A follow-up rearview mirror with adaptive adjustment of the lens

Abstract

This invention relates to the field of commercial vehicle rearview mirror technology, specifically to a follow-up rearview mirror device with adaptive lens adjustment, including a rearview mirror lens and a wide-angle lens. A radar system and a camera are mounted on the rearview mirror lens. The rearview mirror lens and the wide-angle lens are mounted on a mirror arm via an actuator motor. The radar system is electrically connected to a vehicle control unit. The vehicle control unit receives information from steering sensors and reversing sensors, and simultaneously receives the distance between the rearview mirror and the trailer tail detected by the radar system. The vehicle control unit processes the received information using preset vehicle parameters and transmits it to the rearview mirror control module via a CAN bus. The rearview mirror control module drives the actuator motor to adjust the position of the rearview mirror lens according to the input signal, achieving a follow-up field of view function. By installing a position sensor at the seat, the vehicle can automatically adjust the rearview mirror mirror position according to the seat position, improving adjustment efficiency.

Description

Technical Field

[0001] This invention relates to the field of commercial vehicle rearview mirror technology, specifically to a follow-up rearview mirror with adaptive lens adjustment. Background Technology

[0002] Currently, the rearview mirrors installed on commercial vehicles are mainly optical rearview mirrors and indoor electronic rearview mirrors. By using curved surfaces to increase the field of view of reflection, it is convenient for drivers to quickly observe the situation behind the vehicle. The main structure of an optical rearview mirror includes: mirror arm, mirror housing, main rearview mirror lens, wide-angle rearview mirror lens, decorative cover, and lens adjustment device.

[0003] The optical rearview mirror has a problem:

[0004] a. Traditional rearview mirrors cannot automatically adjust when the tractor unit is turning, which limits the driver's field of vision;

[0005] b. The rearview mirrors are not accurately adjustable and cannot meet the automatic adjustment needs of different people.

[0006] The indoor electronic rearview mirror is installed in the driver's cab. It uses a camera to capture images of different positions behind the vehicle and transmits the images collected by the camera to the display terminal in the vehicle in real time, thereby expanding the driver's driving field of vision. The main structure of the indoor electronic rearview mirror includes: camera, adjustment mechanism, display screen, controller, and circuit board.

[0007] Problems exist with indoor electronic rearview mirrors:

[0008] a. If the display screen is always on, the driver's side mirror will constantly reflect the driver's peripheral vision, especially at night when the brightness is strong, causing visual fatigue for the driver;

[0009] b. Electronic rearview mirrors are electrical components with high reliability requirements. They are installed in the driver's cab. If the display screen or camera fails, the rearview mirror will completely lose its function.

[0010] c. The field-following function of the electronic rearview mirror only improves the driver's driving vision by adjusting the rearview mirror's field of vision in real time through the rotation angle of the vehicle's steering wheel, and cannot achieve trailer position tracking. Summary of the Invention

[0011] In view of the problems existing in the prior art, the purpose of this invention is to provide a follow-up rearview mirror with adaptive lens adjustment.

[0012] The technical solution adopted by this invention to solve its technical problem is: a follow-up rearview mirror with adaptive lens adjustment, including a rearview mirror lens and a wide-angle lens. A radar system and a camera are installed on the rearview mirror lens. The rearview mirror lens and the wide-angle lens are mounted on the mirror arm via an actuator motor. The radar system is electrically connected to the vehicle body controller. The vehicle body controller receives information from the steering sensor and the reversing sensor, and simultaneously receives the distance between the rearview mirror and the trailer tail detected by the radar system. The vehicle body controller processes the received information through preset vehicle parameters and transmits it to the rearview mirror control module via a CAN bus. The rearview mirror control module drives the actuator motor to adjust the position of the rearview mirror lens according to the input signal.

