Vehicle light control method, system, vehicle, and storage medium

Abstract

The application provides a vehicle lamp control method, system, vehicle and storage medium. The method comprises the following steps: when the LCD receives the welcome mode opening instruction sent by the HUT, the welcome mode is opened; when the CEM detects a trigger signal, a vehicle lamp welcome instruction corresponding to the trigger signal is generated, and the vehicle lamp welcome instruction is sent to the LCD; when the LCD receives the vehicle lamp welcome instruction, the vehicle lamp performs a welcome operation, and the vehicle lamp performing the welcome operation comprises that the vehicle lamp is turned on and opened to the maximum position of a mechanical movement position. The application can realize that the vehicle lamp automatically performs the welcome operation, and through the vehicle lamp being turned on and opened to the maximum position of the mechanical movement position, a more lively and various welcome effect is realized, and the user satisfaction with the vehicle is improved.

Description

Technical Field

[0001] This invention relates to the field of vehicle control technology, and in particular to a vehicle lighting control method, system, vehicle, and storage medium. Background Technology

[0002] As people's living standards improve, cars are becoming an increasingly common mode of transportation. With the widespread application of intelligent automotive lighting, users' demands for automotive lighting have expanded beyond mere road illumination, and they are beginning to seek new functions such as greater intelligence and a sense of occasion.

[0003] Currently, existing technologies use the method of instantly turning on the light after unlocking to present a welcoming experience to users. However, the welcoming effect of this light is stiff and cannot truly bring users a pleasant lighting experience. Summary of the Invention

[0004] This invention provides a vehicle lighting control method, system, vehicle, and storage medium to solve the problem that the existing technology of lighting only turns on the lights instantly to greet guests, resulting in a single greeting method and poor effect.

[0005] In a first aspect, embodiments of the present invention provide a vehicle lighting control method, comprising:

[0006] When the Lighting Control Drive (LCD) receives a welcome mode activation command from the Head Unit System (HUT), the welcome mode is activated.

[0007] When the Central Electronic Control Module (CEM) detects a trigger signal, it generates a corresponding headlight welcome command and sends the headlight welcome command to the LCD.

[0008] When the LCD receives the vehicle light welcome instruction, it controls the vehicle light to perform a welcome operation, which includes turning on the vehicle light and opening it to the maximum mechanical movement position.

[0009] In one possible implementation, the trigger signal includes a first trigger signal generated when the vehicle smart key is less than a preset distance from the vehicle, and a second trigger signal generated when the vehicle is unlocked;

[0010] When the CEM detects a trigger signal, it generates a corresponding vehicle light welcome command, including:

[0011] When CEM detects the first trigger signal, it generates a first headlight welcome command;

[0012] Alternatively, when CEM detects the second trigger signal, it generates a second headlight welcome command.

[0013] In one possible implementation, sending the vehicle light welcome command to the LCD includes:

[0014] The vehicle light welcome instruction is sent to the LCD in the form of an event frame, and the vehicle light welcome event frame is sent continuously for N frames, where N is an integer greater than or equal to 2; wherein, the vehicle light welcome event frame is to set the value of the vehicle light welcome switch signal status bit to the first value;

[0015] The value of the welcome light switch signal status bit is set to the third value, which indicates no action.

[0016] In one possible implementation, when the LCD receives the vehicle light welcome instruction, it controls the vehicle lights to perform a welcome operation, including:

[0017] When the LCD receives the first vehicle light welcome command, it controls the vehicle lights to perform the welcome operation;

[0018] When a second headlight welcome instruction is received during the process of controlling the headlights to perform the welcome operation, the headlights will perform the welcome operation with the second headlight welcome instruction as the highest priority.

[0019] In one possible implementation, before activating the welcome mode when the LCD receives the welcome mode activation command sent by the HUT, the following steps are also included:

[0020] The welcome mode and other modes for controlling the vehicle lights are set to be mutually exclusive.

