A brake light control method, device, vehicle and readable storage medium

Abstract

The application provides a brake light control method and device, a vehicle and a readable storage medium, and relates to the technical field of vehicles. The method comprises the following steps: detecting the rear of the current vehicle to obtain a detection result in the case that the current vehicle enters a parking state; adjusting the brightness of the brake light of the current vehicle according to the vehicle state and target parameters of other vehicles when the detection result indicates that other vehicles exist behind the current vehicle; and reducing the brightness of the brake light when the detection result indicates that no other vehicles exist behind the current vehicle. In the embodiment of the application, the influence of the brake light on the driver in the rear vehicle can be reduced by adjusting the brightness of the brake light in the case that the current vehicle enters the parking state, so that the probability of traffic accidents can be reduced, and the safety and reliability of the vehicle can be improved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more specifically, to a brake light control method, apparatus, vehicle, and readable storage medium in the field of vehicle technology. Background Technology

[0002] Currently, most vehicles are equipped with an automatic parking function. Vehicles with an automatic parking function will automatically remain stationary after braking to a stop and the brake is released. This reduces the difficulty of driving the vehicle and improves vehicle safety.

[0003] In related technologies, when a vehicle has an automatic parking function, the brake lights turn on when the brake is applied and remain constantly lit after the automatic parking function is activated. When the brake lights remain constantly lit, it may impair the visibility of drivers in other vehicles behind the vehicle, potentially leading to traffic accidents. Summary of the Invention

[0004] This application provides a brake light control method, device, vehicle, and readable storage medium. The method provided by this application can reduce the impact of brake lights on drivers in vehicles behind when the vehicle is parked.

[0005] Firstly, a brake light control method is provided, the method comprising:

[0006] With the vehicle currently in a parked state, a detection is performed behind the vehicle to obtain the detection result;

[0007] If the detection result indicates that there are other vehicles behind the current vehicle, then the vehicle status and target parameters of the other vehicles are obtained; wherein, the vehicle status is a driving state or a stationary state, and the target parameters include the distance between the other vehicles and the current vehicle and / or the target duration, wherein the target duration is the duration for which the other vehicles remain stationary or driving.

[0008] Adjust the brightness of the brake lights of the current vehicle according to the vehicle status and the target parameters;

[0009] Alternatively, if the detection result indicates that there are no other vehicles behind the current vehicle, the brightness of the brake lights is reduced.

[0010] In this embodiment, when the vehicle is in a parked state, a detection is performed behind the vehicle to obtain a detection result. If the detection result indicates that there are other vehicles behind the vehicle, the brightness of the brake lights of the current vehicle is adjusted according to the vehicle status and target parameters of the other vehicles. Conversely, if the detection result indicates that there are no other vehicles behind the vehicle, the brightness of the brake lights is reduced. Specifically, when the vehicle is in a parked state and there are other vehicles behind it, the vehicle status and target parameters of the rear vehicles accurately represent the brake light brightness required by the drivers in the rear vehicles at that moment. Adjusting the brightness of the brake lights based on the vehicle status and target parameters of the rear vehicles allows the brake light brightness to match the brightness required by the drivers in the rear vehicles. This not only alerts the drivers in the rear vehicles through the brake lights but also reduces the impact of the brake lights on them. Furthermore, reducing the impact of the brake lights on the drivers in the rear vehicles reduces the probability of the current vehicle being rear-ended, thereby reducing the probability of traffic accidents and improving the safety and reliability of the current vehicle.

[0011] Furthermore, this application reduces the brightness of the brake lights when the vehicle is in a parked state and there are no other vehicles behind it. Since there are no other vehicles behind it at this time, the probability of the vehicle being rear-ended is low. Reducing the brightness of the brake lights will not only not increase the probability of the vehicle being rear-ended, but will also shorten the duration of the brake lights running at high brightness, thereby reducing the damage to the brake lights caused by the parked state and extending the service life of the brake lights.

[0012] Optionally, the brake light includes a low-position brake light; if the target parameter includes the distance, adjusting the brightness of the brake light of the current vehicle according to the vehicle state and the target parameter includes: when the vehicle state is the driving state, reducing the brightness of the low-position brake light according to the distance, wherein the distance is positively correlated with the brightness of the low-position brake light.

[0013] In this embodiment, when there are other vehicles traveling behind the current vehicle, the brightness of the low-mounted brake light is reduced according to the distance between the other vehicles and the current vehicle. The brightness of the low-mounted brake light decreases continuously as the distance between the other vehicles and the current vehicle decreases. This not only does not increase the probability of the current vehicle being rear-ended, but also protects the low-mounted brake light, thereby extending its service life.

[0014] Optionally, the brake light further includes a high-mounted brake light; after reducing the brightness of the low-mounted brake light according to the distance, the method further includes: if it is detected that the other vehicle changes from the driving state to the stationary state, then obtaining a first duration for which the other vehicle is in the stationary state; if the first duration reaches a first preset duration, adjusting the brightness of the low-mounted brake light to a first target brightness, wherein the first target brightness is the lowest among a plurality of preset luminous brightness values ​​of the low-mounted brake light; and obtaining a second duration for which the low-mounted brake light operates at the first target brightness; if the second duration reaches a second preset duration, turning off the low-mounted brake light; and adjusting the brightness of the high-mounted brake light to a second target brightness; wherein the second target brightness is the lowest among a plurality of preset luminous brightness values ​​of the high-mounted brake light.

[0015] In this embodiment, when other vehicles behind the current vehicle come to a standstill and remain stationary for a certain period, the brightness of the low-mounted brake light is promptly reduced to the minimum luminous level. This reduces damage to the low-mounted brake light during parking and extends its lifespan. Furthermore, the reduced brightness of the high-mounted brake light serves as a warning to following vehicles, thus lowering the probability of a rear-end collision and further reducing damage to the high-mounted brake light during parking, also extending its lifespan.

