Automobile external light display angle control system

Abstract

The utility model provides an automobile external light display angle control system, which relates to the technical field of automobile light control and comprises a control module, a gesture acquisition module, a light independent selection switch module, a vehicle posture detection module, an ambient light detection module, a light projection angle servo module and a vehicle environment detection module. The control module comprises a power management unit, a parameter storage unit and an MCU microcontroller. The power management unit is electrically connected with the parameter storage unit, the parameter storage unit is electrically connected with the MCU microcontroller through an I2C interface, and the lamplight partition selection switch module, the lamplight independent selection switch module, the vehicle posture detection module, the ambient light detection module, the lamplight projection angle servo module and the vehicle environment detection module are all electrically connected with the MCU microcontroller. According to the utility model, the system integrates multi-dimensional interaction modes such as gesture recognition, physical touch control, environmental perception, vehicle body dynamic detection and the like, and precision and humanization of light control are realized through a modular architecture.

Description

Technical Field

[0001] This utility model relates to the field of automotive lighting control technology, and in particular to an automotive external lighting display angle control system. Background Technology

[0002] A microcontroller unit (MCU), also known as a single-chip microcomputer or microcontroller, is a chip-level computer that integrates a central processing unit (CPU) with a reduced frequency and specifications. It combines memory, counters, A / D converters, PWM, UART, I2C, SPI, and other peripheral interfaces, along with driver circuitry, all onto a single chip. This allows for different control combinations for various applications. MCUs are found in everything from mobile phones and PC peripherals to remote controls, automotive electronics, and industrial applications such as stepper motor and robotic arm control.

[0003] Currently, commercial vehicle exterior lighting typically falls into two categories: Category 1 uses a combination of manual physical adjustment and an electric motor to adjust the external light beam angle, but this adjustment is limited to the vertical direction and is usually within 5 degrees. Category 2 employs an Adaptive Front-Lighting System (AFS), which automatically adjusts the headlight beam angle as the steering wheel turns, providing both horizontal and vertical adjustment capabilities. Neither of these methods addresses the issues of large size, numerous blind spots, and insufficient localized lighting in commercial vehicles at night. This product utilizes a servo motor to control the vehicle's headlight source. By enabling gesture control switches for relevant lights, the external light beam angle can be adjusted via hand gestures. This solves the problem of insufficient localized lighting in large commercial vehicles, effectively improving driver visibility in low-light conditions and enhancing vehicle safety by reducing the potential risks associated with people moving into blind spots.

[0004] Therefore, a vehicle external lighting display angle control system is proposed. Utility Model Content

[0005] This manual provides a vehicle external lighting display angle control system. The system integrates multiple interaction methods such as gesture recognition, physical touch control, environmental perception, and vehicle dynamic detection. Through a modular architecture, it achieves precise and user-friendly lighting control.

[0006] This manual provides a vehicle external lighting display angle control system, including: a control module, a lighting zone selection switch module, a gesture acquisition module, an independent lighting selection switch module, a vehicle posture detection module, an ambient light detection module, a lighting projection angle servo module, and a vehicle environment detection module;

[0007] The control module includes a power management unit, a parameter storage unit, and an MCU microcontroller. The power management unit is electrically connected to the parameter storage unit, and the parameter storage unit is electrically connected to the MCU microcontroller via an I2C interface. The light zone selection switch module, the gesture acquisition module, the light independent selection switch module, the vehicle posture detection module, the ambient light detection module, the light projection angle servo module, and the vehicle environment detection module are all electrically connected to the MCU microcontroller.

[0008] Optionally, the light zone selection switch module includes a front light selection switch, a left light selection switch, a right light selection switch, and a rear light selection switch. The front light selection switch, the left light selection switch, the right light selection switch, and the rear light selection switch are all electrically connected to the MCU microcontroller through I / O interfaces.

[0009] Optionally, the gesture acquisition module includes a gesture sensor, which is electrically connected to the MCU microcontroller via an I2C interface.

[0010] Optionally, the independent headlight selection switch module includes several independent headlight selection switches, all of which are electrically connected to the MCU microcontroller via I / O interfaces.