[0021] One possible implementation also includes:

[0022] When the CEM detects a malfunction in the vehicle headlights' welcome operation, it generates a malfunction command and sends the malfunction command to the LCD. When the LCD receives the malfunction command, it controls the vehicle headlights to stop moving.

[0023] When the CEM detects a lock signal or a door open signal, it generates a headlight retraction command and sends the headlight retraction command to the LCD. When the LCD receives the headlight retraction command, it controls the headlights to retract.

[0024] In one possible implementation, sending the vehicle light welcome command to the LCD includes:

[0025] The vehicle light welcome command is sent to the Lighting Control Module (LCM). After receiving the vehicle light welcome command, the LCM performs a logical judgment on the vehicle status based on the vehicle light welcome command. When the logical judgment result meets the conditions for executing the vehicle light welcome command, the vehicle light welcome command is sent to the LCD.

[0026] Secondly, embodiments of the present invention provide a vehicle lighting control system, including:

[0027] The LCD is used to activate the welcome mode when it receives the welcome mode activation command sent by HUT.

[0028] CEM is used to generate a corresponding headlight welcome command when a trigger signal is detected, and send the headlight welcome command to the LCD.

[0029] The LCD is also used to control the vehicle lights to perform a welcoming operation when it receives the vehicle light welcoming instruction. The vehicle light performing the welcoming operation includes turning on the vehicle lights and opening them to the maximum mechanical movement position.

[0030] Thirdly, embodiments of the present invention provide a vehicle including the vehicle lighting control system described in any of the above embodiments.

[0031] Fourthly, embodiments of the present invention provide a computer-readable storage medium storing a computer program that, when executed by a corresponding processor, implements the steps of the vehicle lighting control method as described in the first aspect or any possible implementation thereof.

[0032] This invention provides a vehicle lighting control method, system, vehicle, and storage medium. After activating the welcome mode, the CEM detects a trigger signal and generates a corresponding vehicle lighting welcome command, which is then sent to the LCD to control the vehicle lights to perform the welcome operation. This enables the vehicle lights to automatically perform the welcome operation, and by illuminating the vehicle lights and turning them to their maximum mechanical movement position, a more lively and diverse welcome effect is achieved, thereby improving user satisfaction. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is an application scenario diagram of the vehicle light control method provided in the embodiments of the present invention;

[0035] Figure 2 This is a functional mapping diagram provided by an embodiment of the present invention;

[0036] Figure 3 This is a schematic diagram of the functional interface provided in an embodiment of the present invention;

[0037] Figure 4 This is a schematic diagram of the vehicle lighting control system provided in an embodiment of the present invention. Detailed Implementation

[0038] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the invention with unnecessary detail.

[0039] To make the objectives, technical solutions, and advantages of the present invention clearer, specific embodiments will be described below in conjunction with the accompanying drawings.

[0040] Figure 1 A flowchart illustrating the implementation of a vehicle lighting control method according to an embodiment of the present invention is described in detail below:

[0041] Step 101: When the LCD receives the welcome mode activation command sent by the HUT, the welcome mode is activated.

[0042] The welcome mode is set when the vehicle's power is on. Users can turn it on or off using a virtual button on the front center console screen, which displays the current status. Simply tap the virtual button to turn the welcome mode on or off.

[0043] When a user clicks the virtual button to activate the welcome mode, the HUT receives the welcome mode activation command and sends it to the LCD. This activation command sets the welcome mode on / off signal status bit to its first value, which can be represented by "Open" or other values, such as a numerical value. Therefore, the welcome mode activation command could be LLightWelModSwt = 0x2:Open. The welcome mode deactivation command sets the welcome mode on / off signal status bit to its second value, which can be represented by "Close". Therefore, the welcome mode deactivation command could be LLightWelModSwt = 0x1:Close. By assigning values ​​to the welcome mode activation or deactivation signal status bits, the corresponding welcome mode activation or deactivation commands are generated. Additionally, the welcome mode can also be set to a no-action command, which sets the welcome mode on / off signal status bit to its third value, which can be represented by "No_Action". Therefore, LLightWelModSwt = 0x0:No_Action.