[0016] Optionally, the brake lights include a low-position brake light and a high-position brake light; if the target duration is the duration during which the other vehicles remain stationary, adjusting the brightness of the brake lights of the current vehicle according to the vehicle status and the target parameters includes: when the other vehicles are stationary, if the target duration reaches a third preset duration, turning off the low-position brake light, and adjusting the brightness of the high-position brake light to a second target brightness; wherein, the second target brightness is the lowest brightness among a plurality of preset brightness values ​​of the high-position brake light.

[0017] In this embodiment, when the current vehicle enters a parking state and other vehicles behind it remain stationary relative to the current vehicle for a certain period of time, the low-mounted brake light is turned off and the brightness of the high-mounted brake light is reduced. This not only reduces the damage to the low-mounted and high-mounted brake lights caused by the parking state and extends their service life, but also, by reducing the brightness of the high-mounted brake light, it can alert vehicles behind, thus reducing the probability of the current vehicle being rear-ended.

[0018] Optionally, after adjusting the brightness of the high-mounted brake light to the second target brightness, the method further includes: obtaining a third duration for which the high-mounted brake light operates at the second target brightness; and, if the third duration reaches a fourth preset duration, turning off the high-mounted brake light and turning on the position lights of the current vehicle.

[0019] In this embodiment of the application, after the high-mounted brake light is turned off, the position light of the current vehicle can be turned on. The position light can display the current vehicle's position and remind the current vehicle of vehicles that may appear behind it, which can significantly reduce the probability of the current vehicle being rear-ended.

[0020] Optionally, the step of reducing the brightness of the brake light if the detection result indicates that there are no other vehicles behind the current vehicle includes: if the detection result indicates that there are no other vehicles behind the current vehicle, reducing the brightness of the brake light to a third target brightness, wherein the third target brightness is the lowest brightness among a plurality of preset brightness values ​​of the brake light.

[0021] In this embodiment, when the vehicle is in a parking state and there are no other vehicles behind it, the brightness of the brake lights is reduced to the minimum brightness. This can reduce the damage to the brake lights in the parking state, thereby extending the service life of the brake lights.

[0022] Optionally, after reducing the brightness of the brake light to the third target brightness, the method further includes: obtaining a fourth duration for which the brake light operates at the third target brightness, and detecting whether other vehicles appear behind the current vehicle; if no other vehicles are detected behind the current vehicle and the fourth duration reaches a fifth preset duration, turning off the brake light.

[0023] In this embodiment, after reducing the brightness of the brake lights, if no other vehicles are detected behind the current vehicle within a certain period of time, the brake lights can be directly turned off. This allows the brake lights to be turned off in time when there is no risk of a rear-end collision, thereby reducing damage to the brake lights and extending their service life.

[0024] Secondly, a brake light control device is provided, the device comprising:

[0025] The detection module is used to detect the area behind the current vehicle when the vehicle is in a parking state and obtain the detection result.

[0026] The acquisition module is used to acquire the vehicle status and target parameters of the other vehicle if the detection result indicates that there is another vehicle behind the current vehicle; wherein the vehicle status is a driving state or a stationary state, and the target parameters include the distance between the other vehicle and the current vehicle and / or the target duration, wherein the target duration is the duration for which the other vehicle remains stationary or driving.

[0027] An adjustment module is used to adjust the brightness of the brake lights of the current vehicle according to the vehicle status and the target parameters; or, if the detection result indicates that there are no other vehicles behind the current vehicle, the brightness of the brake lights is reduced.

[0028] Thirdly, a vehicle is provided, the vehicle comprising:

[0029] Memory, used to store executable program code;

[0030] A processor is configured to call and run the executable program code from the memory, causing the vehicle to perform the method described in the first aspect above.

[0031] Fourthly, a computer program product is provided, comprising: computer program code, which, when run on a computer, causes the computer to perform the methods described in the first aspect or any possible implementation thereof.

[0032] Fifthly, a computer-readable storage medium is provided that stores computer program code, which, when executed on a computer, causes the computer to perform the methods described in the first aspect or any possible implementation thereof. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of a vehicle taillight provided in an embodiment of this application;

[0034] Figure 2 This is a schematic diagram illustrating the control principle of vehicle lights provided in an embodiment of this application;

[0035] Figure 3 This is a flowchart illustrating the steps of a brake light control method provided in an embodiment of this application;

[0036] Figure 4 This is a schematic flowchart of a brake light control method provided in an embodiment of this application;

[0037] Figure 5 This is a schematic diagram of the structure of a brake light control device provided in an embodiment of this application;

[0038] Figure 6 This is a schematic diagram of the structure of a vehicle provided in an embodiment of this application. Detailed Implementation

[0039] The technical solutions in this application will be clearly and thoroughly described below with reference to the accompanying drawings. In the description of the embodiments of this application, unless otherwise stated, " / " means "or," for example, A / B can mean A or B. "And / or" in the text is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, in the description of the embodiments of this application, "multiple" refers to two or more than two.

[0040] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0041] Currently, to reduce the difficulty of driving and improve vehicle safety, vehicles are generally equipped with an automatic parking function. When a vehicle has an automatic parking function, the brake lights are turned on when the brake pedal is pressed. When the vehicle stops, the automatic parking function will put the vehicle into a parking state, keeping it stationary. Afterward, the brake lights will remain on until the parking state is released.

[0042] See Figure 1 , Figure 1 This is a schematic diagram of a vehicle taillight provided in an embodiment of this application. For example... Figure 1 As shown, the rear of the vehicle is equipped with a low-mounted brake light 101 and a high-mounted brake light 102, which are collectively referred to as brake lights. Brake lights are generally light-emitting diodes (LEDs). Keeping brake lights constantly on can cause damage and shorten their lifespan. Furthermore, a shortened lifespan increases the frequency of brake light replacements, indirectly increasing the vehicle's operating costs. Additionally, brake lights typically emit red light; when other vehicles are behind the vehicle, the red light emitted by the brake lights may impair the vision of other drivers, potentially leading to traffic accidents.

[0043] To address the aforementioned technical problems, this application provides a brake light control method. This method can be executed by a controller, which can be a vehicle control unit (VCU) or a body control module (BCM), or it can be a controller separately installed in the vehicle to control the individual light switches in the vehicle (hereinafter referred to as the light controller).

