Vehicle lighting synchronization control device and synchronization control method

Abstract

The application provides a vehicle lighting synchronous control device and a synchronous control method. The signal detection unit acquires the ground voltage of the original vehicle lighting circuit in real time. The signal processing unit accurately identifies the control type (positive control or negative control) and the current light state according to the ground voltage, and converts them into a target state code. Finally, the control execution unit generates a driving signal according to the state code to realize real-time and accurate synchronous response of the target vehicle lamp and the original light state. The device does not need to break the line installation, has strong compatibility, can adapt to various vehicle models of different control types, effectively solves the problems of complex installation, poor synchronization and insufficient compatibility of traditional external lamps, and improves the safety and personalized experience of vehicle lighting.

Description

Technical Field

[0001] This application relates to the field of vehicle control technology, and in particular to a vehicle lighting synchronization control device and synchronization control method. Background Technology

[0002] With the rapid development of the automotive industry and the increasing demand for personalized modifications, more and more car owners are choosing to install additional lighting equipment on their vehicles, such as grille lights, spotlights, and ambient lights, to enhance the vehicle's aesthetics, visibility, or functionality.

[0003] However, many external vehicle lighting systems on the market currently have numerous problems in coordinating with the original vehicle lighting system. Traditional external lighting control methods often require wire cutting for installation, which may not only affect the safety and warranty of the original vehicle wiring, but also is complex to operate and requires a high level of technical skill from the installers. More importantly, these external lighting systems struggle to achieve precise and real-time synchronization with the original vehicle's lighting status (such as low beam, high beam, overtaking lights, etc.). For example, when the original vehicle switches to high beam or performs an overtaking flashing maneuver, the external grille lights or spotlights cannot automatically follow and switch to the corresponding operating mode (such as brightness changes, flashing, etc.). This not only diminishes the practical value of the external lighting system, but may also mislead other road users due to the asynchronous lighting, posing a certain safety hazard.

[0004] In addition, the control logic (such as positive control and negative control) of the original vehicle lighting circuits differs between different brands and models of vehicles. Existing external lighting control devices often have poor compatibility and are difficult to adapt to various vehicle models, causing inconvenience to users in terms of selection and use. Summary of the Invention

[0005] The purpose of this application is to at least solve one of the above-mentioned technical defects, in particular the technical defects in the prior art where external lighting fixtures are difficult to achieve accurate and real-time synchronous response with the original vehicle's lighting status, and have poor compatibility, making it difficult to adapt to various vehicle models.

[0006] This application provides a vehicle lighting synchronization control device, the device comprising:

[0007] The signal detection unit is used to detect the voltage to ground of the original vehicle lighting circuit under different lighting conditions;

[0008] A signal processing unit, connected to the signal detection unit, is used to identify the control type of the original vehicle lighting circuit based on the voltage to ground detected by the signal detection unit, and to collect the current voltage to ground of the original vehicle lighting circuit in real time, and to identify the current original vehicle lighting status based on the current voltage to ground and the control type, and to convert the original vehicle lighting status into the corresponding target status code.

[0009] A control execution unit, connected to the signal processing unit, is used to generate a corresponding drive control signal based on the target status code, so as to control the target vehicle lights to synchronously respond to the original vehicle lighting status.

[0010] Optionally, the process by which the signal processing unit identifies the control type of the original vehicle lighting circuit based on the voltage to ground detected by the signal detection unit includes:

[0011] When the signal processing unit detects that the voltage to ground is within a first preset voltage range when the lights are on and within a second preset voltage range when the lights are off, it identifies the control type of the original vehicle lighting circuit as positive control.

[0012] When the signal processing unit detects that the voltage to ground is within a third preset voltage range when the lights are on and within a fourth preset voltage range when the lights are off, it identifies the control type of the original vehicle lighting circuit as negative control.

[0013] Optionally, the first preset voltage range is the voltage range adapted to the vehicle battery, and the second preset voltage range is 0V;

[0014] The third preset voltage range is the voltage range when grounded, and the fourth preset voltage range is either high level or floating.

[0015] Optionally, the signal processing unit has a built-in vehicle lighting detection truth table, which is used to characterize the mapping relationship between the voltage to ground, the level combination of the judgment port of the signal processing unit and the original vehicle lighting status under different control types.

[0016] The process by which the signal processing unit identifies the current original vehicle lighting status based on the current ground voltage and the control type includes:

[0017] The signal processing unit determines the target level combination corresponding to the control type and the current voltage to ground based on the vehicle lighting detection truth table, and determines the original vehicle lighting state corresponding to the target level combination based on the vehicle lighting detection truth table.

[0018] Optionally, the process by which the signal processing unit converts the original vehicle lighting status into a corresponding target status code includes:

[0019] The signal processing unit retrieves the target level combination corresponding to the original vehicle lighting status, and determines the target status code that matches the target level combination according to the preset correspondence rules between port level combinations and status codes.

[0020] Optionally, the determination port is the LA, LB, HC, HD port group integrated by the signal processing unit;

[0021] The level combination is the high and low level combination of the LA, LB, HC, and HD port groups, and different level combinations are bound to different status codes.

