring the current speed of the vehicle. In some embodiments, the light sensor may employ elements such as photoresistors, photodiodes, photoelectric transducers, etc. to convert illumination intensity into electrical signals for processing. The light sensor can be independently arranged, and can also be integrated with the raindrop sensor into a light rainfall sensor.
The lamp system 130 includes headlights, taillights, turn signals, etc., for providing vehicle lighting and signaling functions. The headlamps in the application refer to a front headlamp or a head lamp, and the headlamps generally comprise a dipped headlight and a high beam, and the step of starting the dipped headlight or the high beam of the vehicle is to start the vehicle headlamp. In some embodiments, the rear lights may be controlled in conjunction with the headlights, for example, by turning on the vehicle headlights while the rear lights are automatically turned on.
Fig. 2 is a schematic flow chart of a vehicle light control method according to an embodiment of the present application.
Illustratively, as shown in FIG. 2, the method includes:
s201, acquiring the current light mode of the vehicle and the ambient brightness outside the vehicle.
The current light pattern indicates a light pattern being performed by the vehicle. The vehicle can set a plurality of light modes according to different application scenes, and any light mode can be switched into one or more other light modes; any light mode can be provided with one or more switching rules (or triggering conditions), and when the current light mode meets any switching rule, the current light mode is switched to a target light mode corresponding to the met switching rule; the target light mode represents a light mode which can be switched in the current light mode, and the current light mode can be set with a plurality of different switching rules so as to correspond to the same target light mode. The light states of the headlight (or other light devices of the headlight system) or the corresponding target light modes or the corresponding switching rules in the different light modes are different.
For example, as shown in fig. 3, the vehicle may set a plurality of light modes such as a dark start mode (dark start), a daytime mode (Day), a Night mode (right), a Tunnel mode (Tunnel), and the like, and each light mode may be switched to one or more other light modes according to a set switching rule. For example, the light mode being performed by the vehicle is a tunnel mode, i.e., the current light mode is a tunnel mode; the current light mode is a tunnel mode, can be switched to a daytime mode under the condition that the first switching rule is met, and can be switched to a night mode under the condition that the second switching rule is met, namely, the target light mode corresponding to the current light mode comprises the daytime mode and the night mode. For another example, the current light mode is a night mode, and may be switched to a daytime mode if the third switching rule is satisfied; the state of the headlight in the tunnel mode and the state of the headlight in the night mode are both in an on state, and the tunnel mode and the night mode can be switched to the daytime mode, but a first switching rule and a third switching rule for switching to the daytime mode corresponding to the tunnel mode and the night mode are different.
The ambient brightness outside the vehicle can be obtained by adopting a light sensor or a light rainfall sensor, and the ambient brightness data can be obtained by detecting the surrounding illumination intensity. The environmental brightness can be obtained by adopting a continuous method, the value of the environmental brightness is collected and recorded in a continuous mode, and the illumination condition is monitored in real time so as to obtain the change trend and the change speed of the environmental brightness.
In some embodiments, as illustrated in fig. 4, the ambient brightness may be divided into a plurality of preset sections according to brightness levels, and the ambient brightness may be divided into a daytime section, a nighttime section, and a transition section by a preset daytime threshold and a nighttime threshold.
The daytime threshold may be set to an ambient brightness limit at which safe driving can be sufficiently ensured, and an ambient brightness range equal to or higher than the daytime threshold may be a daytime zone. The ambient light is sufficient in the daytime, enough illumination conditions can be provided, the vehicle is not required to turn on a headlight, and the driving safety of the vehicle can be ensured.
The night threshold may be set to an ambient brightness limit that significantly affects safe driving, and an ambient brightness range below the night threshold is a night interval. Ambient lighting is insufficient to ensure driving safety during night intervals, requiring the vehicle to turn on the headlights to provide additional illumination.
The ambient brightness range between the daytime threshold and the nighttime threshold is a transition interval. In the transition section, the ambient brightness is higher than the brightness in the night section and lower than the brightness in the daytime section, and the ambient brightness gradually increases from the night threshold to the daytime threshold. In the transition section, because certain ambient light conditions exist, safe driving can be supported to a certain extent, so that the headlight can be selected not to be turned on to save energy, and the headlight can be turned on as required, so that the driving safety is further improved.
In some embodiments, as shown in fig. 3, the current light mode may be initialized to a daytime mode or a dark start mode when the vehicle starts, specifically including:
initializing the current light mode to be a daytime mode if the ambient brightness is greater than or equal to the daytime threshold; and initializing the current light mode into a dark starting mode if the ambient brightness is smaller than the daytime threshold.
