Vehicle door opening partition early warning method, system with vehicle door opening partition early warning method and vehicle

Abstract

The invention discloses a vehicle door opening partition early warning method, a system with the vehicle door opening partition early warning method and a vehicle, and belongs to the field of vehicle safety. The vehicle door opening partition early warning method comprises the following steps that the positions and the motion states of traffic participants behind a vehicle are detected in real time; according to the position and the motion state of the traffic participant, calculating the position and the time when the traffic participant travels to the specific area of the vehicle; according to the position and the time when the traffic participant travels to the specific area of the vehicle, the risk level of each vehicle door of the vehicle in the opening process is determined; acquiring action state information of door lock master control and door lock sub-control of the vehicle; according to the respective risk level of each vehicle door of the vehicle in the opening process and the action state information of the door lock master control and the door lock sub-control of the vehicle, determining the respective early warning level of each vehicle door of the vehicle in the opening process; according to the early warning level, in the vehicle door opening process of the vehicle, early warning information corresponding to the early warning level is executed.

Description

Technical Field

[0001] This application belongs to the field of vehicle safety, and particularly relates to a method for warning of door opening partitions, a system and a vehicle having the same. Background Art

[0002] During the development process of vehicle design, safety has always been the focus of attention. To ensure the safety of the driver and passengers when opening the door and to protect the safety of other traffic participants behind the vehicle, the prior art usually uses a single radar to detect the collision risk behind the vehicle first, and then gives warnings by means of sound, light or locking according to the detection results. Although it provides support for the active safety of the vehicle to a certain extent, it cannot give accurate warnings for different door areas, and the perception is poor, so that it cannot provide more intuitive and clear warning information for the driver and passengers. Summary of the Invention

[0003] In view of this, the first object of this application is to provide a method for warning of door opening partitions to solve the problem of low accuracy of door opening warnings in the prior art.

[0004] The second object of this application is to provide a system and a vehicle for implementing the above method.

[0005] To achieve the above technical object, the first aspect of this application provides a method for warning of door opening partitions, including the following steps: Detect the position and movement state of traffic participants behind the vehicle in real time; According to the position and movement state of the traffic participants, calculate the position and time when the traffic participants reach a specific area of the vehicle; According to the position and time when the traffic participants reach a specific area of the vehicle, determine the respective risk levels of each door of the vehicle during the opening process; Obtain the action state information of the master door lock and the slave door locks of the vehicle; According to the respective risk levels of each door of the vehicle during the opening process and the action state information of the master door lock and the slave door locks of the vehicle, determine the respective warning levels of each door of the vehicle during the opening process; According to the warning level, execute the warning information corresponding to the warning level during the opening process of the vehicle door.

[0006] In a possible design, the movement state of the traffic participants includes speed and direction.

[0007] In a possible design, the specific area of the vehicle extends outward along the width direction of the vehicle from the starting position of the vehicle.

[0008] In a possible design, the length dimension of a specific area of the vehicle is user-defined.

[0009] In a possible design, when the position of the traffic participant when reaching the specific area of the vehicle is within the specific area of the vehicle, and the time when the traffic participant reaches the specific area of the vehicle is less than or equal to a preset threshold, the risk level is a high risk; When the position of the traffic participant when reaching the specific area of the vehicle is outside the specific area of the vehicle, or the time when the traffic participant reaches the specific area of the vehicle is greater than the preset threshold, the risk level is a low risk.

[0010] Further, when the risk level is a high risk, and the action status information of the master vehicle door lock is unlocked, and the action status information of the slave vehicle door locks is unlocked, the warning level is a third-level warning; When the risk level is a high risk, and the action status information of the master vehicle door lock is unlocked, and the action status information of the slave vehicle door locks is locked, the warning level is a second-level warning; When the risk level is a low risk, and the action status information of the master vehicle door lock is unlocked, the warning level is a first-level warning.

[0011] In a possible design, the warning information includes turning on the ambient lights and the rearview mirror lights corresponding to the vehicle doors, and playing a warning prompt, for characterizing the warning level of the vehicle doors.

[0012] Further, the ambient lights and the rearview mirror lights can emit light beams of different indication colors, and the warning prompts include "Please pay attention to the safety on the side of the vehicle", "Be careful of obstacles on the side of the vehicle", and "Danger, do not open the door".

