A follow-up steering large field of view housingless rearview mirror and control method

Abstract

This application relates to a wide-view, shell-less rearview mirror with adaptive steering and a control method. It includes: two ends of a rearview mirror mounting component for connection to a vehicle; a mirror body spaced apart from the rearview mirror mounting component; a movable component mounted on the rearview mirror mounting component, and having a rearview mirror steering mechanism that moves along the width direction of the vehicle; the rearview mirror steering mechanism connected to the back of the mirror body; and a controller connected to the movable component and the rearview mirror steering mechanism, and also connected to the vehicle's CAN signal. In use, the mirror body is unrestricted and can be adjusted to a wide angle. When the driver cannot see the rear of the vehicle through the rearview mirror, the controller automatically adjusts the rearview mirror steering mechanism to avoid blind spots during turns. When the width of the cargo box exceeds the standard width, the controller moves the mirror body to allow the rear of the vehicle to be seen, thus achieving automatic adjustment according to the turning angle of the vehicle's front, ensuring safety during driving.

Description

Technical Field

[0001] This application relates to the field of automotive parts technology, and in particular to a wide-view, shell-less rearview mirror with adaptive steering and a control method thereof. Background Technology

[0002] Rearview mirrors are currently considered important safety components in automobiles and are one of the most important ways for drivers to obtain indirect vision. When designing the layout of rearview mirrors, it is necessary to consider whether the field of vision meets regulatory requirements and whether it can meet the requirements for safe driving to the greatest extent.

[0003] In some related technologies, vehicles with traditional physical rearview mirrors, especially long trucks or buses, experience the following situations while driving:

[0004] (1) When the width of the cargo box matched with the truck exceeds the standard width, the side and rear of the trailer cannot be seen through the rearview mirror lens; when turning or driving, the driver cannot see the rear area of ​​the vehicle through the rearview mirror, forming a blind spot and affecting driving safety.

[0005] (2) Physical mirror truck rearview mirrors cannot achieve mirror adjustment when the vehicle turns, and the existing physical rearview mirrors cannot meet the ultra-wide angle adjustment when turning at large angles.

[0006] (3) Physical mirror truck rearview mirrors are usually surrounded by a shell, and cannot be moved or adjusted to match various truck or tractor trailers of different widths. Summary of the Invention

[0007] This application provides a rearview mirror with a wide field of view and no outer shell that can be dynamically steered, and a control method thereof, to solve the problem in the related art that when the width of the cargo box matched with the truck exceeds the standard width, the side and rear of the trailer cannot be seen through the rearview mirror lens; and the driver cannot see the rear area of ​​the vehicle through the rearview mirror when turning or driving.

[0008] Firstly, a wide-view, shell-less rearview mirror with adaptive steering is provided, comprising:

[0009] A rearview mirror mount is provided along the height of the vehicle, and its two ends are used for connection with the vehicle.

[0010] The mirror body is spaced apart from the rearview mirror mounting component;

[0011] A movable assembly is mounted on the rearview mirror mount and has a rearview mirror steering mechanism that moves along the width direction of the vehicle; the end of the rearview mirror steering mechanism away from the movable assembly is connected to the back of the mirror body.

[0012] The controller is connected to the moving component and the rearview mirror steering mechanism, and is used to connect to the vehicle's CAN signal.

[0013] In some embodiments, the mirror body has two calibration dashed lines spaced apart along the vehicle height direction on its mirror surface, with the area between the two calibration dashed lines being a calibration region.

[0014] In some embodiments, a calibration knob and a memory switch are also included, which are connected to the moving component via a controller.

[0015] In some embodiments,

[0016] The rearview mirror mounting component is provided with a mounting base, and the center of the mounting base is provided with a mounting channel for the connecting wire of the rearview mirror steering device to pass through.

[0017] The moving component includes:

[0018] Two transverse guide rails are located on the upper and lower sides of the mounting channel, respectively, and are fixed to the ends of the mounting base;

[0019] The steering gear fixing truss is slidably mounted on the transverse guide rail;

[0020] The drive unit is mounted on the rearview mirror mount. The output end of the drive unit is connected to the steering gear fixed truss and is used to drive the steering gear fixed truss to move along the length of the transverse guide rail.

[0021] In some embodiments, the steering gear fixing truss includes:

[0022] Two horizontal bars are spaced apart.

