Vehicle Rearview Mirror Adjustment Control System and Method

Abstract

In the technical solution of a vehicle rearview mirror adjustment control system and method provided by an embodiment of the present invention, the vehicle rearview mirror adjustment control system includes: a vehicle sensor for obtaining vehicle signals of the vehicle, where the vehicle signals include a steering wheel angle signal and a vehicle speed signal; the vehicle sensor includes a steering wheel angle sensor and a vehicle speed sensor; a central controller for starting timing and generating timing information after receiving the vehicle signals, and obtaining a target rearview mirror angle based on the vehicle signals and the timing information; a rearview mirror controller for generating a second control signal according to the target rearview mirror angle and sending the second control signal to a rearview mirror motor; and the rearview mirror motor for controlling a rotating device to rotate according to the second control signal so that the rearview mirror rotates to the target rearview mirror angle. The embodiment of the present invention can continuously adjust the rearview mirror according to the steering wheel angle signal and the vehicle speed signal.

Description

Technical Field

[0001] The present invention relates to the field of vehicle control, and in particular, to a vehicle rearview mirror adjustment control system and method.

Background Art

[0002] Currently, vehicle rearview mirror adjustment technology usually performs automatic control of vehicle rearview mirrors by collecting vehicle angle information, GPS receiver information, map information, etc. The information to be acquired is redundant and the design is complex. In actual use, due to different steering angles during lane changes, the field of vision is different and the blind area also changes continuously during the steering process. Therefore, continuous adjustment of the rearview mirror cannot be achieved.

Summary of the Invention

[0003] In view of this, embodiments of the present invention provide a vehicle rearview mirror adjustment control system and method, which can continuously adjust the rearview mirror according to the steering wheel angle signal and the vehicle speed signal.

[0004] In a first aspect, an embodiment of the present invention provides a vehicle rearview mirror adjustment control system, the system includes:

[0005] A vehicle sensor, configured to obtain a vehicle signal of the vehicle and send the vehicle signal to a central controller; the vehicle sensor includes a steering wheel angle sensor and a vehicle speed sensor; the vehicle signal includes a steering wheel angle signal and a vehicle speed signal;

[0006] The central controller is configured to start timing and generate timing information after receiving the vehicle signal, obtain a target rearview mirror angle according to the vehicle signal and the timing information, generate a first control signal according to the target rearview mirror angle, and output the first control signal so that the first control signal is transmitted to the rearview mirror controller;

[0007] The rearview mirror controller is configured to obtain the target rearview mirror angle according to the first control signal, generate a second control signal according to the target rearview mirror angle, and send the second control signal to the rearview mirror motor;

[0008] The rearview mirror motor is configured to control the rotation of a rotating device according to the second control signal so that the rearview mirror rotates to the target rearview mirror angle.

[0009] Optionally, the central controller includes: a first processing unit and a first control unit;

[0010] The first processing unit is configured to start timing and generate timing information after receiving the vehicle signal, and obtain a target rearview mirror angle according to the vehicle signal and the timing information;

[0011] The first control unit is configured to generate a first control signal according to the target rearview mirror angle and output the first control signal, so that the first control signal is transmitted to the rearview mirror controller.

[0012] Optionally, the first processing unit is specifically configured to: start timing and generate timing information after receiving the vehicle signal, determine that the steering mode of the vehicle is a same-direction lane change through the vehicle signal and the timing information, and calculate the target rearview mirror angle.

[0013] The beneficial effects of determining the steering mode of the vehicle as a same-direction lane change through the vehicle signal and the timing information and calculating the target rearview mirror angle in the embodiments of the present invention are as follows: It can more conveniently and continuously observe the vehicles behind the lane to be changed, and realize the adjustment of the rearview mirror during the whole process of vehicle steering and straightening.

[0014] Optionally, the first processing unit is specifically configured to: start timing and generate timing information after receiving the vehicle signal, determine that the steering mode of the vehicle is a steering lane change through the vehicle signal and the timing information, and calculate the target rearview mirror angle.

[0015] The beneficial effects of determining the steering mode of the vehicle as a steering lane change through the vehicle signal and the timing information and calculating the target rearview mirror angle in the embodiments of the present invention are as follows: It can more conveniently and continuously observe the vehicles behind the lane to be changed, and realize the adjustment of the rearview mirror during the whole process of vehicle steering and straightening.

[0016] Optionally, the rearview mirror controller includes: a second control unit and a second processing unit;

[0017] The second control unit is configured to receive the first control signal and generate a target rearview mirror angle according to the first control signal;

[0018] The second processing unit is configured to generate a second control signal according to the target rearview mirror angle and send the second control signal to the rearview mirror motor.

[0019] Optionally, the vehicle sensor further includes a turn signal sensor; the vehicle signal further includes a turn signal.

[0020] Optionally, the central controller is configured to obtain the target rearview mirror angle according to the vehicle signal and the timing information, and specifically includes:

[0021] The central controller is configured to determine the vehicle rotation angle according to the integral processing of the steering wheel angle signal and the timing information, and then determine the target rearview mirror angle according to the integral processing and trigonometric relationship of the vehicle speed signal, the timing information and the vehicle rotation angle.

[0022] Optionally, the central controller is configured to determine the vehicle rotation angle based on the integral processing of the steering wheel angle signal and the timing information, specifically including:

[0023] The central controller is configured to multiply the integral result of the steering wheel angle signal and the timing information, the vehicle wheelbase, and the constant ratio of the steering wheel steering angle and the tire steering angle to obtain a first result, and then obtain the vehicle rotation angle based on the first result, a preset reference angle, and a correction coefficient.

[0024] Optionally, the central controller is configured to determine the target rearview mirror angle based on the integral processing and trigonometric relationship of the vehicle speed signal, the timing information, and the vehicle rotation angle, specifically including:

[0025] The central controller is configured to obtain the coordinates of the target position based on the integral result of the vehicle speed signal, the timing information, and the vehicle rotation angle; and determine the target rearview mirror angle based on the coordinates of the target position and the trigonometric relationship.

[0026] Optionally, the central controller is configured to obtain the target rearview mirror angle based on the vehicle signal and the timing information, specifically including:

[0027] The central controller is configured to determine the vehicle rotation angle based on the integral processing of the steering wheel angle signal and the timing information; and determine the rotation range of the target rearview mirror angle based on the vehicle rotation angle, a preset standard lane width, and the trigonometric relationship.

[0028] Optionally, the central controller includes: an AI operation module;

[0029] The AI operation module is configured to calculate the target rearview mirror angle of the vehicle in real time according to a set algorithm or model.

[0030] Optionally, the first processing unit includes: a register, an ADC, and a CPU;

[0031] The register is configured to store the vehicle signal;

[0032] The ADC is configured to sample the vehicle signal in the register and transmit the sampled data to the CPU;

[0033] The CPU is configured to perform relevant data processing and operations on the sampled data to obtain the target rearview mirror angle, and generate a target rearview mirror angle adjustment signal based on the target rearview mirror angle.

