MCU-free car lamp controller system

Abstract

The utility model discloses an MCU-free vehicle lamp controller system, and belongs to the technical field of vehicle lamp controllers. The system comprises an area controller and a vehicle lamp driver. The area controller comprises an MCU module and a first communication module. The vehicle lamp driver comprises an LED power supply and control module, a high-side driving module, a motor driving module and a second communication module. The MCU module communicates with the second communication module through the first communication module, and the second communication module communicates with the high-side driving module and the motor driving module; the LED power supply and control module comprises a Boost module and a Buck module, the second communication module communicates with the Boost module and the Buck module, the Boost module is used for providing constant voltage for the Buck module, and the Buck module is used for supplying power to the lamp panel and communicating with the lamp panel. The MCU-free vehicle lamp controller system provided by the utility model has all functions of a vehicle lamp controller with an MCU, can meet the requirements of a centralized electronic and electrical architecture, reduces the complexity of the vehicle lamp controller system, and improves the reliability of a vehicle lamp electronic system.

Description

Technical Field

[0001] This utility model relates to an MCU-free vehicle lighting controller system, belonging to the field of vehicle lighting controller technology. Background Technology

[0002] Currently, major automakers are launching new automotive electronic and electrical systems, shifting the automotive electronic and electrical architecture from a domain-centralized architecture to a centrally centralized architecture. OEMs have already introduced both area controllers and centrally centralized controllers in new models, representing a significant shift in automotive electronic and electrical architecture. This centrally centralized architecture also presents new demands and challenges for the design of vehicle lighting electronic systems.

[0003] In existing traditional vehicle lighting controllers, the MCU module integrated into the lighting controller controls the Boost module, Buck module, and LED array. However, this traditional lighting controller is no longer suitable for the development requirements of the vehicle's centralized architecture. Therefore, a new lighting controller system must be designed to meet the needs of the centralized architecture. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an MCU-free vehicle lighting controller system that has all the functions of a vehicle lighting controller with an MCU, can adapt to the needs of a centralized electronic and electrical architecture, reduces the complexity of the vehicle lighting controller system, improves the reliability of the vehicle lighting electronic system, and helps to reduce the cost of the vehicle lighting controller.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] This utility model provides an MCU-free vehicle lighting controller system, which includes a zone controller and a vehicle lighting driver;

[0007] The area controller includes an MCU module and a first communication module, and the vehicle light driver includes an LED power supply and control module, a high-side drive module, a motor drive module, and a second communication module.

[0008] The MCU module communicates with the second communication module through the first communication module. The second communication module communicates with the high-side drive module and the motor drive module. The high-side drive module is used to drive the fan to rotate, and the motor drive module is used to drive the motor to run.

[0009] The LED power supply and control module includes a Boost module and a Buck module. The second communication module communicates with the Boost module and the Buck module. The Boost module is used to receive vehicle body power and provide a constant voltage to the Buck module. The Buck module is used to supply power to the lamp panel and communicate with the lamp panel.

[0010] Furthermore, the first communication module and the second communication module are UART serial port modules.

[0011] Furthermore, the first communication module and the second communication module are CAN communication modules.

[0012] Furthermore, the first communication module and the second communication module are Ethernet modules.

[0013] Furthermore, it also includes a fan, which is connected to the output of the high-side drive module.

[0014] Furthermore, it also includes a motor, which is connected to the output terminal of the motor drive module.

[0015] Furthermore, it also includes a light board, which includes an LED driver module and an LED light group. The LED driver module and the LED light group are powered by a Buck module. The Buck module powers the LED driver module and communicates with the LED driver module. The output terminal of the LED driver module is connected to the LED light group.

[0016] Furthermore, the LED driver module includes a matrix chip and a linear chip, the Buck module supplies power to the matrix chip and the linear chip and communicates with the matrix chip and the linear chip, and the output terminals of the matrix chip and the linear chip are connected to the LED lamp group.

[0017] By adopting the above technical solution, this utility model has the following beneficial effects:

[0018] By eliminating the MCU module in a traditional automotive lighting driver and retaining only the LED power supply and control module, high-side drive module, motor drive module, and first communication module, the MCU module in the area controller communicates with these modules to achieve all lighting control functions. This effectively reduces the complexity of the lighting controller system, improves the reliability of the lighting electronics system, adapts to the needs of centralized electronic and electrical architectures, meets the development trend of new vehicle electronic and electrical architectures, and also helps reduce the production cost of the lighting controller. The communication module between the lighting driver and the area controller enables long-distance and high-bandwidth transmission, supporting faster transmission speeds and higher real-time performance. Attached Figure Description