[0013] The second aspect of the present application provides a door opening partition warning system, including a detector, a body control unit, a cockpit control unit, and a driving assistance control unit. Among them, the detector is used to detect the position and motion state of traffic participants behind the vehicle in real time. The driving assistance control unit is used to calculate the position and time when the traffic participant reaches the specific area of the vehicle, determine the respective risk levels of the vehicle doors during the opening process, and determine the respective warning levels of the vehicle doors during the opening process. The body control unit is used to obtain the action status information of the master vehicle door lock and the slave vehicle door locks. The cockpit control unit is used to execute the warning information corresponding to the warning level.

[0014] The third aspect of the present application provides a vehicle, including the above-mentioned door opening partition warning system.

[0015] By adopting the above technical solutions, the present application has the following beneficial effects: The present application determines the position and time when a traffic participant behind the vehicle reaches a specific area of the vehicle in real time. First, it determines the respective risk levels of each vehicle door during the opening process, and then combines the respective risk levels of each vehicle door during the opening process, as well as the action status information of the vehicle's central door lock and door lock sub-controls, to determine the respective warning levels of each vehicle door during the opening process. This can not only provide more intuitive and clear warning information for the driver and passengers, but also contribute to improving the safety of the vehicle during use. Description of the Drawings

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a flowchart of a method for warning of door opening partition of an embodiment of the present invention.

[0018] Figure 2 For Figure 1 the calculation principle diagram of the method for warning of door opening partition shown.

[0019] Figure 3 It is a structural framework diagram of a system for warning of door opening partition of another embodiment of the present invention.

[0020] Description of the Reference Numerals: 1. Vehicle; 2. Traffic Participant; 11. Detector; 12. Body Control Unit; 13. Cockpit Control Unit; 14. Driving Assistance Control Unit; T. Specific Area; P. Position of the traffic participant when reaching the specific area; L. Distance between the traffic participant and point P. Detailed Embodiments

[0021] The following will describe in detail specific embodiments of the present invention with reference to the drawings. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the description of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0022] In the description of the present invention, unless otherwise clearly defined and limited, terms such as "set", "installed", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0023] The orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the inventive product is customarily placed during use. It is only for the convenience of description and simplification of the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0024] Terms such as "first", "second", "third", etc. are only used to distinguish elements with similar attributes, rather than indicating or implying relative importance or a specific order.

[0025] The term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion. In addition to the listed elements, it may also include other elements not specifically listed.

[0026] During the development process of vehicle design, safety has always been the focus of attention, especially the active safety performance of vehicles. In order to ensure the safety of vehicle occupants when opening the door and protect the safety of other traffic participants behind the vehicle (such as surrounding vehicles and pedestrians), according to what the inventor has learned, the prior art usually first uses a single radar to detect the collision risk behind the vehicle, and then issues a warning through methods such as sound, light or locking according to the detection result. Although it provides support for the active safety of the vehicle to a certain extent, due to reasons such as single warning information and unclear interactive prompts, it is unable to accurately warn different door areas, with poor perception, so that it cannot provide more intuitive and clear warning information for vehicle occupants.

[0027] In order to solve the problem of low accuracy of door opening warning in the prior art, it is necessary to provide a method for warning different areas of door opening, so as to provide more intuitive and clear warning information for vehicle occupants and improve the safety during vehicle use.

[0028] Embodiment 1 Please refer to Figure 1 and Figure 2, an embodiment of the first aspect of the present invention provides a door opening partition warning method, which is applied to a door opening partition warning system. It should be noted that the door opening partition warning system mentioned here at least includes a warning device (such as an ambient light, a rearview mirror light, a speaker, and a display module, etc.) for warning the driver and passengers of the current door opening environmental risks of the vehicle 1, so that the driver and passengers can perceive the impact of other traffic participants 2 on the door opening action through vision or hearing and adjust their own behaviors in time.

[0029] In the first embodiment, the door opening partition warning method includes the following steps: Step S101, detect the position and motion state of traffic participants behind the vehicle in real time.