As will be appreciated, when the vehicle is not started, the light sensor is not activated and the vehicle headlight is in an off state; when the vehicle is started, the light sensor is activated, and an initial mode can be determined for the vehicle headlight according to the ambient brightness information acquired during the activation of the light sensor.
When the ambient brightness is greater than or equal to the daytime threshold, the brightness interval where the vehicle is located is determined to be the daytime interval, the current light mode is initialized to be the daytime mode, and the state of the headlight in the daytime mode is in the off state.
When the ambient brightness is smaller than the daytime threshold, determining that the brightness interval where the vehicle is located is a night interval or a transition interval, initializing the current light mode into a dark starting mode, and enabling the state of a headlight in the dark starting mode to be in an on state.
Specifically, the state of the headlight in the dark-start mode is continuously on for a first period of time (T 1 ) Representing T after entering dark start mode 1 The headlight is turned on in the time, at T 1 After this time the headlight is turned off. It will be appreciated that the dim-start mode is a transitional light mode when the vehicle is started, and the maximum time the vehicle maintains the dim-start mode is T 1 . T after entering dark Start mode 1 In time, the vehicle can be switched to a corresponding target light mode according to a switching rule in a dark starting mode, or a user can manually operate the light system to enter a manual control gear mode; if at T 1 Switching of light mode is not performed in timeThe dark start mode is switched to daytime mode by default, turning off the headlight. The T is 1 Specific arrangements may be made according to specific embodiments, and are not particularly limited herein.
In some embodiments, when the ambient brightness is less than the daytime threshold, the light mode may also be directly initialized to a night mode, in which the state of the headlight is on, without time limitation.
Compared with the mode of directly entering the night when the vehicle is started, the light mode is initialized to the dark starting mode, can be used as a transitional light mode in a low-brightness environment, and can independently set a switching rule (different from the switching rule in the night mode) at T 1 In the time, the current environment of the vehicle is fully judged, and the vehicle can be switched to a target light mode adapting to the current scene environment at a proper time. For example, when the vehicle is started in the ambient light in the transition zone, the light system enters the dark start mode, at T 1 In time, the vehicle speed or the ambient brightness change can be further used for selecting to switch to the night mode or the daytime mode according to the switching rule met by the vehicle speed or the ambient brightness change.
S202, when the ambient brightness is larger than a night threshold and smaller than a daytime threshold, switching the current light mode to a corresponding target light mode based on the vehicle speed and/or the change trend of the ambient brightness.
Specifically, after the current light mode of the vehicle and the environment brightness outside the vehicle are obtained, a switchable target light mode and a switching rule required for switching to the target light mode can be determined according to the current light mode; one or more factors such as ambient brightness, ambient brightness change trend, vehicle speed and the like can be involved in the switching rule so as to switch to an optimal target light mode, meet the light control requirements of various application scenes and realize the balance of driving safety and energy efficiency.
As illustrated in the section division example diagram of the ambient brightness shown in fig. 4, the ambient brightness in which the vehicle is located may be divided into a daytime section, a nighttime section, or a transitional section. The vehicle is in a daytime zone, the headlight illumination needs to be turned off, energy is saved, the headlight illumination needs to be turned on in a night zone to ensure driving safety, the headlight illumination can be turned on or turned off in a transitional zone, and further analysis and judgment can be performed based on the change trend of the vehicle speed and/or the ambient brightness so as to balance driving safety and energy efficiency.
Based on this, in some embodiments, when the ambient brightness is equal to or less than a night threshold, the current light mode is set to a third target light mode in which a state of a headlight is an on state;
and when the ambient brightness is greater than or equal to a daytime threshold, setting the current light mode as a fourth target light mode, wherein the state of the headlight in the fourth target light mode is a closed state.
Specifically, the third target light mode may be a night mode or a light mode in which other headlamps are in an on state, and the fourth target light mode may be a daytime mode or a light mode in which other headlamps are in an off state.
It will be appreciated that when a vehicle enters a scene with ambient light at daytime hours from a scene with ambient light below a daytime threshold, the vehicle headlight needs to be switched off if the state of the headlight in the current light mode of the vehicle is on, and kept off (e.g. not switched on) if the state of the headlight in the current light mode of the vehicle is off. When a vehicle enters a scene with the ambient brightness being a night interval from the scenes with the ambient brightness being higher than the night threshold, if the headlight in the current light mode of the vehicle is in an off state, the headlight of the vehicle needs to be switched on, and if the headlight in the current light mode of the vehicle is in an on state, the headlight of the vehicle is kept on (for example, the light mode is not switched). The embodiment can ensure that the vehicle can accurately use the proper light mode in daytime or nighttime.