[0019] Figure 1 This is a schematic block diagram of the MCU-free vehicle lighting controller system of this utility model;

[0020] Figure 2 This is the circuit schematic diagram of the Boost module of this utility model;

[0021] Figure 3 This is the circuit schematic diagram of the Buck module of this utility model;

[0022] Figure 4 This is the circuit schematic diagram of the high-side drive module of this utility model;

[0023] Figure 5 This is a circuit diagram of the motor drive module of this utility model. Detailed Implementation

[0024] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0025] Example 1

[0026] like Figure 1 As shown, this embodiment provides an MCU-free vehicle lighting controller system, which includes a zone controller, a vehicle lighting driver, a lamp board, a fan, and a motor.

[0027] like Figure 1 As shown, the area controller in this embodiment includes an MCU module and a first communication module. The MCU module can be a multi-core MCU or an MCU+SoC system. The chip model of the multi-core MCU is Renesas RH850.

[0028] like Figure 1 As shown, the vehicle lighting driver in this embodiment includes a second communication module, an LED power supply and control module, a high-side drive module, and a motor drive module. The MCU module in the traditional vehicle lighting driver is removed, which reduces the design complexity of the vehicle lighting driver, improves the reliability of the vehicle lighting electronic system, minimizes the design, development and production costs of the vehicle lighting electronic system, meets the development trend of automotive electronic and electrical architecture, and is suitable for centralized electronic and electrical architecture.

[0029] Specifically, the MCU module in the area controller communicates with the second communication module through the first communication module. The second communication module communicates with the LED power supply and control module, the high-side drive module, and the motor drive module. The MCU module in the area controller sends headlight control signals, fan control signals, and motor control signals to the LED power supply and control module, the high-side drive module, and the motor drive module, respectively, through the first and second communication modules. The high-side drive module is used to drive the fan to rotate, and the motor drive module is used to drive the motor to run.

[0030] like Figure 1As shown, the LED power supply and control module in this embodiment includes a Boost module and a Buck module. The second communication module communicates with the Boost module and the Buck module. The Boost module is used to receive the power supply from the vehicle body KL30 and provide a constant voltage to the Buck module. The Buck module is used to supply power to the lamp panel and communicate with the lamp panel. The area controller sends vehicle light control signals to the Boost module and the Buck module through the first communication module and the second communication module.

[0031] Specifically, such as Figure 2 and 3 As shown, the Boost module can use the TPS92544-Q1 chip U4, and the Buck module can use the TPS92542-Q1 chip U5. The number of Buck modules depends on the type and number of lamp boards. The Buck module receives the vehicle lighting control signal sent by the area controller through pins 47 and 48 and transmits the vehicle lighting control signal to the lamp board. The Buck module outputs constant current power supply through pin 29 and supplies power to the lamp board.

[0032] like Figure 1 As shown, the light panel in this embodiment includes an LED driver module and an LED light group. The LED driver module and the LED light group are powered by a Buck module. The Buck module powers the LED driver module and communicates with the LED driver module. The output terminal of the LED driver module is connected to the LED light group. The LED light group includes all vehicle lights such as high and low beam headlights, daytime running lights, position lights, turn signals, corner lights, taillights, and ambient lights.

[0033] Specifically, such as Figure 3 As shown, Buck module U5 outputs constant current power through pin 29 and supplies power to the LED driver module and LED lamp group. Buck module U5 sends vehicle light control signals to the LED driver module through pins 47 and 48, and then the LED driver module drives the LED lamp group to light up according to the vehicle light control signals.

[0034] like Figure 1 As shown, the LED driver module in this embodiment includes a matrix chip and a linear chip. The Buck module supplies power to the matrix chip and the linear chip and communicates with them. The output terminals of the matrix chip and the linear chip are connected to the LED lamp group.

[0035] Specifically, such as Figure 3 As shown, Buck module U5 outputs constant current power through pin 29 and supplies power to the matrix chip, linear chip and LED lamp group. Buck module U5 sends vehicle light control signals to the matrix chip and linear chip through pins 47 and 48. Then the matrix chip and linear chip drive the LED lamp group to light up according to the vehicle light control signals.

[0036] like Figure 1As shown, in this embodiment, the fan is connected to the output terminal of the high-side drive module. The high-side drive module drives the fan to rotate according to the fan control signal sent by the area controller. The fan is used to dissipate heat from the lamp panel. Specifically, as shown... Figure 4 As shown, the high-side driver module can use the TPS2HB35 chip U1.