[0034] Optionally, the first control unit includes: a first CAN controller and a first CAN transceiver;

[0035] The first CAN controller is configured to receive a target rearview mirror angle adjustment signal and generate a first control signal according to the target rearview mirror angle adjustment signal;

[0036] The first CAN transceiver is configured to transmit the first control signal to the rearview mirror controller.

[0037] Optionally, the rearview mirror controller includes: a second CAN controller, a second CAN transceiver, and a rearview mirror control CPU;

[0038] The second CAN transceiver is configured to receive the first control signal;

[0039] The second CAN controller is configured to generate the target rearview mirror angle according to the first control signal;

[0040] The rearview mirror control CPU is configured to generate a second control signal according to the target rearview mirror angle and send the second control signal to the rearview mirror motor.

[0041] On the other hand, an embodiment of the present invention provides a vehicle rearview mirror adjustment control system, and the system includes:

[0042] A steering wheel angle sensor is configured to obtain a steering wheel angle signal of the vehicle and send the steering wheel angle signal to a central controller;

[0043] The central controller is configured to obtain a target rearview mirror angle according to the steering wheel angle signal, generate a first control signal according to the target rearview mirror angle, and output the first control signal so that the first control signal is transmitted to the rearview mirror controller;

[0044] The rearview mirror controller is configured to obtain the target rearview mirror angle according to the first control signal, generate a second control signal according to the target rearview mirror angle, and send the second control signal to the rearview mirror motor;

[0045] The rearview mirror motor is configured to control the rotation of a rotating device according to the second control signal so that the rearview mirror rotates to the target rearview mirror angle.

[0046] Optionally, the central controller includes a first processing unit and a first control unit;

[0047] The first processing unit is configured to obtain a steering wheel rotation angle according to the steering wheel angle signal and obtain the target rearview mirror angle according to the steering wheel rotation angle;

[0048] The first control unit is configured to generate the first control signal according to the target rearview mirror angle and output the first control signal, so that the first control signal is transmitted to the rearview mirror controller.

[0049] Optionally, the first processing unit is specifically configured to: determine half of the steering wheel rotation angle as the target rearview mirror angle.

[0050] Optionally, the central controller includes: an AI operation module;

[0051] The AI operation module is configured to calculate the target rearview mirror angle of the vehicle in real time according to a set algorithm or model.

[0052] Optionally, the first processing unit includes: a register, an ADC, and a CPU;

[0053] The register is configured to store the vehicle signal;

[0054] The ADC is configured to sample the vehicle signal in the register and transmit the sampled data to the CPU;

[0055] The CPU is configured to perform relevant data processing and operations on the sampled data to obtain the target rearview mirror angle, and generate a target rearview mirror angle adjustment signal according to the target rearview mirror angle.

[0056] Optionally, the first control unit includes: a first CAN controller and a first CAN transceiver;

[0057] The first CAN controller is configured to receive the target rearview mirror angle adjustment signal and generate a first control signal according to the target rearview mirror angle adjustment signal;

[0058] The first CAN transceiver is configured to transmit the first control signal to the rearview mirror controller.

[0059] Optionally, the rearview mirror controller includes: a second CAN controller, a second CAN transceiver, and a rearview mirror control CPU;

[0060] The second CAN transceiver is configured to receive the first control signal;

[0061] The second CAN controller is configured to generate the target rearview mirror angle according to the first control signal;

[0062] The rearview mirror control CPU is configured to generate a second control signal according to the target rearview mirror angle and send the second control signal to the rearview mirror motor.

[0063] The beneficial effect of determining half of the steering wheel rotation angle as the target rearview mirror angle in the embodiments of the present invention is as follows: By using a simple mathematical model, the dynamic adjustment of the rearview mirror angle during the vehicle's same-direction lane change and turning lane change processes is performed according to the steering wheel rotation angle. The information obtained is simple, and the operation implementation is simple and fast.

[0064] Optionally, the rearview mirror controller includes: a second processing unit and a second control unit;

[0065] The second processing unit is configured to obtain the target rearview mirror angle from the first control signal;

[0066] The second control unit is configured to generate a second control signal according to the target rearview mirror angle and send the second control signal to the rearview mirror motor.

[0067] On the other hand, the embodiments of the present invention provide a method for controlling the adjustment of a vehicle rearview mirror, which is applied to a vehicle rearview mirror adjustment control system. The method includes:

[0068] Start timing after receiving a vehicle signal to generate timing information, where the vehicle signal includes a steering wheel angle signal and a vehicle speed signal;

[0069] Obtain the target rearview mirror angle according to the vehicle signal and the timing information;

[0070] Control the rotation of the rotating device according to the target rearview mirror angle so that the rearview mirror rotates to the target rearview mirror angle.

[0071] Optionally, before controlling the rotation of the rotating device according to the target rearview mirror angle so that the rearview mirror rotates to the target rearview mirror angle, it further includes:

[0072] Generate a first control signal according to the target rearview mirror angle;

[0073] Generate a second control signal according to the first control signal.

[0074] Optionally, controlling the rotation of the rotating device according to the target rearview mirror angle so that the rearview mirror rotates to the target rearview mirror angle includes:

[0075] Control the rotation of the rotating device according to the second control signal so that the rearview mirror rotates to the target rearview mirror angle.

[0076] Optionally, obtaining the target rearview mirror angle according to the vehicle signal and the timing information specifically includes:

[0077] Determine that the steering mode of the vehicle is a same-direction lane change through the vehicle signal and the timing information, and calculate the target rearview mirror angle;

[0078] or

[0079] Determine that the steering mode of the vehicle is a lane-changing turn based on the vehicle signal and the timing information, and calculate the target rearview mirror angle.

[0080] Optionally, obtaining the target rearview mirror angle according to the vehicle signal and the timing information specifically includes:

[0081] Obtain the target rearview mirror angle according to the vehicle signal, the timing information, and a rearview mirror turning angle AI model that has been pre-trained by AI.

[0082] Beneficial effects of adding the rearview mirror turning angle AI model in the embodiments of the present invention: The introduction of the rearview mirror turning angle AI model makes the system more intelligent, greatly improves the processing speed and saves power, and can meet the high processing speed requirements from collecting vehicle signals by vehicle sensors to controlling the rotation of the rearview mirror. In particular, it speeds up the processing speeds of the straight lane-changing algorithm and the right-angle turning algorithm.

[0083] Optionally, the vehicle signal further includes: a turn signal.

[0084] Optionally, obtaining the target rearview mirror angle according to the vehicle signal and the timing information specifically includes:

[0085] Determine the vehicle rotation angle through integral processing of the steering wheel angle signal and the timing information, and then determine the target rearview mirror angle according to the vehicle speed signal, the timing information, integral processing of the vehicle rotation angle, and trigonometric relationships.

[0086] Optionally, determining the vehicle rotation angle through integral processing of the steering wheel angle signal and the timing information specifically includes:

[0087] Multiply the integral result of the steering wheel angle signal and the timing information, the vehicle wheelbase, and the constant ratio of the steering wheel steering angle to the tire steering angle to obtain a first result, and then obtain the vehicle rotation angle according to the first result, a preset reference angle, and a correction coefficient.

