A method for implementing a composite indicator and sign light for automobile charging, and a circuit control method.

Abstract

This invention relates to the field of automotive control technology, and more particularly to a method for implementing a composite light for charging indication and signage in automobiles. The control method of the circuit includes: a vehicle controller, a composite light control circuit, a first composite light, and a second composite light. The vehicle controller is used to send vehicle light signals to the composite light control circuit via a CAN bus. The composite light control circuit is used to receive and parse the vehicle light signals, determine whether to enter a signage display mode or a charging indicator display mode based on the parsing result, and send corresponding strategy instructions to the composite light driver chip. Both the first and second composite lights have internally configured matrix LED light sources, controlled by the composite light driver chip, to execute a welcoming dynamic effect or a segmented dynamic power level indication effect. This invention achieves dynamic charging progress indication and a flowing welcoming effect through time-sharing control, enhancing the sense of ceremony and convenience of human-vehicle interaction.

Description

Technical Field

[0001] This application relates to the field of automotive application control technology, and in particular to an implementation method of a composite light for automotive charging indication and sign, and a circuit control method. Background Technology

[0002] Car charging indicator lights are typically located at the charging port and have a relatively simple function, primarily indicating whether the charging connection or charging status is normal. In most current models, these indicator lights only provide a constant or simple flashing light, failing to convey richer information to the user, such as the current battery level range or the charging speed. Users often need to check the dashboard or a mobile app to understand the charging progress, as they cannot directly obtain intuitive information from the lights, resulting in a weak interactive experience.

[0003] Meanwhile, vehicle marker lights or welcome lights are typically designed as independent systems, belonging to different lighting modules from the charging indicator lights and installed in different locations on the vehicle body. This split approach increases system complexity and layout costs. Moreover, most existing welcome lights can only achieve static constant illumination or simple overall lighting effects, failing to present dynamic flowing or zoned coordinated lighting effects in scenarios such as unlocking and locking. The lack of functional reuse and scene linkage between the charging indicator lights and welcome lights means that the independently addressable and time-division control characteristics of LED matrix light sources have not been fully utilized, limiting the further expansion of lighting functions and affecting the user's visual experience and sense of ceremony during use. Summary of the Invention

[0004] The purpose of this invention is to provide a method for implementing a combined car charging indicator and sign light, and a circuit control method, to solve the problems of existing technologies where the charging indicator light has a single function, is separately arranged from the welcome light, and lacks dynamic interactive effects.

[0005] This invention provides the following solution:

[0006] On one hand, the present invention provides an implementation method for a composite light for car charging indication and sign, including: a vehicle controller, a composite light control circuit, a first composite light, and a second composite light;

[0007] The vehicle controller is used to send vehicle light signals to the composite lamp control circuit via the CAN bus;

[0008] The composite lamp control circuit is used to receive and analyze the vehicle lamp signal, determine whether to enter the marker light display mode or the charging indicator light display mode based on the analysis result, and send the corresponding strategy instruction to the composite lamp driver chip.

[0009] Both the first composite lamp and the second composite lamp are equipped with a matrix LED light source inside, which is controlled by the composite lamp driver chip to perform a welcome dynamic effect or a segmented power dynamic indication effect.

[0010] Optionally, the composite lamp control circuit includes an MCU and a composite lamp driver chip. The MCU and the composite lamp driver chip interact with each other through a custom communication protocol based on serial communication to control the on / off timing of each channel in the matrix LED light source.

[0011] Optionally, the first composite lamp and the second composite lamp together contain 208 LED light sources and are divided into 62 independently controllable channels, each of which can be individually controlled to turn on and off.

[0012] The strategy instructions are used to control the conduction timing and duration of each channel.

[0013] On the other hand, the present invention provides a control method for a composite light circuit for an automotive charging indicator and sign, comprising:

[0014] The composite lamp control circuit receives the vehicle lamp signal sent by the vehicle controller via the CAN bus;

[0015] The composite lamp control circuit analyzes the vehicle lamp signal and determines whether to enter the marker light display mode or the charging indicator light display mode based on the analysis result.

[0016] In response to entering the sign light display mode, the composite light control circuit sends a first strategy instruction to the composite light driver chip to control the matrix LED light sources in the first composite light and the second composite light to perform a welcoming dynamic effect;

[0017] In response to entering the charging indicator display mode, the composite lamp control circuit sends a second strategy command to the composite lamp driver chip to control the matrix LED light sources in the first and second composite lamps to perform a segmented dynamic power indication effect.