[0044] To ensure effective command reception, the welcome mode activation command sent by the HUT can be sent to the LCD in the form of event frames. For example, sending N consecutive frames of LLightWelModSwt = 0x2:Open to the LCD, where N is an integer greater than or equal to 2 (e.g., N can be a positive integer such as 3, 4, 5, or 6). When the LCD receives the N consecutive frames of welcome mode activation commands from the HUT, it activates the welcome mode. However, the headlights do not perform a welcome operation at this time. After setting, the LCD remembers the welcome mode activation state. When a subsequent command corresponding to the headlight welcome operation is triggered, the welcome operation is performed directly without needing to determine whether the welcome mode is activated, thus saving welcome command execution time. It should be noted that both the HUT and the LCD remember the set welcome switch state. If the value remembered by the LCD is inconsistent with that of the HUT, the LCD will use the real-time value sent by the HUT.

[0045] In one embodiment, after the HUT sends a continuous N-frame welcome mode activation command to the LCD, the value of the vehicle light welcome switch signal status bit is set to the third value, which indicates no action. That is, LLightWelModSwt = 0x0:No_Action is set to prevent other signals from being triggered by mistake, generating erroneous signals, and causing the vehicle lights to operate incorrectly.

[0046] It should be noted that after each HUT or CEM sends an event frame to the LCD, the value of the corresponding switch signal status bit needs to be set to the third value indicating no action to prevent the signal from being triggered accidentally.

[0047] Step 102: When the CEM detects the trigger signal, it generates a headlight welcome command corresponding to the trigger signal and sends the headlight welcome command to the LCD.

[0048] The vehicle headlight welcome function is an operation where the vehicle headlights greet the user before they enter the vehicle, in order to improve user satisfaction and make the user feel happy. Therefore, the prerequisites for the vehicle headlight welcome function are that the power is OFF, the vehicle is locked, and all four doors of the vehicle are closed.

[0049] After the vehicle's welcome mode is activated, when a user approaches the vehicle with the smart key, a first trigger signal is generated to control the headlights to perform a welcome operation when the smart key is less than a preset distance from the vehicle. When the user unlocks the vehicle, a second trigger signal is generated to control the headlights to perform a welcome operation. Therefore, the trigger signals in this step include the first trigger signal generated when the smart key is less than a preset distance from the vehicle, and the second trigger signal generated when the vehicle is unlocked.

[0050] Different trigger signals result in different headlight welcome commands; that is, there is a one-to-one correspondence between trigger signals and headlight welcome commands. Therefore, when the CEM detects the first trigger signal, it generates the first headlight welcome command; or, when the CEM detects the second trigger signal, it generates the second headlight welcome command.

[0051] For example, when CEM detects the first trigger signal, it generates the first vehicle light welcome command. The first vehicle light welcome command sets the value of the first vehicle light welcome switch signal status bit to the first value. The first value can be a value that indicates that it is on. For example, if the first value is ON, then the first vehicle light welcome command can be Approach light command = 0x2:ON.

[0052] When CEM detects the second trigger signal, it generates a second welcome light command. The second welcome light command sets the value of the second welcome light switch signal status bit to the first value. The first value can be a value that indicates that it is on. For example, if the first value is ON, then the first welcome light command can be Unlock welcome light command = 0x2:ON.

[0053] When sending the welcome light command to the LCD, the command is sent as an event frame, and N consecutive welcome light event frames are sent, where N is an integer greater than or equal to 2, to ensure that the LCD can accurately and effectively receive the event frames sent by the CEM. The welcome light switch signal status bit is set to the third value, which indicates no action. For example, `Approach light command = 0x0:No_Action`, or `Unlock welcome light command = 0x0:No_Action`.

[0054] The function interface value for the headlight welcome status is set to the third value here to prevent other signals from accidentally triggering the function interface value for the headlight welcome status, generating incorrect signals, and causing the headlights to execute incorrect commands.