It should be noted that, the light mode may be switched immediately when it is determined that the ambient brightness is greater than or equal to the daytime threshold or less than or equal to the nighttime threshold, or the light mode may be switched after the ambient brightness is maintained within the range for a period of time, so as to avoid frequent and erroneous switching of the light mode caused by the acquisition of an abnormal value by the light sensor.
In some embodiments, as illustrated in fig. 3, when the current light mode is a dark start mode, the target light mode that the dark start mode can switch includes a night mode and a daytime mode, the state of the headlight in the night mode is an on state, and the state of the headlight in the daytime mode is an off state; when the ambient brightness of the vehicle is in the transition zone, the current light mode is switched to a corresponding target light mode based on the vehicle speed and/or the change trend of the ambient brightness, and the method comprises the following steps:
if the time when the vehicle speed exceeds the first speed threshold exceeds the second time, switching the current light mode to a first target light mode, wherein the state of a headlight in the first target light mode is an on state;
and if the time when the vehicle speed exceeds the first speed threshold value does not exceed the second time length, switching the current light mode to a second target light mode, wherein the state of the headlight in the second target light mode is a closed state.
Specifically, the first target light mode may be a night mode or a light mode in which other headlamps are in an on state, and the second target light mode may be a daytime mode or a light mode in which other headlamps are in an off state.
When the current light mode is a dark starting mode, the vehicle is just started and needs to be started at T 1 And selecting one light mode to switch according to the environment of the vehicle in time. When the vehicle is in the transition zone, whether the headlight needs to be turned on or not can be further judged according to the vehicle speed; the transition section has certain environment brightness, the driving safety can be ensured without turning on a headlight when the vehicle runs at a low speed, and meanwhile, the energy source can be saved; when driving at high speed, the driving safety may be affected by lower ambient brightness, and the headlight may be turned on to provide additional illumination.
In order to more accurately determine whether the vehicle is in a high-speed running state, a first speed threshold (V 1 ) And a second time period (T 2 ) To assist in the determination. Example(s)For example, T for turning on light in dark start mode 1 In the time, if the vehicle speed exceeds V 1 Is longer than T 2 The vehicle is considered to be in a high-speed running state, and the dark start mode is switched to the night mode. T for turning on light in dark start mode 1 In the time, if the vehicle speed exceeds V 1 Not exceeding T 2 The vehicle is not considered to be in the high-speed driving state, and the dark start mode is maintained at T 1 After the time, automatically switching to a daytime mode; wherein T is 2 Less than T 1 In order to ensure that the vehicle can switch to the corresponding target light mode in time in the dark starting mode.
In some embodiments, as illustrated in fig. 3, when the current light mode is a daytime mode, the target light mode that the daytime mode can switch includes a night mode and a tunnel mode, and the states of the headlight in the night mode and the tunnel mode are both on states; when the ambient brightness of the vehicle is in a transition zone, the switching rule of the tunnel mode to the daytime mode and the switching rule of the night mode to the daytime mode are different; the switching the current light mode to the corresponding target light mode based on the change trend of the vehicle speed and/or the ambient brightness comprises the following steps:
if the change trend of the ambient brightness is changed from bright to dark and the change speed does not exceed the change threshold, switching the current light mode to a night mode under the condition that the time when the vehicle speed exceeds the second speed threshold exceeds a third time period or the time when the vehicle speed does not exceed the second speed threshold exceeds a fourth time period;
And if the change trend of the ambient brightness is from bright to dark and the change speed exceeds the change threshold, switching the current light mode to a tunnel mode.
Specifically, the trend of the ambient brightness can be calculated according to the ambient brightness change in a period of time, and the trend of the ambient brightness change includes gradually increasing the ambient brightness (from dark to bright) and gradually decreasing the ambient brightness (from bright to dark). If the change trend of the ambient brightness is changed from dark to bright, for example, the vehicle is in a dawn time, the night mode is just switched to the daytime mode, the ambient brightness is higher and higher, the light demand is lower and lower, the daytime mode can be continuously maintained, and the light mode is not switched; if the change trend of the ambient brightness is from bright to dark, for example, the vehicle is in a dusk moment, the ambient brightness is lower and lower, the requirement for the light is higher and higher, and the light mode of switching to the state of the headlight to the on state can be selected.