[0023] Two vertical bars are spaced apart and installed between two horizontal bars; the two vertical bars and the two horizontal bars together form an installation space.

[0024] The mounting ring is disposed in the mounting space and connected to the rearview mirror steering mechanism.

[0025] In some embodiments, the drive includes:

[0026] A worm gear, which is rotatably connected to one of the crossbars;

[0027] The worm gear meshes with the worm wheel, and the number of helical teeth on the worm gear has a set ratio to the moving distance of the steering gear fixed truss;

[0028] The motor has its output end connected to the worm gear.

[0029] In some embodiments, the rearview mirror mount is hollow inside and communicates with the mounting channel.

[0030] Secondly, a control method for a wide-view, shell-less rearview mirror with adaptive steering is provided, which includes the following steps:

[0031] The controller is used to acquire vehicle driving status information, which includes the steering wheel angle and vehicle speed.

[0032] Based on the vehicle's driving status information, the angle difference between the cab and the trailer box is calculated using the controller;

[0033] The controller compares the angle difference with the set safety value. If the angle difference is greater than or equal to the set safety value, the controller controls the rearview mirror steering mechanism to adjust the mirror body; otherwise, no adjustment is made.

[0034] In some embodiments, the vehicle driving status information also includes the turning direction and turning angular velocity of the vehicle's steering wheels;

[0035] Adjusting the mirror body using the controller to control the rearview mirror steering mechanism includes the following steps:

[0036] The adjustment time is determined based on the angle difference and turning angular velocity.

[0037] The time is adjusted by controlling the movement of the mirror body in the turning direction using the rearview mirror steering mechanism.

[0038] In some embodiments, the wide-view, shell-less rearview mirror with adaptive steering also includes a calibration knob and a memory switch, which are connected to the moving components via a controller;

[0039] The mirror body has two calibration dotted lines spaced apart along the vehicle height direction on the mirror surface, and the area between the two calibration dotted lines is the calibration area;

[0040] Before acquiring vehicle driving status information using the controller, which includes the vehicle's steering wheel angle and speed, the following steps are also included:

[0041] Initialize and calibrate the field of view when the vehicle is stationary or traveling in a straight line.

[0042] Using the calibration knob, the moving component is moved laterally to adjust the rear of the vehicle between the two calibration dotted lines.

[0043] The position of the mirror body is remembered using a memory switch.

[0044] The beneficial effects of the technical solution provided in this application include:

[0045] This application provides a large-view, shell-less rearview mirror with adaptive steering and a control method. The mirror body has a steering mechanism mounted on its back, which is fixed to the vehicle body via a moving component and a rearview mirror mounting bracket. The controller uses its internal calculation program to control the movement of the moving component and the steering mechanism. The mirror body has no frame, allowing for unrestricted movement during use. When the driver cannot see the rear of the vehicle through the rearview mirror during turns or driving, the controller automatically adjusts the steering mechanism to avoid blind spots during turns. When the width of the cargo box exceeds the standard width, the controller moves the mirror body laterally to allow the rear of the vehicle to be seen, thus automatically adjusting to the turning angle of the vehicle to ensure driving safety. Attached Figure Description

[0046] 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.

[0047] Figure 1 This is a schematic diagram of the field of view of the rearview mirror when the vehicle is traveling straight.

[0048] Figure 2 A diagram illustrating the blind spot when a vehicle's turning angle exceeds a set safety value;

[0049] Figure 3 A schematic diagram of the field of view area after automatically adjusting the rearview mirror angle according to the method of this application;

[0050] Figure 4 A schematic diagram of the overall structure of the adaptive steering wide-view shellless rearview mirror and rearview mirror mounting component provided in the embodiments of this application;

[0051] Figure 5 This is a schematic diagram of the specific structure of the mobile component provided in the embodiments of this application.

[0052] In the diagram: 1. Rearview mirror mounting component; 100. Mounting base; 2. Mirror body; 3. Moving component; 300. Lateral guide rail; 301. Drive component; 302. Steering gear fixing truss; 4. Rearview mirror steering gear; 5. Steering wheel; 6. Cab; 7. Trailer box; 8. Rearview mirror field of view area; 9. Rearview mirror blind spot. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0054] refer to Figures 1-3 , Figure 1 This is a schematic diagram of the field of view of the rearview mirror when the vehicle is traveling straight. Figure 2 A diagram illustrating the blind spot when a vehicle's turning angle exceeds a set safety value; Figure 3 This is a schematic diagram of the field of view area after automatically adjusting the rearview mirror angle according to the method of this application.