[0055] Step 103: When the LCD receives the headlights welcome instruction, it controls the headlights to perform the welcome operation.

[0056] When the LCD receives all the vehicle light welcome commands, it controls the vehicle lights to turn on to their maximum mechanical position and maintains them there until the welcome operation ends, at which point the lights are turned off. In one embodiment, the vehicle lights can be pop-up lights, capable of performing mechanical actions, such as rotating from their minimum mechanical position to their maximum position. For example, the vehicle lights could be two headlights positioned at the front of the vehicle, rotating from left to right or right to left in a horizontal direction, depending on the direction the user is approaching the vehicle. The lights can also pop up and down, making the welcome action more lively. Popping up and down and popping left and right can also be performed sequentially or interspersed.

[0057] The vehicle light welcome operation is complete, either because the operation has been performed or because other conditions that do not meet the requirements for the operation have been met, such as the vehicle power being ON or the vehicle doors being open.

[0058] When the CEM detects a lock signal or a door open signal, it generates a headlight retraction command and sends the command to the LCD. When the LCD receives the headlight retraction command, it controls the headlights to retract. That is, when the LCD receives the headlight retraction command after the headlights have been deployed for welcome, the headlights retract.

[0059] Different vehicle light welcome commands may result in the same or different welcome operations performed by the corresponding vehicle lights; this embodiment does not impose any limitations on this.

[0060] It should be noted that when the LCD receives the first headlight welcome command, it controls the headlights to perform the welcome operation. If a second headlight welcome command is received during the headlights' welcome operation, the second command takes precedence and is executed with the highest priority. In other words, if the headlights are performing a welcome operation as the user approaches the vehicle, and the vehicle receives the user's unlock command while the headlights are on, the two welcome operations conflict. In this embodiment, the second headlight welcome command takes precedence, meaning that when the second command is received, the headlights' welcome operation at that moment continues until the welcome operation ends.

[0061] During the headlight welcome operation, the headlights may malfunction. For example, a foreign object may get stuck in the headlight's mechanical movement slot, preventing the headlight from continuing to rotate, or the headlight motor may stall or fail to break ice. When the CEM detects a malfunction in the headlight welcome operation, specifically if it detects a large current fluctuation or the headlight welcome operation times out, it generates a fault command and sends it to the LCD. Upon receiving the fault command, the LCD controls the headlights to stop moving and maintain the status quo to prevent further damage from movement.

[0062] In one embodiment, the HUT has vehicle light control modes other than the welcome mode. Here, the welcome mode is an automatic welcome mode for the vehicle lights. Therefore, manual mode and performance mode are also available. The welcome mode and other vehicle light control modes are set to be mutually exclusive. When the user clicks the virtual button corresponding to the welcome mode, the virtual buttons corresponding to other modes are disabled. To prevent repeated operations, after the user clicks the virtual button corresponding to the welcome mode, the virtual button corresponding to the welcome mode is disabled, but the signal status bits of the performance mode and welcome mode switches remain unchanged.

[0063] When a user tests or tries out the vehicle's welcome mode inside the car, they can set a manual welcome mode. In this mode, the vehicle is in the ON position and the doors are closed. After the user selects manual mode, the HUT (Head-Up Display) shows the welcome light operation screen, and the headlights perform the welcome operation. When a door opening signal is detected, or when the vehicle is in a position other than ON, the headlights retract to the off state, and the HUT displays the headlight retraction operation screen.

[0064] In one embodiment, when the CEM detects a trigger signal and generates a corresponding headlight welcome command, sending the headlight welcome command to the LCD may include: sending the headlight welcome command to the LCM; after receiving the headlight welcome command, the LCM performs a logical judgment on the vehicle status based on the headlight welcome command; if the logical judgment result meets the conditions for executing the headlight welcome command, the headlight welcome command is forwarded to the LCD, and the LCD controls the headlights to perform a welcome operation based on the headlight welcome command.

