A vehicle ambient light control system and vehicle

Abstract

The utility model discloses a vehicle-mounted atmosphere lamp control system and vehicle relates to vehicle-mounted atmosphere lamp technical field. Vehicle-mounted atmosphere lamp control system includes: car body gateway and atmosphere lamp holder, and car body gateway is configured as the communication pivot, and the LIN transceiver module of atmosphere lamp holder is connected with car body gateway through LIN bus. Or car body gateway and multiple atmosphere lamp holders, and multiple atmosphere lamp holders are in turn connected in series, wherein, any atmosphere lamp holder is integrated with LIN transceiver module, RGB LED and microcontroller, and the LIN transceiver module of atmosphere lamp holder located at the first node is connected with car body gateway through LIN bus with the LIN transceiver module of atmosphere lamp holder located at the last node, and the LIN transceiver module of any atmosphere lamp holder located at the intermediate node is connected with the LIN transceiver module of adjacent atmosphere lamp holder. Through adopting the technology provided by the utility model, the communication delay caused by too many intermediate hardware facilities is reduced.

Description

Technical Field

[0001] This utility model relates to the field of vehicle ambient lighting technology, specifically to a vehicle ambient lighting control system and a vehicle. Background Technology

[0002] LIN (Local Interconnect Network) is a low-cost serial communication system with relatively simple hardware implementation, requiring only a single bus for communication. Therefore, it offers advantages in automotive ambient lighting applications due to its low cost and easy wiring. Its main connection methods are as follows: Figure 1 As shown, Figure 1 This is a block diagram illustrating the automatic addressing of ambient lights in a vehicle, representing an embodiment of the LIN protocol used in the prior art.

[0003] Data from the LIN bus is converted via the vehicle gateway (GW) and transmitted to the LIN ambient lighting master controller connected to the GW. The LIN ambient lighting master controller connects to all ambient light heads, managing and controlling them to emit different colors of ambient lighting effects according to pre-set instructions. Specifically, each ambient light head consists of an LED driver and RGB LEDs. However, this master-controlled vehicle ambient lighting system places high demands on the configuration of the LIN ambient lighting master controller, and the data transmission rate of the LIN protocol is limited. This means that when the LIN ambient lighting master controller needs to control multiple ambient light heads, the response time of each head may be affected by the status of other heads, resulting in a longer overall response time. Currently, the mainstream design trend for vehicle ambient lighting places higher demands on its real-time performance and ability to integrate with music rhythms. Utility Model Content

[0004] This invention provides a vehicle ambient lighting control system and vehicle to solve the problem of prolonged response time of vehicle ambient lighting in the prior art.

[0005] To solve the above-mentioned technical problems, in a first aspect, the present invention provides a vehicle ambient lighting control system, which includes a vehicle body gateway and an ambient light head. The vehicle body gateway is configured as a communication hub. The ambient light head integrates a LIN transceiver module, an RGB LED, and a microcontroller. The LIN transceiver module of the ambient light head is connected to the vehicle body gateway via a LIN bus.

[0006] Alternatively, a vehicle body gateway and multiple ambient light heads are connected in series. Each ambient light head integrates a LIN transceiver module, an RGB LED, and a microcontroller. The LIN transceiver modules of the ambient light head located at the first node and the ambient light head located at the last node are connected to the vehicle body gateway via the LIN bus. The LIN transceiver module of any ambient light head located at an intermediate node is connected to the LIN transceiver module of the adjacent ambient light head.

[0007] The beneficial effects of the technical solution provided by this utility model compared to the prior art are as follows: By integrating a LIN transceiver module into each ambient light head, each ambient light head operates as an independently addressable LIN slave node. That is, each ambient light head can directly receive instructions from the vehicle's gateway without the need for an additional LIN ambient light master controller. This means that the light panel equipped with the aforementioned ambient light heads can directly emit light according to the gateway instructions, reducing communication delays caused by excessive intermediate hardware.

[0008] Compared to traditional "master-controlled systems," the first, middle, and last ambient light heads of the aforementioned light panel can all communicate directly with the vehicle's LIN bus via a LIN bus. This ensures that if the LIN transceiver module of any ambient light head malfunctions, it will not affect the normal illumination of adjacent connected ambient light heads. In other words, each ambient light head is an independent node, which can be added or removed as needed without reconfiguring the control logic of the vehicle's ambient lighting control system. Furthermore, this LIN bus and ambient light head LIN transceiver module layout effectively enables an automatic addressing mechanism, simplifying node configuration and expansion.