[0022] Optionally, the control execution unit has a built-in correspondence between status codes and drive control logic;

[0023] The process by which the control execution unit generates a corresponding drive control signal based on the target status code includes:

[0024] The control execution unit receives the target status code transmitted by the signal processing unit, retrieves the preset drive control logic that matches the target status code, and generates a drive control signal adapted to the target vehicle lighting fixture according to the preset drive control logic.

[0025] Optionally, the original vehicle lighting status includes at least low beam only, high beam only, and overtaking flash. The status code corresponding to the original vehicle lighting status with low beam only is status code A, the status code corresponding to the original vehicle lighting status with high beam only is status code B, and the status code corresponding to the original vehicle lighting status with overtaking flash is status code C.

[0026] The control execution unit generates a corresponding drive control signal based on the target status code, and controls the target vehicle lights to synchronously respond to the original vehicle lighting status, including:

[0027] When the control execution unit receives the status code A, the generated drive control signal is used to control the white LED beads in the grille light to provide auxiliary lighting at a brightness lower than a preset brightness threshold.

[0028] When the control execution unit receives the status code B, the generated drive control signal is used to control the brightness of the white LED beads in the grille light to increase to 100% and to light up the yellow LED beads.

[0029] When the control execution unit receives the status code C, the generated drive control signal is used to control the grille lights to flash synchronously with the original vehicle's overtaking flashing action.

[0030] Optionally, the original vehicle lighting circuit includes a front lighting system circuit, a rear lighting system circuit, a side lighting system circuit, and an interior lighting system circuit. The front lighting system circuit includes at least a high beam circuit and a front fog light circuit. The voltage to ground of each original vehicle lighting circuit is independently and in real time collected by the signal detection unit.

[0031] This application also provides a vehicle lighting synchronization control method, the method comprising:

[0032] Test the voltage to ground of the original vehicle lighting circuit under different lighting conditions;

[0033] The control type of the original vehicle lighting circuit is identified based on the ground voltage detected by the signal detection unit, and the current ground voltage of the original vehicle lighting circuit is collected in real time. The current original vehicle lighting status is identified based on the current ground voltage and the control type, and the original vehicle lighting status is converted into the corresponding target status code.

[0034] Based on the target status code, a corresponding drive control signal is generated to control the target vehicle lights to synchronously respond to the original vehicle lighting status.

[0035] As can be seen from the above technical solutions, the embodiments of this application have the following advantages:

[0036] This application provides a vehicle lighting synchronization control device and method. A signal detection unit collects the voltage to ground of the original vehicle lighting circuit in real time. A signal processing unit accurately identifies the control type (positive or negative control) and the current lighting status based on this voltage, converting it into a target status code. Finally, a control execution unit generates a drive signal based on the status code, achieving real-time and precise synchronization between the target vehicle lighting fixture and the original vehicle lighting status. This device requires no wire cutting for installation, has strong compatibility, and can adapt to various vehicle models with different control types. It effectively solves the problems of complex installation, poor synchronization, and insufficient compatibility of traditional external lighting fixtures, improving the safety and personalized experience of vehicle lighting. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, 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 this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the structure of a vehicle lighting synchronization control device provided in an embodiment of this application;

[0039] Figure 2 This is a schematic diagram of the control process of the vehicle lighting synchronization control device provided in the embodiments of this application;

[0040] Figure 3 This is a schematic diagram illustrating the process by which the signal processing unit identifies the control type of the original vehicle lighting circuit in an embodiment of this application.

[0041] Figure 4 A diagram illustrating the contents of the vehicle lighting detection truth table provided in this application embodiment;

[0042] Figure 5 This is a flowchart illustrating a vehicle lighting synchronization control method provided in an embodiment of this application. Detailed Implementation

[0043] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0044] In one embodiment, such as Figure 1 , Figure 2 Show, Figure 1 This is a schematic diagram of the structure of a vehicle lighting synchronization control device provided in an embodiment of this application. Figure 2 This is a schematic diagram of the control process of the vehicle lighting synchronization control device provided in the embodiments of this application; this application provides a vehicle lighting synchronization control device, which may include:

[0045] The signal detection unit is used to detect the voltage to ground of the original vehicle lighting circuit under different lighting conditions.

[0046] A signal processing unit, connected to the signal detection unit, is used to identify the control type of the original vehicle lighting circuit based on the voltage to ground detected by the signal detection unit, and to collect the current voltage to ground of the original vehicle lighting circuit in real time, and to identify the current original vehicle lighting status based on the current voltage to ground and the control type, and to convert the original vehicle lighting status into the corresponding target status code.

[0047] A control execution unit, connected to the signal processing unit, is used to generate a corresponding drive control signal based on the target status code, so as to control the target vehicle lights to synchronously respond to the original vehicle lighting status.

[0048] In this embodiment, the signal detection unit, through its connection with the original vehicle lighting circuit, can accurately capture the changes in the voltage to ground of the circuit under different lighting conditions. For example, when the vehicle is in different states such as low beam headlights, high beam headlights, turn signals, or brake lights, the voltage value in the circuit will exhibit a specific range or change pattern. The signal detection unit can collect these voltage signals and transmit them to the signal processing unit so that the signal processing unit can process the signal.