When the change trend of the ambient brightness is from dark to bright or from bright to dark, the change speed (rate) of the brightness, that is, the change value of the ambient brightness per unit time is also referred to. In different scene environments, the change trend and the change speed of the ambient brightness may be different, and the current environment of the vehicle can be more accurately judged according to the change trend and the change speed of the ambient brightness, so that a more proper light mode is used. For example, at the time of dusk, the ambient brightness is changed from bright to dark slowly, the ambient brightness is changed from daytime to transition slowly, and then the ambient brightness is changed from transition to nighttime slowly, so that the change speed is low; when entering a place such as a tunnel, the ambient brightness changes rapidly from bright to dark, and the night section is entered from the daytime section in a short period of time.
The natural illumination change and the place environment illumination change can be distinguished by presetting a change threshold value, and when the change trend of the environment brightness is changed from bright to dark and the change speed does not exceed the change threshold value, the vehicle is possibly in the natural illumination environment, for example, the time of dusk or the weather is changed from sunny to cloudy; when the trend of the change of the ambient brightness is changed from bright to dark and the change speed exceeds the change threshold value, the vehicle is possibly driven into a place with insufficient illumination, such as a tunnel or an underground garage. Therefore, the vehicle can be selectively switched from the daytime mode to the night mode or the tunnel mode according to the change trend and the change speed of the ambient brightness, and the switching of the light mode is more intelligent.
In some embodiments, in the transition interval, when the trend of change in ambient brightness is from bright to dark and the change speed does not exceed the change threshold, the vehicle will switch from daytime mode to nighttime mode. Because the change speed of the ambient brightness is slower, in order to switch the light mode at a more appropriate time to balance the driving safety and the energy efficiency, the switching time of the light mode can be determined according to the vehicle speed. When the vehicle speed is higher, a shorter switching time can be set, and the vehicle is switched from a daytime mode to a night mode after running at a high speed for a shorter time, so that the headlight illumination is started in advance, and the running safety is ensured; when the vehicle speed is lower, a longer switching time can be set, and the vehicle is switched from a daytime mode to a night mode after running at a low speed for a longer time, so that a headlight is turned on later, and energy is saved.
In order to more accurately determine whether the vehicle satisfies the switching time from the daytime mode to the nighttime mode, a second speed threshold (V 2 ) To assist in the determination. At vehicle speeds exceeding V 2 When the vehicle is considered to be in a high-speed running state, the third period (T 3 ) As the switching time, the vehicle speed exceeds V 2 Time of time exceeding T 3 Thereafter, the daytime mode is switched to the nighttime mode. At a vehicle speed not exceeding V 2 When the vehicle is considered to be in a low-speed running state, the fourth time period (T 4 ) As the switching time, the vehicle speed does not exceed V 2 Time of time exceeding T 4 Thereafter, the daytime mode is switched to the nighttime mode. Wherein T is 3 Less than T 4 So as to ensure that the headlight can be started in advance when the vehicle runs at high speed and increase the driving safety.
In some embodiments, the vehicle may change frequently due to road change, for which reason, when it is determined that the vehicle is in a transition zone and the change trend of ambient brightness is from bright to dark and the change speed does not exceed the change threshold, the calculation of the switching time from daytime mode to nighttime mode may be started, and the maximum switching time T may be set X Judging at T X In the time, the vehicle speed exceeds V 2 Whether or not the time of (2) exceeds T 3 The method comprises the steps of carrying out a first treatment on the surface of the If the vehicle speed exceeds V 2 Is longer than T 3 Then at the vehicle speed exceeding V 2 Is longer than T 3 Is switched from daytime mode to nighttime mode; if the vehicle speed exceeds V 2 Not exceeding T 3 Then pass through T X After time, the daytime mode is switched to the nighttime mode. Wherein T is 3 Less than T X 。
In some embodiments, the vehicle will switch from daytime mode to tunnel mode when the trend of change in ambient brightness is from bright to dark and the speed of change exceeds a change threshold. Because the change speed of the ambient brightness is faster, the ambient brightness has a larger influence on the driving safety, and in order to ensure the driving safety, the headlight needs to be turned on in advance for illumination. For example, when entering a tunnel, a lamp needs to be turned on in advance, so that driving safety is ensured.
In order to switch the light mode at a suitable timing, the light mode may be switched from the daytime mode to the tunnel mode when it is determined that the ambient brightness is lower than the daytime threshold after it is determined that the change trend of the ambient brightness is changed from bright to dark and the change speed exceeds the change threshold. In some embodiments, the timing of switching from daytime mode to tunnel mode may also be determined by calculating the distance into the tunnel. Since the abrupt change of the ambient brightness occurs at the entrance and exit of the tunnel, when it is determined that the trend of the change of the ambient brightness is changed from bright to dark and the change speed exceeds the change threshold value, the calculation of the duration T of the abrupt change of the ambient brightness is started S (calculated starting from the point when the change speed exceeds the change threshold value), calculated at T S The distance L travelled by the vehicle is the length T of time the vehicle enters the tunnel S The distance L is gradually increased, and when the distance L exceeds the preset tunnel distance and the ambient brightness is lower than the daytime threshold value, the daytime mode is switched to the tunnel mode.