[0044] See Figure 2 , Figure 2 This is a schematic diagram illustrating the control principle of vehicle lights according to an embodiment of this application. The vehicle includes a low-mounted brake light 101, a high-mounted brake light 102, and position lights 103, as well as other vehicle lights. The vehicle also includes a first switch unit 201 for controlling the low-mounted brake light 101, a second switch unit 202 for controlling the high-mounted brake light 102, and a third switch unit 203 for controlling the position lights 103. The vehicle light controller is connected to the first switch unit 201 and can control the brightness of the low-mounted brake light through the first switch unit 201; the vehicle light controller is connected to the second switch unit 202 and can control the brightness of the high-mounted brake light through the second switch unit 202; and the vehicle light controller is connected to the third switch unit 203 and can control the brightness of the position lights 103 through the third switch unit 203. It should be understood that the above is only an exemplary example, and the specific control principle of the vehicle lights may include, but is not limited to, [other aspects]. Figure 2 As shown.

[0045] See Figure 3 , Figure 3 This is a flowchart illustrating the steps of a brake light control method provided in an embodiment of this application. The method can be executed by a controller and may include the following steps:

[0046] Step 301: With the current vehicle in parking mode, perform a detection on the rear of the current vehicle to obtain the detection results.

[0047] In this embodiment, after the current vehicle (i.e., the vehicle where the controller is located) is started, the controller can monitor the status of the current vehicle to determine whether the current vehicle has entered a parking state. For example, when this method is executed by the headlight controller, the headlight controller can monitor the current vehicle after the brake lights are turned on to determine whether the current vehicle has entered a parking state. For instance, when the VCU detects that the brake pedal in the current vehicle is depressed, it can send an on command to the headlight controller, notifying the headlight controller that the current vehicle has entered a braking state. The headlight controller can respond to the on command and turn on the brake lights in the current vehicle, including the high-mounted brake light and the low-mounted brake light. After the brake lights are turned on, the headlight controller begins monitoring the status of the current vehicle to determine whether the current vehicle has entered a parking state.

[0048] Simultaneously, if the VCU detects that the vehicle has stopped after the brake is applied, it can activate the automatic parking function, putting the vehicle into a parking state. After activating the automatic parking function, the VCU confirms that the vehicle is in a parking state and then sends a notification message to the headlight controller. Upon receiving the notification message, the headlight controller can confirm that the vehicle is in a parking state.

[0049] For example, when this method is executed by the VCU, the VCU can turn on the brake lights of the current vehicle when it detects that the brake pedal is depressed. Subsequently, if the VCU detects that the current vehicle has stopped, it can activate the automatic parking function, putting the current vehicle into a parking state. Simultaneously, after activating the automatic parking function, the VCU can confirm that the current vehicle is in a parking state.

[0050] When the high-mounted brake light and low-mounted brake light are turned on, they operate at normal brightness to alert other vehicles behind the vehicle. Normal brightness, also known as initial luminous brightness, is generally the maximum luminous brightness of the brake light.

[0051] For example, a radar is installed at the rear of the vehicle. This radar can detect whether there are obstacles behind the vehicle and the distance between the obstacle and the vehicle. The controller is connected to the radar. After determining that the vehicle has entered parking mode, the controller can use the radar to detect the area behind the vehicle and obtain the detection results. When the detection result indicates that there is an obstacle behind the vehicle (automatic parking function is generally activated on the road, so the obstacle can be assumed to be another vehicle), and the distance between the obstacle and the vehicle is continuously decreasing, it can be determined that there is another vehicle behind the vehicle, and that this other vehicle is in motion. Conversely, when the detection result indicates that there is an obstacle behind the vehicle, and the distance between the obstacle and the vehicle remains constant, it can be determined that there is another vehicle behind the vehicle, and that this other vehicle is stationary.

[0052] For example, a camera is installed at the rear of the vehicle, which can capture images of the area behind the vehicle. The controller is connected to the camera, and after determining that the vehicle is in a parking state, the controller can capture images of the area behind the vehicle using the camera. The controller can then perform recognition on the captured images to obtain a recognition result (i.e., a detection result). Based on the recognition result, it can determine whether there are other vehicles behind the vehicle, and whether those other vehicles are moving or stationary.

[0053] During the detection process behind the current vehicle, the controller can detect a preset range behind the current vehicle. For example, when detecting whether there are other vehicles behind the current vehicle using radar, the detection range can be set to a range of 50 meters behind the current vehicle, or the detection range can be the maximum detection range of the radar.

[0054] It should be understood that the above are merely illustrative examples, and the specific methods for determining whether the current vehicle is in a parking state and for detecting the area behind the current vehicle may include, but are not limited to, the examples above.

[0055] Step 302: If the detection result indicates that there are other vehicles behind the current vehicle, then obtain the vehicle status and target parameters of the other vehicles.

[0056] Step 303: Adjust the brightness of the brake lights of the current vehicle according to the vehicle status and target parameters.

[0057] The vehicle status is either in a moving state or a stationary state. The target parameters include the distance between the current vehicle and other vehicles and / or the target duration, where the target duration is the duration for which other vehicles remain stationary or in a moving state.

[0058] In one embodiment, when other vehicles are behind the current vehicle, the brightness of the current vehicle's brake lights can be adjusted according to the status of the other vehicles. For example, the low-mounted brake light has multiple brightness levels, each corresponding to a different preset brightness level. These preset brightness levels decrease sequentially from high to low, with the highest brightness level corresponding to the highest brightness (i.e., the initial brightness), and the lowest brightness level corresponding to the lowest brightness, which is greater than 0. When other vehicles are in motion, the controller can reduce the brightness level of the low-mounted brake light from the highest brightness level to a preset brightness level. The preset brightness level can be one of the multiple brightness levels other than the highest and lowest brightness levels, thereby reducing the brightness of the low-mounted brake light by a certain margin. Alternatively, the controller can reduce the brightness level of the low-mounted brake light from the highest brightness level to the lowest brightness level, or reduce the brightness of the low-mounted brake light to 0, thus turning it off.