[0049] In this application, the original vehicle lighting circuit refers to the wiring system that is originally configured in the vehicle at the factory to control the operation of various lights (such as headlights, turn signals, brake lights, side marker lights, fog lights, etc.). It includes the wires, connectors, fuses, and signal transmission paths connected to the original vehicle lighting control module (such as the body control module BCM) required to achieve lighting control, and is the basic wiring architecture of the vehicle lighting system.

[0050] In order to determine the control type of the original vehicle lighting circuit, this application requires first collecting ground voltage data of the vehicle in both the off and on states of the lights using a signal detection unit. Specifically, when the vehicle is off and all lights are off, the signal detection unit can collect the ground voltage of the original vehicle lighting circuit as a reference value; subsequently, different lighting functions such as low beam headlights, high beam headlights, and overtaking lights are turned on, and ground voltage data is collected for each state.

[0051] Furthermore, after receiving the voltage to ground from the signal detection unit, the signal processing unit of this application can first analyze it to identify the control type of the original vehicle lighting circuit, such as whether it is positive control, negative control, or other specific control methods. After determining the control type, the signal processing unit can monitor the current voltage to ground of the original vehicle lighting circuit in real time, and accurately determine the current status of the original vehicle lights by combining the identified control type.

[0052] The original vehicle lighting states in this application include, but are not limited to, low beam only, high beam only, low beam and high beam simultaneously (such as when flashing for overtaking), turn signals, brake lights, front fog lights, rear fog lights, side marker lights, and hazard warning lights. Once the current original vehicle lighting state is identified, the signal processing unit can convert it into a preset target state code. This state code is a digital code or instruction that can be recognized and processed by the control execution unit. Different original vehicle lighting states correspond to different target state codes, thereby ensuring that the control execution unit can accurately understand and respond to the original vehicle's lighting intentions.

[0053] Furthermore, after receiving the target status code sent by the signal processing unit, the control execution unit can generate a drive control signal corresponding to the target status code according to the internal preset logic and parameters. The voltage, current and other parameters of the drive control signal are matched with the working requirements of the target vehicle lamp, so as to effectively drive the target vehicle lamp and make it achieve precise and real-time synchronous response with the original vehicle lighting status, ensuring that the lighting, extinguishing and flashing frequency of the target vehicle lamp are consistent with the original vehicle lighting.

[0054] The target vehicle lighting fixtures in this application include, but are not limited to, grille lights, spotlights, roof LED strip lights, front fascia lights, wheel arch lights, chassis ambient lights, interior ambient lights, welcome pedal lights, rearview mirror turn signal extension modules, and high-mounted brake light auxiliary lights. These lighting fixtures are usually purchased and installed by users according to their individual needs. Their types cover a variety of categories, including decorative lighting, functional auxiliary lighting, and safety warning lighting. They are intended to meet the lighting needs of vehicles in different scenarios or enhance the uniqueness of vehicle appearance through the supplementation and expansion of lighting.

[0055] In the above embodiments, the signal detection unit collects the voltage to ground of the original vehicle lighting circuit in real time. Based on this, the signal processing unit accurately identifies the control type (positive or negative control) and the current lighting status, and converts it into a target status code. Finally, the control execution unit generates a drive signal based on the status code, achieving real-time and precise synchronous response between the target vehicle lighting fixture and the original vehicle lighting status. This device requires no wire cutting for installation, has strong compatibility, and can adapt to various vehicle models with different control types. It effectively solves the problems of complex installation, poor synchronization, and insufficient compatibility of traditional external lighting fixtures, improving the safety and personalized experience of vehicle lighting.

[0056] In one embodiment, such as Figure 3 As shown, Figure 3 This is a schematic diagram illustrating the process by which the signal processing unit identifies the control type of the original vehicle lighting circuit according to an embodiment of this application; the process by which the signal processing unit identifies the control type of the original vehicle lighting circuit based on the voltage to ground detected by the signal detection unit may include:

[0057] When the signal processing unit detects that the voltage to ground is within the first preset voltage range when the lights are on and within the second preset voltage range when the lights are off, it identifies the control type of the original vehicle lighting circuit as positive control.

[0058] When the signal processing unit detects that the voltage to ground is within the third preset voltage range when the lights are on and within the fourth preset voltage range when the lights are off, it identifies the control type of the original vehicle lighting circuit as negative control.

[0059] In this embodiment, the signal processing unit distinguishes between positive and negative control types by comparing the voltage values ​​to ground when the lights are on and off. For the original vehicle lighting circuit of the positive control type, the core characteristic is that when the lights are on, the voltage to ground rises to a first preset voltage range matching the vehicle battery voltage, typically 9-18V (the specific value can be fine-tuned according to the battery specifications of different vehicle models). This indicates that there is current output in the circuit to drive the lamps. When the lights are off, the voltage to ground quickly drops to a second preset voltage range of 0V, meaning the circuit is de-energized. For example, if the signal detection unit detects a voltage to ground of 13.5V (within the first preset voltage range) when the low beam headlights are on, and the voltage becomes 0V (within the second preset voltage range) after the low beam headlights are off, the signal processing unit determines that the circuit is of the positive control type.