[0030] It should be noted that the area behind the vehicle 1 mentioned here includes but is not limited to the left rear and right rear of the vehicle 1; the traffic participants 2 mentioned include but are not limited to other vehicles and pedestrians around the vehicle 1, etc.; the motion state of the traffic participants 2 includes but is not limited to speed and direction. Specifically, the position of the traffic participants 2 mentioned here refers to the position of the traffic participants 2 relative to the vehicle 1, the speed of the traffic participants 2 refers to the relative speed of the traffic participants 2 relative to the vehicle 1, and the direction of the traffic participants 2 refers to the relative direction of the traffic participants 2 relative to the vehicle 1.

[0031] In step S101, the detection of the position and motion state of the traffic participants 2 behind the vehicle 1 can be obtained by detectors (such as rear corner millimeter wave radar, ultrasonic radar, rearview camera) at the rear of the vehicle 1. Preferably, the number of detectors at the rear of the vehicle 1 is at least two, and when the number of detectors at the rear of the vehicle 1 is two, the two detectors are respectively installed at the left rear corner and right rear corner positions of the vehicle 1.

[0032] Step S102, calculate the position and time when the traffic participants reach a specific area of the vehicle according to the position and motion state of the traffic participants.

[0033] It should be noted that the specific area T of the vehicle 1 mentioned here refers to a virtual collision area that extends outward from the starting position of the vehicle 1 (such as the rear edge of the rear door when looking along the front-rear direction of the vehicle 1) along the width direction of the vehicle 1 to a preset length. Specifically, the starting position of the virtual collision area is closer to the front of the vehicle 1 in the front-rear direction of the vehicle 1 compared to the position of the corresponding detector at the rear of the vehicle 1. That is, when looking along the front-rear direction of the vehicle 1, the starting position of the virtual collision area is in front of the position of the corresponding detector at the rear of the vehicle 1.

[0034] In some embodiments, to ensure the safe opening of each door of vehicle 1, the number of specific areas T can be multiple. In the first embodiment, the number of specific areas T is two. One of the two specific areas T is located on the left side of the left rear door of vehicle 1 and extends from the left rear door of vehicle 1 towards the left side of vehicle 1; the other of the two specific areas T is located on the right side of the right rear door of vehicle 1 and extends from the right rear door of vehicle 1 towards the right side of vehicle 1. Preferably, the extension length of each specific area T is greater than the rotation radius when the rear door of vehicle 1 is opened (such as 1m, 2m), and they are symmetrically arranged. Specifically, the length dimension of each specific area T can be user-defined, such as by setting the extension length of each specific area T in the left-right direction of vehicle 1 on the center console of vehicle 1.

[0035] In step S102, the calculation of the position P and time TTC when the traffic participant 2 reaches the specific area T of vehicle 1 can be achieved by the driving assistance control unit of vehicle 1. As Figure 2 shown, for the calculation of the position P when reaching the specific area T on the right side of vehicle 1, a spatial Cartesian coordinate system (such as the front-rear direction of vehicle 1 is the x-direction, the left-right direction of vehicle 1 is the y-direction, and the up-down direction of vehicle 1 is the z-direction) can be established with the position of the detector at the rear right of vehicle 1 as the origin (0, 0, 0). Since the specific area T is perpendicular to the x-direction, the x-coordinate of any position within the specific area T is known. Then, when the position (x1, y1, z1) of the traffic participant 2 is obtained through step S101, the position P can be determined according to the detected motion state (such as the motion direction) and position of the traffic participant 2. Specifically, starting from the position (x1, y1, z1) of the traffic participant 2, and then approaching the specific area T along the motion vector direction of the traffic participant 2. When the traffic participant 2 intersects with a part within the specific area T or a part outside the specific area T, the position P (x2, y2, z2) can be determined through the intersection point. It should be noted that due to the differences in the external dimensions of different traffic participants 2, to ensure the prediction accuracy, the position P when the traffic participant 2 reaches the specific area T of vehicle 1 mentioned here refers to the corner point on the traffic participant 2 that approaches the specific area T first, such as the position closer to the front of vehicle 1 on the traffic participant 2.

[0036] For the calculation of the time TTC when the traffic participant 2 reaches the specific area T of vehicle 1, it can be determined according to formula (1) as: (1) where L refers to the distance between the traffic participant 2 and point P, and V refers to the relative speed of the traffic participant 2 relative to vehicle 1.