[0065] The LCM performs logical judgments, including detecting whether the current vehicle status meets the conditions for executing the headlight welcome command. Specifically, it detects whether the vehicle is locked and whether all doors are closed. If the vehicle is locked and all doors are closed, it determines that the current vehicle status meets the conditions for executing the headlight welcome command and sends the headlight welcome command to the LCD.

[0066] See Figure 2The functional mapping diagram shown includes three main components: HUT, CEM, and LCM. The HUT enables functions such as welcome mode switching, abnormal alerts, and welcome mode memory. The CEM enables power mode determination, welcome mode memory, and headlight status determination. The LCM enables headlight drive component and position memory, abnormal alarms, and headlight anti-pinch logic. Combined with... Figure 3 The functional interface diagram shown illustrates how, when a user clicks to turn the welcome mode on or off on the HUT, the CEM receives the command and determines the current power mode. If the current power mode is ON, the command to turn the welcome mode on or off is sent to the LCD via the LCM for execution. After the LCD turns the welcome mode on or off, the LCM receives the command and executes it, feeding back the headlight welcome mode status to the HUT via the CEM. At this time, the headlights do not perform the welcome operation. When the LCD is performing the headlight welcome operation, it will feed back the headlight status to the CEM.

[0067] When the LCM detects a headlight malfunction, it sends the cause of the malfunction to the CEM. The CEM then sends a headlight malfunction alarm signal to the HUT, which displays the alarm to remind the user to handle the issue. The cause of the malfunction could be an overheated headlight motor, inconsistent headlight operation, or an open or short circuit in the corresponding headlight circuit. For example, LCMLightThermSts(Period) = 0x1: ON, LCMLightLrngSts(Period) = 0x1: ON, LCMMFltSts = 0x1: Error. After the malfunction is repaired, the user needs to manually set the values ​​of the corresponding status bits, for example, LCMLightThermSts(Period) = 0x0: OFF, LCMLightLrngSts(Period) = 0x0: OFF, LCMMFltSts = 0x0: No Error.

[0068] in addition, Figure 2 It also includes CEM's judgment of the vehicle lights status when the user unlocks or locks the vehicle using the vehicle's smart key. Figure 3 The system generates corresponding instructions by assigning values ​​to the status bits of the corresponding function switch signals, and sends the generated instructions to the corresponding execution entity in the form of event frames.

[0069] The above-mentioned headlight control method generates a corresponding headlight welcome command after the CEM detects the trigger signal when the welcome mode is activated. This command is then sent to the LCD to control the headlights to perform the welcome operation. This enables the headlights to automatically perform the welcome operation. Furthermore, by illuminating the headlights and turning them to their maximum mechanical movement position, a more lively and diverse welcome effect is achieved, thereby improving user satisfaction.

[0070] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0071] The following are device embodiments of the present invention. For details not described in detail, please refer to the corresponding method embodiments described above.

[0072] Figure 4 A schematic diagram of the vehicle lighting control system provided in an embodiment of the present invention is shown. For ease of explanation, only the parts related to the embodiment of the present invention are shown, and are described in detail below:

[0073] like Figure 4 As shown, the vehicle lighting control system includes: LCD401 and CEM 402.

[0074] LCD401 is used to activate the welcome mode when it receives a welcome mode activation command sent by HUT.

[0075] CEM402 is used to generate a vehicle light welcome command corresponding to the trigger signal when a trigger signal is detected, and send the vehicle light welcome command to LCD401;

[0076] LCD401 is also used to control the vehicle lights to perform a welcoming operation when a welcoming instruction is received. The welcoming operation includes turning on the vehicle lights and opening them to the maximum mechanical movement position.

[0077] In one possible implementation, the CEM402 trigger signal includes a first trigger signal generated when the vehicle smart key is less than a preset distance from the vehicle, and a second trigger signal generated when the vehicle is unlocked;

[0078] When CEM402 detects a trigger signal, it generates a corresponding vehicle light welcome command for the trigger signal, used for:

[0079] When CEM402 detects the first trigger signal, it generates the first headlight welcome command;

[0080] Alternatively, when CEM402 detects the second trigger signal, it generates a second headlight welcome command.