[0060] In contrast, the voltage to ground in a negative-controlled vehicle lighting circuit is within the third preset voltage range (typically 0-1V) when the lights are on, close to ground. This is because the negative-controlled circuit forms a loop by grounding one end of the lamp. When the lights are off, the voltage to ground is either in a high-level state (e.g., close to the battery voltage) or a floating state (i.e., not connected to the power supply or ground, exhibiting high impedance) within the fourth preset voltage range. For example, if the signal detection unit detects a voltage to ground of 0.3V (within the third preset voltage range) when the turn signal is on, and the voltage rises to 12V (high level, within the fourth preset voltage range) after the turn signal is off, the signal processing unit determines that the circuit is of the negative-controlled type.

[0061] Through this comparative analysis of voltage ranges, the signal processing unit can accurately identify the control type of the original vehicle lighting circuit, laying the foundation for subsequent identification of lighting status.

[0062] In one embodiment, the first preset voltage range is the voltage range adapted to the vehicle battery, and the second preset voltage range is 0V.

[0063] The third preset voltage range is the voltage range when grounded, and the fourth preset voltage range is either high level or floating.

[0064] In this embodiment, the first preset voltage range is the voltage range adapted to the vehicle battery, such as 9-18V. This range covers the voltage output range of common vehicle batteries under normal operating conditions, ensuring that the voltage signal when the positive control circuit is turned on can be stably identified. The second preset voltage range is explicitly set to 0V. This is because when the positive control circuit is turned off, the circuit is disconnected from the power supply, and the voltage to ground is theoretically zero. By setting it to 0V, the switching state of the positive control circuit can be accurately distinguished.

[0065] The third preset voltage range is set to 0-1V. This range corresponds to the weak voltage when the line is grounded, which is consistent with the voltage performance of the negative control line when it forms a loop through ground. The fourth preset voltage range is defined as either high level or floating state. The high level is usually close to the vehicle battery voltage (such as 12V or 24V, depending on the vehicle model), while the floating state indicates that the line is not connected to the power supply or ground, exhibiting high impedance characteristics. Both of these situations are common voltage performances when the negative control line is closed. By accurately defining these voltage ranges, the signal processing unit can more reliably distinguish between positive and negative control lines, improving the accuracy and stability of control type identification.

[0066] In one embodiment, the signal processing unit has a built-in vehicle lighting detection truth table, which is used to characterize the mapping relationship between the voltage to ground, the level combination of the decision port of the signal processing unit, and the original vehicle lighting status under different control types.

[0067] The process by which the signal processing unit identifies the current original vehicle lighting status based on the current ground voltage and the control type may include:

[0068] The signal processing unit determines the target level combination corresponding to the control type and the current voltage to ground based on the vehicle lighting detection truth table, and determines the original vehicle lighting state corresponding to the target level combination based on the vehicle lighting detection truth table.

[0069] In this embodiment, the vehicle lighting detection truth table is the core basis for the signal processing unit to identify the lighting status. It pre-stores a one-to-one correspondence between the voltage value to ground of the original vehicle lighting circuit, the level combination of the signal processing unit's determination port, and the specific original vehicle lighting status under different control types (positive control / negative control). The voltage value to ground in the vehicle lighting detection truth table can be represented by 0 and 1. 0 represents the voltage range corresponding to the voltage to ground being off (e.g., 0V for positive control, high level or floating for negative control), and 1 represents the voltage range corresponding to the voltage to ground being on (e.g., 9-18V for positive control, 0-1V for negative control). The determination port of the signal processing unit refers to its internal interface used to receive and process different voltage signals from the original vehicle lighting circuit. For example, the signal processing unit will set different determination ports for different lighting functions such as low beam headlights, high beam headlights, and turn signals. The level state (high or low) of each decision port is determined by the range of the voltage to ground it receives. For example, for a positive control line, when the decision port detects a voltage between 9-18V, it outputs a high level (which can be recorded as 1), and when it detects 0V, it outputs a low level (which can be recorded as 0). For a negative control line, when the decision port detects a voltage between 0-1V, it outputs a high level (which can be recorded as 1), and when it detects a high level or is floating, it outputs a low level (which can be recorded as 0).

[0070] The vehicle lighting test truth table associates the level combinations of these determination ports with the specific original vehicle lighting status. For example, if the signal processing unit has three determination ports corresponding to the low beam, high beam, and left turn signal circuits respectively, when the control type is positive control, the truth table may record: when the low beam port level is 1, the high beam port level is 0, and the left turn signal port level is 0, the corresponding original vehicle lighting status is "low beam only"; when the low beam port level is 1, the high beam port level is 1, and the left turn signal port level is 0, the corresponding status is "low beam and high beam are on simultaneously (overtaking light)"; when the left turn signal port level is 1 (and its voltage exhibits periodic on / off changes to identify flashing status), and other ports are 0, the corresponding status is "left turn signal on".