[0088] Optionally, determining the target rearview mirror angle according to the vehicle speed signal, the timing information, integral processing of the vehicle rotation angle, and trigonometric relationships specifically includes:

[0089] Obtain the coordinates of the target position according to the vehicle speed signal, the timing information, and the integral result of the vehicle rotation angle; determine the target rearview mirror angle according to the coordinates of the target position and the trigonometric relationship.

[0090] Optionally, obtaining the target rearview mirror angle according to the vehicle signal and the timing information specifically includes:

[0091] Determine the vehicle rotation angle according to the integral processing of the steering wheel angle signal and the timing information; determine the rotation range of the target rearview mirror angle according to the vehicle rotation angle, the preset standard lane width, and the trigonometric relationship.

[0092] In the technical solution of the vehicle rearview mirror adjustment control system and method provided by the embodiments of the present invention, a vehicle sensor is used to obtain vehicle signals of the vehicle and send the vehicle signals to a central controller; the vehicle sensor includes a steering wheel angle sensor and a vehicle speed sensor; the vehicle signals include a steering wheel angle signal and a vehicle speed signal; the central controller is configured to start timing and generate timing information after receiving the vehicle signals, obtain a target rearview mirror angle according to the vehicle signals and the timing information, generate a first control signal according to the target rearview mirror angle, and output the first control signal so that the first control signal is transmitted to a rearview mirror controller; the rearview mirror controller is configured to obtain the target rearview mirror angle according to the first control signal, generate a second control signal according to the target rearview mirror angle, and send the second control signal to a rearview mirror motor; the rearview mirror motor is configured to control a rotating device to rotate according to the second control signal so that the rearview mirror rotates to the target rearview mirror angle. The embodiments of the present invention can continuously adjust the rearview mirror according to the steering wheel angle signal and the vehicle speed signal, can more conveniently and continuously observe the vehicles behind the lanes that need to change, and realize the adjustment of the rearview mirror during the whole process of vehicle steering and straightening.

Description of the Drawings

[0093] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0094] Figure 1 It is a schematic structural diagram of a vehicle rearview mirror adjustment control system provided by an embodiment of the present invention;

[0095] Figure 2 For Figure 1 a specific structural diagram of the vehicle rearview mirror adjustment control system in

[0096] Figure 3 It is a schematic structural diagram of another vehicle rearview mirror adjustment control system provided by an embodiment of the present invention;

[0097] Figure 4Schematic diagram of the principle for determining the lane change mode of a vehicle as a same-direction lane change through vehicle signals and timing information and calculating the target rearview mirror angle;

[0098] Figure 5 Schematic diagram of one principle for determining the lane change mode of a vehicle as a lane change through vehicle signals and timing information and calculating the target rearview mirror angle;

[0099] Figure 6 Schematic diagram of another principle for determining the lane change mode of a vehicle as a lane change through vehicle signals and timing information and calculating the target rearview mirror angle;

[0100] Figure 7 Schematic diagram of the structure of a vehicle rearview mirror adjustment control system provided by another embodiment of the present invention;

[0101] Figure 8 For Figure 7 Schematic diagram of a specific structure of the vehicle rearview mirror adjustment control system in

[0102] Figure 9 Schematic diagram of the structure of a vehicle rearview mirror adjustment control system provided by another embodiment of the present invention;

[0103] Figure 10 Schematic diagram of the structure of a vehicle rearview mirror adjustment control system provided by another embodiment of the present invention;

[0104] Figure 11 Flowchart of a vehicle rearview mirror adjustment control method provided by an embodiment of the present invention;

[0105] Figure 12 Flowchart of a vehicle rearview mirror adjustment control method provided by another embodiment of the present invention;

[0106] Figure 13 Flowchart of a vehicle rearview mirror adjustment control method provided by another embodiment of the present invention;

[0107] Figure 14 Flowchart of a vehicle rearview mirror adjustment control method provided by another embodiment of the present invention;

[0108] Figure 15 Flowchart of a vehicle rearview mirror adjustment control method provided by another embodiment of the present invention;

[0109] Figure 16 Flowchart of a vehicle rearview mirror adjustment control method provided by another embodiment of the present invention;

[0110] Figure 17 Illustration of the application of the MPU chip of the present invention to the adjustment of the rearview mirror.

Detailed Implementation Manner

[0111] To better understand the technical solution of the present invention, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0112] It should be clear that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work fall within the protection scope of the present invention.

[0113] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms of "a", "the" and "said" used in the embodiments of the present invention and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0114] It should be understood that the term " / and" used herein is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the front and rear associated objects.

[0115] Currently, vehicle rearview mirror adjustment technology usually performs automatic control of the vehicle rearview mirror by collecting angle information, GPS receiver information, map information, etc. of the vehicle. The information to be acquired is redundant and the design is complex. Currently, the positioning accuracy of civilian GPS is difficult to meet the requirements of vehicle rearview mirror adjustment technology, and the feasibility of the solution is low. Moreover, in actual use, due to different steering angles during lane change, the field of view is different and the blind area also changes continuously during the steering process. Therefore, continuous adjustment of the rearview mirror cannot be achieved.

[0116] In view of the above technical problems, the embodiments of the present invention provide a vehicle rearview mirror adjustment control system and method, which has a simple design, high universality, stability and accuracy, can determine the vehicle attitude according to the steering wheel angle signal and the vehicle speed signal, and continuously adjust the rearview mirror by applying relevant algorithms.

[0117] Figure 1 It is a schematic structural diagram of a vehicle rearview mirror adjustment control system provided by an embodiment of the present invention. Figure 2 For Figure 1 A specific structural diagram of the vehicle rearview mirror adjustment control system in Figure 3 It is another schematic structural diagram of a vehicle rearview mirror adjustment control system provided by an embodiment of the present invention.

[0118] Such as Figure 1As shown in the figure, the vehicle rearview mirror adjustment control system 100 includes: a vehicle sensor 110, a central controller 120, a rearview mirror controller 130, a bus 140, and a rearview mirror motor 150. Among them, the vehicle sensor 110 and the central controller 120 are connected through the bus 140; the central controller 120 and the rearview mirror controller 150 are connected through the bus 140; the rearview mirror controller 130 and the rearview mirror motor 150 are electrically connected.

[0119] The vehicle sensor 110 is used to obtain vehicle signals of the vehicle and send the vehicle signals to the central controller 120. The vehicle sensor 110 includes: a steering wheel angle sensor 111 and a vehicle speed sensor 112; the vehicle signals include: a steering wheel angle signal and a vehicle speed signal. Among them, the steering wheel angle sensor 111 is used to obtain the steering wheel angle signal of the vehicle and send the steering wheel angle signal to the central controller 120; the vehicle speed sensor 112 is used to obtain the vehicle speed signal of the vehicle and send the vehicle speed signal to the central controller 120.