[0037] Step S103: Determine the respective risk levels of each door of the vehicle during the opening process based on the position and time when a traffic participant reaches a specific area of the vehicle.

[0038] It should be noted that the risk levels mentioned here include high risk and low risk. Specifically, when the position P of traffic participant 2 when reaching the specific area T of vehicle 1 is within the specific area T of vehicle 1 (i.e., there is an intersection between traffic participant 2 and the specific area T), and the time TTC when traffic participant 2 reaches the specific area T of vehicle 1 is less than or equal to a preset threshold (such as 2s - 3s), the risk level is high risk; when the position P of traffic participant 2 when reaching the specific area T of vehicle 1 is outside the specific area T of vehicle 1 (i.e., there is no intersection between traffic participant 2 and the specific area T), or the time TTC when traffic participant 2 reaches the specific area T of vehicle 1 is greater than the preset threshold (such as 2s, 3s), the risk level is low risk.

[0039] Specifically, the respective risk levels of each door of vehicle 1 during the opening process are determined according to Table 1 below.

[0040] Table 1: Corresponding relationship between risk level, TTC, and P

[0041] For example, as Figure 2 shown, from a top-down perspective, for traffic participant 2 located at the right rear of vehicle 1, when the position P when reaching the specific area T of vehicle 1 is within the specific area T of vehicle 1, if the TTC is less than or equal to the preset threshold, the risk level of the right rear door of vehicle 1 during the opening process is high risk, the risk level of the left rear door of vehicle 1 during the opening process is low risk. Ignoring the distance between the front and rear doors of vehicle 1, the risk level of the right front door of vehicle 1 during the opening process is also high risk, and the risk level of the left front door of vehicle 1 during the opening process is also low risk. That is, the respective risk levels of each door of vehicle 1 during the opening process can be determined.

[0042] In step S103, for the determination of the respective risk levels of each door of vehicle 1 during the opening process, it can be achieved by the driving assistance control unit of vehicle 1.

[0043] Step S104: Obtain the action status information of the vehicle's central door lock and door lock sub - controls.

[0044] It should be noted that the central door lock of vehicle 1 mentioned here refers to the master door switch located at the driver's seat of vehicle 1, and the door lock sub - controls of vehicle 1 refer to the inner door handles or individual switches located at each door of vehicle 1. The action status information includes but is not limited to unlocking and locking, etc.

[0045] In step S104, the acquisition of the action status information of the central door lock and the sub-door locks of vehicle 1 can be achieved through the body control unit of vehicle 1. It is worth mentioning that, to ensure compliance with the requirements of laws and regulations and achieve the expected technical effects of this application, the acquisition of the action status information of the central door lock and the sub-door locks of vehicle 1 is based on the condition that vehicle 1 is in a stationary state or its absolute speed is within 5 km / h.

[0046] Step S105: Determine the warning level of each door of the vehicle during the opening process according to the risk level of each door of the vehicle during the opening process and the action status information of the central door lock and the sub-door locks of the vehicle.

[0047] It should be noted that the warning levels mentioned here include third-level warning, second-level warning, and first-level warning. Specifically, when the risk level is high risk, the action status information of the central door lock of vehicle 1 is unlocking, and the action status information of the sub-door locks of vehicle 1 is unlocking, the warning level is third-level warning; when the risk level is high risk, the action status information of the central door lock of vehicle 1 is unlocking, and the action status information of the sub-door locks of vehicle 1 is locking, the warning level is second-level warning; when the risk level is low risk and the action status information of the central door lock of vehicle 1 is unlocking, the warning level is first-level warning.

[0048] Specifically, the warning level of each door of vehicle 1 during the opening process is determined according to Table 2 below.

[0049] Table 2: Corresponding relationship between warning level, risk level, and door lock status

[0050] For example, as Figure 2 shown, since the risk level of the right rear door of vehicle 1 during the opening process is high risk, therefore, during the opening process of the right rear door of vehicle 1, that is, when the unlocking actions of the central door lock and the sub-door locks of vehicle 1 are completed in sequence, the warning levels of the right rear door of vehicle 1 include second-level warning and third-level warning, and it is first second-level warning and then third-level warning. Similarly, the warning levels of the right front door of vehicle 1 during the opening process also include second-level warning and third-level warning. Since the risk levels of the left rear door and the left front door of vehicle 1 are both low risk, the warning levels of the left rear door and the left front door of vehicle 1 during the opening process are both first-level warning.