[0055] In the three diagrams above, it can be clearly seen that when driving straight, the side and rear of the trailer can be seen in the rearview mirror; however, when turning or driving, the driver cannot see the rear area of ​​the vehicle through the rearview mirror, resulting in a blind spot.

[0056] In addition, existing rearview mirrors have outer frames, and the mirror adjustment angle of physical rearview mirrors cannot meet the ultra-wide-angle adjustment when turning at large angles, and cannot automatically adjust when blind spots occur during turns.

[0057] Therefore, based on the above description, this application provides a rearview mirror with a wide field of view and no outer shell that can be dynamically steered, in order to solve the problem in the related art that when the width of the cargo box matched with the truck exceeds the standard width, the side and rear of the trailer cannot be seen through the rearview mirror lens; and the driver cannot see the rear area of ​​the vehicle through the rearview mirror when turning or driving.

[0058] Please see Figure 4 and Figure 5 A wide-view, shell-less rearview mirror with adaptive steering, comprising:

[0059] The rearview mirror mounting component 1, the mirror body 2, the moving component 3, and the controller are provided. The rearview mirror mounting component 1 is arranged along the height direction of the vehicle, and its two ends are used to connect with the vehicle. The mirror body 2 is arranged at an interval from the rearview mirror mounting component 1.

[0060] The movable component 3 is mounted on the rearview mirror mounting part 1, and has a rearview mirror steering device 4 that moves along the width direction of the vehicle; the end of the rearview mirror steering device 4 away from the movable component 3 is connected to the back of the mirror body 2; the controller is connected to the movable component 3 and the rearview mirror steering device 4, and is used to connect to the vehicle CAN signal.

[0061] It should be understood that the adaptive wide-view, shell-less rearview mirror is intended for use in extra-long transport trucks, as it is only found in trucks or buses with a long overall length. The adaptive wide-view, shell-less rearview mirror is a pair located on either side of the driver's cab. Since the mirror body 2 lacks protection due to the absence of an outer frame, a protective coating or protective plate can be installed on the back of the mirror body 2. The size of the protective plate should be approximately equal to the size of the mirror body 2. Furthermore, to facilitate the connection between the mirror body 2 and the rearview mirror steering mechanism 4, and to ensure the stability of the connection, a protective plate is preferred.

[0062] With the above settings, the rearview mirror steering mechanism 4 is installed on the back of the mirror body 2, and the rearview mirror steering mechanism 4 is fixed to the vehicle body through the moving component 3 and the rearview mirror mounting part 1. In addition, the controller controls the movement of the moving component and the rearview mirror steering mechanism 4 through its internal calculation program. The mirror body 2 has no frame, which can realize unobstructed ultra-wide-angle adjustment. When in use, the mirror body 2 can move freely without restriction. When the driver cannot see the rear area of ​​the vehicle through the rearview mirror while turning or driving, the controller controls the rearview mirror steering mechanism 4 to automatically adjust to avoid blind spots during turning. When the width of the cargo box matched with the vehicle exceeds the standard width, the controller controls the moving component 3 to move the mirror body 2 laterally so that the rear of the vehicle can be seen, thereby realizing automatic adjustment according to the turning angle of the front of the vehicle to ensure safety during driving.

[0063] In some preferred embodiments, due to the different heights and driving habits of different users, and considering the need for automatic steering during subsequent turns, the driver needs to perform a visual field initialization calibration when the vehicle is stationary; and to accommodate different trailer box widths, the following settings have been implemented:

[0064] The mirror body 2 has two dotted lines spaced apart along the vehicle height direction on its surface, with the area between the two lines forming a calibration zone. A reserved distance is provided between the calibration lines and their corresponding edges on the mirror surface; this reserved distance is related to the width of different trailer boxes. The calibration zone is not set as calibration lines precisely because different users have different heights and driving habits.

[0065] When in use, the driver needs to operate the device while the vehicle is stationary. The controller controls the moving component 3 to move the mirror body 2 and adjust the rear of the vehicle between the two calibration lines to complete the initial calibration of the field of view.