[0120] Optionally, as Figure 3 shown in the figure, the vehicle sensor 110 further includes: a turn signal sensor 113; the vehicle signals further include a turn signal. Among them, the turn signal sensor 113 is used to obtain the turn signal of the vehicle and send the turn signal to the central controller 120. By adding the turn signal sensor 113 in the embodiments of the present invention, the adjustment system of the rearview mirror can be triggered in advance before turning, and the driving experience effect of adjusting the rearview mirror angle can be optimized.

[0121] The central controller 120 can be a CPU or an ECU or an MPU, and is equipped with a timer.

[0122] The central controller 120 is used to start timing and generate timing information after receiving the vehicle signals, obtain the target rearview mirror angle according to the vehicle signals and the timing information, generate a first control signal according to the target rearview mirror angle, and output the first control signal so that the first control signal is transmitted to the rearview mirror controller 130.

[0123] As Figure 1As shown, the central controller 120 includes: a first processing unit 122 and a first control unit 124. Among them, the first processing unit 122 is used to start timing and generate timing information after receiving a vehicle signal, obtain a target rearview mirror angle based on the vehicle signal and the timing information, and generate a target rearview mirror angle adjustment signal. The first processing unit 122 includes a CPU, an ADC, and a register. Specifically, the register is used to store the vehicle signal; the ADC is used to sample the vehicle signal in the register and transmit the sampled data to the CPU; the CPU is used to perform relevant data processing and operations on the sampled data to obtain the target rearview mirror angle, and generate a target rearview mirror angle adjustment signal according to the target rearview mirror angle. The first control unit 124 is a CAN bus-related controller and transceiver. The first control unit 124 is used to generate a first control signal according to the target rearview mirror angle adjustment signal and output the first control signal so that the first control signal is transmitted to the rearview mirror controller 130. As Figure 2 As shown, the first control unit 124 includes a first CAN controller 12a and a first CAN transceiver 12b. The first CAN controller 12a is used to receive the target rearview mirror angle adjustment signal and generate a first control signal according to the target rearview mirror angle adjustment signal. The first CAN transceiver 12b is used to transmit the first control signal to the rearview mirror controller 130. Specifically, the first CAN transceiver 12b is used to send the first control signal to the bus 140 so that the first control signal is transmitted to the rearview mirror controller 130 through the bus 140.

[0124] As an alternative solution, the first processing unit 122 is specifically used for: starting timing and generating timing information after receiving a vehicle signal, determining that the steering mode of the vehicle is a same-direction lane change through the vehicle signal and the timing information, calculating the target rearview mirror angle, and generating a target rearview mirror angle adjustment signal.

[0125] As an alternative solution, the first processing unit includes a timer that generates timing information based on the vehicle signal.

[0126] As an alternative solution, the first control unit can generate a first control signal according to the angle of the target rearview mirror.

[0127] In the embodiment of the present invention, the central controller 120 is used to obtain the target rearview mirror angle according to the vehicle signal and the timing information, which specifically includes: the central controller 120 is used to determine the rotation angle of the vehicle according to the integral processing of the steering wheel angle signal and the timing information, and then determine the target rearview mirror angle according to the integral processing and trigonometric relationship of the vehicle speed signal, the timing information, and the rotation angle of the vehicle.

[0128] Specifically, the central controller 120 is configured to determine the vehicle rotation angle based on the integration processing of the steering wheel angle signal and the timing information, specifically including: the central controller 120 is configured to multiply the integration result of the steering wheel angle signal and the timing information, the vehicle wheelbase, and the constant ratio of the steering wheel steering angle to the tire steering angle to obtain a first result, and then obtain the vehicle rotation angle based on the first result, a preset reference angle, and a correction coefficient.

[0129] In an embodiment of the present invention, as Figure 4 shown, a rectangular coordinate system XOY is established, the vehicle speed signal is V, it is set that the angle change during the tire lane deviation process is the vehicle rotation angle θ, which is equivalent to the overall vehicle angle change; the steering wheel steering angle δ is obtained through the steering wheel angle signal, and the change of the steering wheel steering angle δ needs to set a vector relationship, set to be negative to the left and positive to the right, and vice versa, which is convenient to realize the rearview mirror adjustment during the whole process of vehicle steering and straightening; the effective viewing angle of the rearview mirror is set to be α, and the target rearview mirror angle to be adjusted for the rearview mirror is set to be β, where the second intersection point A and the first intersection point B are the points where the rearview mirror intersects the set X-axis under the effective viewing angle during the vehicle moving from the initial position C to the target position D.

[0130] Among them, the relationship between the vehicle rotation angle θ, the steering wheel steering angle δ, and the time t is:

[0131] θ = 90° - Aγ∫δdt + K (1)

[0132] In formula (1), 90° is the preset reference angle; A is the vehicle wheelbase; γ is the constant ratio of the steering wheel steering angle δ to the tire steering angle, generally 1 / 15; K is the correction coefficient, which is specifically related to the sensitivity of the vehicle's steering transmission system and other specific automotive electronics; Aγ∫δdt is the first result.

[0133] Specifically, the central controller 120 is configured to determine the target rearview mirror angle based on the integration processing and trigonometric relationship of the vehicle speed signal, the timing information, and the vehicle rotation angle, specifically including: the central controller 120 is configured to obtain the coordinates of the target position according to the vehicle speed signal, the timing information, and the integration result of the vehicle rotation angle; and determine the target rearview mirror angle according to the coordinates of the target position and the trigonometric relationship.

[0134] The vehicle speed signal V of the tangential motion is decomposed into a vertical speed V y and a horizontal speed V x ,

[0135] V y = Vsinθ (2)

[0136] V x = Vcosθ (3)

[0137] At time t, the set horizontal displacement of the vehicle is X', and the set vertical displacement is Y';

[0138] Y' = ∫V y dt (4)

[0139] X' = ∫V x dt (5)

[0140] Taking the initial position C to the target position D as an example, the initial position C is known, or set as the origin when establishing the coordinates. The coordinates of the initial position C are set as (X0, Y0). Therefore, the corresponding coordinate position changes:

[0141] X1 = X' + X0 (6)

[0142] Y1 = Y' + Y0 (7)

[0143] From the above formulas (1)-(7), the coordinates of the target position D can be obtained as (X1, Y1).

[0144] Such as Figure 4 shown, taking the right triangle ADG as an example, ∠ADG = α, then ∠DAG = 90° - α. The equation of the straight line AD can be obtained:

[0145] Y - Y1 = -tan(90° + α)(X - X1) (8)

[0146] Similarly, taking the right triangle BCE as an example, the equation of the straight line CB can be obtained:

[0147] Y - Y0 = -tan(90° + α)(X - X0) (9)

[0148] From the above formulas (8)-(9), the coordinates (X3, Y3) of the second intersection point A and the coordinates (X2, Y2) of the first intersection point B can be obtained.