[0018] Optionally, the indicator light display mode includes a constant light mode and a sequential lighting mode;

[0019] The composite lamp control circuit analyzes the welcome instruction in the vehicle light signal to determine whether to enter the constant light mode or the sequential lighting mode; wherein, the welcome instruction is a specific identifier in the vehicle light signal, used to distinguish between constant light triggering and sequential lighting triggering.

[0020] Optionally, in response to entering the sequential lighting mode, all designated LED light sources of the first composite lamp and the second composite lamp are controlled to be lit in a grouped sequence according to a preset first timing sequence, and remain lit after all of them are lit, until a shutdown signal is received and the entire system is turned off.

[0021] Optionally, in response to entering the flowing light mode, the first composite light and the second composite light are controlled to illuminate in a coordinated flowing manner according to a preset second timing sequence, wherein the first composite light starts to light up before the second composite light to form a dynamic welcoming effect flowing from one side to the other.

[0022] Optionally, the segmented dynamic power indication effect specifically includes:

[0023] Analyze the real-time vehicle battery information contained in the headlight signals;

[0024] When the real-time battery level of the vehicle is in the first preset range, the second composite light is controlled to perform a sequential lighting effect;

[0025] When the real-time battery level of the vehicle is in the second preset range, the second composite lamp and a portion of the first composite lamp are controlled to jointly perform a sequential lighting effect, and the lower limit of the battery level in the second preset range is higher than the upper limit of the battery level in the first preset range.

[0026] When the real-time battery level of the vehicle is within the third preset range, the second composite lamp and the first composite lamp are controlled to perform a continuous lighting effect. The lower limit of the battery level in the third preset range is higher than the upper limit of the battery level in the second preset range.

[0027] Optionally, any of the aforementioned flowing light effects is a dynamically cyclical flowing light effect until the real-time battery level of the vehicle changes to the next preset range, or a charging end signal is received from the vehicle controller.

[0028] Optionally, the sequential lighting involves lighting a group of LEDs every 40 milliseconds, with each group of LEDs corresponding to at least one channel, and all LEDs are lit within 2440 milliseconds.

[0029] The above solution achieves the following beneficial technical effects:

[0030] In charging scenarios, this invention can divide the charging progress into different intervals based on real-time power information sent by the vehicle controller, and each interval corresponds to a different range of sequential lighting. For example, when the power is low, only some lights participate in the sequential lighting, and as the power increases, it gradually expands to all lights, with the sequential lighting effect dynamically cycling throughout the charging process. This segmented indication method allows users to roughly judge the charging progress without looking at the dashboard, making information acquisition more intuitive and convenient.

[0031] In a welcoming scenario, this invention supports both constant illumination and flowing light modes, and the two composite lights can work together in a flowing pattern, with the light flowing from one side to the other to form a complete light flow line. Compared with conventional static welcome lights, this dynamic effect significantly enhances the sense of ceremony and technology, and improves the personalized expression of the vehicle.

[0032] Furthermore, this invention integrates charging indication and welcoming sign functions into the same set of matrix LED lights, and controls them uniformly through the same set of composite light control circuits and driver chips. This eliminates the need to set up separate lights for charging indication and welcoming sign, reduces the number of system components, lowers the difficulty and cost of layout, and fully leverages the hardware advantages of programmable control of LED matrix light sources. Attached Figure Description

[0033] Figure 1 A structural schematic diagram of an implementation of a composite light for indicating and marking automobile charging according to an embodiment of the present invention is shown.

[0034] Figure 2 A flowchart illustrating a control method for a composite light circuit for an automotive charging indicator and sign according to an embodiment of the present invention is shown. Detailed Implementation

[0035] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] It should be noted that all uses of "first" and "second" in the embodiments of the present invention are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of the present invention. Subsequent embodiments will not explain this in detail.

[0037] In automotive lighting applications, traditional charging indicator lights have a single function, merely indicating the charging status and lacking dynamic welcome functionality for user interaction. This single-function lighting fails to fully utilize the independently addressable and programmable control features of LED light sources, thus reducing the user's sense of technology and overall experience. In some related technologies, welcome lights and charging indicator lights are often separate designs, installed in different locations, leading to system complexity and increased costs. Even in integrated designs, they are mostly static displays, unable to provide dynamic, area-coordinated flowing light indication effects based on charging progress or welcome scenarios.

[0038] In view of this, in order to solve at least one of the above technical problems, the present invention proposes an implementation method of a composite light for car charging indication and signage and a control method for its circuit. By integrating the charging indication and the signage welcome function into the same matrix LED light fixture, and controlling the LED light source according to the vehicle signal using a grouping and time-sharing strategy, dynamic charging indication and dynamic welcome functions are realized, thereby improving user perception.