[0037] like Figure 1 As shown, in this embodiment, the motor is connected to the output terminal of the motor drive module. The motor drive module drives the motor to run according to the motor control signal sent by the area controller. The motor is used to adjust the left and right and up and down angles of the vehicle lights. Specifically, as shown... Figure 5 As shown, the motor drive module can use the DRV8434A chip U2.

[0038] In this embodiment, the first and second communication modules are UART serial port modules;

[0039] Specifically, such as Figure 2 and 3 As shown, pins 46 and 47 of Boost module U4 are UART interfaces, and pins 47 and 48 of Buck module U5 are UART interfaces. The UART interface of the area controller is connected to the UART interfaces of Boost module U4 and Buck module U5. Then, Buck module U5 is connected to the matrix chip and linear chip through the UART interface and sends headlight control signals to the matrix chip and linear chip.

[0040] Example 2

[0041] In this embodiment, the first and second communication modules are CAN communication modules, which are CANPHY chips, CAN / CAN FD chips, or CAN FD Light chips.

[0042] Specifically, the CAN / CAN FD chip can support long-distance signal transmission, enabling the area controller to connect to the vehicle light driver via a relatively long cable, and to achieve communication connections between one area controller and multiple LED power supply and control modules, high-side drive modules, and motor drive modules.

[0043] Example 3

[0044] In this embodiment, the first and second communication modules are Ethernet modules. Specifically, the Ethernet module has a transmission rate of 10Mbps. Compared with the UART serial port module and the CAN communication module, the Ethernet module has a higher transmission bandwidth and can support faster transmission speed and higher real-time performance.

[0045] The working principle of this utility model is as follows:

[0046] The MCU module in the area controller sends headlight control signals, fan control signals, and motor control signals to the LED power supply and control module, the high-side drive module, and the motor drive module through the first communication module and the second communication module, respectively. Then, the LED power supply and control module controls the LED drive module according to the headlight control signal, and the LED drive module drives the LED light group to light up according to the headlight control signal. The high-side drive module drives the fan to rotate according to the fan control signal, and the motor drive module drives the motor to run according to the motor control signal.

[0047] By eliminating the MCU module in a traditional automotive lighting driver and retaining only the LED power supply and control module, high-side drive module, motor drive module, and first communication module, the MCU module in the area controller communicates with these modules to achieve all lighting control functions. This effectively reduces the complexity of the lighting controller system, improves the reliability of the lighting electronics system, adapts to the needs of centralized electronic and electrical architectures, meets the development trend of new vehicle electronic and electrical architectures, and also helps reduce the production cost of the lighting controller. The communication module between the lighting driver and the area controller enables long-distance and high-bandwidth transmission, supporting faster transmission speeds and higher real-time performance.

[0048] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A vehicle lighting controller system without an MCU, characterized in that, It includes a zone controller and a headlight driver; The area controller includes an MCU module and a first communication module, and the vehicle light driver includes an LED power supply and control module, a high-side drive module, a motor drive module, and a second communication module. The MCU module communicates with the second communication module through the first communication module. The second communication module communicates with the high-side drive module and the motor drive module. The high-side drive module is used to drive the fan to rotate, and the motor drive module is used to drive the motor to run. The LED power supply and control module includes a Boost module and a Buck module. The second communication module communicates with the Boost module and the Buck module. The Boost module is used to receive vehicle body power and provide a constant voltage to the Buck module. The Buck module is used to supply power to the lamp panel and communicate with the lamp panel.

2. The MCU-free vehicle lighting controller system according to claim 1, characterized in that, The first communication module and the second communication module are UART serial port modules.

3. The MCU-free vehicle lighting controller system according to claim 1, characterized in that, The first communication module and the second communication module are CAN communication modules.

4. The MCU-free vehicle lighting controller system according to claim 1, characterized in that, The first communication module and the second communication module are Ethernet modules.

5. The MCU-free vehicle lighting controller system according to claim 1, characterized in that, It also includes a fan, which is connected to the output of the high-side drive module.

6. The MCU-free vehicle lighting controller system according to claim 1, characterized in that, It also includes a motor, which is connected to the output terminal of the motor drive module.

7. The MCU-free vehicle lighting controller system according to claim 1, characterized in that, It also includes a light panel, which includes an LED driver module and an LED light group. The LED driver module and the LED light group are powered by a Buck module. The Buck module powers the LED driver module and communicates with the LED driver module. The output terminal of the LED driver module is connected to the LED light group.

8. The MCU-free vehicle lighting controller system according to claim 7, characterized in that, The LED driver module includes a matrix chip and a linear chip. The Buck module supplies power to the matrix chip and the linear chip and communicates with them. The output terminals of the matrix chip and the linear chip are connected to the LED lamp group.

Images