[0149] From the coordinates of the second intersection point A, the first intersection point B and the initial position C, it can be obtained:

[0150] ∠CBA = arctan{(Y2 - Y0) / (X2 - X0)} (10)

[0151] ∠CAB = arctan{(Y3 - Y0) / (X3 - X0)} (11)

[0152] From the above formulas (10)-(11), it can be determined that:

[0153] ∠ACB = 180° - ∠CBA - ∠CAB (12)

[0154] In the embodiments of the present invention, the target rearview mirror angle that needs to be adjusted for the rearview mirror:

[0155] β = ∠ACB (13)

[0156] In an embodiment of the present invention, by using vehicle signals and timing information, it is determined that the steering mode of the vehicle is a same-direction lane change, and the target rearview mirror angle is calculated, so that the vehicle conditions behind the lane to be changed can be observed more conveniently and continuously, and the adjustment of the rearview mirror during the whole process of vehicle steering and straightening is realized.

[0157] As another alternative solution, the first processing unit 122 is specifically configured to: start timing and generate timing information after receiving a vehicle signal, determine that the steering mode of the vehicle is a lane-changing turn through the vehicle signal and the timing information, calculate the target rearview mirror angle, and generate a target rearview mirror angle adjustment signal.

[0158] As another alternative solution, the central controller 120 is used to obtain the target rearview mirror angle according to the vehicle signal and the timing information, specifically including: the central controller is used to determine the vehicle rotation angle according to the integral processing of the steering wheel angle signal and the timing information; determine the rotation range of the target rearview mirror angle according to the vehicle rotation angle, the preset standard lane width, and the trigonometric relationship.

[0159] In an embodiment of the present invention Figure 5 is a schematic principle diagram for determining that the steering mode of the vehicle is a lane-changing turn through vehicle signals and timing information and calculating the target rearview mirror angle. As Figure 5 shown, the vehicle travels from point a to point b. The straight line L5 is the straight line where the vehicle direction is located at point a. The included angle between the straight line L1 and the straight line L5 is the effective viewing angle α of the rearview mirror. The straight line L4 is the straight line where the vehicle direction is located at point b. The included angle between the straight line L2 and the straight line L4 is the effective viewing angle α of the rearview mirror. A straight line L6 is set, and the included angle between the straight line L6 and the straight line L5 is β. A straight line L3 is set, and the included angle between the straight line L3 and the straight line L6 is the effective viewing angle α of the rearview mirror.

[0160] The inclination angle of the straight line L4 is the tangent angle θ at point b b , that is, the vehicle rotation angle, which can be obtained from the above formula (1) and will not be elaborated here. The inclination angle of the straight line L5 is the tangent angle θ at point a a , which can be obtained through actual measurement; or, directly take point a as the origin to establish a coordinate system, and at this time the tangent angle at point a is 90°. From the trigonometric relationship, the inclination angle of the straight line L2 is 180° - θ a +θ b , and the equation of the straight line L2 can be obtained in combination with the coordinates of point b.

[0161] Let y = b in the equation of the straight line L2, and the distance from point b to other lanes can be obtained; or, as Figure 5 a coordinate system is established, taking the standard lane width of 2m as an example; or a safety value is preset.

[0162] Based on the relationship and included angle between the above-mentioned straight lines, the coordinates of point c can be obtained; then, based on the coordinates of point a and point c, the inclination angle of straight line L3 can be determined.

[0163] Based on the inclination angle of straight line L3 and the included angle between straight line L3 and straight line L6 being the effective viewing angle α, the inclination angle of straight line L6 can be obtained. Combining with the inclination angle of straight line L5, the maximum value β of the target rearview mirror angle can be obtained.

[0164] At this time, it is necessary to set the target rearview mirror angle to be 0 to β.

[0165] Figure 6 Another schematic diagram of the principle for calculating the target rearview mirror angle by determining the steering mode of the vehicle as a lane-changing turn through vehicle signals and timing information is as follows Figure 6 As shown, the vehicle travels from point a to point b. Straight line L4' is the straight line where the vehicle direction is located when the vehicle is at point a, and the included angle between straight line L4' and straight line L1' is the effective viewing angle α of the rearview mirror. Straight line L5' is the straight line where the vehicle direction is located when the vehicle is at point b, and the included angle between straight line L5' and straight line L2' is the effective viewing angle α of the rearview mirror. Set straight line L3', and the included angle between straight line L3' and straight line L1' is β. Set straight line L6', and the included angle between straight line L6' and straight line L3' is the effective viewing angle α of the rearview mirror.

[0166] The included angle between straight line L4' and the X-axis is θ a , and the included angle between straight line L5' and the X-axis is θ b , according to the geometric relationship, let the included angle between straight line L1' and the X-axis be γ1, and the included angle between straight line L3' and the X-axis be γ3. Then: 180° - θ a + α + γ1 = 180°, thus obtaining γ1 = θ a - α. Similarly, γ3 = α - θ can be obtained b . Therefore, β = 180° - 2α + θ a + θ b .

[0167] At this time, it is necessary to set the target rearview mirror angle to be 0 to β.

[0168] In the embodiment of the present invention, by determining the steering mode of the vehicle as a lane-changing turn through vehicle signals and timing information and calculating the target rearview mirror angle, it is possible to more conveniently and continuously observe the vehicle conditions behind the lane that needs to change, and realize the adjustment of the rearview mirror throughout the process of vehicle steering and straightening.

[0169] Such as Figure 2As shown in the figure, the central controller 120 further includes: an A / D converter 121, a power supply 125, a reset 126, and a memory 127. The power supply 125 is used to supply power to the first processing unit 122; the reset 126 is used to reset the first processing unit 122; the memory 127 is used to store data.

[0170] It should be noted that the vehicle signal sent by the vehicle sensor 110 received by the A / D converter 121 is an analog signal. The A / D converter 121 is used to convert the vehicle signal of the analog signal into a vehicle signal of a digital signal, and send the vehicle signal converted into a digital signal to the first processing unit 122.

[0171] Optionally, the data acquired by the vehicle sensor can be stored in a register, and the A / D converter can sample the data acquired by the relevant vehicle sensor from the register.

[0172] The rearview mirror controller 130 is a BCU or an MCU.

[0173] The rearview mirror controller 130 is used to obtain a target rearview mirror angle adjustment signal according to the first control signal, generate a second control signal according to the target rearview mirror angle adjustment signal, and send the second control signal to the rearview mirror motor 150.

[0174] As an optional solution, the rearview mirror controller can generate a second control signal according to the angle of the target rearview mirror.

[0175] As Figure 1 shown in the figure, the rearview mirror controller 130 includes: a second control unit 131 and a second processing unit 132. As Figure 2 shown in the figure, the second control unit 131 includes a CAN bus-related controller and transceiver, that is, a second CAN transceiver 13a and a second CAN controller 13b. The second processing unit 132 includes a rearview mirror control CPU. The second control signal includes a PWM motor control signal.

[0176] The second control unit 131 is used to receive the first control signal and generate a target rearview mirror angle according to the first control signal. Specifically, the second CAN transceiver 13a is used to receive the first control signal; the second CAN controller 13b is used to generate a target rearview mirror angle according to the first control signal.

[0177] The second processing unit 132 is used to generate a second control signal according to the target rearview mirror angle and send the second control signal to the rearview mirror motor 150. Specifically, the rearview mirror control CPU is used to generate a second control signal according to the target rearview mirror angle and send the second control signal to the rearview mirror motor 150.

