A headlamp control system
By combining the SOC control module with cameras and millimeter-wave radar, unified control of headlights and taillights is achieved, solving the problem of insufficient MCU processing power, improving control accuracy and real-time performance, enhancing driving safety and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU XINGYU AUTOMOTIVE LIGHTING SYST CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-19
AI Technical Summary
Existing headlight control systems are controlled by MCUs, which have limited processing capabilities and are unable to handle complex calculations and multitasking, resulting in insufficient control accuracy and real-time performance. Furthermore, they cannot achieve unified control of headlights and taillights, leading to high production costs.
The system employs a SOC control module combined with a camera and millimeter-wave radar. The SOC control module receives road and obstacle information, controls the headlight system, and communicates with the LDM module and LED driver module through the CAN module to achieve unified control of the headlights and taillights.
It improves the control precision and real-time performance of the headlight system, reduces blind spots, enhances driving safety, and reduces production costs through unified control.
Smart Images
Figure CN224375453U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a headlight control system and belongs to the field of automotive lighting technology. Background Technology
[0002] Currently, the commonly used headlight control system uses an MCU to control the lights. The MCU receives control signals from the vehicle's domain controller and controls the headlights to turn on and off and to flash sequentially.
[0003] In existing technologies, when using MCUs to control lighting fixtures, the limited processing power and single functionality of MCUs make it difficult to handle complex calculations and multitasking. As the functions of automotive headlights continue to increase, real-time analysis and processing of large amounts of sensor data is required. MCUs cannot meet the demands for data processing capabilities and response speed, thus affecting the control accuracy and real-time performance of the headlight system. MCUs also cannot achieve unified control of the entire headlight and taillight system, resulting in low efficiency and inconvenience. Furthermore, the low integration level of MCUs hinders cost savings in production. 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 a headlight control system that controls the entire headlight through a SOC control module. This system can control the entire system more accurately in combination with the external scene, making it more efficient and convenient. The SOC control module has stronger processing power and higher integration, and can also control the rearlight system at the same time, which helps to save costs.
[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:
[0006] This utility model provides a headlight control system, which includes a camera, a millimeter-wave radar, a SOC control module, a first LDM module, a second LDM module, a first LED driver module, a second LED driver module, a first auxiliary high / low beam module, a second auxiliary high / low beam module, a first high / low beam module, and a second high / low beam module.
[0007] The camera is used to collect information about the road and environment in front of the vehicle, and the millimeter-wave radar is used to detect obstacles in front of the vehicle. The output terminals of the camera and the millimeter-wave radar are connected to the input terminal of the SOC control module.
[0008] The SOC control module communicates with the first LDM module, the output of the first LDM module is connected to the first high and low beam module, the first LDM module also communicates with the first LED driver module, and the output of the first LED driver module is connected to the first auxiliary high and low beam module.
[0009] The first LDM module communicates with the second LDM module, the output of the second LDM module is connected to the second high / low beam module, the second LDM module also communicates with the second LED driver module, and the output of the second LED driver module is connected to the second auxiliary high / low beam module.
[0010] Furthermore, it also includes a first communication module, through which the SOC control module communicates with the first LDM module.
[0011] Furthermore, the first communication module includes a first CAN module and a second CAN module. The SOC control module communicates with the second CAN module through the first CAN module, and the second CAN module communicates with the first LDM module.
[0012] Furthermore, it also includes a second communication module, through which the first LDM module communicates with the first LED driver module.
[0013] Furthermore, the second communication module includes a third CAN module and a fourth CAN module. The first LDM module communicates with the fourth CAN module through the third CAN module, and the fourth CAN module communicates with the first LED driver module.
[0014] Furthermore, it also includes a third communication module, through which the first LDM module communicates with the second LDM module.
[0015] Furthermore, the third communication module includes a fifth CAN module and a sixth CAN module. The first LDM module communicates with the sixth CAN module through the fifth CAN module, and the sixth CAN module communicates with the second LDM module.
[0016] Furthermore, it also includes a fourth communication module, through which the second LDM module communicates with the second LED driver module.