In some embodiments, exemplary, as shown in fig. 3, when the current light mode is a night mode, the target light mode that the night mode may switch to includes a daytime mode; the switching the current light mode to the corresponding target light mode based on the change trend of the vehicle speed and/or the ambient brightness comprises the following steps:
and if the change trend of the ambient brightness is changed from dark to bright, switching the current light mode to the daytime mode under the condition that the time when the vehicle speed exceeds a third speed threshold exceeds a fifth time period or the time when the vehicle speed does not exceed the third speed threshold exceeds a sixth time period.
Because the headlight is in an on state in the night mode, the light requirements can be met when the headlight enters the tunnel and other scenes, and therefore the night mode only needs to judge when the headlight needs to be turned off to switch to the daytime mode. The night mode to day mode is similar to the day mode to night mode. When the change trend of the ambient brightness is changed from dark to bright in the transition section of the vehicle, the vehicle is switched from the night mode to the daytime mode; when the vehicle speed is higher, a longer switching time can be set, and after the vehicle runs at a high speed for a longer time, the vehicle is switched from a night mode to a daytime mode so as to delay turning off the headlight, thereby ensuring the driving safety; when the vehicle speed is low, a short switching time can be set, and the night mode is switched to the daytime mode after the vehicle runs at a low speed for a short time, so that the headlight is turned off in advance, and energy is saved.
In order to more accurately determine whether the vehicle satisfies the switching time from the night mode to the daytime mode, a third speed threshold (V 3 ) To assist in the determination. At vehicle speeds exceeding V 3 When the vehicle is considered to be in the high-speed running state, the fifth period (T 5 ) As the switching time, the vehicle speed exceeds V 3 Time of time exceeding T 5 Thereafter, the night mode is switched to the daytime mode. At a vehicle speed not exceeding V 3 When the vehicle is considered to be in the low-speed running state, the sixth period (T 6 ) As the switching time, the vehicle speed does not exceed V 3 Time of time exceeding T 6 Thereafter, the night mode is switched to the daytime mode. Wherein T is 5 Greater than T 6 So as to ensure that the time for turning off the headlight can be delayed when the vehicle is running at high speed and increase the driving safety.
In some embodiments, the vehicle may change frequently due to road change, for which reason, when it is determined that the vehicle is in a transition zone and the trend of change in ambient brightness is to be changed from dark to bright, the calculation of the switching time from night mode to daytime mode may be started, and the longest switching time T may be set Y Judging at T Y Within the time, the vehicle speed does not exceed V 3 Whether or not the time of (2) exceeds T 6 The method comprises the steps of carrying out a first treatment on the surface of the If the vehicle speed does not exceed V 3 Is longer than T 6 Then the vehicle speed does not exceed V 3 Is longer than T 6 Is switched from night mode to daytime mode; if carThe speed does not exceed V 3 Not exceeding T 6 Then pass through T Y After time, the night mode is switched to the daytime mode. Wherein T is 6 Less than T Y 。
The speed threshold V 1 、V 2 And V 3 The speed may be the same or different, and the specific setting is not particularly limited herein according to the specific implementation.
In some embodiments, as illustrated in fig. 3, exemplary, when the current light mode is a tunnel mode, the target light modes that the tunnel mode can switch to include a daytime mode and a nighttime mode; the switching the current light mode to the corresponding target light mode based on the change trend of the vehicle speed and/or the ambient brightness comprises the following steps:
if the change trend of the ambient brightness is changed from dark to bright and the ambient brightness reaches a tunnel brightness threshold, switching the current light mode to the daytime mode;
if the change trend of the ambient brightness is changed from dark to bright and the time when the ambient brightness does not reach the tunnel brightness threshold exceeds a seventh duration, switching the current light mode to the night mode;
The tunnel luminance threshold is determined based on the ambient luminance when the daytime mode is switched to the tunnel mode.