[0051] In step S105, the determination of the warning level of each door of vehicle 1 during the opening process can be achieved through the driving assistance control unit of vehicle 1.

[0052] Step S106: According to the warning level, during the opening process of the vehicle door, execute the warning information corresponding to the warning level.

[0053] It should be noted that the warning information mentioned here includes lighting the ambient lights and rearview mirror lights corresponding to the vehicle door, and playing warning prompts, which are used to represent the warning level of the vehicle door. Specifically, the warning information can be represented by a combination of ambient lights and rearview mirror lights that can emit light beams of different indication colors, and warning prompts including "Please pay attention to safety on the side of the vehicle", "Be careful of obstacles on the side of the vehicle", and "Danger, do not open the door". For example, when executing a first-level warning, the ambient lights and rearview mirror LED lights on the corresponding side are constantly lit green; when executing a second-level warning, the ambient lights and rearview mirror LED lights on the corresponding side are constantly lit yellow, and the in-vehicle speaker on the corresponding side plays warning prompts such as "Be careful of obstacles on the side of the vehicle"; when executing a third-level warning, the ambient lights and rearview mirror LED lights on the corresponding side flash red, and the flashing frequency can be 3Hz or 4Hz. At the same time, the in-vehicle speaker on the corresponding side plays warning prompts such as "Danger, do not open the door".

[0054] Furthermore, in order to provide intuitive and clear warning information to the driver and passengers, the corresponding warning level can also be represented by displaying text information on the central control screen of the vehicle and changing the volume of the warning prompts. For example, the playback volume of the in-vehicle speaker when executing a third-level warning is higher than that of the in-vehicle speaker when executing a corresponding second-level warning. Another example is that in a working condition where the in-vehicle environment is relatively noisy, the playback volume of the in-vehicle speaker can be adaptively increased to enhance the driver and passengers' perception of the warning information.

[0055] In step S106, the execution of the warning information corresponding to the warning level can be achieved through the vehicle's cockpit control unit, or through the combined action of the body control unit and the cockpit control unit. For example, the body control unit executes the lighting of the ambient lights and rearview mirror lights, and the cockpit control unit executes the playback of the warning prompts.

[0056] Embodiment 2 An embodiment of the second aspect of the present invention provides a door opening partition warning system, as Figure 3As shown in the figure, it includes a detector 11, a body control unit 12, a cockpit control unit 13, and a driving assistance control unit 14. Among them, the detector 11 is used to detect the position and motion state of the traffic participant 2 behind the vehicle 1 in real time. The driving assistance control unit 14 is used to calculate the time to collision (TTC) and position P when the traffic participant 2 reaches a specific area T of the vehicle 1, determine the respective risk levels of each door of the vehicle 1 during the opening process, and determine the respective warning levels of each door of the vehicle 1 during the opening process. The body control unit 12 is used to obtain the action status information of the master door lock and slave door locks of the vehicle 1. The cockpit control unit 13 is used to execute the warning information corresponding to the warning level. Moreover, the detector 11, the body control unit 12, the cockpit control unit 13, and the driving assistance control unit 14 are communicatively connected, enabling the above-mentioned door opening partition warning system to provide intuitive and clear warning information for the driver and passengers, realizing the targeted and directional warning function, and effectively ensuring the safety of the driver and passengers inside the vehicle 1 and the traffic participant 2 behind the vehicle 1.

[0057] Specifically, the detector 11 mentioned here can be a millimeter-wave radar for detecting the distance and speed of surrounding objects, especially the objects around the side and rear of the vehicle 1. The body control unit 12 is an electronic control module in the vehicle used to control various vehicle functions. It is used to receive signals from various switches on the vehicle and other control modules (such as the driving assistance control unit 14), and then execute corresponding operations according to predetermined programs and strategies, thereby realizing the comprehensive management and control of the vehicle body functions, such as the control of the lighting system and the door and window system. The cockpit control unit 13 is a highly integrated system control module integrating a variety of IT and artificial intelligence technologies. It receives signals from devices such as the driving assistance control unit 14 inside the vehicle, quickly analyzes and processes these signals, and then makes intelligent decisions based on the perceived data and preset algorithm models, and controls various functions inside the cockpit (such as in-vehicle speakers). The driving assistance unit 14 is an electronic control module integrating a variety of driving assistance functions, mainly including a processor, a memory, and input / output interfaces, etc. Among them, the processor is responsible for processing the received signals and data, the memory is used to store control strategies and algorithms, and the input / output interfaces are responsible for communicating and exchanging data with other vehicle electronic control modules. The driving assistance unit 14 receives signals from devices such as the detector 11 (such as radar, camera), etc., and monitors and judges the vehicle in real time, aiming to improve driving safety and comfort.