[0011] Optionally, the vehicle attitude detection module includes a vehicle attitude sensor and an acceleration sensor, both of which are electrically connected to the MCU microcontroller via an SPI interface.

[0012] Optionally, the ambient light detection module includes an external light sensor and an internal light sensor, both of which are electrically connected to the MCU microcontroller via an I2C interface.

[0013] Optionally, the headlight projection angle servo module includes a left front headlight angle adjustment motor, a right front headlight angle adjustment motor, a left headlight angle adjustment motor, a right headlight angle adjustment motor, a left rear headlight angle adjustment motor, and a right rear headlight angle adjustment motor. The left front headlight angle adjustment motor, the right front headlight angle adjustment motor, the left headlight angle adjustment motor, the right headlight angle adjustment motor, the left rear headlight angle adjustment motor, and the right rear headlight angle adjustment motor are all electrically connected to the MCU microcontroller via a PWM interface.

[0014] Optionally, the vehicle environment detection module includes a front millimeter-wave radar sensor, a right-side millimeter-wave radar sensor, a left-side millimeter-wave radar sensor, and a rear millimeter-wave radar sensor. The front millimeter-wave radar sensor, the right-side millimeter-wave radar sensor, the left-side millimeter-wave radar sensor, and the rear millimeter-wave radar sensor are all electrically connected to the MCU microcontroller via a UART interface.

[0015] Optionally, the parameter storage unit includes a 24C256 EEPROM memory.

[0016] Optionally, the exterior light sensor includes the BH1750 exterior light sensor, and the interior light sensor includes the BH1750 interior light sensor.

[0017] This invention integrates multiple interaction methods, including gesture recognition, physical touch control, environmental perception, and vehicle dynamic detection, achieving precise and user-friendly lighting control through a modular architecture. The gesture acquisition module supports contactless operation, while the lighting zone selection switch and independent selection switch provide physical redundancy control, forming a complementary operating system that significantly improves operational convenience and safety in driving scenarios. The vehicle attitude detection module calculates the vehicle's pitch / roll angle in real time, and combined with multispectral perception data from the ambient light detection module, it dynamically compensates for the headlight projection angle using a linked headlight projection angle servo module, ensuring stable lighting coverage under complex road conditions. An omnidirectional environmental perception network constructed from a millimeter-wave radar array can intelligently identify obstacles and trigger headlight avoidance strategies, enhancing active driving safety. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a vehicle external lighting display angle control system provided in an embodiment of this specification.

[0020] The attached diagrams show: 10, Control Module; 20, Lighting Zone Selection Switch Module; 30, Gesture Acquisition Module; 40, Independent Lighting Selection Switch Module; 50, Vehicle Posture Detection Module; 60, Ambient Light Detection Module; 70, Light Projection Angle Servo Module; 80, Vehicle Environment Detection Module. Detailed Implementation

[0021] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0022] The following is in conjunction with the appendix Figure 1 Exemplary embodiments of the present invention will be described more fully. However, exemplary embodiments can be implemented in many forms and should not be construed as limiting the present invention to the embodiments set forth herein. Rather, these exemplary embodiments are provided to make the present invention more comprehensive and complete, and to facilitate the full communication of the inventive concept to those skilled in the art. The same reference numerals in the figures denote the same or similar elements, components, or parts, and therefore repeated descriptions of them are omitted.

[0023] Subject to the technical concept of this utility model, the features, structures, characteristics or other details described in a particular embodiment may be combined in one or more other embodiments in a suitable manner.

[0024] In the description of specific embodiments, the features, structures, characteristics, or other details described herein are intended to enable those skilled in the art to fully understand the embodiments. However, it is not excluded that those skilled in the art can practice the technical solutions of this utility model without one or more of the specific features, structures, characteristics, or other details.

[0025] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily have to be performed in the described order. For example, some operations / steps can be broken down, while others can be combined or partially combined; therefore, the actual execution order may change depending on the specific circumstances.

[0026] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0027] The terms “and / or” or “and / or” include all combinations of any one or more of the listed items.