Specifically, in the tunnel mode, if the trend of the ambient brightness is to be changed from dark to bright, it is indicated that the vehicle may be leaving a place (such as a tunnel or an underground parking garage) with insufficient illumination. Because the change of the ambient brightness is quick when the vehicle leaves the place with insufficient illumination, the change trend of the ambient brightness can be rapidly judged according to the ambient brightness before entering the tunnel mode, and whether the light mode is switched can be rapidly determined. When the daytime mode is switched to the tunnel mode, an ambient brightness value at the time of switching the mode may be recorded, and the value may be used as a tunnel brightness threshold value, which is in a transition section (may be a daytime threshold value or a night threshold value). If the ambient brightness of the vehicle when leaving the place with insufficient illumination can reach the tunnel brightness threshold, the environment is consistent with the environment before entering the tunnel mode, and the vehicle can be directly switched from the tunnel mode to the daytime mode.
For example, the ambient brightness before the vehicle enters the tunnel is in a daytime zone, the ambient brightness is rapidly reduced when entering the tunnel, and the tunnel mode is switched to when the vehicle enters a certain ambient brightness in a transition zone, and the ambient brightness value is recorded as a tunnel brightness threshold value; after the vehicle exits the tunnel, the tunnel mode is switched to daytime mode after the ambient brightness reaches the tunnel brightness threshold again.
If the ambient brightness of the vehicle when leaving the place with insufficient illumination can not reach the tunnel brightness threshold after the seventh time period (T7), it is indicated that the environment where the vehicle is located is lower than the ambient brightness before entering the tunnel mode, and the natural environment may change, for example, the night or weather change is about to be entered, the tunnel mode may be switched to the night mode, and then a switching rule of the night mode is adopted to determine when to switch back to the daytime mode.
According to the technical scheme, the current light mode and the external environment brightness of the vehicle are obtained, when the environment brightness is larger than the night threshold and smaller than the daytime threshold, the vehicle can be automatically switched to the corresponding target light mode according to the change trend of the vehicle speed and/or the environment brightness, the driving safety can be improved, the balance of energy efficiency is realized, and the light control requirements of more application scenes are met.
Fig. 5 is a schematic structural diagram of a vehicle light control device according to an embodiment of the present application.
Illustratively, as shown in FIG. 5, the apparatus 300 includes:
acquisition module 310: the method comprises the steps of acquiring a current light mode of a vehicle and the ambient brightness outside the vehicle;
the first switching module 320: and the current light mode is switched to a corresponding target light mode based on the vehicle speed and/or the change trend of the environment brightness when the environment brightness is larger than a night threshold and smaller than a daytime threshold.
In some possible embodiments, as shown in fig. 6, the apparatus 300 further includes an initialization module 330, where the initialization module 330 is configured to:
when the vehicle is started, initializing the current light mode into a daytime mode if the ambient brightness is larger than or equal to the daytime threshold;
initializing the current light mode to a dark start mode if the ambient brightness is less than the daytime threshold;
wherein the state of the headlight in the daytime mode is a closed state; and the state of the headlight in the dark starting mode is continuously started for a first time length.
In some possible embodiments, when the current light mode is the dark start mode, the first switching module 320 is specifically configured to, when the ambient brightness is greater than a night threshold and less than a daytime threshold:
if the time when the vehicle speed exceeds the first speed threshold exceeds the second time, switching the current light mode to a first target light mode, wherein the state of a headlight in the first target light mode is an on state; the method comprises the steps of carrying out a first treatment on the surface of the
And if the time when the vehicle speed exceeds the first speed threshold value does not exceed the second time length, switching the current light mode to a second target light mode, wherein the state of the headlight in the second target light mode is a closed state.
In some possible embodiments, when the current light mode is the daytime mode, the first switching module 320 is specifically configured to, when the ambient brightness is greater than a night time threshold and less than a daytime threshold:
if the change trend of the ambient brightness is changed from bright to dark and the change speed does not exceed the change threshold, switching the current light mode to a night mode under the condition that the time when the vehicle speed exceeds the second speed threshold exceeds a third time period or the time when the vehicle speed does not exceed the second speed threshold exceeds a fourth time period;
if the change trend of the ambient brightness is from bright to dark and the change speed exceeds the change threshold, switching the current light mode to a tunnel mode;
wherein, the states of the headlight in the tunnel mode and the night mode are both on states; when the ambient brightness is greater than the night threshold and less than the daytime threshold, the tunnel mode is switched to the daytime mode with a different switching rule from the night mode to the daytime mode.
In some possible embodiments, when the current light mode is the night mode, the first switching module 320 is specifically configured to, when the ambient brightness is greater than a night threshold and less than a daytime threshold:
And if the change trend of the ambient brightness is changed from dark to bright, switching the current light mode to the daytime mode under the condition that the time when the vehicle speed exceeds a third speed threshold exceeds a fifth time period or the time when the vehicle speed does not exceed the third speed threshold exceeds a sixth time period.