[0059] For example, the low-position brake light can be steplessly adjustable. The higher the supply voltage provided to the low-position brake light, the greater its brightness, and the highest supply voltage corresponds to the initial brightness of the low-position brake light. During the adjustment of the brightness of the low-position brake light, the supply voltage can be reduced by a preset amount to reduce the brightness of the low-position brake light by a certain margin.

[0060] In the process of adjusting the brightness of the current vehicle's brake lights based on the vehicle status of other vehicles, the brightness of both the high-mounted and low-mounted brake lights can be reduced simultaneously when other vehicles are in motion. The method for adjusting the brightness of the high-mounted brake light is similar to that of the low-mounted brake light, and will not be described in detail here.

[0061] In another embodiment, when other vehicles are behind the current vehicle, the brightness of the current vehicle's brake lights can be adjusted based on the distance between the current vehicle and the other vehicles. For example, the distance between the current vehicle and other vehicles can be obtained, and the brightness of the low-mounted brake lights and / or high-mounted brake lights can be adjusted accordingly. For instance, a positive correlation between distance and brightness can be established, where the smaller the distance between the current vehicle and other vehicles, the lower the brightness of the brake lights. During the adjustment of the brake light brightness, the corresponding illumination brightness can first be determined based on the distance between the current vehicle and other vehicles, and then the brake lights can be controlled to operate at the determined illumination brightness.

[0062] In another embodiment, when other vehicles are behind the current vehicle, the brightness of the brake lights can be adjusted based on a target duration. For example, when other vehicles are in motion, the target duration is the travel time of the other vehicles, which is the duration the other vehicles remain in motion after the current vehicle enters the parking state. The travel time can be set to be negatively correlated with brightness. During the adjustment of the brake light brightness, the corresponding brightness can first be determined based on the travel time of the other vehicles, and then the brake lights can be controlled to operate at the determined brightness.

[0063] Similarly, when other vehicles are stationary, the target duration is the stationary duration of the other vehicles, which is the duration after the current vehicle enters the parking state while the other vehicles remain stationary. The stationary duration can be set to be negatively correlated with brightness. When adjusting the brake light brightness, the corresponding brightness can first be determined based on the stationary duration of the other vehicles, and then the brake lights can be controlled to operate at the determined brightness.

[0064] In another embodiment, when other vehicles are behind the current vehicle, the brightness of the current vehicle's brake lights can be adjusted based on the distance between the current vehicle and the other vehicles and the target travel time. For example, when other vehicles are in motion, the distance between the current vehicle and the other vehicles, as well as the travel time of the other vehicles, can be obtained. Then, if the travel time is less than a preset time threshold, the brake light brightness can be kept constant; if the travel time is greater than the preset time threshold, the brake light brightness can be adjusted based on the distance.

[0065] The above are merely illustrative examples; specific methods for adjusting the brightness of brake lights may include, but are not limited to, the examples described above.

[0066] Step 304: If the detection result indicates that there are no other vehicles behind the current vehicle, then reduce the brightness of the brake lights.

[0067] In one embodiment, after determining that the vehicle has entered a parking state, the controller can reduce the brightness of the low-mounted brake light if there are no other vehicles behind it. For example, when the low-mounted brake light has multiple brightness levels, the controller can control the low-mounted brake light to decrease by a preset number of brightness levels if there are no other vehicles behind it. For instance, the low-mounted brake light has six brightness levels, from highest to lowest: A, B, C, D, E, and F, where A is the highest brightness level (corresponding to the initial luminous brightness) and F is the lowest brightness level (corresponding to the lowest luminous brightness). The preset number is, for example, three; if there are no other vehicles behind it, the controller can control the brightness level of the low-mounted brake light to decrease from A to D.

[0068] In another embodiment, if it is determined that there are no other vehicles behind the current vehicle, the controller can first control the low-position brake light to operate at its initial brightness for a preset duration, and then directly turn off the low-position brake light. Alternatively, if it is determined that there are no other vehicles behind the current vehicle, the controller can first control the low-position brake light to operate at its maximum brightness for a preset duration, and then turn off the low-position brake light, thus extinguishing the low-position brake light.

[0069] In another embodiment, when it is determined that there are no other vehicles behind the current vehicle, the controller can control the brightness of the low-mounted brake light to decrease sequentially from its initial brightness level until it reaches the lowest brightness level. For example, when it is determined that there are no other vehicles behind the current vehicle, the controller can control the low-mounted brake light to decrease sequentially from the highest brightness level A to F. During the decrease, the controller can control the low-mounted brake light to operate at each brightness level for a preset duration until it is reduced to brightness level F.

[0070] The control method for the high-mounted brake light is similar to that for the low-mounted brake light, and will not be described in detail here. The specific methods for reducing the brightness of the brake light may include, but are not limited to, the examples mentioned above.

[0071] In this embodiment of the application, when the current vehicle is in a parking state, the area behind the current vehicle is detected to obtain a detection result. When the detection result indicates that there are other vehicles behind the current vehicle, the brightness of the brake lights of the current vehicle is adjusted according to the vehicle status of the other vehicles and the target parameters. When the detection result indicates that there are no other vehicles behind the current vehicle, the brightness of the brake lights is reduced.

[0072] Specifically, when the current vehicle is parked and there are other vehicles behind it, the vehicle status and target parameters of the following vehicles can accurately represent the required brake light brightness for the drivers in those vehicles at that moment. Adjusting the brightness of the current vehicle's brake lights based on the vehicle status and target parameters of the following vehicles allows the brake light brightness to match the required brightness for the drivers in the following vehicles. This not only alerts the drivers in the following vehicles through the brake lights but also reduces their impact. Furthermore, reducing the impact of the brake lights on the drivers in the following vehicles lowers the probability of the current vehicle being rear-ended, thereby reducing the probability of traffic accidents and improving the safety and reliability of the current vehicle.