[0028] Figure 1 A schematic diagram of a vehicle exterior lighting display angle control system provided in this specification embodiment includes:

[0029] Control module, light zone selection switch module, gesture acquisition module, independent light selection switch module, vehicle posture detection module, ambient light detection module, light projection angle servo module, vehicle environment detection module;

[0030] The control module includes a power management unit, a parameter storage unit, and an MCU microcontroller. The power management unit is electrically connected to the parameter storage unit, and the parameter storage unit is electrically connected to the MCU microcontroller via an I2C interface. The light zone selection switch module, the gesture acquisition module, the light independent selection switch module, the vehicle posture detection module, the ambient light detection module, the light projection angle servo module, and the vehicle environment detection module are all electrically connected to the MCU microcontroller.

[0031] In the specific implementation described in this specification, the control module serves as the core processing unit, coordinating with multiple functional modules to form a complete control architecture. The control module integrates a power management unit, a parameter storage unit, and an MCU microcontroller. The power management unit provides adaptive voltages to each module through multiple voltage regulator circuits. The parameter storage unit uses non-volatile memory to record system operating parameters and establishes bidirectional communication with the MCU via an I2C bus. The MCU microcontroller is a 32-bit automotive-grade chip, integrating a CAN bus interface and a PWM output port.

[0032] The peripheral functions include a headlight zone selection switch module, a gesture acquisition module, an independent headlight selection switch module, a vehicle attitude detection module, an ambient light detection module, a headlight projection angle servo module, and a vehicle environment detection module, all of which interact with the MCU via dedicated interfaces. The headlight zone selection switch module uses a matrix-style touch panel to divide multiple physical control areas; the gesture acquisition module is equipped with a three-dimensional optical sensor array and is located on the top of the cockpit; the vehicle attitude detection module integrates a three-axis gyroscope and an accelerometer to collect vehicle dynamic parameters in real time; the ambient light detection module is arranged around the vehicle body and has a built-in multispectral sensor array; the headlight projection angle servo module includes a stepper motor drive mechanism and an infrared positioning device, forming a closed-loop adjustment system with the headlight assembly.

[0033] Optionally, the light zone selection switch module includes a front light selection switch, a left light selection switch, a right light selection switch, and a rear light selection switch. The front light selection switch, the left light selection switch, the right light selection switch, and the rear light selection switch are all electrically connected to the MCU microcontroller through I / O interfaces.

[0034] In the specific implementation of this specification, the lighting zone selection switch module consists of a headlight selection switch, a left-side headlight selection switch, a right-side headlight selection switch, and a rear headlight selection switch. Each switch uses an independent touch unit encapsulated within a preset zone of the vehicle control panel. The headlight selection switch corresponds to the headlight and fog light control areas. The left-side and right-side headlight selection switches respectively cover the turn signals, side marker lights, and blind spot auxiliary lighting units on the left and right sides of the vehicle. The rear headlight selection switch integrates the control functions of the brake lights, reversing lights, and rear fog lights.

[0035] Optionally, the gesture acquisition module includes a gesture sensor, which is electrically connected to the MCU microcontroller via an I2C interface.

[0036] In the specific implementation of this specification, the gesture acquisition module integrates a high-sensitivity gesture sensor array, which is arranged on an adjustable bracket on the top of the cockpit using three-dimensional optical sensing technology. Its detection range covers the gesture operation areas of the driver and front passenger. The gesture sensor has a built-in infrared light source and a spot tracking unit, and establishes a bidirectional communication link with the MCU microcontroller through an I2C interface to transmit the raw coordinate data of the gesture trajectory in real time.

[0037] Optionally, the independent headlight selection switch module includes several independent headlight selection switches, all of which are electrically connected to the MCU microcontroller via I / O interfaces.

[0038] In the specific implementation of this specification, the independent headlight selection switch module consists of multiple independent headlight selection switches, each corresponding to a single headlight or a group of headlights with related functions. Each switch has a built-in signal isolation circuit and is connected to the MCU microcontroller through an independent I / O interface.