[0009] In some implementations, the microcontroller further includes a LIN signal processing unit and an LED driver unit, wherein the LIN signal processing unit is connected to the LIN transceiver module and the LED driver unit, respectively. Using the above technical solution, the microcontroller integrated into the ambient light head can parse LIN signals and enable the LED driver unit to turn the RGB LEDs on or off according to the LIN signals, providing more advanced lighting effects and functions.

[0010] In some implementations, the vehicle ambient lighting control system also includes a ground wire, to which the ambient light lamp head is connected. By adopting this technical solution, the ground wire design reduces the number of ground wires required, maintains consistent reference points for all ambient light lamp heads on the same light panel to improve communication reliability and stability, and reduces electromagnetic interference on the light panel.

[0011] In some implementations, the LIN bus is cascaded sequentially to the ambient light heads located on the light panel, and the ground wire is sequentially connected to the ambient light heads and the vehicle body gateway. Using this technical solution, the single-wire LIN bus architecture simplifies wiring.

[0012] In some implementations, the ambient light head also integrates a temperature sensor, which is connected to the microcontroller. The temperature sensor is integrated into at least one of the ambient light heads. By employing the above technical solution, the addition of a temperature sensor, combined with thermal compensation control, enhances the display effect of the ambient light head, enabling the RGB LED to maintain the desired color across different temperature ranges.

[0013] In some implementations, the vehicle ambient lighting control system further includes a light panel, with multiple ambient light heads connected in series and arranged on the light panel. The number of ambient light heads on the light panel ranges from 1 to 16. Using the above technical solution, the LIN communication protocol can support automatic addressing of up to 16 nodes. To ensure that each ambient light head on the light panel can be individually identified and automatically controlled, the number of ambient light heads is limited to avoid requiring manual configuration of unnecessary nodes.

[0014] In some implementations, the lamp panel is a flexible printed circuit board. Using the above technical solution, the flexible printed circuit board can be bent and folded as needed to serve as a lamp panel, adapting to the irregular spatial shapes of different vehicle interiors.

[0015] In some implementations, the microcontroller further includes a power conversion unit electrically connected to both the LIN bus transceiver and the RGB LED.

[0016] In some implementations, the LIN transceiver module includes a broadcast automatic transmission mode and a LIN automatic addressing mode. Using this technical solution, the broadcast mode means that LIN information can be sent simultaneously to all connected ambient light heads, while the automatic addressing mode allows the vehicle gateway to send commands to specific ambient light heads. The automatic addressing mode also includes the ability to automatically assign addresses to newly added nodes (such as configuring newly added ambient light heads on the light panel). Based on the broadcast mode and the LIN automatic addressing mode, the aforementioned LIN transceiver module can provide hardware support for the control of the vehicle ambient lighting control system.

[0017] Secondly, this application also provides a vehicle including the aforementioned in-vehicle ambient lighting control system, wherein the vehicle further includes a vehicle body power supply, the vehicle body power supply being electrically connected to the power conversion unit of any ambient light lamp head. Using the above technical solution, the vehicle possesses all the technical features of the aforementioned in-vehicle ambient lighting control system and all the corresponding technical effects, which will not be elaborated upon here. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is a block diagram of the vehicle connection for automatic addressing of ambient lights, based on an embodiment of the LIN protocol in the prior art. Figure 2 This is an automatic configuration vehicle connection block diagram of an embodiment of an in-vehicle ambient lighting control system provided by this utility model; Figure 3 This is a schematic diagram of the connection architecture of an embodiment of an ambient lighting control system provided by this utility model.

[0019] In the picture: 10. Vehicle body gateway; 20. Light panel; 21. LIN bus; 22. Ground wire; 23. Power cable; 30. Ambient light head; 31. LIN transceiver module; 32. RGB LED; 33. Microcontroller. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] It is worth noting that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0022] See Figures 1 to 2 As shown, Figure 1 This diagram illustrates a vehicle connection block diagram for automatic addressing of ambient lights using the LIN protocol, according to an embodiment of the prior art. Figure 2 This application provides an embodiment of an in-vehicle ambient lighting control system, which includes an automatic configuration vehicle connection block diagram.

[0023] In the first aspect, the vehicle ambient lighting control system includes: a vehicle gateway 10 and an ambient light head 30. The vehicle gateway 10 is configured as a communication hub. The ambient light head 30 integrates a LIN transceiver module 31, an RGB LED 32, and a microcontroller 33. The LIN transceiver module 31 of the ambient light head 30 is connected to the vehicle gateway 10 via a LIN bus 21.