[0073] Furthermore, this application reduces the brightness of the brake lights when the vehicle is in a parked state and there are no other vehicles behind it. Since there are no other vehicles behind it at this time, the probability of the vehicle being rear-ended is low. Reducing the brightness of the brake lights can shorten the duration of operation at high brightness, thereby reducing the damage to the brake lights caused by the parked state and extending the service life of the brake lights.

[0074] Optionally, if the target parameter includes distance, the step of adjusting the brightness of the current vehicle's brake lights based on the vehicle status and the target parameter may include:

[0075] When the vehicle is in motion, the brightness of the low-position brake light is reduced according to the distance, and the distance is positively correlated with the brightness of the low-position brake light.

[0076] In some embodiments, after determining that the current vehicle has entered a parking state, the controller, upon detecting the presence of other vehicles behind the current vehicle and that these other vehicles are in motion, can adjust the brightness of the low-mounted brake light based on the distance between the current vehicle and the other vehicles. For example, the maximum detection range of the radar (e.g., 50 meters) can be preset to correspond to the highest brightness level of the low-mounted brake light, and a safe distance (also called the minimum distance, e.g., 3 meters) between the current vehicle and other vehicles can be preset to correspond to the lowest brightness level of the low-mounted brake light. Furthermore, the distance between the current vehicle and other vehicles can be set to be linearly positively correlated with the brightness level of the low-mounted brake light. After detecting other vehicles behind the current vehicle via radar, the controller can obtain the distance between the current vehicle and other vehicles in real time via radar and determine the target brightness level corresponding to the distance. The smaller the distance, the lower the target brightness level. The controller can then control the low-mounted brake light to operate at the target brightness level, i.e., at the target luminous intensity corresponding to the target brightness level.

[0077] The above are merely illustrative examples; specific methods for reducing the brightness of low-position brake lights based on distance may include, but are not limited to, the examples described above.

[0078] In this embodiment, when there are other vehicles traveling behind the current vehicle, the brightness of the low-mounted brake light is reduced according to the distance between the other vehicles and the current vehicle. The brightness of the low-mounted brake light decreases continuously as the distance between the other vehicles and the current vehicle decreases. This not only does not increase the probability of the current vehicle being rear-ended, but also protects the low-mounted brake light, thereby extending its service life.

[0079] Optionally, after reducing the brightness of the low-position brake light according to the distance, the method may further include:

[0080] If other vehicles are detected to change from a moving state to a stationary state, the first duration of the other vehicles being stationary is obtained.

[0081] When the first preset duration is reached, the brightness of the low-position brake light is adjusted to a first target brightness, where the first target brightness is the lowest among multiple preset brightness levels of the low-position brake light; and,

[0082] Acquire the second duration for which the low-position brake light operates at the first target brightness;

[0083] When the second preset duration is reached, the low-position brake light is turned off.

[0084] Adjust the brightness of the high-mounted brake light to the second target brightness; wherein the second target brightness is the lowest brightness among the multiple preset brightness levels of the high-mounted brake light.

[0085] In some embodiments, after detecting the presence of another vehicle in motion behind the current vehicle and reducing the brightness of the low-mounted brake light based on the distance between the other vehicle and the current vehicle, the controller may start timing when it detects that the other vehicle has entered a stationary state (i.e., changed from a moving state to a stationary state). The timing duration is the first duration. During the timing process, if the first duration reaches (is greater than or equal to) a first preset duration, the controller may adjust the brightness of the low-mounted brake light to a first target brightness. The first target brightness is, for example, the preset luminous brightness corresponding to brightness level F, which is the lowest luminous brightness among a plurality of preset luminous brightnesses of the low-mounted brake light.

[0086] As other vehicles come to a standstill and reduce the brightness of their low-mounted brake lights to a preset first target brightness, the controller can begin timing. The timing duration is the second duration for which the low-mounted brake lights operate at the first target brightness. The controller can turn off the low-mounted brake lights when the timing duration reaches (or is greater than or equal to) the second preset duration. Simultaneously with turning off the low-mounted brake lights, the controller can reduce the brightness of the high-mounted brake lights of the current vehicle to a second target brightness, thus alerting drivers in other vehicles that have come to a standstill.

[0087] In this embodiment, when other vehicles behind the current vehicle come to a standstill and remain stationary for a certain period, the brightness of the low-mounted brake light is promptly reduced to the minimum luminous level. This reduces damage to the low-mounted brake light during parking and extends its lifespan. Furthermore, the reduced brightness of the high-mounted brake light serves as a warning to following vehicles, thus lowering the probability of a rear-end collision and further reducing damage to the high-mounted brake light during parking, also extending its lifespan.

[0088] Optionally, if the target duration is the duration during which other vehicles remain stationary, the step of adjusting the brightness of the current vehicle's brake lights based on the vehicle status and target parameters may include:

[0089] When other vehicles are stationary, if the target duration reaches the third preset duration, the low-position brake light is turned off, and the brightness of the high-position brake light is adjusted to the second target brightness; wherein, the second target brightness is the lowest brightness among the multiple preset brightness levels of the high-position brake light.

[0090] For example, after determining that the current vehicle has entered the parking state, the controller can start timing when it detects another stationary vehicle behind the current vehicle. The timing duration is the stationary duration of the other vehicle, which is also the target duration. If the other vehicle remains stationary and the timing duration reaches (greater than or equal to) a third preset duration, the low-position brake light can be directly turned off, extinguishing it. Simultaneously with turning off the low-position brake light, the controller can adjust the brightness of the high-position brake light from its highest brightness to a second target brightness.

[0091] Since the distance between the current vehicle and other vehicles is generally small, turning off the low-position brake light generally does not increase the probability of the current vehicle being rear-ended, and can significantly reduce the damage to the brake light caused by the parking state, thus extending the service life of the low-position brake light.

[0092] Optionally, during the timing process, if another vehicle is detected starting and moving in the direction of the current vehicle when the timing duration is less than the third preset duration, the brightness of the low-position brake light can be restored to its initial brightness or increased.