[0039] Optionally, the vehicle attitude detection module includes a vehicle attitude sensor and an acceleration sensor, both of which are electrically connected to the MCU microcontroller via an SPI interface.

[0040] In the specific implementation described in this specification, the vehicle attitude detection module integrates a body attitude sensor and an acceleration sensor. The body attitude sensor is a three-axis MEMS gyroscope encapsulated in a vibration-damping bracket near the vehicle's center of gravity, while the acceleration sensor uses a multi-directional sensing element mounted on a rigid structural part of the vehicle frame. Both sensors establish independent communication channels with the MCU microcontroller via shielded SPI interfaces. The body attitude sensor outputs pitch, roll, and yaw rate data, while the acceleration sensor synchronously acquires linear acceleration information along the X / Y / Z axes, forming a complementary and redundant detection mechanism.

[0041] Optionally, the ambient light detection module includes an external light sensor and an internal light sensor, both of which are electrically connected to the MCU microcontroller via an I2C interface.

[0042] Optionally, the headlight projection angle servo module includes a left front headlight angle adjustment motor, a right front headlight angle adjustment motor, a left headlight angle adjustment motor, a right headlight angle adjustment motor, a left rear headlight angle adjustment motor, and a right rear headlight angle adjustment motor. The left front headlight angle adjustment motor, the right front headlight angle adjustment motor, the left headlight angle adjustment motor, the right headlight angle adjustment motor, the left rear headlight angle adjustment motor, and the right rear headlight angle adjustment motor are all electrically connected to the MCU microcontroller via a PWM interface.

[0043] In the specific implementation described in this specification, the headlight projection angle servo module includes left front, right front, left side, right side, left rear, and right rear headlight angle adjustment motors, corresponding to the mechanical adjustment mechanisms of the vehicle's headlight assembly, side auxiliary lights, and rear warning lights, respectively. Each motor adopts an integrated design of a stepper motor and a planetary gear reducer, with an infrared positioning feedback unit mounted at the end of the output shaft, and the rotation angle is monitored in real time via a high-precision photoelectric encoder. All motors are connected to the MCU microcontroller through independent PWM interfaces, and the drive circuit has a built-in H-bridge topology, supporting bidirectional rotation control and dynamic torque adjustment.

[0044] Optionally, the vehicle environment detection module includes a front millimeter-wave radar sensor, a right-side millimeter-wave radar sensor, a left-side millimeter-wave radar sensor, and a rear millimeter-wave radar sensor. The front millimeter-wave radar sensor, the right-side millimeter-wave radar sensor, the left-side millimeter-wave radar sensor, and the rear millimeter-wave radar sensor are all electrically connected to the MCU microcontroller via a UART interface.

[0045] In the specific implementation of this specification, the vehicle environment detection module consists of a front millimeter-wave radar sensor, a right-side millimeter-wave radar sensor, a left-side millimeter-wave radar sensor, and a rear millimeter-wave radar sensor, which are respectively embedded in the reserved slots behind the vehicle's air intake grille, inside the left and right rearview mirror brackets, and above the license plate frame at the rear of the vehicle. The horizontal opening angle and vertical tilt angle of the sensor detection beams are optimized according to the vehicle's outer contour to form a 360-degree seamless composite detection field.

[0046] Optionally, the parameter storage unit includes a 24C256 EEPROM memory.

[0047] Optionally, the exterior light sensor includes the BH1750 exterior light sensor, and the interior light sensor includes the BH1750 interior light sensor.

[0048] This invention integrates multiple interaction methods, including gesture recognition, physical touch control, environmental perception, and vehicle dynamic detection, achieving precise and user-friendly lighting control through a modular architecture. The gesture acquisition module supports contactless operation, while the lighting zone selection switch and independent selection switch provide physical redundancy control, forming a complementary operating system that significantly improves operational convenience and safety in driving scenarios. The vehicle attitude detection module calculates the vehicle's pitch / roll angle in real time, and combined with multispectral perception data from the ambient light detection module, it dynamically compensates for the headlight projection angle using a linked headlight projection angle servo module, ensuring stable lighting coverage under complex road conditions. An omnidirectional environmental perception network constructed from a millimeter-wave radar array can intelligently identify obstacles and trigger headlight avoidance strategies, enhancing active driving safety.

