Vehicle back door intelligent closing method and system and vehicle

Abstract

The invention relates to the technical field of vehicle intellectualization, and discloses a vehicle back door intelligent closing method and system and a vehicle. The method comprises the steps that user information is collected in real time, and the target height of a back door matched with a user is obtained through analysis according to the user information; the vehicle back door is adjusted to the target height of the back door, so that a back door switch button is located in a preset user touch range; and when the user presses the back door switch button, the back door of the vehicle is closed after the early warning prompt is given. The height of the vehicle back door can be adjusted by detecting the height of a user, and the user can close the back door conveniently.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle intelligence, and in particular to a vehicle back door intelligent closing method, system and vehicle. BACKGROUND

[0002] In today's continuous development of automobile intelligence, the application scenarios of intelligent vehicles are becoming more and more extensive, from automatic driving to remote vehicle preparation, the intelligent design of vehicles covers more and more user vehicle scenarios, making the life of users more and more convenient, and greatly improving the user experience.

[0003] Electric back doors have been widely equipped in SUV models, which are convenient to use and open and close, and some vehicles are provided with a back door opening height memory function to solve the problem of difficulty in closing for users with small stature due to the opening height of the back door being too high, but there are still the following problems: (1) The use of the back door is often limited to one person, the driver and even the non-driver, who all have the need to open the back door, and the height memory function of the back door cannot completely solve this use pain point; (2) The ordinary electric back door has no environmental safety detection function when closing, which has safety hazards.

[0004] Therefore, there is an urgent need for a vehicle back door closing method that can adapt to different heights of intelligence to facilitate the closing of the vehicle back door. SUMMARY

[0005] The present application aims to provide a vehicle back door intelligent closing method, system and vehicle, which can adjust the height of the vehicle back door by detecting the height of the user, and facilitate the closing of the back door by the user.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: In a first aspect, the present application provides a vehicle back door intelligent closing method, which comprises: real-time collection of user information, and analysis of the back door target height of the matching user according to the user information; adjusting the vehicle back door to the back door target height, so that the back door opening and closing button is located within the preset user touch range; When the user presses the back door opening and closing button, the closing of the vehicle back door is prompted by a pre-warning.

[0007] Further, real-time collection of user information, and analysis of the back door target height of the matching user according to the user information, comprises: The rear door controller sends a collection instruction to the total collection device, the total collection device collects user information of a person located at the rear of the vehicle in real time after receiving the collection instruction and sends the user information to the data analysis module, and the data analysis module analyzes the received user information to obtain a target height of the rear door of the matching user. The user information includes a user intended action, a user height, and a vertical distance from the top of the user's head to the lower part of the rear door of the vehicle.

[0008] Further, the total collection device collects user information of a person located at the rear of the vehicle in real time after receiving the collection instruction and sends the user information to the data analysis module, and the data analysis module analyzes the received user information to obtain a target height of the rear door of the matching user, including: The total collection device includes an image collection device and a distance sensor, both of which are arranged at the lower part of the rear door of the vehicle. The image collection device collects a user intended action of a person located at the rear of the vehicle in real time according to the received collection instruction, and detects whether the user has a rear door closing intended action. When the image collection device detects that a user has a rear door closing intended action, the distance sensor collects the height of the user and the vertical distance from the top of the user's head to the lower part of the rear door of the vehicle and sends the collected information to the data analysis module. Based on the user height and the vertical distance from the top of the user's head to the lower part of the rear door of the vehicle, the data analysis module analyzes and determines a target height of the rear door suitable for the user. The rear door closing intended action includes a hand upward stretching action in which the top end of the user's hand is higher than the top of the user's head by no less than a first predetermined distance.

[0009] Further, adjusting the rear door of the vehicle to the target height of the rear door so that the rear door opening and closing button is located within a preset user touch range, including: After the data analysis module analyzes and obtains the target height of the rear door of the matching user, the data analysis module sends an adjustment instruction to the rear door controller based on the target height of the rear door. The rear door controller drives the rear door motor to adjust the height of the rear door of the vehicle to the target height of the rear door according to the received adjustment instruction, so that the rear door opening and closing button is located within a preset user touch range. The target height of the rear door = the user height + a second predetermined distance.