[0017] Furthermore, the fourth communication module includes a seventh CAN module and an eighth CAN module. The second LDM module communicates with the eighth CAN module through the seventh CAN module, and the eighth CAN module communicates with the second LED driver module.
[0018] Furthermore, it also includes a rearlight system that communicates with the SOC control module.
[0019] By adopting the above technical solution, this utility model has the following beneficial effects:
[0020] The SOC control module receives information about the road and environment ahead, obstacles ahead, and lighting control signals from the vehicle's domain control system. By controlling the entire headlight system through the SOC control module, it can more precisely control the entire system in conjunction with the external scene, helping the driver better observe the surrounding environment, reducing blind spots, and improving efficiency, convenience, and driving safety. The SOC control module has stronger processing power and higher integration, enabling more complex lighting functions. The SOC control module can also simultaneously control the rearlight system, achieving unified control and saving costs. Sending lighting control signals from the first LDM module to the second LDM module saves computing power for the SOC control module. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the headlight control system of this utility model.
[0022] Figure 2 This is a circuit diagram of the headlight control system of this utility model;
[0023] Figure 3 This is the circuit schematic diagram of the SOC control module of this utility model;
[0024] Figure 4 This is the circuit schematic diagram of the first LDM module of this utility model;
[0025] Figure 5 This is the circuit schematic diagram of the second LDM module of this utility model;
[0026] Figure 6 The circuit schematics are for the first CAN module, the second CAN module, the third CAN module and the fourth CAN module of this utility model.
[0027] Figure 7 The circuit diagrams are of the fifth, sixth, seventh, and eighth CAN modules of this utility model. Detailed Implementation
[0028] 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.
[0029] like Figure 1As shown, this embodiment provides a headlight control system, which includes a camera, a millimeter-wave radar, a SOC control module, a first LDM module, a second LDM module, a first LED driver module, a second LED driver module, a first auxiliary high / low beam module, a second auxiliary high / low beam module, a first high / low beam module, a second high / low beam module, a first communication module, a second communication module, a third communication module, and a fourth communication module.
[0030] like Figure 2 As shown, in this embodiment, the camera is used to collect information about the road and environment in front of the vehicle, and the millimeter-wave radar is used to detect obstacles in front of the vehicle. The output terminals of the camera and the millimeter-wave radar are connected to the input terminal of the SOC control module. Thus, the entire headlight is controlled by the SOC control module. The SOC control module receives information about the road and environment in front of the vehicle, information about obstacles in front of the vehicle, and light control signals sent by the vehicle body domain control system. It can combine external scene information to more accurately control the entire system, help the driver better observe the surrounding environment, reduce blind spots, and make the system more efficient and convenient, while improving the driving safety of the driver.
[0031] like Figure 2 As shown, in this embodiment, the SOC control module communicates with the first LDM module through a first communication module. The output of the first LDM module is connected to the first high / low beam module. The first LDM module also communicates with the first LED driver module through a second communication module. The output of the first LED driver module is connected to the first auxiliary high / low beam module. Thus, the SOC control module sends a lighting control signal to the first LDM module through the first communication module. The first LDM module drives the first high / low beam module to light up according to the lighting control signal. The first LDM module also controls the first LED driver module according to the lighting control signal, and then the first LED driver module drives the first auxiliary high / low beam module to light up. Compared to the high / low beam module, the auxiliary high / low beam module has a more complex function and can achieve more intelligent automatic adjustment. Therefore, by adding the first LED driver module to drive the auxiliary high / low beam module, it has stronger driving capability and flexibility.
[0032] Specifically, the first communication module in this embodiment includes a first CAN module and a second CAN module. The SOC control module communicates with the second CAN module through the first CAN module, and the second CAN module communicates with the first LDM module. The second communication module includes a third CAN module and a fourth CAN module. The first LDM module communicates with the fourth CAN module through the third CAN module, and the fourth CAN module communicates with the first LED driver module.