[0024] In another embodiment, the vehicle ambient lighting control system includes: a vehicle gateway 10 and multiple ambient light heads 30, which are connected in series and arranged on a light panel 20. Each ambient light head 30 integrates a LIN transceiver module 31, an RGB LED 32, and a microcontroller 33. The LIN transceiver modules 31 of the first and last ambient light heads 30 are connected to the vehicle gateway 10 via a LIN bus 21; the LIN transceiver module 31 of any ambient light head 30 located in an intermediate node is connected to the LIN transceiver module 31 of the adjacent ambient light head 30.

[0025] In this embodiment, by integrating a LIN transceiver module 31 into each ambient light head 30, each ambient light head 30 operates as an independently addressable LIN slave node, which is more efficient than... Figure 1 As shown, the ambient light master controller performs secondary distribution, allowing each ambient light head 30 to directly receive instructions from the vehicle body gateway 10 without the need for an additional LIN ambient light master controller. This means that the light board 20 with the aforementioned ambient light heads 30 can directly turn the RGB LEDs 32 on and off according to the gateway instructions, reducing communication delays caused by too many intermediate hardware facilities.

[0026] For example, compared to the traditional "master control system," the first node ambient light head 30, the middle node ambient light head 30, and the last node ambient light head 30 of the aforementioned light panel 20 can all communicate directly with the vehicle's LIN bus 21 via the LIN bus 21. This means that even if the LIN transceiver module 31 of any ambient light head 30 malfunctions, it will not affect the normal illumination of adjacent connected ambient light heads 30. In other words, each ambient light head 30 is an independent node, which can be added or removed as needed without reconfiguring the control logic of the vehicle's ambient lighting control system. Furthermore, this layout architecture of the LIN bus 21 and the LIN transceiver modules of the ambient light heads 30 effectively enables an automatic addressing mechanism, simplifying node configuration and expansion.

[0027] In some implementations, the LIN transceiver module includes a broadcast automatic transmission mode and a LIN automatic addressing mode. Specifically, the broadcast mode means that LIN information can be sent simultaneously to all connected ambient light heads 30, while the automatic addressing mode allows the vehicle gateway 10 to send commands to specific ambient light heads 30. The automatic addressing mode also includes the ability to automatically assign addresses to newly added nodes (such as configuring newly added ambient light heads 30 on the light panel 20). Based on the broadcast mode and the LIN automatic addressing mode, the aforementioned LIN transceiver module can provide hardware support for the control of the vehicle ambient lighting control system. It is worth noting that the broadcast mode and the automatic addressing mode are conventional information transmission methods used in the prior art for LIN communication architectures, and will not be elaborated upon further in this application.

[0028] For example, the number of ambient light lamp heads 30 on the light panel 20 ranges from 1 to 16. The reason is that the LIN communication protocol can support automatic addressing of up to 16 nodes. In order to ensure that each ambient light lamp head 30 on the light panel 20 can be individually identified and automatically controlled, the number of ambient light lamp heads 30 is limited to avoid unnecessary nodes requiring manual configuration by staff.

[0029] In some implementation schemes, combined Figure 2 As shown, the microcontroller 33 is connected to the LIN transceiver module 31 and the RGB LED 32, respectively. In this embodiment, the microcontroller 33 is integrated into the ambient light head 30 and can parse LIN commands, process more complex control logic and algorithms, and provide more advanced lighting effects and functions.

[0030] For example, RGB LED32 represents a red, green, and blue light-emitting diode, which uses microcontroller 33 to combine the three basic colors of light—red, green, and blue—to produce the desired color effect. For instance, RGB LED32 can be controlled using PWM (Pulse Width Modulation) to achieve independent control of the brightness and color of each LED, thereby enabling precise control of the overall color and brightness of the ambient light head 30.

[0031] In some implementations, the light panel 20 is further provided with a ground wire 22 and a power line 23, and any ambient light lamp head 30 located on the light panel 20 is connected to the ground wire 22 and the power line 23 respectively. In the embodiments of this application, the design of the ground wire 22 can reduce the number of ground wires laid, keep the reference point position of all ambient light lamp heads 30 located on the same light panel 20 consistent to improve communication reliability and stability, and reduce electromagnetic interference of the light panel 20.

[0032] Combination Figure 3 As shown, Figure 3 A schematic diagram of the connection architecture of an embodiment of an ambient lighting control system provided in this application is shown.