[0093] In this embodiment, when the current vehicle enters a parking state and other vehicles behind it remain stationary relative to the current vehicle for a certain period of time, the low-mounted brake light is turned off and the brightness of the high-mounted brake light is reduced. This not only reduces the damage to the low-mounted and high-mounted brake lights caused by the parking state and extends their service life, but also, by reducing the brightness of the high-mounted brake light, it can alert vehicles behind, thus reducing the probability of the current vehicle being rear-ended.

[0094] Optionally, after adjusting the brightness of the high-mounted brake light to the second target brightness, the method may further include:

[0095] Obtain the third duration for which the high-mounted brake light operates at the second target brightness;

[0096] When the third time period reaches the fourth preset time period, turn off the high-mounted brake light and turn on the current vehicle's position lights.

[0097] For example, after reducing the brightness of the high-mounted brake light to a second target brightness, the controller can start a timer for a third duration. Simultaneously, the controller can compare the timed duration with a fourth preset duration. If the timed duration is greater than or equal to the fourth preset duration, the controller can turn off the high-mounted brake light, extinguishing it. At the same time as turning off the high-mounted brake light, the controller can turn on the position lights in the current vehicle.

[0098] In this embodiment of the application, after the high-mounted brake light is turned off, the position light of the current vehicle can be turned on. The position light can display the current vehicle's position and remind the current vehicle of vehicles that may appear behind it, which can significantly reduce the probability of the current vehicle being rear-ended.

[0099] Optionally, if the detection result indicates that there are no other vehicles behind the current vehicle, the step of reducing the brightness of the brake lights may include:

[0100] If the detection result indicates that there are no other vehicles behind the current vehicle, the brightness of the brake lights will be reduced to the third target brightness, which is the lowest brightness among the multiple preset brightness levels of the brake lights.

[0101] In one embodiment, when the detection result indicates that there are no other vehicles behind the current vehicle, the brightness of the low-mounted brake light can be reduced to the minimum luminous brightness during the process of reducing the brightness of the low-mounted brake light. For example, if the low-mounted brake light has multiple brightness levels from A to F, the brightness level of the low-mounted brake light can be directly reduced to F. The luminous brightness corresponding to brightness level F is the third target brightness, which is also the minimum luminous brightness.

[0102] It should be understood that when the brake light is a low-position brake light, the third target brightness is the minimum luminous brightness of the low-position brake light; when the brake light is a high-position brake light, the third target brightness is the minimum luminous brightness of the high-position brake light. The minimum luminous brightness of the high-position brake light may be the same as or different from that of the low-position brake light.

[0103] When the detection results indicate that there are no other vehicles behind the current vehicle, the brightness of both the low-mounted brake light and the high-mounted brake light can be reduced simultaneously. For example, the brightness of the low-mounted brake light can be reduced to its minimum luminous intensity, and the brightness of the high-mounted brake light can be reduced to its minimum luminous intensity. Of course, it is also possible to reduce the brightness of only the low-mounted brake light or only the high-mounted brake light.

[0104] In this embodiment, when the vehicle is in a parking state and there are no other vehicles behind it, the brightness of the brake lights is reduced to the minimum brightness. This can reduce the damage to the brake lights in the parking state, thereby extending the service life of the brake lights.

[0105] Optionally, after reducing the brightness of the brake lights to the third target brightness, the method may further include:

[0106] Obtain the fourth duration of the brake lights operating at the third target brightness, and detect whether other vehicles are appearing behind the current vehicle;

[0107] If no other vehicles are detected behind the current vehicle and the fourth time period reaches the fifth preset time period, the brake lights will be turned off.

[0108] For example, when the brightness of the low-mounted brake light and / or the high-mounted brake light is reduced to the third target brightness, the controller can start timing, and the timing duration is the fourth duration. At the same time, the controller can re-detect the area behind the current vehicle to obtain the detection result. If the fourth duration is greater than or equal to the fifth preset duration, and the detection result indicates that no other vehicle is present behind the current vehicle, the controller can directly turn off the low-mounted brake light and / or the high-mounted brake light, thus extinguishing the low-mounted brake light and / or the high-mounted brake light.

[0109] Optionally, after reducing the brightness of the low-mounted brake light and / or the high-mounted brake light to the third target brightness, if the detection result indicates that other vehicles are behind the current vehicle, the controller can restore the brightness of the low-mounted brake light and / or the high-mounted brake light to the initial brightness, or increase the brightness of the low-mounted brake light and / or the high-mounted brake light by a certain amount.

[0110] In this embodiment, after reducing the brightness of the brake lights, if no other vehicles are detected behind the current vehicle within a certain period of time, the brake lights can be directly turned off. This allows the brake lights to be turned off in time when there is no risk of a rear-end collision, thereby reducing damage to the brake lights and extending their service life.

[0111] See Figure 4 , Figure 4 This is a flowchart illustrating a brake light control method provided in an embodiment of this application. The method can be executed by a controller and may include the following steps:

[0112] Step 401: Determine whether the vehicle is currently in parking mode.

[0113] In this embodiment, the controller can continuously execute step 401 during the operation of the current vehicle to determine whether the current vehicle has entered the parking state. After determining that the current vehicle has entered the parking state, the controller can execute step 402 to determine whether there are other vehicles behind the current vehicle, and if it is determined that there are no other vehicles behind the current vehicle, it can execute step 403, and if it is determined that there are other vehicles behind the current vehicle, it can execute step 404.

[0114] Step 403: Reduce the brightness of the low-position brake light to the first target brightness.

[0115] In this embodiment, after determining that the current vehicle has entered the parking state, and assuming there are no other vehicles behind the current vehicle, the controller can control the brightness of the low-mounted brake light to decrease gradually until it reaches the first target brightness. The specific process of reducing the brightness of the low-mounted brake light when there are no other vehicles behind the current vehicle can be referred to the example above, and will not be repeated here.

[0116] Step 404: Determine if other vehicles are stationary.