[0033] like Figure 2As shown, in this embodiment, the first LDM module communicates with the second LDM module through a third communication module. The output of the second LDM module is connected to the second high / low beam module. The second LDM module also communicates with the second LED driver module through a fourth communication module, and the output of the second LED driver module is connected to the second auxiliary high / low beam module. Thus, the first LDM module sends a lighting control signal to the second LDM module through the third communication module. The second LDM module then drives the second high / low beam module to illuminate according to the lighting control signal. The second LDM module also controls the second LED driver module according to the lighting control signal, and then the second LED driver module drives the second auxiliary high / low beam module to illuminate. By sending the lighting control signal from the first LDM module to the second LDM module, the computing power of the SOC control module can be saved.
[0034] Specifically, the third communication module in this embodiment includes a fifth CAN module and a sixth CAN module. The first LDM module communicates with the sixth CAN module through the fifth CAN module, and the sixth CAN module communicates with the second LDM module. The fourth communication module includes a seventh CAN module and an eighth CAN module. The second LDM module communicates with the eighth CAN module through the seventh CAN module, and the eighth CAN module communicates with the second LED driver module.
[0035] like Figure 2 As shown, the SOC control module in this embodiment can also simultaneously control the taillight system, which includes a fifth communication module, an MCU module, turn signals, brake lights, and reversing lights. The SOC control module communicates with the MCU module through the fifth communication module. The output of the MCU module is connected to the turn signals, brake lights, and reversing lights, respectively, and the MCU module is used to control the illumination of the turn signals, brake lights, and reversing lights. Therefore, the SOC control module sends headlight control signals to the MCU module based on information about the road and environment ahead of the vehicle, information about obstacles ahead of the vehicle, and the lighting control signals sent by the vehicle body domain control system. The SOC control module provides unified control of both the headlight and taillight systems, which helps to save costs.
[0036] Specifically, the fifth communication module in this embodiment includes a ninth CAN module and a tenth CAN module. The SOC control module communicates with the tenth CAN module through the ninth CAN module, and the tenth CAN module communicates with the MCU module.
[0037] Specifically, such as Figure 3 , 4As shown in Figure 5, the SOC control module U1 in this embodiment can use the LQ560V100 chip, which includes modules such as EMMC, LPDDR4, LVDS, DERSERIALIER, and SERILIALIZER. The first LDM module U2 and the second LDM module U3 in this embodiment can use the FS32K144ULT0VLHT chip. The first LED driver module and the second LED driver module in this embodiment can use the Keboda LED-Leimo PLUS MXB, which includes 12 constant current channels, 4 high-side switches, 1 private CAN, and 2 motor drivers. The communication modules in this embodiment can all use the TCAN1044.
[0038] Specifically, such as Figure 3 , 4 As shown in Figures 5, 6, and 7, pin V19 of the SOC control module U1 is connected to pin 1 of the first CAN module U4; pin V20 of the SOC control module U1 is connected to pin 4 of the first CAN module U4; pin 7 of the first CAN module U4 is connected to pin 4 of the second CAN module U5; pin 6 of the first CAN module U4 is connected to pin 1 of the second CAN module U5; pin 7 of the second CAN module U5 is connected to pin 28 of the first LDM module U2; pin 6 of the second CAN module U5 is connected to pin 27 of the first LDM module U2. Pin 21 of the first LDM module U2 is connected to pin 4 of the third CAN module U6; pin 20 of the first LDM module U2 is connected to pin 1 of the third CAN module U6; pin 7 of the third CAN module U6 is connected to pin 4 of the fourth CAN module U7; and pin 6 of the third CAN module U6 is connected to pin 1 of the fourth CAN module U7. Pin 52 of the first LDM module U2 is connected to pin 4 of the fifth CAN module U8. Pin 52 of the first LDM module U2 is connected to pin 1 of the fifth CAN module U8. Pin 7 of the fifth CAN module U8 is connected to pin 4 of the sixth CAN module U9. Pin 6 of the fifth CAN module U8 is connected to pin 1 of the sixth CAN module U9. Pin 7 of the sixth CAN module U9 is connected to pin 21 of the second LDM module U3. Pin 6 of the sixth CAN module U9 is connected to pin 20 of the second LDM module U3. Pin 28 of the second LDM module U3 is connected to pin 4 of the seventh CAN module U10. Pin 27 of the second LDM module U3 is connected to pin 1 of the seventh CAN module U10. Pin 7 of the seventh CAN module U10 is connected to pin 4 of the eighth CAN module U11. Pin 6 of the seventh CAN module U10 is connected to pin 1 of the eighth CAN module U11.