[0039] The present invention will now be described in detail with reference to the embodiments and accompanying drawings.

[0040] The first aspect of this invention provides a method for implementing a composite light for car charging indication and signage, such as... Figure 1 As shown, this implementation method specifically includes: a vehicle controller, a composite lamp control circuit, a first composite lamp, and a second composite lamp.

[0041] The vehicle controller is used to send headlight signals to the composite lamp control circuit via the CAN bus. In this embodiment of the invention, the vehicle controller, as the core control unit of the vehicle, monitors various vehicle states in real time, such as whether an unlock / lock signal has been received, whether a charging gun has been plugged in, and the current vehicle battery level. The vehicle controller packages this state information into headlight signals conforming to the CAN bus protocol and sends them to the composite lamp control circuit connected to the bus via the CAN bus network.

[0042] The composite lamp control circuit receives and parses the vehicle lamp signals, determines whether to enter the warning light display mode or the charging indicator light display mode based on the parsing result, and sends corresponding strategy commands to the composite lamp driver chip. The MCU inside the composite lamp control circuit parses the received CAN messages. Specific identifiers in the messages can be used to distinguish the functional modes. For example, if the parsed signal is a welcome trigger signal (such as vehicle unlocking), it determines to enter the warning light display mode; if the parsed signal is a charging status signal, it determines to enter the charging indicator light display mode.

[0043] Both the first and second composite lights contain matrix LED light sources and are controlled by the composite light driver chip to perform welcoming dynamic effects or segmented power level dynamic indication effects. The first and second composite lights are two sets of light assemblies with different physical locations on the vehicle, such as the left and right sides of the front of the vehicle, or different positions in the charging port cover area, to achieve richer dynamic effects.

[0044] In some embodiments of the present invention, the composite lamp control circuit includes an MCU and a composite lamp driver chip. The MCU and the composite lamp driver chip exchange instructions via a custom communication protocol based on serial communication to control the on / off timing of each channel in the matrix LED light source. This custom communication protocol can be a custom protocol based on a general serial interface such as SPI or UART, and the communication frequency is adapted according to system resources to ensure the real-time performance of instruction transmission.

[0045] In some embodiments of the present invention, the first and second composite lamps together comprise 208 LED light sources, divided into 62 independently controllable channels, each of which can be individually controlled to turn on and off. The strategy instructions are used to control the conduction timing and duration of each channel. Driven by the composite lamp driver chip, the LED light sources achieve various complex welcome patterns and charging indication modes through different combinations of lighting timings.

[0046] A second aspect of this invention provides a control method for a combined automotive charging indicator and sign light circuit, applied to the implementation described above. For example... Figure 2 As shown, the control method specifically includes steps S10 to S40.

[0047] Step S10: The composite lamp control circuit receives the vehicle lamp signal sent by the vehicle controller via the CAN bus.

[0048] In step S20, the composite lamp control circuit analyzes the vehicle lamp signal and determines whether to enter the marker light display mode or the charging indicator light display mode based on the analysis result.

[0049] In step S30, in response to entering the sign light display mode, the composite light control circuit sends a first strategy instruction to the composite light driver chip to control the matrix LED light source in the first composite light and the second composite light to perform a welcoming dynamic effect.

[0050] In step S40, in response to entering the charging indicator display mode, the composite lamp control circuit sends a second strategy instruction to the composite lamp driver chip to control the matrix LED light source in the first composite lamp and the second composite lamp to perform a segmented dynamic power indication effect.

[0051] Through the above-described solution, the embodiments of the present invention can reuse the same set of matrix LED lights, intelligently switch working modes according to the vehicle scene, realize the integration of signage and charging indication functions, and enhance the technological feel of human-vehicle interaction and improve user experience through dynamic flowing effects.

[0052] In some embodiments of the present invention, the sign light display modes include a constant-on mode and a sequential lighting mode. In step S20, the composite lamp control circuit parses the welcome command in the vehicle light signal to determine whether to enter the constant-on mode or the sequential lighting mode.

[0053] Specifically, the vehicle controller sends headlight signals containing specific identifiers to distinguish different modes. For example, CAN message ID 0x301 can be defined as a headlight control frame, and the first byte Data[0] of its data field carries the welcome mode command: when Data[0]=0x01, it represents the constant-on mode command; when Data[0]=0x02, it represents the sequential lighting mode command. After the composite lamp control circuit parses the corresponding value, it can determine which specific mode to enter. This explicit command distinction based on bus signals ensures the accuracy and real-time performance of the system response.