[0071] Once the signal processing unit acquires the current voltage to ground in real time, it can determine the current level state of each judgment port based on the identified control type, forming a level combination (such as 100, 110, 001, etc.). Then, the signal processing unit searches the vehicle lighting detection truth table for an entry that perfectly matches the control type and level combination, thereby accurately identifying the current original vehicle lighting status. This truth table-based identification method is logically clear, responds quickly, and ensures accurate judgment of complex lighting states.

[0072] In one embodiment, the process by which the signal processing unit converts the original vehicle lighting status into a corresponding target status code may include:

[0073] The signal processing unit retrieves the target level combination corresponding to the original vehicle lighting status, and determines the target status code that matches the target level combination according to the preset correspondence rules between port level combinations and status codes.

[0074] In this embodiment, after identifying the current original vehicle lighting status, the signal processing unit can retrieve the target level combination corresponding to that status in the vehicle lighting detection truth table. For example, if the identified original vehicle lighting status is "low beam only," the corresponding target level combination under the positive control type is low beam port 1, high beam port 0, and turn signal port 0 (assuming a three-port system). Subsequently, the signal processing unit converts this target level combination into a specific target status code according to an internally preset set of port level combinations and status code correspondence rules.

[0075] It is understood that the correspondence between port level combinations and status codes in this application can be a binary encoding, decimal encoding, or other custom encoding method. For example, the level combination "100" (low beam on, high beam off, turn signal off) can be mapped to the status code "0x01", "110" (low beam on, high beam on) can be mapped to "0x03", and "001" (left turn signal on) can be mapped to "0x04", etc. In this way, the signal processing unit can convert the abstract level combination into digital instructions that the control execution unit can directly recognize and process, preparing for the subsequent driving of the target vehicle lighting. This conversion process ensures the accuracy and efficiency of information transmission, enabling different original vehicle lighting states to be uniquely and clearly identified.

[0076] In one embodiment, such as Figure 4 As shown, Figure 4 This is a diagram illustrating the contents of the vehicle lighting detection truth table provided in this application embodiment; the determination port is the LA, LB, HC, and HD port group integrated by the signal processing unit.

[0077] The level combination is the high and low level combination of the LA, LB, HC, and HD port groups, and different level combinations are bound to different status codes.

[0078] In this embodiment, as Figure 4 As shown, Figure 4 VL and VH refer to the low beam and high beam signals in the original vehicle lighting status, NC indicates no headlight signal, and MCU refers to the signal processing unit. The specific determination port of the signal processing unit can be an integrated LA, LB, HC, and HD port group. These four ports correspond to different lighting circuits in the vehicle. For example, the LA port can be used to detect the voltage to ground of the low beam circuit, the LB port is used to detect the high beam circuit, the HC port corresponds to the turn signal circuit, and the HD port can be used to detect other lighting circuits such as brake lights or position lights (the specific correspondence can be preset according to the actual lighting configuration of the vehicle model or dynamically adjusted through the learning process).

[0079] Furthermore, each port in this application has independent voltage detection and level conversion functions, which can convert the collected voltage signal of the original vehicle lighting circuit to ground into a digital level (high level or low level) that can be recognized by the signal processing unit. A high level (usually represented by "1") indicates that the corresponding light circuit is in the on state, and a low level (usually represented by "0") indicates that it is in the off state. Thus, the high and low level combinations of the four ports LA, LB, HC, and HD form a 4-bit binary level combination, such as "1000", "0100", "1100", "0010", etc., each combination uniquely corresponding to a specific original vehicle lighting state.

[0080] Meanwhile, these level combinations are bound one-to-one with the target status codes through preset rules. For example, if the LA port is high (1) and the other ports are low (0), the level combination "1000" corresponds to the original vehicle lighting status of "only low beam on", and its bound target status code can be set to "0x08"; if the LB port is high (1) and the other ports are low (0), "0100" corresponds to "only high beam on", and the bound status code is "0x04"; if the LA and LB ports are both high (1) and the HC and HD ports are low (0), "1100" corresponds to "both low beam and high beam on (overtaking light)", and the bound status code is "0x0C"; if the HC port is high (1) and shows periodic high and low level changes (to represent turn signal flashing) and the other ports are low (0), "0010" corresponds to "turn signal on", and the bound status code is "0x02", and so on.

[0081] By setting up this port group and binding the level combination with the status code one by one, the signal processing unit can efficiently and accurately convert the complex original vehicle lighting status into digital instructions that the control execution unit can directly interpret, providing a solid foundation for achieving precise synchronous control of the target vehicle lighting.

[0082] In one embodiment, the control execution unit has a built-in correspondence between status codes and drive control logic.

[0083] The process by which the control execution unit generates a corresponding drive control signal based on the target status code may include:

[0084] The control execution unit receives the target status code transmitted by the signal processing unit, retrieves the preset drive control logic that matches the target status code, and generates a drive control signal adapted to the target vehicle lighting fixture according to the preset drive control logic.