[0117] In this embodiment, after the controller determines that the current vehicle has entered the parking state, if it determines that there are other vehicles behind the current vehicle, it determines whether the other vehicles are in a driving state or a stationary state. If the other vehicles are in a stationary state, it executes steps 405, 406 and 407. If the other vehicles are in a driving state, it executes steps 408 and 409.

[0118] Step 405: Turn off the low-position brake light.

[0119] Step 406: Reduce the brightness of the high-mounted brake light to the second target brightness.

[0120] Step 407: Turn on the position light.

[0121] In this embodiment, when other vehicles behind the current vehicle are stationary, the controller can turn off the low-mounted brake light, reduce the brightness of the high-mounted brake light to a second target brightness, and turn on the position lights of the current vehicle. Alternatively, when other vehicles behind the current vehicle are stationary, the controller can also reduce the brightness of the low-mounted brake light to a first target brightness and reduce the brightness of the high-mounted brake light to a second target brightness.

[0122] Step 408: Determine the distance between the current vehicle and other vehicles.

[0123] Step 409: Adjust the brightness of the low-position brake light according to the distance.

[0124] In this embodiment, when other vehicles behind the current vehicle are in motion, the controller can obtain the distance between the current vehicle and other vehicles, and adjust the brightness of the low-mounted brake light accordingly. The specific process of determining the distance between the current vehicle and other vehicles and adjusting the brightness of the low-mounted brake light based on the distance can be referred to the example above, and will not be repeated here.

[0125] During the execution of steps 402 to 409, after the controller detects that the current vehicle has been released from parking, if the brightness of the low-position brake light and the high-position brake light has been reduced previously, it can control the high-position brake light and the low-position brake light to return to their initial brightness.

[0126] See Figure 5 , Figure 5 This is a schematic diagram of a brake light control device provided in an embodiment of this application. The device 500 may include:

[0127] The detection module 501 is used to detect the rear of the current vehicle when the current vehicle is in a parking state and obtain the detection result.

[0128] The acquisition module 502 is used to acquire the vehicle status and target parameters of the other vehicle if the detection result indicates that there is another vehicle behind the current vehicle; wherein, the vehicle status is a driving state or a stationary state, and the target parameters include the distance between the other vehicle and the current vehicle and / or the target duration, wherein the target duration is the duration for which the other vehicle remains stationary or driving.

[0129] The adjustment module 503 is used to adjust the brightness of the brake lights of the current vehicle according to the vehicle status and the target parameters; or, if the detection result indicates that there are no other vehicles behind the current vehicle, the brightness of the brake lights is reduced.

[0130] Optionally, the brake light includes a low-position brake light; the adjustment module 503 is specifically used to reduce the brightness of the low-position brake light according to the distance when the vehicle is in the driving state, wherein the distance is positively correlated with the brightness of the low-position brake light.

[0131] Optionally, the brake light further includes a high-mounted brake light; the adjustment module 503 is further configured to, after reducing the brightness of the low-mounted brake light according to the distance, if it detects that another vehicle has changed from the driving state to the stationary state, obtain a first duration during which the other vehicle is in the stationary state; if the first duration reaches a first preset duration, adjust the brightness of the low-mounted brake light to a first target brightness, wherein the first target brightness is the lowest among a plurality of preset luminous brightness values ​​of the low-mounted brake light; and obtain a second duration during which the low-mounted brake light operates at the first target brightness; if the second duration reaches a second preset duration, turn off the low-mounted brake light; and adjust the brightness of the high-mounted brake light to a second target brightness; wherein the second target brightness is the lowest among a plurality of preset luminous brightness values ​​of the high-mounted brake light.

[0132] Optionally, the brake light includes a low-position brake light and a high-position brake light; the adjustment module 503 is specifically used to, when the other vehicles are in the stationary state, if the target duration reaches a third preset duration, turn off the low-position brake light and adjust the brightness of the high-position brake light to a second target brightness; wherein, the second target brightness is the lowest brightness among a plurality of preset brightness values ​​of the high-position brake light.

[0133] Optionally, the adjustment module 503 is further configured to obtain a third duration for which the high-mounted brake light operates at the second target brightness; and, if the third duration reaches a fourth preset duration, to turn off the high-mounted brake light and turn on the position light of the current vehicle.

[0134] Optionally, the adjustment module 503 is specifically used to reduce the brightness of the brake light to a third target brightness if the detection result indicates that there are no other vehicles behind the current vehicle. The third target brightness is the lowest brightness among a plurality of preset brightness values ​​of the brake light.

[0135] Optionally, the adjustment module 503 is further configured to, after reducing the brightness of the brake light to the third target brightness, obtain a fourth duration for which the brake light operates at the third target brightness, and detect whether other vehicles appear behind the current vehicle; and turn off the brake light if no other vehicles are detected behind the current vehicle and the fourth duration reaches a fifth preset duration.

[0136] Figure 6 This is a schematic diagram of the structure of a vehicle provided in an embodiment of this application.

[0137] For example, such as Figure 6 As shown, the vehicle 600 includes a memory 601 and a processor 602. The memory 601 stores executable program code 6011, and the processor 602 is used to call and execute the executable program code 6011 to perform a brake light control method.

[0138] Furthermore, embodiments of this application also protect an apparatus that may include a memory and a processor, wherein the memory stores executable program code, and the processor is used to call and execute the executable program code to perform a brake light control method provided in embodiments of this application.

[0139] This embodiment can divide the device into functional modules based on the above method example. For example, each module can correspond to a separate function, or two or more functions can be integrated into one processing module. The integrated module can be implemented in hardware. It should be noted that the module division in this embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods.

[0140] When the functional modules are divided according to their respective functions, the device may also include a detection module and a determination module. It should be noted that all relevant content regarding the steps involved in the above method embodiments can be referenced to the functional descriptions of the corresponding functional modules, and will not be repeated here.

[0141] It should be understood that the device provided in this embodiment is used to execute the above-described brake light control method, and therefore can achieve the same effect as the above-described implementation method.

[0142] When using an integrated unit, the device may include a processing module and a storage module. When the device is applied to a vehicle, the processing module can be used to control and manage the vehicle's movements. The storage module can be used to support the vehicle in executing program code, etc.