[0013] Preferably, the body controller also receives information from a position sensor installed on the driver's seat. The body controller transmits the signal to the rearview mirror control module via the CAN bus. The rearview mirror control module adjusts the position of the rearview mirror by actuating a motor, thereby achieving automatic adjustment of the mirror position.

[0014] Preferably, the rearview mirror lens assembly and the wide-angle lens assembly have slots on their back housings and mounting feet on the actuator motor, and the rearview mirror lens assembly and the wide-angle lens assembly are mounted to the actuator motor through the slots and mounting feet.

[0015] Preferably, the actuator motor is bolted to the mirror arm, the decorative panel is fastened to the mirror arm, and the mirror arm is bolted to both sides of the vehicle body.

[0016] The present invention has the following beneficial effects:

[0017] 1) Utilize the wide field of view of the wide-angle mirror. When turning, the wide-angle mirror adjusts the field of view with the cargo box. Even if the trailer turns a large angle, its field of view is still within the range allowed by regulations. This avoids the field of view moving away from the vehicle body when the view moves, which would make it impossible for the driver to judge the relative position between the tractor and the trailer.

[0018] 2) When the vehicle is turning and reversing, the main rearview mirror and the wide-angle rearview mirror lens use the vehicle information fed back by the rearview mirror control module to automatically adjust the mirror position through the actuator motor. The main rearview mirror reflects the wheels and the side view of the vehicle, while the wide-angle mirror automatically tracks the position of the trailer according to the distance between the main vehicle and the trailer fed back by the radar and according to the preset information to meet the vehicle's field of vision when turning and reversing.

[0019] 3) Existing electric rearview mirrors require the driver to manually adjust the electrical device to adjust the mirror position. This control device cannot ensure that the rearview mirror is positioned in one step and may require two or even more adjustments. It cannot achieve real-time adjustment during driving. Therefore, a position sensor is installed at the seat so that the driver can automatically adjust the mirror position according to the seat position, effectively minimizing blind spots. Attached Figure Description

[0020] Figure 1 This is a simplified diagram of the component control.

[0021] Figure 2 This is a schematic diagram of the left and right rearview mirror assembly.

[0022] Figure 3 This is a schematic diagram showing the locations of the radar and camera in the rearview mirror assembly.

[0023] Figure 4 This is a schematic diagram of the motor structure.

[0024] Figure 5 Schematic diagram of the back structure of a wide-angle lens

[0025] Figure 6 This is a schematic diagram of the field of view.

[0026] In the diagram: 1-Body controller; 2-Steering sensor; 3-Reversing sensor; 4-Radar system; 5-Position sensor; 6-Camera; 7-Left mirror arm; 8-Right mirror arm; 9-Rearview mirror control module; 10-Memory button; 11-Actuator motor; 12-Left rearview mirror lens; 13-Right rearview mirror lens; 14-Left wide-angle mirror lens; 15-Right wide-angle mirror lens; 16-Left trim panel; 17-Right trim panel; 18-Left wide-angle mirror field of view; 19-Left wide-angle legal field of view; 20-Left main mirror field of view; 21-Left main mirror legal field of view; 22-Right wide-angle mirror field of view; 23-Right wide-angle legal field of view; 24-Right main mirror field of view; 25-Right main mirror legal field of view. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0028] A adaptive rearview mirror with adjustable lenses includes a vehicle body controller 1, a steering sensor 2, a reversing sensor 3, a radar system 4, a position sensor 5, a camera 6, mirror arms, a rearview mirror control module 9, a memory button 10, an actuator motor 11, rearview mirror lenses, a wide-angle lens, and decorative panels. The rearview mirror lenses include symmetrical left rearview mirror lenses 12 and right rearview mirror lenses 13; the wide-angle lenses include symmetrical left wide-angle lenses 14 and right wide-angle lenses 15; the mirror arms include symmetrical left mirror arms 7 and right mirror arms 8; and the decorative panels include symmetrical left decorative panels 16 and right decorative panels 17. Panel 17 and position sensor 5 are installed on the driver's seat. Body controller 1, steering sensor 2, reversing sensor 3, rearview mirror control module 9, and memory button 10 are installed in the vehicle body. Steering sensor 2, reversing sensor 3, radar system 4, position sensor 5, camera 6, rearview mirror control module 9, and memory button 10 are electrically connected to body controller 1. Radar system 4 and camera 6 are installed on the rearview mirror lens. The rearview mirror lens and wide-angle lens are installed on the mirror arm via actuator motor 11. The decorative panel is installed on the mirror arm via clips. The mirror arm is installed on both sides of the vehicle body via bolts.