[0054] In some embodiments of the present invention, in the flowing light mode, in response to entering the flowing light mode, all designated LED light sources of the first composite lamp and the second composite lamp are controlled to be lit in a grouped sequence according to a preset first timing sequence, and remain constantly lit after all are lit, until a shutdown signal is received and the entire system is turned off. The shutdown signal, namely the ritual shutdown signal, refers to the instruction sent by the vehicle controller through the CAN bus after detecting that the vehicle is locked or the welcome timeout has expired, for example, by sending 0x00 through the Data[1] byte of ID 0x301.

[0055] Specifically, the preset first timing sequence can be to arrange the lighting order of the first and second composite lights as a whole. For example, 208 LEDs can be physically arranged into 62 groups. Starting from the first group, one group is lit up at intervals of one time slice, forming a visual effect of the light strip gradually extending and eventually all of them being lit. Once all of them are lit, they remain in this fully lit state until the user locks the car and leaves or the timeout period expires. At this time, the vehicle controller sends a shutdown signal, and all LEDs immediately turn off synchronously, completing a full welcome process.

[0056] As another possible embodiment, the flowing light pattern can also be a coordinated flowing light pattern. In response to entering the flowing light pattern, the first composite light and the second composite light are controlled to illuminate in a coordinated flowing light pattern according to a preset second timing sequence, wherein the first composite light illuminates before the second composite light, creating a dynamic welcoming effect flowing from one side to the other. In this embodiment, the flowing effect transitions between the two lights. For example, the light first illuminates and flows from the first composite light located on the left, then smoothly transitions to the second composite light located on the right, creating a visual effect of a light stream sweeping across the front of the vehicle, enhancing the sense of ceremony and recognizability of the welcoming effect.

[0057] In some embodiments of the present invention, the core technical solutions in the charging mode are defined in detail. The segmented dynamic power indication effect in step S40 specifically includes: parsing the real-time power information of the vehicle contained in the vehicle light signal; when the real-time power of the vehicle is in the first preset range, controlling the second composite lamp to perform a sequential lighting effect.

[0058] For example, the first preset range can be set to 1%-33%, where only the LEDs of the second composite lamp perform the flowing effect, while the first composite lamp remains off. When the real-time battery level of the vehicle is in the second preset range, the second composite lamp and a portion of the first composite lamp are controlled to jointly perform the flowing lighting effect, with the lower limit of the battery level in the second preset range being higher than the upper limit of the battery level in the first preset range. For example, the second preset range can be set to 34%-66%, where all the LEDs of the second composite lamp and the first half of the LEDs of the first composite lamp participate in the flowing lighting. When the real-time battery level of the vehicle is in the third preset range, the second composite lamp and all the first composite lamps are controlled to jointly perform the flowing lighting effect, with the lower limit of the battery level in the third preset range being higher than the upper limit of the battery level in the second preset range. For example, the third preset range can be set to 67%-100%, at which point all the LEDs of all lamps are activated, forming a complete dynamic flowing effect to inform the user that the battery level is at a high level.

[0059] In some specific embodiments of the present invention, the flowing light effect in any of the above-mentioned charging flow effects is a dynamically cyclical flowing light effect until the real-time power level of the vehicle jumps to the next preset interval, or a charging end signal is received from the vehicle controller. Before the power level reaches the next threshold, the flowing light effect will cycle. The charging end signal can be a CAN message sent by the vehicle controller when it detects that the charging gun has been unplugged or the power level has reached 100%, such as Data[0]=0xFF of ID 0x302.

[0060] In a specific embodiment of the present invention, the hardware architecture and control timing of the matrix LED light source are described in detail. The first composite lamp and the second composite lamp together contain 208 LED light sources, which are divided into 62 independently controllable channels. Each channel can achieve individual on / off control. Under this architecture, the flowing lighting effect in any of the above embodiments can be achieved as follows: a group of lamps is lit every 40 milliseconds, and a group of lamps consists of 4 LEDs from at least one channel. Starting from the first group being lit, each group is lit sequentially until all 62 groups are lit, and the entire flowing lighting action is completed within 2440 milliseconds. If in welcome mode, it remains constantly lit until a shutdown signal is received; if in charging mode, the flowing process is cycled according to the battery level. Upon receiving a ceremonial shutdown signal, the entire module immediately turns off.

[0061] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.