[0058] Embodiment III An embodiment of the third aspect of the present invention provides a vehicle, which includes the door opening partition warning system described in the second embodiment above, making the above vehicle have a high active safety performance. It should be noted that the vehicles mentioned here include but are not limited to traditional fuel vehicles and new energy vehicles, etc.

[0059] As described above, it is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the appended claims.

Claims

1. A method for warning of door opening partition, characterized in that, It includes the following steps: Detect the position and motion state of traffic participants behind the vehicle in real time; According to the position and motion state of the traffic participants, calculate the position and time when the traffic participants reach a specific area of the vehicle; According to the position and time when the traffic participants reach a specific area of the vehicle, determine the respective risk levels of each door of the vehicle during the opening process; Obtain the action state information of the central door lock and the individual door locks of the vehicle; According to the respective risk levels of each door of the vehicle during the opening process, and the action state information of the central door lock and the individual door locks of the vehicle, determine the respective warning levels of each door of the vehicle during the opening process; According to the warning level, during the opening process of the vehicle door, execute the warning information corresponding to the warning level.

2. The door opening partition warning method according to claim 1, characterized in that The motion state of the traffic participants includes speed and direction.

3. The door opening partition warning method according to claim 1, wherein, The specific area of the vehicle extends outward along the width direction of the vehicle from the starting position of the vehicle.

4. The door opening partition warning method according to claim 1, characterized in that, The length dimension of the specific area of the vehicle is user-defined.

5. The door opening area warning method according to claim 1, wherein When the position when the traffic participants reach the specific area of the vehicle is within the specific area of the vehicle, and the time when the traffic participants reach the specific area of the vehicle is less than or equal to a preset threshold, the risk level is a high risk; When the position when the traffic participants reach the specific area of the vehicle is outside the specific area of the vehicle, or the time when the traffic participants reach the specific area of the vehicle is greater than the preset threshold, the risk level is a low risk.

6. The door opening area warning method according to claim 5, wherein, When the risk level is a high risk, the action state information of the central door lock of the vehicle is unlocked, and the action state information of the individual door locks of the vehicle is unlocked, the warning level is a third-level warning; When the risk level is a high risk, the action state information of the central door lock of the vehicle is unlocked, and the action state information of the individual door locks of the vehicle is locked, the warning level is a second-level warning; When the risk level is a low risk, and the action state information of the central door lock of the vehicle is unlocked, the warning level is a first-level warning.

7. The door opening partition warning method according to claim 1, wherein The warning information includes turning on the ambient lights and the rearview mirror lights corresponding to the vehicle door, and playing a warning prompt to represent the warning level of the vehicle door.

8. The door opening partition warning method according to claim 7, characterized in that, The ambient lights and the rearview mirror lights can emit light beams of different indication colors, and the warning prompts include "Please pay attention to safety on the side of the car", "Be careful of obstacles on the side of the car", and "Danger, do not open the door".

9. A door opening partition warning system, characterized in that It includes a detector, a body control unit, a cockpit control unit, and a driving assistance control unit. Among them, the detector is used to detect the position and motion state of traffic participants behind the vehicle in real time. The driving assistance control unit is used to calculate the position and time when the traffic participants reach a specific area of the vehicle, determine the respective risk levels of each door of the vehicle during the opening process, and determine the respective warning levels of each door of the vehicle during the opening process. The body control unit is used to obtain the action state information of the master vehicle door lock and the slave vehicle door locks. The cockpit control unit is used to execute the warning information corresponding to the warning level.

10. A vehicle, characterized in that, It includes the door opening partition warning system as described in claim 9.

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