[0010] Further, when the user presses the rear door opening and closing button, the closing of the rear door of the vehicle is prompted through a pre-warning, including: When the user presses the back door switch button, the back door controller sends an environment confirmation instruction to the total acquisition device; the total acquisition device collects the environment information below the back door according to the environment confirmation instruction and confirms that there is no one and no interference below the back door, and then feeds back an environment safety signal to the data analysis module; when the user presses the back door switch button, the early warning device arranged at the bottom of the back door sends an early warning signal; The data analysis module receives the environment safety signal and sends a feedback signal of environment safety to the back door controller, and the back door controller receives the feedback signal of environment safety and sends a back door closing instruction to the back door motor, and the back door motor receives the back door closing instruction, delays for a predetermined time and then closes the back door of the vehicle; The early warning device comprises a buzzer.

[0011] Further, the method further comprises triggering a back door opening instruction to control the back door of the vehicle to be completely opened, comprising: The back door controller receives the back door opening instruction and drives the back door motor to open the back door through a plurality of triggering modes; Before the back door motor controls the back door to be opened, the early warning device arranged at the bottom of the back door gives a warning to remind the user that the back door will be opened, and after the warning is completed, the back door motor controls the back door to be completely opened; The total acquisition device collects the user information of the person located at the back of the vehicle in real time when the back door controller receives the back door opening instruction; The plurality of triggering modes comprise a remote key, a back door switch button and voice control.

[0012] In a second aspect, the embodiment of the present application provides a vehicle back door intelligent closing system, which comprises: An acquisition matching unit is configured to collect user information in real time and analyze the back door target height of a matched user according to the user information; A height adjusting unit is configured to adjust the back door of the vehicle to the back door target height so that the back door switch button is located within a preset user touch range; A warning closing unit is configured to give a warning to prompt the closing of the back door of the vehicle when the user presses the back door switch button.

[0013] Further, the acquisition matching unit comprises a total acquisition device and a data analysis module; The total acquisition device is configured to receive an acquisition instruction sent by the back door controller and collect user information of a person located at the back of the vehicle according to the acquisition instruction and send the user information to the data analysis module; The data analysis module is configured to receive user information sent by the total collection device and analyze the received user information to obtain a target height of a back door of a matching user. Among them, The user information includes a user intended action, a user height, and a vertical distance from a head of the user to a lower part of the back door of the vehicle; and the total collection device includes an image collection device and a distance sensor, both of which are arranged at the lower part of the back door of the vehicle. The image collection device is configured to collect a user intended action of a person located at a rear part of the vehicle in real time and detect whether the user has a back door closing intended action; wherein the back door closing intended action includes a hand upward stretching action in which a top end of a hand of the user is higher than a head of the user by a first predetermined distance. The distance sensor is configured to collect a height of a user and a vertical distance from a head of the user to the lower part of the back door of the vehicle when the image collection device detects that the user has the back door closing intended action and send the collected height and vertical distance to the data analysis module.

[0014] Further, the height adjustment unit includes a back door controller and a back door motor. The data analysis module is further configured to send an adjustment instruction to the back door controller based on the target height of the back door. The back door controller is configured to receive the adjustment instruction sent by the data analysis module and drive the back door motor to adjust the height of the back door of the vehicle according to the adjustment instruction. The back door motor is configured to adjust the height of the back door of the vehicle to the target height of the back door so that a back door opening and closing button is located within a preset user touch range. Among them, The early warning closing unit includes a warning device. The back door controller module is further configured to send an environment confirmation instruction to the total collection device when a user presses the back door opening and closing button, and send a back door closing instruction to the back door motor after receiving an environment safety feedback signal sent by the total collection device. The total collection device is further configured to collect environment information below the back door according to the environment confirmation instruction and confirm that there is no one and no interference below the back door, and then send an environment safety signal to the data analysis module. The warning device is configured to send a warning signal when a user presses the back door opening and closing button; wherein the warning device includes a buzzer. The data analysis module is further configured to send an environment safety feedback signal to the back door controller after receiving the environment safety signal sent by the total collection device. The back door motor is further configured to delay for a predetermined time and close the back door of the vehicle after receiving the back door closing instruction sent by the back door controller.