[0085] In this embodiment, the control execution unit serves as the core hub connecting the signal processing unit and the target vehicle lighting fixture. The correspondence between its built-in status codes and drive control logic is crucial for achieving synchronized lighting control. This correspondence pre-stores the specific drive strategy corresponding to each status code, including the on / off state of the target vehicle lighting fixture, brightness adjustment parameters (such as when dimming is supported), flashing frequency, and lighting fixture combination mode, etc. The specific settings can be configured according to actual conditions and are not limited here.

[0086] For example, when the target status code is "0x08" (corresponding to the original vehicle lighting status of "low beam only"), the preset drive control logic retrieved by the control execution unit can be: turn on the grille lights and front fascia lights, setting the brightness to 30% (to avoid dazzling oncoming vehicles while providing moderate decorative lighting); when the target status code is "0x04" (corresponding to "high beam only"), the drive control logic can be adjusted to: turn on the roof LED strip lights and spotlights, increasing the brightness to 80% (to enhance long-distance lighting effects and assist the original vehicle high beams), while keeping the brightness of the grille lights and front fascia lights at 30% or appropriately reduced; when the target status code is "0x0C" (corresponding to "low beam and high beam simultaneously, i.e., overtaking light status"), the drive... The dynamic control logic can trigger the strobe mode of the roof LED strip lights and spotlights (e.g., flashing 2-3 times at a frequency of 10Hz) to enhance the overtaking warning effect, and then return to a constant high-brightness state. When the target status code is "0x02" (corresponding to "turn signal on"), if the HC port detects a left turn signal (distinguished by the phase of the level change or a preset port definition), the control execution unit drives the left wheel arch light and the left rearview mirror turn signal extension module to flash synchronously at the same frequency as the original turn signal (usually 1.5Hz). Similarly, if it is a right turn signal, the right wheel arch light and the right rearview mirror turn signal extension module are driven to flash synchronously. At the same time, the brightness of some decorative lights on the same side can be turned off or reduced to highlight the turn signal. For the brake light status code, the control logic can be set to illuminate the high-mounted brake light auxiliary light and adjust its brightness to the maximum, while the interior ambient light switches to a red warning light. For the position light status code, only the chassis ambient light and welcome pedal lights may be turned on to provide a soft nighttime contour indication.

[0087] In the above process, by strictly following these preset drive control logics, the control execution unit can ensure that the working state of the target vehicle lighting is highly coordinated with the original vehicle lighting state, which not only meets the user's personalized lighting needs, but also does not interfere with the normal function of the original vehicle lighting system, thereby achieving safe, reliable and personalized vehicle lighting synchronous control.

[0088] In one embodiment, the original vehicle lighting status may include at least low beam only, high beam only, and overtaking flash. The status code corresponding to the original vehicle lighting status with low beam only is status code A, the status code corresponding to the original vehicle lighting status with high beam only is status code B, and the status code corresponding to the original vehicle lighting status with overtaking flash is status code C.

[0089] The control execution unit generates a corresponding drive control signal based on the target status code, and controls the target vehicle lighting to synchronously respond to the original vehicle lighting status, which may include:

[0090] When the control execution unit receives the status code A, the generated drive control signal is used to control the white LED beads in the grille light to provide auxiliary lighting at a brightness lower than a preset brightness threshold.

[0091] When the control execution unit receives the status code B, the generated drive control signal is used to control the brightness of the white LED beads in the grille light to increase to 100% and to light up the yellow LED beads.

[0092] When the control execution unit receives the status code C, the generated drive control signal is used to control the grille lights to flash synchronously with the original vehicle's overtaking flashing action.

[0093] In this embodiment, for the three typical scenarios commonly seen in the original vehicle lighting state—low beam only, high beam only, and overtaking flash—this embodiment further refines the specific driving strategy of the control execution unit for the target vehicle lighting.

[0094] Taking the grille light as an example, when the control execution unit receives status code A, which represents "low beam only," the generated drive control signal will precisely act on the white LED of the grille light. At this time, the white LED will be lit at a brightness level lower than the preset threshold (e.g., 30% of the rated brightness). This design can utilize the positional advantage of the grille light to provide some auxiliary lighting on top of the original low beam headlights, enhancing the visibility of the front of the vehicle, while avoiding glare interference to the driver due to excessive brightness, thus ensuring driving safety at night.

[0095] When the control execution unit receives status code B, representing "high beam only," the drive logic undergoes a significant change. At this time, the control signal not only increases the brightness of the white LEDs in the grille lights to 100% of their rated brightness to maximize the auxiliary high beam illumination effect and enhance the illumination range and clarity on distant roads, but also triggers the activation of the yellow LEDs. Activating the yellow LEDs serves two purposes: firstly, it utilizes the strong penetrating power of yellow light in rain and fog to improve driving safety in adverse weather conditions; secondly, the yellow light creates a more distinctive visual effect in front of the vehicle, working in conjunction with the original high beams to enhance illumination intensity and warning effect.