[0081] In one possible implementation, when CEM402 sends the headlight welcome command to LCD401, it is used for:

[0082] The vehicle light welcome instruction is sent to the LCD401 in the form of an event frame, and the vehicle light welcome event frame is sent continuously for N frames, where N is an integer greater than or equal to 2; wherein, the vehicle light welcome event frame sets the value of the vehicle light welcome switch signal status bit to the first value.

[0083] Set the value of the welcome light switch signal status bit to the third value, which indicates no action.

[0084] In one possible implementation, when LCD401 receives a vehicle light welcome command, it controls the vehicle lights to perform the welcome operation by:

[0085] When the LCD receives the first headlight welcome command, it controls the headlights to perform the welcome operation;

[0086] When a second headlight welcome instruction is received during the process of controlling the headlights to perform the welcome operation, the headlights will perform the welcome operation with the second headlight welcome instruction as the highest priority.

[0087] In one possible implementation, before activating the welcome mode after receiving the welcome mode activation command from the HUT, the LCD401 is also used for:

[0088] Set the welcome mode and other modes for controlling the vehicle lights to be mutually exclusive.

[0089] In one possible implementation, CEM402 is used to generate a fault command when a fault is detected in the vehicle headlight welcome operation, and send the fault command to LCD401. When LCD401 receives the fault command, it controls the vehicle headlights to stop moving.

[0090] When CEM402 detects a lock signal or a door open signal, it generates a headlight retraction command and sends the command to LCD401. Upon receiving the headlight retraction command, LCD401 controls the headlights to retract.

[0091] In one possible implementation, when CEM402 sends the headlight welcome instruction to LCD, CEM402 also sends the headlight welcome instruction to LCM. After receiving the headlight welcome instruction, LCM performs a logical judgment on the vehicle status based on the headlight welcome instruction. When the logical judgment result meets the conditions for executing the headlight welcome instruction, it sends the headlight welcome instruction to LCD401.

[0092] The aforementioned vehicle lighting control system, after the welcome mode is activated via the LCD, generates a corresponding vehicle lighting welcome command after the CEM detects the trigger signal and sends it to the LCD to control the vehicle lights to perform the welcome operation. This enables the vehicle lights to automatically perform the welcome operation, and achieves a more lively and diverse welcome effect by illuminating the vehicle lights and turning them to their maximum mechanical movement position, thereby improving user satisfaction.

[0093] The present invention provides a vehicle that includes the vehicle lighting control system provided in any of the above embodiments and has the beneficial effects brought by the vehicle lighting control system provided in any of the above embodiments.

[0094] When the aforementioned vehicle lighting control method can be implemented as a software functional unit and sold or used as an independent product, it can be stored in a corresponding computer-readable storage medium. Based on this understanding, the present invention can implement all or part of the processes in the above embodiments by instructing related hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various vehicle lighting control method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include: any entity or device capable of carrying computer program code, recording media, USB flash drives, portable hard drives, magnetic disks, optical disks, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc. It should be noted that the content included in the computer-readable medium can be appropriately added or removed according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable medium does not include electrical carrier signals and telecommunication signals.

[0095] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. A vehicle headlight control method, characterized in that, include: When the LCD receives the welcome mode activation command sent by the HUT, it activates the welcome mode. At this time, the headlights do not perform the welcome operation, and the LCD remembers the welcome mode activation state after the setting. When the command corresponding to the headlight welcome operation is triggered later, the welcome operation is performed directly. The welcome mode activation command is sent to the LCD in the form of an event frame. When the CEM detects a trigger signal, it generates a corresponding headlight welcome command and sends the headlight welcome command to the LCD. After each HUT or CEM sends an event frame to the LCD, the value of the corresponding switch signal status bit needs to be set to a third value indicating no action. When the LCD receives the vehicle light welcome instruction, it controls the vehicle light to perform a welcome operation, which includes turning on the vehicle light and opening it to the maximum mechanical movement position. The headlights are pop-up lights; Sending the vehicle light welcome command to the LCD includes: The vehicle headlight welcome command is sent to the LCD in the form of an event frame.