[0178] As an alternative, the second processing unit 132 may generate a second control signal according to the angle of the target rearview mirror.

[0179] In an embodiment of the present invention, the bus 140 includes a CAN bus.

[0180] The rearview mirror motor 150 is configured to control the rotation device to rotate according to the second control signal, so that the rearview mirror rotates to the target rearview mirror angle. Specifically, the angle of the mirror surface or the mirror body of the rearview mirror is changed to the target rearview mirror angle.

[0181] Figure 7 FIG. is a schematic structural diagram of a vehicle rearview mirror adjustment control system provided by another embodiment of the present invention. Figure 8 For Figure 7 a specific schematic structural diagram of the vehicle rearview mirror adjustment control system in Figure 9 FIG. is another schematic structural diagram of a vehicle rearview mirror adjustment control system provided by another embodiment of the present invention.

[0182] As Figure 7 and Figure 9 shown, the difference between the vehicle rearview mirror adjustment control system 200 and Figures 1-3 the vehicle rearview mirror adjustment control system 100 shown in

[0183] Further, as Figure 8 shown, the difference between the vehicle rearview mirror adjustment control system 200 and Figures 1-3 the vehicle rearview mirror adjustment control system 100 shown in

[0184] Further, when the arithmetic unit 223 is an AI arithmetic module, the AI arithmetic module includes a rearview mirror turning angle AI model that has been pre-trained by AI. The AI arithmetic module is used to calculate the target rearview mirror angle of the vehicle in real time according to a set algorithm or model. The arithmetic unit 223 is specifically configured to: obtain the target rearview mirror angle according to the vehicle signal, the timing information, and the rearview mirror turning angle AI model.

[0185] Optionally, the rearview mirror turning angle AI model is:

[0186] P(M│V)=mM 5 +nN 2 +pP 3

[0187] Among them, M is the steering wheel turning angle, N is the time for the steering wheel to rotate, P is the vehicle driving speed, m, n, and p are parameters to be calculated during the AI cultivation process, and P(P│V) is the optimal target rearview mirror angle.

[0188] In the field of artificial intelligence, AI cultivation uses a large number of accelerators (such as GPUs or CPUs, etc.) to find a suitable neural network architecture and calculate the optimal structural parameters of the neural network so that the network can complete specific tasks. Generally speaking, AI cultivation is to "feed" a large amount of data to the machine to let it learn to recognize and distinguish objects.

[0189] In the embodiment of the present invention, by adding an AI operation module, the system becomes more intelligent, the processing speed is greatly increased and power is saved, which can meet the high processing speed requirements from collecting vehicle signals by vehicle sensors to controlling the rotation of the rearview mirror, especially accelerating the processing speed of the straight lane change algorithm and the right-angle turn algorithm.

[0190] Figure 10 It is a schematic structural diagram of a vehicle rearview mirror adjustment control system provided by another embodiment of the present invention. As Figure 10 shown, the difference between the vehicle rearview mirror adjustment control system 300 and Figures 1-3 the vehicle rearview mirror adjustment control system 100 shown is that: the vehicle sensor 310 only includes a steering wheel angle sensor 311.

[0191] Furthermore, the difference between the vehicle rearview mirror adjustment control system 300 and Figures 1-3 the vehicle rearview mirror adjustment control system 100 shown is also that: the first processing unit 322 is used to obtain the steering wheel rotation angle according to the steering wheel angle signal, and obtain the target rearview mirror angle according to the steering wheel rotation angle. Among them, the first processing unit 322 is specifically used to: determine 1 / 2 of the steering wheel rotation angle as the target rearview mirror angle.

[0192] In the embodiment of the present invention, 1 / 2 of the steering wheel rotation angle is determined as the target rearview mirror angle, and the mathematical model used is simple; during the same-direction lane change and turning of the vehicle according to the steering wheel rotation angle, the dynamic adjustment of the rearview mirror angle is carried out, the obtained information is simple, and the operation is simple and fast.

[0193] Based on Figures 1-9 the vehicle rearview mirror adjustment control system shown, the embodiment of the present invention provides a vehicle rearview mirror adjustment control method, which is applied to the vehicle rearview mirror adjustment control system, as Figure 11 shown, the method includes:

[0194] Step 401, start timing after receiving the vehicle signal to generate timing information, and the vehicle signal includes a steering wheel angle signal and a vehicle speed signal.

[0195] Step 402: Obtain the target rearview mirror angle based on the vehicle signal and the timing information.

[0196] Step 403: Control the rotating device to rotate according to the target rearview mirror angle, so that the rearview mirror rotates to the target rearview mirror angle.

[0197] In the technical solution of a vehicle rearview mirror adjustment control method provided by an embodiment of the present invention, timing starts after receiving a vehicle signal to generate timing information. The vehicle signal includes a steering wheel angle signal and a vehicle speed signal; the target rearview mirror angle is obtained based on the vehicle signal and the timing information; the rotating device is controlled to rotate according to the target rearview mirror angle, so that the rearview mirror rotates to the target rearview mirror angle. The embodiment of the present invention can continuously adjust the rearview mirror according to the steering wheel angle signal and the vehicle speed signal, can more conveniently and continuously observe the vehicles behind the lane whose situation needs to change, and realizes the adjustment of the rearview mirror throughout the whole process of vehicle steering and straightening.

[0198] Based on Figures 1-9 the vehicle rearview mirror adjustment control system shown, an embodiment of the present invention provides another vehicle rearview mirror adjustment control method, which is applied to the vehicle rearview mirror adjustment control system, as Figure 12 shown, and this method includes:

[0199] Step 501: Start timing after receiving a vehicle signal to generate timing information. The vehicle signal includes a steering wheel angle signal and a vehicle speed signal.

[0200] In an embodiment of the present invention, a vehicle sensor collects a vehicle signal and sends the vehicle signal to a central controller. The central controller starts timing after receiving the vehicle signal to generate timing information. The vehicle sensor includes a steering wheel angle sensor and a vehicle speed sensor.

[0201] Optionally, the vehicle signal further includes: a turn signal. The vehicle sensor further includes a turn signal sensor.

[0202] Step 502: Obtain the target rearview mirror angle based on the vehicle signal and the timing information.

[0203] In an embodiment of the present invention, the central controller obtains the target rearview mirror angle based on the vehicle signal and the timing information.

[0204] As an optional solution, step 502 specifically includes: determining that the steering mode of the vehicle is a same-direction lane change through the vehicle signal and the timing information, and calculating the target rearview mirror angle; or determining that the steering mode of the vehicle is a turning lane change through the vehicle signal and the timing information, and calculating the target rearview mirror angle.

[0205] As another optional solution, as Figure 13 shown, step 502 specifically includes:

[0206] Step 5021: Determine the vehicle rotation angle based on the integral processing of the steering wheel angle signal and the timing information.