In some possible embodiments, when the current light mode is the tunnel mode, the first switching module 320 is specifically configured to, when the ambient brightness is greater than a night threshold and less than a daytime threshold:
if the change trend of the ambient brightness is changed from dark to bright and the ambient brightness reaches a tunnel brightness threshold, switching the current light mode to the daytime mode;
if the change trend of the ambient brightness is changed from dark to bright and the time when the ambient brightness does not reach the tunnel brightness threshold exceeds a seventh duration, switching the current light mode to the night mode;
the tunnel luminance threshold is determined based on the ambient luminance when the daytime mode is switched to the tunnel mode.
In some possible embodiments, as shown in fig. 6, the apparatus 300 further includes a second switching module 340, where the second switching module 340 is configured to:
When the ambient brightness is less than or equal to a night threshold, setting the current light mode as a third target light mode, wherein the state of a headlight in the third target light mode is an on state;
and when the ambient brightness is greater than or equal to a daytime threshold, setting the current light mode as a fourth target light mode, wherein the state of the headlight in the fourth target light mode is a closed state.
According to the technical scheme, the current light mode and the external environment brightness of the vehicle are obtained, when the environment brightness is larger than the night threshold and smaller than the daytime threshold, the vehicle can be automatically switched to the corresponding target light mode according to the change trend of the vehicle speed and/or the environment brightness, the driving safety can be improved, the balance of energy efficiency is realized, and the light control requirements of more application scenes are met.
Fig. 7 is a schematic structural diagram of a vehicle according to an embodiment of the present application.
Illustratively, as shown in FIG. 7, the vehicle 400 includes: the system comprises a memory 410 and a processor 420, wherein executable program codes 411 are stored in the memory 410, and the processor 420 is used for calling and executing the executable program codes 411 to execute a vehicle light control method.
In this embodiment, the vehicle may be divided into functional modules according to the above method example, for example, each functional module may be corresponding to a specific functional module, or two or more functions may be integrated into one processing module, where the integrated modules may be implemented in a hardware form. It should be noted that, in this embodiment, the division of the modules is schematic, only one logic function is divided, and another division manner may be implemented in actual implementation.
In the case of dividing each function module with corresponding each function, the vehicle may include: an acquisition module, a first switching module, and the like. It should be noted that, all relevant contents of each step related to the above method embodiment may be cited to the functional description of the corresponding functional module, which is not described herein.
The vehicle provided in the present embodiment is used for executing the above-mentioned vehicle light control method, so that the same effects as those of the implementation method can be achieved.
In case an integrated unit is employed, the vehicle may comprise a processing module, a memory module. The processing module can be used for controlling and managing the actions of the vehicle. The memory module may be used to support the vehicle in executing associated program code and data, etc.
Wherein the processing module may be a processor or controller that may implement or execute the various exemplary logic blocks, modules and circuits described in connection with the present disclosure. A processor may also be a combination of computing functions, e.g., including one or more microprocessors, digital signal processing (digital signal processing, DSP) and microprocessor combinations, etc., and a memory module may be a memory.
The present embodiment also provides a computer-readable storage medium having stored therein computer program code which, when run on a computer, causes the computer to perform the above-described related method steps to implement a vehicle light control method in the above-described embodiments.
The present embodiment also provides a computer program product which, when run on a computer, causes the computer to perform the above-described related steps to implement a vehicle light control method in the above-described embodiments.
In addition, the vehicle provided by the embodiment of the application can be a chip, a component or a module, and the vehicle can comprise a processor and a memory which are connected; the memory is used for storing instructions, and the processor can call and execute the instructions when the vehicle runs, so that the chip executes one of the vehicle light control methods in the embodiment.
The vehicle, the computer readable storage medium, the computer program product or the chip provided in this embodiment are used to execute the corresponding method provided above, so that the benefits achieved by the method can refer to the benefits in the corresponding method provided above, and are not repeated herein.
It will be appreciated by those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional modules is illustrated, and in practical application, the above-described functional allocation may be performed by different functional modules according to needs, i.e. the internal structure of the apparatus is divided into different functional modules to perform all or part of the functions described above.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative; for example, the division of modules or units is only one logic function division, and other division modes can be adopted in actual implementation; for example, multiple units or components may be combined or may be integrated into another device, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices, or units, which may be in electrical, mechanical, or other forms.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the application is subject to the protection scope of the claims.