2. The vehicle light control method according to claim 1, characterized in that, The trigger signals include a first trigger signal generated when the vehicle smart key is less than a preset distance from the vehicle, and a second trigger signal generated when the vehicle is unlocked; When the CEM detects a trigger signal, it generates a corresponding vehicle light welcome command, including: When CEM detects the first trigger signal, it generates a first headlight welcome command; Alternatively, when CEM detects the second trigger signal, it generates a second headlight welcome command.

3. The vehicle light control method according to claim 1, characterized in that, Sending the vehicle light welcome command to the LCD also includes: The vehicle headlight welcome event frame is continuously sent N frames, where N is an integer greater than or equal to 2; wherein, the vehicle headlight welcome event frame is to set the value of the vehicle headlight welcome switch signal status bit to the first value.

4. The vehicle light control method according to claim 1, characterized in that, When the LCD receives the vehicle light welcome command, it controls the vehicle light to perform a welcome operation, including: When the LCD receives the first vehicle light welcome command, it controls the vehicle lights to perform the welcome operation; When a second headlight welcome instruction is received during the process of controlling the headlights to perform the welcome operation, the headlights will perform the welcome operation with the second headlight welcome instruction as the highest priority.

5. The vehicle light control method according to any one of claims 1-4, characterized in that, Before activating the welcome mode after the LCD receives the welcome mode activation command sent by HUT, the following steps are also included: The welcome mode and other modes for controlling the vehicle lights are set to be mutually exclusive.

6. The vehicle light control method according to any one of claims 1-4, characterized in that, Also includes: When the CEM detects a malfunction in the vehicle headlights' welcome operation, it generates a malfunction command and sends the malfunction command to the LCD. When the LCD receives the malfunction command, it controls the vehicle headlights to stop moving. When the CEM detects a lock signal or a door open signal, it generates a headlight retraction command and sends the headlight retraction command to the LCD. When the LCD receives the headlight retraction command, it controls the headlights to retract.

7. The vehicle light control method according to any one of claims 1-4, characterized in that, Sending the vehicle light welcome command to the LCD includes: The vehicle headlight welcome command is sent to the LCM. After receiving the vehicle headlight welcome command, the LCM performs a logical judgment on the vehicle status based on the vehicle headlight welcome command. When the logical judgment result meets the conditions for executing the vehicle headlight welcome command, the vehicle headlight welcome command is sent to the LCD.

8. A vehicle lighting control system, characterized in that, include: When the LCD receives the welcome mode activation command sent by the HUT, it activates the welcome mode. At this time, the headlights do not perform the welcome operation, and the LCD remembers the welcome mode activation state after the setting. When the command corresponding to the headlight welcome operation is triggered later, the welcome operation is performed directly. The welcome mode activation command is sent to the LCD in the form of an event frame. When a trigger signal is detected, the CEM generates a corresponding headlight welcome command and sends the headlight welcome command to the LCD. After each HUT or CEM sends an event frame to the LCD, the value of the corresponding switch signal status bit needs to be set to a third value indicating no action. The LCD is also used to control the vehicle lights to perform a welcoming operation when the vehicle lights welcome instruction is received. The vehicle lights performing the welcoming operation includes turning on the vehicle lights and opening them to the maximum mechanical movement position. The headlights are pop-up lights; Sending the vehicle light welcome command to the LCD includes: The vehicle headlight welcome command is sent to the LCD in the form of an event frame.

9. A vehicle, characterized in that, Includes the vehicle lighting control system described in claim 8.

10. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the corresponding processor, it implements the steps of the vehicle light control method as described in any one of claims 1 to 7.

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