[0033] In some implementations, the LIN bus 21 is cascaded with the ambient light head 30 located on the light panel 20, and the ground wire 22 is connected to the ambient light head 30 and the vehicle body gateway 10 in sequence. In this embodiment, the single-wire LIN bus 21 architecture simplifies wiring.

[0034] In some implementations, the light panel 20 also includes a temperature sensor, which is integrated into at least one ambient light lamp head 30 and connected to the microcontroller 33. In this embodiment, the addition of a temperature sensor, combined with thermal compensation control, enhances the display effect of the ambient light lamp head 30. This allows the microcontroller 33 to control the RGB LED 32 to maintain the desired color across different temperature ranges based on the temperature data from the temperature sensor. Specifically, the microcontroller 33 uses a temperature compensation circuit (dynamically adjusting the output current according to temperature changes) based on the LED's temperature compensation mechanism to maintain the LED within a safe operating temperature range. The temperature compensation circuit can be implemented by parallel connection of a positive temperature coefficient (PTC) element and a negative temperature coefficient (NTC) element; this application does not limit this implementation.

[0035] In some implementations, the lamp panel 20 is a flexible printed circuit board. In the embodiments of this application, the flexible printed circuit board can be bent and folded as needed to serve as the lamp panel 20, which can adapt to the design of irregular interior space shapes of different vehicles.

[0036] In some implementations, the microcontroller 33 further includes a power conversion unit electrically connected to the LIN bus transceiver 21 and the RGB LED 32. Exemplarily, the vehicle body power supply voltage is 5V, 12V, or 24V. In this embodiment, the power conversion unit converts different power supply voltages to a suitable operating voltage (e.g., 5V) for the ambient light bulb head 30, ensuring that the vehicle LED is compatible with the power supply voltages of different vehicle models and enhancing its compatibility with various vehicle types.

[0037] Secondly, this application also provides a vehicle including the aforementioned in-vehicle ambient lighting control system. The vehicle further includes a vehicle body power supply, which is electrically connected to the power conversion unit of any ambient lighting lamp head. In the embodiments of this application, the vehicle possesses all the technical features of the aforementioned in-vehicle ambient lighting control system and all the corresponding technical effects, which will not be elaborated upon here.

[0038] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, should be included within the protection scope of this utility model.

Claims

1. A vehicle ambient lighting control system, characterized in that, include: A vehicle gateway, configured as a communication hub; The ambient light head integrates a LIN transceiver module, an RGB LED, and a microcontroller. The LIN transceiver module of the ambient light head is connected to the vehicle gateway via a LIN bus. or Multiple ambient light heads are connected in series. Each ambient light head integrates a LIN transceiver module, an RGB LED, and a microcontroller. The LIN transceiver module of the ambient light head at the first node and the ambient light head at the last node are connected to the vehicle body gateway through the LIN bus. The LIN transceiver module of any of the ambient light heads located at the intermediate node is connected to the LIN transceiver module of the adjacent ambient light head.

2. The vehicle ambient lighting control system according to claim 1, characterized in that, The microcontroller also includes a LIN signal processing unit and an LED driving unit, wherein the LIN signal processing unit is connected to the LIN transceiver module and the LED driving unit, respectively.

3. The vehicle ambient lighting control system according to claim 1, characterized in that, The vehicle ambient lighting control system is also equipped with a ground wire, and the ambient light head is connected to the ground wire.

4. The vehicle ambient lighting control system according to claim 3, characterized in that, The LIN bus is cascaded to the ambient light heads located on the light panel, and the ground wire is connected to the ambient light heads and the vehicle body gateway in sequence.

5. The vehicle ambient lighting control system according to claim 1, characterized in that, The ambient light head also integrates a temperature sensor, which is connected to the microcontroller.

6. The vehicle ambient lighting control system according to claim 1, characterized in that, The vehicle ambient lighting control system also includes a light panel, and multiple ambient light heads are connected in series and arranged on the light panel, wherein the number of ambient light heads on the light panel ranges from 1 to 16.

7. The vehicle ambient lighting control system according to claim 6, characterized in that, The lamp board is a flexible printed circuit board.

8. The vehicle ambient lighting control system according to claim 1, characterized in that, The microcontroller also includes a power conversion unit, which is electrically connected to the LIN bus transceiver and the RGB LED.

9. A vehicle, characterized in that, The vehicle ambient lighting control system includes any one of claims 1 to 8, wherein the vehicle further includes a vehicle body power supply, the vehicle body power supply being electrically connected to a power conversion unit of any ambient lighting head.

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