[0096] When the control execution unit receives status code C, representing "overtaking flash," its core control objective is to achieve precise synchronization between the grille lights and the original vehicle's overtaking flashing action. The original vehicle's overtaking flashing typically involves rapidly switching on and off its high beams (i.e., "flashing high beams") to signal the overtaking intention to other vehicles or pedestrians. Upon receiving status code C, the control execution unit immediately generates a pulse drive signal with the same frequency and duty cycle as the original vehicle's overtaking flashing, controlling the grille lights (which may include white LEDs, yellow LEDs, or both simultaneously) to flash synchronously. This synchronous flashing not only significantly enhances the visual cues of the overtaking signal, making it easier for the overtaken vehicle or pedestrians to notice, thus improving the safety of overtaking operations, but also further enhances the vehicle's dynamic visibility during overtaking through the large-area flashing of the grille lights.

[0097] In one embodiment, the original vehicle lighting circuit includes a front lighting system circuit, a rear lighting system circuit, a side lighting system circuit, and an interior lighting system circuit. The front lighting system circuit includes at least a high beam circuit and a front fog light circuit. The voltage to ground of each original vehicle lighting circuit is independently and in real time collected by the signal detection unit.

[0098] In this embodiment, in order to achieve accurate monitoring of the vehicle's all-around lighting status, the coverage of the original vehicle lighting circuit is further refined, specifically divided into the front lighting system circuit, the rear lighting system circuit, the side lighting system circuit, and the interior lighting system circuit.

[0099] The front lighting system, as the core of vehicle illumination, encompasses at least the high and low beam headlight circuits and the front fog light circuits. The high and low beam headlight circuits provide the primary illumination for nighttime driving, and their status changes directly affect driver visibility and driving safety. The front fog light circuits play a crucial role in low-visibility weather conditions such as fog, rain, and snow, providing the driver with clear close-range illumination and road contour indication. The signal detection unit, by configuring independent detection channels for these different original vehicle lighting circuits, can collect the voltage to ground of each circuit in real time and in parallel.

[0100] For example, for the front lighting system circuitry, the signal detection unit can allocate independent voltage sampling modules for the low beam, high beam, and front fog light circuits, ensuring accurate acquisition of the voltage status of each circuit at all times. This independent acquisition method effectively avoids signal interference between different circuits, guarantees the accuracy and reliability of the acquired data, and provides comprehensive and high-quality raw data support for the subsequent signal processing unit to identify the lighting status.

[0101] Whether it's the switching of high and low beam headlights at the front, the activation of front fog lights, or the brake lights and turn signals at the rear, the turn signals and side marker lights on the sides, or even the reading lights and ambient lights inside the vehicle, the changes in the voltage to ground of their circuits can be captured in a timely manner by the signal detection unit, thereby achieving comprehensive and blind-spot-free monitoring of the overall lighting system status of the vehicle.

[0102] In one embodiment, such as Figure 5 As shown, Figure 5 This application provides a flowchart illustrating a vehicle lighting synchronization control method according to an embodiment of the present application; the present application also provides a vehicle lighting synchronization control method, which may include:

[0103] S110: Detects the voltage to ground of the original vehicle lighting circuit under different lighting conditions.

[0104] S120: Identify the control type of the original vehicle lighting circuit based on the voltage to ground detected by the signal detection unit, and collect the current voltage to ground of the original vehicle lighting circuit in real time. Identify the current original vehicle lighting status based on the current voltage to ground and the control type, and convert the original vehicle lighting status into the corresponding target status code.

[0105] S130: Generate the corresponding drive control signal based on the target status code to control the target vehicle lights to synchronously respond to the original vehicle lighting status.

[0106] In this embodiment, a complete control process from detecting the original vehicle lighting status to synchronously responding to the target vehicle lighting fixture is realized through step-by-step logic design.

[0107] First, this application provides a basic electrical parameter basis for subsequent status identification by detecting the voltage to ground of the original vehicle lighting circuit under different lighting conditions. This step ensures that subtle changes in circuit voltage can be captured when the original vehicle lights are turned on, off, or switched, which is a prerequisite for achieving precise control. Next, this application can identify the control type of the original vehicle lighting circuit based on the voltage to ground detected by the signal detection unit. This means that the system can distinguish between lighting circuits with different functions, such as low beam circuits, high beam circuits, turn signal circuits, etc., and clearly identify the control object corresponding to each circuit.

[0108] Based on this, this application can collect the current voltage to ground of the original vehicle lighting circuit in real time, and combine it with the identified control type to further identify the current specific original vehicle lighting status, such as complex states like "low beam only" or "high beam and turn signals on simultaneously". Subsequently, this application can convert the identified original vehicle lighting status into a corresponding target status code. This conversion process is like giving each lighting status a unique "digital ID card", enabling the abstract status description to be efficiently processed digitally by the control execution unit.

[0109] Finally, this application can generate corresponding drive control signals based on the target status code to precisely control the target vehicle lighting to synchronously respond to the original vehicle lighting status. For example, when the original vehicle's low beam headlights are on, after the target status code is interpreted, the drive signal will control the grille lights to provide softer illumination; and when the original vehicle's turn signals are flashing, the drive signal will control the corresponding extended turn signal modules to flash synchronously at the same frequency. The entire process is interconnected, from the acquisition of the original voltage signal to the intelligent recognition of the status, and then to the generation and execution of the final control command, forming a closed-loop control system that ensures a high degree of coordination and precise synchronization between the target vehicle lighting and the original vehicle lighting system.