[0066] Furthermore, the wide-view, shell-less rearview mirror with adaptive steering also includes a calibration knob and a memory switch, which are connected to the moving component 3 via a controller. Rotating the calibration knob controls the movement of the moving component 3, and after adjustment (after the field of view initialization calibration is complete), the position is memorized using the memory switch. The rearview mirror steering mechanism 4 is an existing structure in related technologies and is located in the driver's cab; the calibration knob is also located in the driver's cab, but it could also be located on the button originally used to control the rearview mirror steering mechanism 4 in the driver's cab.

[0067] In some preferred embodiments, the specific structure of the moving component 3 is configured such that the rearview mirror mounting part 1 is provided with a mounting base 100, and the center of the mounting base 100 is provided with a mounting channel through which the connecting line of the rearview mirror steering device 4 passes.

[0068] Mobile component 3 includes:

[0069] Two transverse guide rails 300 are located on the upper and lower sides of the mounting channel and fixed to the ends of the mounting base 100; a steering gear fixing truss 302 is slidably mounted on the transverse guide rails 300; a drive unit 301 is mounted on the rearview mirror mounting unit 1, and the output end of the drive unit 301 is connected to the steering gear fixing truss 302 for transmission and is used to drive the steering gear fixing truss 302 to move along the length direction of the transverse guide rails 300.

[0070] By setting up the transverse guide rail 300 and the steering gear fixing truss 302, the installation and fixing of the rearview mirror steering gear 4 are realized, as well as the movement of the rearview mirror steering gear 4, thereby satisfying the above-mentioned automatic adjustment during the turning process and the operation of lateral adjustment to cope with cargo boxes of different widths.

[0071] Furthermore, the steering gear fixing truss 302 includes:

[0072] Two horizontal bars are spaced apart; two vertical bars are also spaced apart and installed between the two horizontal bars; the two vertical bars and the two horizontal bars together form an installation space; a mounting ring is placed in the installation space and is threadedly connected to the rearview mirror steering unit 4. This structure facilitates the fixing of the rearview mirror steering unit 4 and also facilitates the passage of connecting wires.

[0073] Furthermore, to address the aforementioned structure and prevent the connecting wires from being exposed on the outside, the interior of the rearview mirror mounting component 1 is hollowed out and connected to the mounting channel.

[0074] Furthermore, the drive unit 301 includes:

[0075] A worm gear is rotatably connected to one of the crossbars; a worm meshes with the worm gear, and the number of helical teeth on the worm has a set ratio to the moving distance of the steering gear fixing truss 302, that is, the number of helical teeth determines the moving distance of the mirror body 2; a motor is connected to the worm at its output end. It utilizes the transmission characteristics of the worm gear, which are: large transmission ratio, compact structure, smooth transmission, and no noise. Because the worm teeth are continuous helical teeth, their meshing with the worm gear teeth is continuous, without a process of entering and exiting the mesh. It has self-locking properties. When the helix angle of the worm is very small, the worm can only drive the worm gear.

[0076] This allows the moving component to also have a self-locking effect, saving on locking structures and reducing costs.

[0077] This application also proposes a control method for a wide-view, shell-less rearview mirror with adaptive steering, which includes the following steps:

[0078] The controller is used to acquire vehicle driving status information, which includes the steering wheel angle and vehicle speed.

[0079] Obtain the vehicle's set safety value, which is the set angle difference;

[0080] Based on the vehicle's driving status information, the controller calculates the angle difference between the cab and the trailer box; the vehicle's CAN bus acquires the vehicle's driving status information.

[0081] The controller compares the angle difference with a set safety value.

[0082] If the angle difference is greater than or equal to the set safety value, the controller is used to control the rearview mirror steering mechanism 4 to adjust the mirror body 2;

[0083] Otherwise, no adjustment will be made.

[0084] The angle difference can be referenced. Figure 2 The mark θ shown in the figure 差 .

[0085] The specific steps for calculating the angle difference between the cab and the trailer are as follows:

[0086] The steering angle θ1 of the vehicle's steering wheel 5 = steering wheel angle θ squared * X1;

[0087] The steering angle θ2 of the cab 6 is equal to the sum of the steering wheel angles of the vehicle and the x2.