[0029] To enable the rearview mirror to automatically match the driver's body size or seating position and avoid the driver frequently adjusting the rearview mirror position, a position sensor 5 is installed on the seat. The position sensor 5 transmits the driver's current position information to the body controller 1. The body controller 1 transmits the signal to the rearview mirror control module 9 via the CAN bus. The rearview mirror control module 9 adjusts the rearview mirror position by actuating the motor 11, thereby achieving automatic adjustment of the mirror position.

[0030] Traditional rearview mirrors cannot automatically adjust when the tractor is turning, resulting in a limited field of vision for the driver. To achieve a dynamic field of vision function, a steering sensor 2, a reversing sensor 3, and a radar system 4 are installed. Turning angle information is transmitted to the body controller 1 through the steering sensor 2, and the gear position signal is transmitted to the body controller 1 through the reversing sensor 2. The radar system 4 transmits the detected distance between the rearview mirror and the trailer tail end to the body controller 1. The body controller 1 processes the received information according to the vehicle's preset parameters and transmits it to the rearview mirror control module 9 through the CAN bus. The rearview mirror control module 9 drives the actuator motor 11 to adjust the position of the rearview mirror lens according to the input signal to meet the field of vision requirements under different working conditions.

[0031] Camera 6 and radar system 4 are integrated into the rearview mirror assembly, reducing development costs and improving system integration.

[0032] This invention is not limited to the above-described embodiments. Anyone should know that any structural changes made under the guidance of this invention, and any technical solutions that are the same as or similar to this invention, fall within the protection scope of this invention.

[0033] The technologies, shapes, and structures not described in detail in this invention are all known technologies.

Claims

1. A follow-up rearview mirror with adaptive lens adjustment, characterized in that, The system includes a rearview mirror lens and a wide-angle lens. The rearview mirror lens is equipped with a radar system and a camera. The rearview mirror lens and the wide-angle lens are mounted on the mirror arm via an actuator motor. The radar system is electrically connected to the vehicle body controller. The vehicle body controller receives information from the steering sensor and the reversing sensor, and also receives the distance between the rearview mirror and the trailer tail detected by the radar system. The vehicle body controller processes the received information according to the vehicle's preset parameters and transmits it to the rearview mirror control module via the CAN bus. The rearview mirror control module drives the actuator motor to adjust the position of the rearview mirror lens according to the input signal.

2. The adaptive rearview mirror with lens adjustment according to claim 1, characterized in that, The body controller also receives information from a position sensor installed on the driver's seat. The body controller transmits the signal to the rearview mirror control module via the CAN bus. The rearview mirror control module adjusts the position of the rearview mirror by actuating a motor, thereby achieving automatic adjustment of the mirror position.

3. The adaptive rearview mirror with lens adjustment according to claim 1, characterized in that, The rearview mirror lens assembly and the wide-angle lens assembly have slots on their back housings and mounting feet on the actuator motor. The rearview mirror lens assembly and the wide-angle lens assembly are mounted to the actuator motor through the slots and mounting feet.

4. The adaptive rearview mirror with lens adjustment according to claim 1, characterized in that, The actuator motor is bolted to the mirror arm, the decorative panel is fastened to the mirror arm with clips, and the mirror arm is bolted to both sides of the vehicle body.

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