[0049] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that this utility model is not inherently related to any specific computer, virtual device, or electronic device, and various general-purpose devices can also implement this utility model. 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.

[0050] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0051] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. An automobile exterior light display angle control system characterized by comprising: The application relates to a vehicle light control system, which comprises the following modules: a control module (10), a light partition selection switch module (20), a gesture collection module (30), a light independent selection switch module (40), a vehicle posture detection module (50), an ambient light detection module (60), a light projection angle servo module (70) and a vehicle environment detection module (80). The control module (10) comprises a power management unit, a parameter storage unit and an MCU microcontroller; the power management unit is electrically connected with the parameter storage unit; the parameter storage unit is electrically connected with the MCU microcontroller through an I2C interface; the light partition selection switch module (20), the gesture collection module (30), the light independent selection switch module (40), the vehicle posture detection module (50), the ambient light detection module (60), the light projection angle servo module (70) and the vehicle environment detection module (80) are all electrically connected with the MCU microcontroller. The light partition selection switch module (20) comprises a front vehicle light selection switch, a left side vehicle light selection switch, a right side vehicle light selection switch and a rear vehicle light selection switch; the front vehicle light selection switch, the left side vehicle light selection switch, the right side vehicle light selection switch and the rear vehicle light selection switch are all electrically connected with the MCU microcontroller through an I / O interface.

2. The automobile exterior light display angle control system according to claim 1, wherein The gesture collection module (30) comprises a gesture sensor; the gesture sensor is electrically connected with the MCU microcontroller through an I2C interface.

3. The automobile exterior light display angle control system according to claim 2, wherein The light independent selection switch module (40) comprises a plurality of vehicle light independent selection switches; the plurality of vehicle light independent selection switches are all electrically connected with the MCU microcontroller through an I / O interface.

4. The automobile exterior light display angle control system according to claim 3, wherein The vehicle posture detection module (50) comprises a vehicle body posture sensor and an acceleration sensor; the vehicle body posture sensor and the acceleration sensor are all electrically connected with the MCU microcontroller through an SPI interface.

5. The automobile exterior light display angle control system according to claim 4, wherein The ambient light detection module (60) comprises an outside light quantity sensor and an inside light quantity sensor; the outside light quantity sensor and the inside light quantity sensor are all electrically connected with the MCU microcontroller through an I2C interface.

6. The automobile exterior light display angle control system according to claim 5, wherein The light projection angle servo module (70) comprises a left front vehicle light angle adjustment motor, a right front vehicle light angle adjustment motor, a left side vehicle light angle adjustment motor, a right side vehicle light angle adjustment motor, a left rear vehicle light angle adjustment motor and a right rear vehicle light angle adjustment motor; the left front vehicle light angle adjustment motor, the right front vehicle light angle adjustment motor, the left side vehicle light angle adjustment motor, the right side vehicle light angle adjustment motor, the left rear vehicle light angle adjustment motor and the right rear vehicle light angle adjustment motor are all electrically connected with the MCU microcontroller through a PWM interface.

7. The automobile exterior light display angle control system according to claim 6, wherein ​ 8. The automobile exterior light display angle control system according to claim 7, wherein The vehicle environment detection module (80) comprises a front millimeter wave radar sensor, a right side millimeter wave radar sensor, a left side millimeter wave radar sensor and a rear millimeter wave radar sensor, and the front millimeter wave radar sensor, the right side millimeter wave radar sensor, the left side millimeter wave radar sensor and the rear millimeter wave radar sensor are electrically connected with the MCU microcontroller through a UART interface.

9. The automobile exterior light display angle control system according to claim 1, wherein The parameter storage unit comprises a 24C256 EEPROM memory.

10. The automobile exterior light display angle control system according to claim 8, wherein The outside light quantity sensor comprises a BH1750 outside light quantity sensor, and the inside light quantity sensor comprises a BH1750 inside light quantity sensor.

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