[0110] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0111] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The various embodiments can be combined as needed, and the same or similar parts can be referred to each other.

[0112] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vehicle lighting synchronization control device, characterized in that, The device includes: The signal detection unit is used to detect the voltage to ground of the original vehicle lighting circuit under different lighting conditions; A signal processing unit, connected to the signal detection unit, is used to identify the control type of the original vehicle lighting circuit based on the voltage to ground detected by the signal detection unit, and to collect the current voltage to ground of the original vehicle lighting circuit in real time, and to identify the current original vehicle lighting status based on the current voltage to ground and the control type, and to convert the original vehicle lighting status into the corresponding target status code. A control execution unit, connected to the signal processing unit, is used to generate a corresponding drive control signal based on the target status code, so as to control the target vehicle lights to synchronously respond to the original vehicle lighting status.

2. The apparatus according to claim 1, characterized in that, The process by which the signal processing unit identifies the control type of the original vehicle lighting circuit based on the voltage to ground detected by the signal detection unit includes: When the signal processing unit detects that the voltage to ground is within a first preset voltage range when the lights are on and within a second preset voltage range when the lights are off, it identifies the control type of the original vehicle lighting circuit as positive control. When the signal processing unit detects that the voltage to ground is within a third preset voltage range when the lights are on and within a fourth preset voltage range when the lights are off, it identifies the control type of the original vehicle lighting circuit as negative control.

3. The apparatus according to claim 2, characterized in that, The first preset voltage range is the voltage range adapted to the vehicle battery, and the second preset voltage range is 0V; The third preset voltage range is the voltage range when grounded, and the fourth preset voltage range is either high level or floating.

4. The apparatus according to claim 1, characterized in that, The signal processing unit has a built-in vehicle lighting detection truth table, which is used to characterize the mapping relationship between the ground voltage, the level combination of the judgment port of the signal processing unit and the original vehicle lighting status under different control types. The process by which the signal processing unit identifies the current original vehicle lighting status based on the current ground voltage and the control type includes: The signal processing unit determines the target level combination corresponding to the control type and the current voltage to ground based on the vehicle lighting detection truth table, and determines the original vehicle lighting state corresponding to the target level combination based on the vehicle lighting detection truth table.

5. The apparatus according to claim 4, characterized in that, The process by which the signal processing unit converts the original vehicle lighting status into the corresponding target status code includes: The signal processing unit retrieves the target level combination corresponding to the original vehicle lighting status, and determines the target status code that matches the target level combination according to the preset correspondence rules between port level combinations and status codes.

6. The apparatus according to claim 5, characterized in that, The determination port is the LA, LB, HC, and HD port group integrated by the signal processing unit; The level combination is the high and low level combination of the LA, LB, HC, and HD port groups, and different level combinations are bound to different status codes.

7. The apparatus according to claim 1, characterized in that, The control execution unit has a built-in correspondence between status codes and drive control logic; The process by which the control execution unit generates a corresponding drive control signal based on the target status code includes: The control execution unit receives the target status code transmitted by the signal processing unit, retrieves the preset drive control logic that matches the target status code, and generates a drive control signal adapted to the target vehicle lighting fixture according to the preset drive control logic.

8. The apparatus according to claim 1, characterized in that, The original vehicle lighting status includes at least low beam only, high beam only, and overtaking flash. The status code corresponding to the original vehicle lighting status of low beam only is status code A, the status code corresponding to the original vehicle lighting status of high beam only is status code B, and the status code corresponding to the original vehicle lighting status of overtaking flash is status code C. The control execution unit generates a corresponding drive control signal based on the target status code, and controls the target vehicle lights to synchronously respond to the original vehicle lighting status, including: When the control execution unit receives the status code A, the generated drive control signal is used to control the white LED beads in the grille light to provide auxiliary lighting at a brightness lower than a preset brightness threshold. When the control execution unit receives the status code B, the generated drive control signal is used to control the brightness of the white LED beads in the grille light to increase to 100% and to light up the yellow LED beads. When the control execution unit receives the status code C, the generated drive control signal is used to control the grille lights to flash synchronously with the original vehicle's overtaking flashing action.

9. The apparatus according to any one of claims 1-8, characterized in that, The original vehicle lighting circuit includes the front lighting system circuit, the rear lighting system circuit, the side lighting system circuit, and the interior lighting system circuit. The front lighting system circuit includes at least the high and low beam circuit and the front fog light circuit. The voltage to ground of each original vehicle lighting circuit is independently collected in real time by the signal detection unit.

10. A method for synchronous control of vehicle lighting, characterized in that, The method includes: Test the voltage to ground of the original vehicle lighting circuit under different lighting conditions; The control type of the original vehicle lighting circuit is identified based on the ground voltage detected by the signal detection unit, and the current ground voltage of the original vehicle lighting circuit is collected in real time. The current original vehicle lighting status is identified based on the current ground voltage and the control type, and the original vehicle lighting status is converted into the corresponding target status code. Based on the target status code, a corresponding drive control signal is generated to control the target vehicle lights to synchronously respond to the original vehicle lighting status.

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