[0207] Specifically, step 5021 specifically includes: multiplying the integral result of the steering wheel angle signal and the timing information, the vehicle wheelbase, and the constant ratio of the steering wheel steering angle to the tire steering angle to obtain a first result, and then obtaining the vehicle rotation angle based on the first result, a preset reference angle, and a correction coefficient.

[0208] Step 5022: Determine the target rearview mirror angle based on the integral processing and trigonometric relationship of the vehicle speed signal, the timing information, and the vehicle rotation angle.

[0209] Specifically, step 5022 specifically includes: obtaining the coordinates of the target position based on the integral result of the vehicle speed signal, the timing information, and the vehicle rotation angle; determining the target rearview mirror angle based on the coordinates of the target position and the trigonometric relationship.

[0210] As another alternative, as Figure 14 shown, step 502 specifically includes:

[0211] Step 502a: Determine the vehicle rotation angle based on the integral processing of the steering wheel angle signal and the timing information.

[0212] Specifically, step 502a specifically includes: multiplying the integral result of the steering wheel angle signal and the timing information, the vehicle wheelbase, and the constant ratio of the steering wheel steering angle to the tire steering angle to obtain a first result, and then obtaining the vehicle rotation angle based on the first result, a preset reference angle, and a correction coefficient.

[0213] Step 502b: Determine the rotation range of the target rearview mirror angle based on the vehicle rotation angle, a preset standard lane width, and the trigonometric relationship.

[0214] As another alternative, the central controller includes an arithmetic unit, the arithmetic unit includes an AI arithmetic module, the AI arithmetic module includes a rearview mirror turning angle AI model that has been pre-trained by AI, and the AI arithmetic module is used to calculate the target rearview mirror angle of the vehicle in real time according to a set algorithm or model. Step 502 specifically includes: obtaining the target rearview mirror angle based on the vehicle signal, the timing information, and the rearview mirror turning angle AI model that has been pre-trained by AI.

[0215] Optionally, the rearview mirror turning angle AI model is:

[0216] P(M│V)=mM 5 +nN 2 +pP 3

[0217] Wherein, M is the steering wheel turning angle, N is the time for the steering wheel to rotate, P is the vehicle driving speed, m, n, and p are parameters to be calculated during the AI cultivation process, and P(P│V) is the optimal target rearview mirror angle.

[0218] Step 503: Generate a first control signal according to the target rearview mirror angle.

[0219] In the embodiment of the present invention, the central controller generates a first control signal according to the target rearview mirror angle and sends the first control signal to the rearview mirror controller.

[0220] Step 504: Generate a second control signal according to the first control signal.

[0221] In the embodiment of the present invention, the rearview mirror controller generates a second control signal according to the first control signal and sends the second control signal to the rearview mirror motor.

[0222] Step 505: Control the rotating device to rotate according to the second control signal so that the rearview mirror rotates to the target rearview mirror angle.

[0223] In the embodiment of the present invention, the rearview mirror motor controls the rotating device to rotate according to the second control signal so that the rearview mirror rotates to the target rearview mirror angle.

[0224] In the technical solution of a vehicle rearview mirror adjustment control method provided by the embodiment of the present invention, timing starts after receiving a vehicle signal to generate timing information, and the vehicle signal includes a steering wheel angle signal and a vehicle speed signal; a target rearview mirror angle is obtained according to the vehicle signal and the timing information; the rotating device is controlled to rotate according to the target rearview mirror angle so that the rearview mirror rotates to the target rearview mirror angle. The embodiment of the present invention can continuously adjust the rearview mirror according to the steering wheel angle signal and the vehicle speed signal, can more conveniently continuously observe the vehicles behind the lanes that need to change, and realizes the adjustment of the rearview mirror throughout the whole process of vehicle steering and straightening.

[0225] Based on Figure 10 the vehicle rearview mirror adjustment control system shown, the embodiment of the present invention provides another vehicle rearview mirror adjustment control method, which is applied to the vehicle rearview mirror adjustment control system, as Figure 15 shown, and the method includes:

[0226] Step 601: Obtain the target rearview mirror angle according to the steering wheel angle signal.

[0227] Step 602: Control the rotating device to rotate according to the target rearview mirror angle so that the rearview mirror rotates to the target rearview mirror angle.

[0228] In the technical solution of a vehicle rearview mirror adjustment control method provided by an embodiment of the present invention, a target rearview mirror angle is obtained according to a steering wheel angle signal; a rotating device is controlled to rotate according to the target rearview mirror angle so that the rearview mirror rotates to the target rearview mirror angle. The embodiment of the present invention can continuously adjust the rearview mirror according to the steering wheel angle signal, can more conveniently and continuously observe the vehicle conditions behind the lanes whose changes are required, and realizes the adjustment of the rearview mirror during the whole process of vehicle turning and straightening.

[0229] Based on Figure 10 the vehicle rearview mirror adjustment control system shown, an embodiment of the present invention provides another vehicle rearview mirror adjustment control method, which is applied to the vehicle rearview mirror adjustment control system, as Figure 16 shown, the method includes:

[0230] Step 701, obtain a target rearview mirror angle according to a steering wheel angle signal.

[0231] In the embodiment of the present invention, step 701 specifically includes: obtaining a steering wheel rotation angle according to the steering wheel angle signal, and determining 1 / 2 of the steering wheel rotation angle as the target rearview mirror angle.

[0232] Step 702, generate a first control signal according to the target rearview mirror angle.

[0233] In the embodiment of the present invention, the central controller generates a first control signal according to the target rearview mirror angle and sends the first control signal to the rearview mirror controller.

[0234] Step 703, generate a second control signal according to the first control signal.

[0235] In the embodiment of the present invention, the rearview mirror controller generates a second control signal according to the first control signal and sends the second control signal to the rearview mirror motor.

[0236] Step 704, control the rotating device to rotate according to the second control signal so that the rearview mirror rotates to the target rearview mirror angle.

[0237] In the embodiment of the present invention, the rearview mirror motor controls the rotating device to rotate according to the second control signal so that the rearview mirror rotates to the target rearview mirror angle.

[0238] In the technical solution of a vehicle rearview mirror adjustment control method provided by an embodiment of the present invention, a target rearview mirror angle is obtained according to a steering wheel angle signal; a rotating device is controlled to rotate according to the target rearview mirror angle so that the rearview mirror rotates to the target rearview mirror angle. The embodiment of the present invention can continuously adjust the rearview mirror according to the steering wheel angle signal, can more conveniently and continuously observe the vehicle conditions behind the lanes whose changes are required, and realizes the adjustment of the rearview mirror during the whole process of vehicle turning and straightening.

[0239] An embodiment of the present invention further provides an MPU chip, as Figure 17 shown, which is a diagram of the application of the MPU chip to the adjustment of the rearview mirror. The MPU chip is configured to: obtain a vehicle signal of a vehicle sensor, obtain a target rearview mirror angle according to the vehicle signal, generate a target rearview mirror angle adjustment signal according to the target rearview mirror angle, and transmit the target rearview mirror angle adjustment signal to a rearview mirror controller, so that the rearview mirror controller controls the rearview mirror to rotate according to the target rearview mirror angle adjustment signal.