[0039] The working principle of this utility model is as follows:
[0040] The SOC control module receives and processes information from the camera about the road and environment ahead of the vehicle, information from millimeter-wave radar about obstacles ahead of the vehicle, and signals from the vehicle body domain control system. Then, it sends a headlight control signal to the first LDM module via the first communication module. The first LDM module drives the first high / low beam module to illuminate based on the headlight control signal. The first LDM module also controls the first LED driver module based on the headlight control signal, which in turn illuminates the first auxiliary high / low beam module. The first LDM module then sends the headlight control signal to the second LDM module, which drives the second high / low beam module to illuminate based on the headlight control signal. The second LDM module also controls the second LED driver module based on the headlight control signal, which in turn illuminates the second auxiliary high / low beam module. Finally, the SOC control module sends a headlight control signal to the MCU module via the fifth communication module. The MCU module then controls the turn signals, brake lights, and reversing lights to illuminate based on the headlight control signal.
[0041] The SOC control module receives information about the road and environment ahead, obstacles ahead, and lighting control signals from the vehicle's domain control system. By controlling the entire headlight system through the SOC control module, it can more precisely control the entire system in conjunction with the external scene, helping the driver better observe the surrounding environment, reducing blind spots, and improving efficiency, convenience, and driving safety. The SOC control module has stronger processing power and higher integration, enabling more complex lighting functions. The SOC control module can also simultaneously control the rearlight system, achieving unified control and saving costs. Sending lighting control signals from the first LDM module to the second LDM module saves computing power for the SOC control module.
[0042] 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 headlamp control system characterized by comprising: It includes a camera, millimeter-wave radar, SOC control module, first LDM module, second LDM module, first LED driver module, second LED driver module, first auxiliary high / low beam module, second auxiliary high / low beam module, first high / low beam module and second high / low beam module; The camera is used to collect information about the road and environment in front of the vehicle, and the millimeter-wave radar is used to detect obstacles in front of the vehicle. The output terminals of the camera and the millimeter-wave radar are connected to the input terminal of the SOC control module. The SOC control module communicates with the first LDM module, the output of the first LDM module is connected to the first high and low beam module, the first LDM module also communicates with the first LED driver module, and the output of the first LED driver module is connected to the first auxiliary high and low beam module. The first LDM module communicates with the second LDM module, the output of the second LDM module is connected to the second high / low beam module, the second LDM module also communicates with the second LED driver module, and the output of the second LED driver module is connected to the second auxiliary high / low beam module.
2. The headlamp control system of claim 1, wherein It also includes a first communication module, through which the SOC control module communicates with the first LDM module.
3. The headlamp control system of claim 2, wherein The first communication module includes a first CAN module and a second CAN module. The SOC control module communicates with the second CAN module through the first CAN module, and the second CAN module communicates with the first LDM module.
4. The headlamp control system of claim 1, wherein It also includes a second communication module, through which the first LDM module communicates with the first LED driver module.
5. The headlight control system according to claim 4, characterized in that, The second communication module includes a third CAN module and a fourth CAN module. The first LDM module communicates with the fourth CAN module through the third CAN module, and the fourth CAN module communicates with the first LED driver module.
6. The headlight control system according to claim 1, characterized in that, It also includes a third communication module, through which the first LDM module communicates with the second LDM module.
7. The headlight control system according to claim 6, characterized in that, The third communication module includes a fifth CAN module and a sixth CAN module. The first LDM module communicates with the sixth CAN module through the fifth CAN module, and the sixth CAN module communicates with the second LDM module.
8. The headlight control system according to claim 1, characterized in that, It also includes a fourth communication module, through which the second LDM module communicates with the second LED driver module.
9. The headlight control system according to claim 8, characterized in that, The fourth communication module includes a seventh CAN module and an eighth CAN module. The second LDM module communicates with the eighth CAN module through the seventh CAN module, and the eighth CAN module communicates with the second LED driver module.
10. The headlight control system according to claim 1, characterized in that, It also includes a rearlighting system that communicates with the SOC control module.