[0088] The steering angle θ3 of the trailer box 7 is equal to the steering wheel angle of the vehicle * X2.

[0089] The angle difference θ between the cab 6 and the trailer box 7 差 =θ2-θ3;

[0090] X1 is the steering ratio coefficient between the steering wheel and the steering wheel; X2 is obtained by multiplying the conversion coefficient by V, where V is the vehicle speed.

[0091] When θ 差 If the size exceeds a certain limit, the rear of the trailer cannot be seen in the rearview mirror's field of vision area 8, creating a blind spot 9. Figure 2 As shown, this has a significant impact on driving safety. The adjusted rearview mirror's field of vision is as follows: Figure 3 As shown.

[0092] When the driver cannot see the rear of the vehicle through the rearview mirror while turning or driving, the controller controls the rearview mirror steering mechanism 4 to automatically adjust to avoid blind spots during turning. When the width of the cargo box matched with the vehicle exceeds the standard width, the controller controls the moving component 3 to move the mirror body 2 laterally so that the rear of the vehicle can be seen. This achieves automatic adjustment according to the turning angle of the front of the vehicle, ensuring safety during driving.

[0093] In some preferred embodiments, the vehicle driving status information also includes turning direction and turning angular velocity; adjusting the mirror body 2 by controlling the rearview mirror steering mechanism 4 with the controller includes the following steps: determining the adjustment time based on the angle difference and turning angular velocity; controlling the mirror body 2 to move in the turning direction by the rearview mirror steering mechanism 4 to adjust the time. This is because it is a setting method where the speed at which the motor drives the worm gear to rotate is constant.

[0094] In some preferred embodiments, the speed at which the motor drives the worm gear to rotate is not constant. The vehicle driving status information also includes the turning direction of the vehicle's steering wheels, vehicle speed, and turning angular velocity.

[0095] The turning angle of a vehicle can be predicted in advance by using the turning angular velocity;

[0096] Using the vehicle speed and the vehicle's turning angle, calculate the required adjustment rate and adjustment angle of the rearview mirror steering system 4.

[0097] In some preferred embodiments, the large-view, shell-less rearview mirror with adaptive steering also includes a calibration knob and a memory switch, which are connected to the moving component 3 via a controller; the mirror body 2 has two calibration dotted lines spaced apart along the vehicle height direction, and the area between the two calibration dotted lines is the calibration area;

[0098] Before acquiring vehicle driving status information using the controller, which includes the vehicle's steering wheel angle and speed, the following steps are also included:

[0099] Initialize and calibrate the field of vision when the vehicle is stationary or traveling in a straight line; use the calibration knob to control the moving component 3 to move the mirror body 2 laterally so that the rear of the vehicle is adjusted between the two calibration dotted lines; use the memory switch to memorize the position of the mirror body 2.

[0100] This is because different users have different heights and driving habits, and considering the need for automatic steering when turning, the driver needs to initialize and calibrate the field of vision when the vehicle is stationary; and also to deal with the width of different trailer boxes.

[0101] This application also proposes a computer-readable storage medium for implementing a control method for a large-view, shell-less rearview mirror with adaptive steering. This allows the mirror body 2 to move freely and without restriction during use. When the driver cannot see the rear of the vehicle through the rearview mirror during turning or driving, the controller automatically adjusts the rearview mirror steering mechanism 4 to avoid blind spots during turning. When the width of the cargo box exceeds the standard width, the controller controls the moving component 3 to move the mirror body 2 laterally, allowing the rear of the vehicle to be seen. This achieves automatic adjustment according to the turning angle of the vehicle's front, ensuring safety during driving. The computer-readable storage medium is the computing program mentioned above, set within the controller.

[0102] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0103] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0104] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0105] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the functions specified in one or more boxes. In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory. Memory may include non-persistent memory in computer-readable media, random access memory (RAM), and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0106] Computer-readable media, including both permanent and non-permanent, removable and non-removable media, can store information using any method or technology. Information can be computer-readable instructions, data structures, program modules, or other data.

[0107] Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transfer medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient media, such as modulated data signals and carrier waves. It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In the absence of further restrictions, an element defined by the phrase "including one..." does not exclude the presence of other identical elements in the process, method, goods or equipment that include the element.

[0108] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code. The above are merely embodiments of this application and are not intended to limit this application. For those skilled in the art,

[0109] This application may be subject to various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application shall be included within the scope of the claims of this application.