Claims

1. A method for implementing a composite light for car charging indication and sign, characterized in that, include: Vehicle controller, composite lamp control circuit, first composite lamp and second composite lamp; The vehicle controller is used to send vehicle light signals to the composite lamp control circuit via the CAN bus; The composite lamp control circuit is used to receive and analyze the vehicle lamp signal, determine whether to enter the marker light display mode or the charging indicator light display mode based on the analysis result, and send the corresponding strategy instruction to the composite lamp driver chip. Both the first composite lamp and the second composite lamp are equipped with a matrix LED light source inside, which is controlled by the composite lamp driver chip to perform a welcome dynamic effect or a segmented power dynamic indication effect.

2. The implementation method of the composite light for vehicle charging indication and sign according to claim 1, characterized in that, The composite lamp control circuit includes an MCU and a composite lamp driver chip. The MCU and the composite lamp driver chip interact with each other through a custom communication protocol based on serial communication to control the on / off timing of each channel in the matrix LED light source.

3. The implementation method of the composite light for vehicle charging indication and sign according to claim 1, characterized in that, The first composite lamp and the second composite lamp together contain 208 LED light sources, which are divided into 62 independent and controllable channels, each of which can be controlled to turn on and off individually. The strategy instructions are used to control the conduction timing and duration of each channel.

4. A control method for a composite light circuit for an automotive charging indicator and sign, applied to the implementation described in any one of claims 1 to 3, characterized in that, include: The composite lamp control circuit receives the vehicle lamp signal sent by the vehicle controller via the CAN bus; The composite lamp control circuit analyzes the vehicle lamp signal and determines whether to enter the marker light display mode or the charging indicator light display mode based on the analysis result. In response to entering the sign light display mode, the composite light control circuit sends a first strategy instruction to the composite light driver chip to control the matrix LED light sources in the first composite light and the second composite light to perform a welcoming dynamic effect; In response to entering the charging indicator display mode, the composite lamp control circuit sends a second strategy command to the composite lamp driver chip to control the matrix LED light sources in the first and second composite lamps to perform a segmented dynamic power indication effect.

5. The control method for the automotive charging indicator and sign composite light circuit according to claim 4, characterized in that, The indicator light display modes include constant light mode and sequential light mode; The composite lamp control circuit analyzes the welcome instruction in the vehicle light signal to determine whether to enter the constant light mode or the sequential lighting mode; wherein, the welcome instruction is a specific identifier in the vehicle light signal, used to distinguish between constant light triggering and sequential lighting triggering.

6. The control method for the automotive charging indicator and sign composite light circuit according to claim 5, characterized in that, In response to entering the flowing lighting mode, all designated LED light sources of the first composite lamp and the second composite lamp are controlled to be lit in a grouped sequence according to a preset first timing sequence, and remain lit after all of them are lit, until a shutdown signal is received and the entire system is turned off.

7. The control method for the automotive charging indicator and sign composite light circuit according to claim 5, characterized in that, In response to entering the flowing light mode, the first composite light and the second composite light are controlled to illuminate in a coordinated flowing manner according to a preset second timing sequence, wherein the first composite light starts to light up before the second composite light to form a dynamic welcoming effect flowing from one side to the other.

8. The control method for the automotive charging indicator and sign composite light circuit according to claim 4, characterized in that, The segmented dynamic power indication effect specifically includes: Analyze the real-time vehicle battery information contained in the headlight signals; When the real-time battery level of the vehicle is in the first preset range, the second composite light is controlled to perform a sequential lighting effect; When the real-time battery level of the vehicle is in the second preset range, the second composite lamp and a portion of the first composite lamp are controlled to jointly perform a sequential lighting effect, and the lower limit of the battery level in the second preset range is higher than the upper limit of the battery level in the first preset range. When the real-time battery level of the vehicle is within the third preset range, the second composite lamp and the first composite lamp are controlled to perform a continuous lighting effect. The lower limit of the battery level in the third preset range is higher than the upper limit of the battery level in the second preset range.

9. The control method for the automotive charging indicator and sign composite light circuit according to claim 8, characterized in that, All of the aforementioned flowing light effects are dynamic, cyclical flowing light effects, until the real-time battery level of the vehicle changes to the next preset range, or a charging end signal is received from the vehicle controller.

10. The control method for the automotive charging indicator and sign composite light circuit according to claim 6 or 7, characterized in that, The sequential lighting involves lighting up a group of LEDs every 40 milliseconds, with each group of LEDs corresponding to at least one channel, and all LEDs are lit up within 2440 milliseconds.

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