[0240] Optionally, the vehicle sensor is a steering wheel angle sensor; the vehicle signal is a steering wheel angle signal; specifically, the MPU chip is configured to: obtain a steering wheel rotation angle according to the steering wheel angle signal, and determine 1 / 2 of the steering wheel rotation angle as the target rearview mirror angle.

[0241] The foregoing is only a preferred embodiment of this specification and is not intended to limit this specification. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this specification shall be included within the scope of protection of this specification.

Claims

1. A vehicle rearview mirror adjustment control system, characterized in that, The system includes: Vehicle sensors, configured to acquire vehicle signals of the vehicle and send the vehicle signals to a central controller; the vehicle sensors include a steering wheel angle sensor and a vehicle speed sensor; the vehicle signals include a steering wheel angle signal and a vehicle speed signal; The central controller, configured to start timing and generate timing information after receiving the vehicle signals, obtain a target rearview mirror angle based on the vehicle signals and the timing information, generate a first control signal according to the target rearview mirror angle, and output the first control signal so that the first control signal is transmitted to a rearview mirror controller; The central controller includes: a first processing unit; The first processing unit is configured to start timing and generate timing information after receiving the vehicle signals, multiply the integration result of the steering wheel angle signal and the timing information, the vehicle wheelbase, and the constant ratio of the steering wheel steering angle and the tire steering angle to obtain a first result, obtain a vehicle rotation angle based on the first result, a preset reference angle, and a correction coefficient, and when the steering mode of the vehicle is a same-direction lane change, determine the target rearview mirror angle according to the vehicle speed signal, the timing information, the integral processing of the vehicle rotation angle, and the trigonometric relationship, or when the steering mode of the vehicle is a steering lane change, determine the rotation range of the target rearview mirror angle according to the vehicle rotation angle, a preset standard lane width, and the trigonometric relationship; the vehicle rotation angle is the angle change during the tire lane-cutting offset process; The rearview mirror controller is configured to obtain the target rearview mirror angle according to the first control signal, generate a second control signal according to the target rearview mirror angle, and send the second control signal to a rearview mirror motor; The rearview mirror motor is configured to control a rotating device to rotate according to the second control signal so that the rearview mirror rotates to the target rearview mirror angle.

2. The system according to claim 1, wherein The central controller further includes a first control unit; The first control unit is configured to generate a first control signal according to the target rearview mirror angle and output the first control signal so that the first control signal is transmitted to the rearview mirror controller.

3. The system according to claim 1, wherein Specifically, the first processing unit is configured to: start timing and generate timing information after receiving the vehicle signals, determine that the steering mode of the vehicle is a same-direction lane change through the vehicle signals and the timing information, and calculate the target rearview mirror angle.

4. The system according to claim 1, characterized in that, Specifically, the first processing unit is configured to: start timing and generate timing information after receiving the vehicle signals, determine that the steering mode of the vehicle is a steering lane change through the vehicle signals and the timing information, and calculate the target rearview mirror angle.

5. The system according to any one of claims 1-4, characterized in that The rearview mirror controller includes: a second control unit and a second processing unit; The second control unit is configured to receive the first control signal and generate a target rearview mirror angle according to the first control signal; The second processing unit is configured to generate a second control signal according to the target rearview mirror angle and send the second control signal to the rearview mirror motor.

6. The system according to claim 1, wherein The vehicle sensors further include a turn signal sensor; the vehicle signals further include a turn signal.

7. The system according to claim 1, wherein The first processing unit is configured to determine the target rearview mirror angle according to the vehicle speed signal, the timing information, and the integral processing and trigonometric relationship of the vehicle rotation angle, specifically including: The first processing unit is configured to obtain the coordinates of the target position according to the vehicle speed signal, the timing information, and the integral result of the vehicle rotation angle; determine the target rearview mirror angle according to the coordinates of the target position and the trigonometric relationship.

8. The system according to claim 1, wherein The first processing unit includes: a register, an ADC, and a CPU; The register is configured to store the vehicle signal; The ADC is configured to sample the vehicle signal in the register and transmit the sampled data to the CPU; The CPU is configured to perform relevant data processing and operations on the sampled data to obtain the target rearview mirror angle, and generate a target rearview mirror angle adjustment signal according to the target rearview mirror angle.

9. The system according to claim 2, wherein The first control unit includes: a first CAN controller and a first CAN transceiver; The first CAN controller is configured to receive the target rearview mirror angle adjustment signal and generate a first control signal according to the target rearview mirror angle adjustment signal; The first CAN transceiver is configured to transmit the first control signal to the rearview mirror controller.

10. The system according to claim 5, wherein The rearview mirror controller includes: a second CAN controller, a second CAN transceiver, and a rearview mirror control CPU; The second CAN transceiver is configured to receive the first control signal; The second CAN controller is configured to generate the target rearview mirror angle according to the first control signal; The rearview mirror control CPU is configured to generate the second control signal according to the target rearview mirror angle and send the second control signal to the rearview mirror motor.

11. A method for adjusting and controlling a vehicle rearview mirror, characterized in that, Applied to a vehicle rearview mirror adjustment control system, the method includes: Start timing after receiving the vehicle signal to generate timing information, where the vehicle signal includes a steering wheel angle signal and a vehicle speed signal; Obtain the target rearview mirror angle according to the vehicle signal and the timing information; Control the rotation device to rotate according to the target rearview mirror angle so that the rearview mirror rotates to the target rearview mirror angle; The obtaining the target rearview mirror angle according to the vehicle signal and the timing information includes: Multiply the integral result of the steering wheel angle signal and the timing information, the vehicle wheelbase, and the constant ratio of the steering wheel steering angle and the tire steering angle to obtain a first result. According to the first result, a preset reference angle, and a correction coefficient, obtain the vehicle rotation angle. When the vehicle's steering mode is a same-direction lane change, determine the target rearview mirror angle according to the vehicle speed signal, the timing information, and the integral processing and trigonometric relationship of the vehicle rotation angle, or when the vehicle's steering mode is a turning lane change, determine the rotation range of the target rearview mirror angle according to the vehicle rotation angle, a preset standard lane width, and the trigonometric relationship; the vehicle rotation angle is the angle change during the tire lane-cutting offset process.

12. The method according to claim 11, wherein, The obtaining the target rearview mirror angle according to the vehicle signal and the timing information specifically includes: Based on the vehicle signal and the timing information, it is determined that the steering mode of the vehicle is a same-direction lane change, and the target rearview mirror angle is calculated; or Based on the vehicle signal and the timing information, it is determined that the steering mode of the vehicle is a turning lane change, and the target rearview mirror angle is calculated.

13. The method according to claim 11, wherein The determination of the target rearview mirror angle based on the vehicle speed signal, the timing information, and the integral processing and trigonometric relationship of the vehicle rotation angle specifically includes: Based on the vehicle speed signal, the timing information, and the integral result of the vehicle rotation angle, the coordinates of the target position are obtained; the target rearview mirror angle is determined according to the coordinates of the target position and the trigonometric relationship.

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