Claims (10)
1. A vehicle light control method, the method comprising:
acquiring a current light mode of a vehicle and the ambient brightness outside the vehicle;
and when the ambient brightness is greater than a night threshold and less than a daytime threshold, switching the current light mode to a corresponding target light mode based on the vehicle speed and/or the change trend of the ambient brightness.
2. The method of claim 1, wherein the method further comprises:
when the vehicle is started, initializing the current light mode into a daytime mode if the ambient brightness is larger than or equal to the daytime threshold;
initializing the current light mode to a dark start mode if the ambient brightness is less than the daytime threshold;
wherein the state of the headlight in the daytime mode is a closed state; and the state of the headlight in the dark starting mode is continuously started for a first time length.
3. The method according to claim 2, wherein when the current light mode is the dark start mode, the switching the current light mode to the corresponding target light mode based on the vehicle speed and/or the trend of the change in the ambient brightness includes:
if the time when the vehicle speed exceeds the first speed threshold exceeds the second time, switching the current light mode to a first target light mode, wherein the state of a headlight in the first target light mode is an on state;
and if the time when the vehicle speed exceeds the first speed threshold value does not exceed the second time length, switching the current light mode to a second target light mode, wherein the state of the headlight in the second target light mode is a closed state.
4. The method according to claim 2, wherein when the current light mode is the daytime mode, the switching the current light mode to the corresponding target light mode based on the vehicle speed and/or the trend of the change in the ambient brightness, comprises:
if the change trend of the ambient brightness is changed from bright to dark and the change speed does not exceed the change threshold, switching the current light mode to a night mode under the condition that the time when the vehicle speed exceeds the second speed threshold exceeds a third time period or the time when the vehicle speed does not exceed the second speed threshold exceeds a fourth time period;
If the change trend of the ambient brightness is from bright to dark and the change speed exceeds the change threshold, switching the current light mode to a tunnel mode;
wherein, the states of the headlight in the tunnel mode and the night mode are both on states; when the ambient brightness is greater than the night threshold and less than the daytime threshold, the tunnel mode is switched to the daytime mode with a different switching rule from the night mode to the daytime mode.
5. The method of claim 4, wherein when the current light mode is the night mode, the switching the current light mode to the corresponding target light mode based on the vehicle speed and/or the trend of the change in the ambient brightness comprises:
and if the change trend of the ambient brightness is changed from dark to bright, switching the current light mode to the daytime mode under the condition that the time when the vehicle speed exceeds a third speed threshold exceeds a fifth time period or the time when the vehicle speed does not exceed the third speed threshold exceeds a sixth time period.
6. The method according to claim 4, wherein when the current light mode is the tunnel mode, the switching the current light mode to the corresponding target light mode based on the vehicle speed and/or the trend of the change in the ambient brightness includes:
If the change trend of the ambient brightness is changed from dark to bright and the ambient brightness reaches a tunnel brightness threshold, switching the current light mode to the daytime mode;
if the change trend of the ambient brightness is changed from dark to bright and the time when the ambient brightness does not reach the tunnel brightness threshold exceeds a seventh duration, switching the current light mode to the night mode;
the tunnel luminance threshold is determined based on the ambient luminance when the daytime mode is switched to the tunnel mode.
7. The method of claim 1, wherein after said obtaining the current light pattern of the vehicle and the ambient brightness outside the vehicle, the method further comprises:
when the ambient brightness is less than or equal to a night threshold, setting the current light mode as a third target light mode, wherein the state of a headlight in the third target light mode is an on state;
and when the ambient brightness is greater than or equal to a daytime threshold, setting the current light mode as a fourth target light mode, wherein the state of the headlight in the fourth target light mode is a closed state.
8. A vehicle light control apparatus, the apparatus comprising:
The acquisition module is used for acquiring the current light mode of the vehicle and the environment brightness outside the vehicle;
and the first switching module is used for switching the current light mode to a corresponding target light mode based on the vehicle speed and/or the change trend of the environment brightness when the environment brightness is larger than a night threshold and smaller than a daytime threshold.
9. A vehicle, characterized in that the vehicle comprises:
a memory for storing executable program code;
a processor for calling and running the executable program code from the memory, causing the vehicle to perform the method of any one of claims 1 to 7.
10. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program which, when executed, implements the method according to any of claims 1 to 7.
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| CN202310632530.7A CN116572824A (en) | 2023-05-31 | 2023-05-31 | Vehicle light control method and device, vehicle and storage medium |
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| CN202310632530.7A CN116572824A (en) | 2023-05-31 | 2023-05-31 | Vehicle light control method and device, vehicle and storage medium |
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