[0143] The processing module may be a processor or a controller, which can implement or execute various exemplary logic blocks, modules, and circuits as disclosed in this application. The processor may also be a combination of computing functions, such as a combination of one or more microprocessors, a combination of digital signal processing (DSP) and microprocessors, etc., and the storage module may be a memory.

[0144] In addition, the device provided in the embodiments of this application may specifically be a chip, component or module. The chip may include a connected processor and a memory. The memory is used to store instructions. When the processor calls and executes the instructions, the chip can execute a brake light control method provided in the above embodiments.

[0145] This embodiment also provides a computer-readable storage medium storing computer program code. When the computer program code is run on a computer, the computer executes the above-described related method steps to implement the brake light control method provided in the above embodiment.

[0146] This embodiment also provides a computer program product that, when run on a computer, causes the computer to perform the aforementioned steps to implement a brake light control method provided in the above embodiment.

[0147] In this embodiment, the device, computer-readable storage medium, computer program product, or chip are all used to execute the corresponding methods provided above. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods provided above, and will not be repeated here.

[0148] Through the above description of the embodiments, those skilled in the art will understand that, for the sake of convenience and brevity, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0149] In the embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another device, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0150] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A brake light control method, characterized in that, The method includes: With the vehicle currently in a parked state, a detection is performed behind the vehicle to obtain the detection result; If the detection result indicates that there are other vehicles behind the current vehicle, then the vehicle status and target parameters of the other vehicles are obtained; wherein, the vehicle status is a driving state or a stationary state, and the target parameters include the distance between the other vehicles and the current vehicle and the target duration, wherein the target duration is the duration for which the other vehicles remain stationary or driving. Adjust the brightness of the brake lights of the current vehicle according to the vehicle status and the target parameters; If the detection result indicates that there are no other vehicles behind the current vehicle, then the brightness of the brake lights is reduced; The brake lights include a low-position brake light and a high-position brake light; If the target duration is the duration during which the other vehicles remain stationary, adjusting the brightness of the brake lights of the current vehicle based on the vehicle status and the target parameter includes: When the other vehicles are stationary, if the target duration reaches a third preset duration, the low-position brake light is turned off, and the brightness of the high-position brake light is adjusted to a second target brightness; wherein, the second target brightness is the lowest brightness among a plurality of preset brightness values ​​of the high-position brake light.

2. The method as described in claim 1, characterized in that, The brake lights include low-position brake lights; If the target parameter includes the distance, adjusting the brightness of the brake lights of the current vehicle based on the vehicle status and the target parameter includes: When the vehicle is in the driving state, the brightness of the low-position brake light is reduced according to the distance, and the distance is positively correlated with the brightness of the low-position brake light.

3. The method as described in claim 2, characterized in that, The brake light also includes a high-mounted brake light; After reducing the brightness of the low-position brake light according to the distance, the method further includes: If it is detected that the other vehicle changes from the driving state to the stationary state, then the first duration of the other vehicle being in the stationary state is obtained; When the first duration reaches a first preset duration, the brightness of the low-position brake light is adjusted to a first target brightness, where the first target brightness is the lowest among a plurality of preset luminous brightness values ​​of the low-position brake light; and, Obtain the second duration for which the low-position brake light operates at the first target brightness; When the second duration reaches the second preset duration, the low-position brake light is turned off; The brightness of the high-mounted brake light is adjusted to a second target brightness; wherein the second target brightness is the lowest brightness among a plurality of preset brightness values ​​of the high-mounted brake light.

4. The method as described in claim 1, characterized in that, After adjusting the brightness of the high-mounted brake light to the second target brightness, the method further includes: Obtain the third duration for which the high-mounted brake light operates at the second target brightness; When the third duration reaches the fourth preset duration, the high-mounted brake light is turned off, and the position light of the current vehicle is turned on.

5. The method as described in claim 1, characterized in that, If the detection result indicates that there are no other vehicles behind the current vehicle, then reducing the brightness of the brake lights includes: If the detection result indicates that there are no other vehicles behind the current vehicle, the brightness of the brake light is reduced to a third target brightness, which is the lowest brightness among a plurality of preset brightness values ​​of the brake light.

6. The method as described in claim 5, characterized in that, After reducing the brightness of the brake light to the third target brightness, the method further includes: Obtain a fourth duration for which the brake lights operate at the third target brightness, and detect whether other vehicles appear behind the current vehicle; If no other vehicle is detected behind the current vehicle and the fourth duration reaches the fifth preset duration, the brake lights are turned off.

7. A brake light control device, characterized in that, The brake light control device includes: The detection module is used to detect the area behind the current vehicle when the vehicle is in a parking state and obtain the detection result. The acquisition module is used to acquire the vehicle status and target parameters of the other vehicle if the detection result indicates that there is another vehicle behind the current vehicle; wherein, the vehicle status is a driving state or a stationary state, and the target parameters include the distance between the other vehicle and the current vehicle and the target duration, wherein the target duration is the duration for which the other vehicle remains stationary or driving. An adjustment module is used to adjust the brightness of the brake lights of the current vehicle according to the vehicle status and the target parameters; if the detection result indicates that there are no other vehicles behind the current vehicle, the brightness of the brake lights is reduced. The brake lights include a low-position brake light and a high-position brake light. The adjustment module is specifically used to, if the target duration is the duration during which other vehicles remain stationary, and if the target duration reaches a third preset duration while other vehicles are stationary, turn off the low-position brake light and adjust the brightness of the high-position brake light to a second target brightness. The second target brightness is the lowest brightness among a plurality of preset brightness values ​​for the high-position brake light.

8. A vehicle, characterized in that, The vehicles include: Memory, used to store executable program code; A processor for calling and running the executable program code from the memory, causing the vehicle to perform the method as described in any one of claims 1 to 6.

9. A readable storage medium, characterized in that, The readable storage medium stores a computer program that, when executed, implements the method as described in any one of claims 1 to 6.

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