[0110] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0111] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0112] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A control method of a follow-up steering large field of view housingless rearview mirror, characterized by, The reversible, wide-view, shell-less rearview mirror includes: a rearview mirror mounting component (1) arranged along the height direction of the vehicle, with both ends for connection to the vehicle; a mirror body (2) spaced apart from the rearview mirror mounting component (1); a moving component (3) mounted on the rearview mirror mounting component (1), and having a rearview mirror steering mechanism (4) that moves along the width direction of the vehicle; one end of the rearview mirror steering mechanism (4) away from the moving component (3) is connected to the back of the mirror body (2); the rearview mirror mounting component (1) has a mounting seat (100), and the center of the mounting seat (100) has an installation channel through which the connecting line of the rearview mirror steering mechanism (4) passes; the moving component (3) includes: two transverse guide rails (300) located on the upper and lower sides of the installation channel and fixed to the ends of the mounting seat (100); a steering mechanism fixing truss (302) slidably mounted on the transverse guide rails (300); and a drive component (301) mounted on the rear... On the rearview mirror mounting component (1), the output end of the drive component (301) is connected to the steering gear fixing truss (302) and is used to drive the steering gear fixing truss (302) to move along the length direction of the transverse guide rail (300); the interior of the rearview mirror mounting component (1) is hollow and communicates with the mounting channel; the steering gear fixing truss (302) includes: two horizontal bars, which are spaced apart; two vertical bars, which are spaced apart and installed between the two horizontal bars; the two vertical bars and the two horizontal bars enclose the mounting space; the mounting ring is set in the mounting space and connected to the rearview mirror steering gear (4); the drive component (301) includes: a worm gear, which is rotatably connected to one of the horizontal bars; a worm, which meshes with the worm gear, and the number of helical teeth on the worm has a set ratio with the moving distance of the steering gear fixing truss (302); a motor, whose output end is connected to the worm; a controller, which is connected to the moving component (3) and the rearview mirror steering gear (4) and is used to connect with the vehicle CAN signal; The control method for a wide-view, shell-less rearview mirror that can automatically turn, specifically includes: The controller is used to obtain vehicle driving status information, which includes vehicle steering wheel angle, vehicle speed, turning direction of vehicle steering wheels and turning angular velocity; The angle difference between the cab and the trailer box is calculated based on the steering wheel angle and vehicle speed, using the controller. The controller compares the angle difference with the set safety value. If the angle difference is greater than or equal to the set safety value, the controller controls the rearview mirror steering mechanism (4) to adjust the mirror body (2); otherwise, no adjustment is made. Adjusting the mirror body (2) by controlling the rearview mirror steering mechanism (4) with the controller includes the following steps: When the speed at which the motor drives the worm gear to rotate is constant, the adjustment time is determined based on the angle difference and the turning angular velocity; the rearview mirror steering gear (4) is used to control the mirror body (2) to move in the turning direction to adjust the time; When the speed at which the motor drives the worm gear to rotate is not constant, the turning angle of the vehicle is predicted in advance by using the turning angular velocity; using the vehicle speed and the turning angle of the vehicle, the required adjustment rate and adjustment angle of the rearview mirror steering gear (4) are calculated.

2. The control method for a wide-view, shell-less rearview mirror with adaptive steering as described in claim 1, characterized in that: The mirror body (2) has two calibration dashed lines that are spaced apart along the vehicle height direction, and the area between the two calibration dashed lines is the calibration area.

3. The control method for a wide-view, shell-less rearview mirror with adaptive steering as described in claim 1, characterized in that: The wide-view, shell-less rearview mirror with adaptive steering also includes a calibration knob and a memory switch, which are connected to the moving component (3) via a controller; The mirror body (2) has two calibration dashed lines that are spaced apart along the vehicle height direction, and the area between the two calibration dashed lines is the calibration area; Before acquiring vehicle driving status information using the controller, which includes the vehicle's steering wheel angle and speed, the following steps are also included: Initialize and calibrate the field of view when the vehicle is stationary or traveling in a straight line. Using the calibration knob, control the moving component (3) to move the mirror body (2) laterally so that the rear of the vehicle is positioned between the two calibration dotted lines; The position of the mirror body (2) is memorized using a memory switch.

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