[0015] In a third aspect, the embodiment of the present application further provides a vehicle comprising the vehicle back door intelligent closing system.

[0016] The present application has the following technical effects and advantages: the present application adjusts the specific height of the back door according to the detected height of the user, facilitates the user to touch the physical switch of the back door, has the environmental safety detection and early warning function, enables the user to close the back door on the premise of ensuring the environmental safety, improves the vehicle experience of the driver and passenger, and solves the use pain points of different height users when closing the back door.

[0017] Other features and advantages of the present application will be described in the following description, and some will become apparent from the description, or will be understood from the practice of the present application. The purposes and other advantages of the present application can be achieved and obtained by the structures indicated in the specification, claims and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 A flow chart of the vehicle back door intelligent closing method according to an embodiment of the present application is shown in the figure. Figure 2 A detailed flow chart of the vehicle back door intelligent closing method according to an embodiment of the present application is shown in the figure. Figure 3 A structure schematic diagram of the vehicle back door intelligent closing system according to an embodiment of the present application is shown in the figure. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0021] To solve the problems of the prior art, the embodiment of the present application discloses a vehicle back door intelligent closing method, as shown in Figure 1 and Figure 2 The method comprises the following contents: Step S1: real-time collection of user information, and obtaining the target height of the back door of the matched user according to the user information analysis; Step S2: Adjust the vehicle back door to the back door target height, so as to facilitate the user to press the back door switch button; make the back door switch button in the preset user touch range; Step S3: When the user presses the back door switch button, the closing of the vehicle back door is prompted by pre-warning.

[0022] In some specific embodiments, before step S1, the back door opening instruction is triggered to control the vehicle back door to fully open, including the following contents: When the user triggers the back door opening instruction through multiple triggering methods, the back door controller receives the back door opening instruction and drives the back door motor to execute the opening of the vehicle back door. Among them, the multiple triggering methods include remote key, back door switch button, voice control, and vehicle central control screen, etc.

[0023] Before the back door motor controls the back door to open, the pre-warning device at the bottom of the back door gives a warning (such as the buzzer ringing for 3 seconds) to remind the user that the back door will be opened. After the warning is completed, the back door motor starts to work to control the back door to fully open (i.e. the back door is raised to 100% height).

[0024] In some specific embodiments, step S1: real-time collection of user information, and obtaining the back door target height of the matching user according to the user information analysis, including the following contents: When the back door controller receives the back door opening instruction or the back door is in an open state, the back door controller sends a collection instruction to the total collection device; the total collection device collects user information of the person located at the rear of the vehicle in real time according to the collection instruction and sends it to the data analysis module, and the data analysis module analyzes the received user information to obtain the back door target height of the matching user; Among them, the user information includes user intention action, user height and user head distance from the lower part of the vehicle back door; the total collection device includes an image collection device and a distance sensor, which are both arranged at the lower part of the vehicle back door; the image collection device includes but is not limited to a camera, and the distance sensor includes but is not limited to an ultrasonic radar.

[0025] For example, when the tailgate controller receives a tailgate opening command, it sends acquisition commands to a camera and an ultrasonic radar located at the bottom of the tailgate. The camera captures the user's intention actions in real time based on the received acquisition commands and detects whether the user intends to close the tailgate. When the image acquisition device detects that a user intends to close the tailgate, the ultrasonic radar quickly acquires the user's height data and the vertical distance from the top of the user's head to the bottom of the tailgate and sends it to the data analysis module. Based on the user's height and the vertical distance from the top of the user's head to the bottom of the tailgate, the data analysis module analyzes and determines the target tailgate height suitable for the user.

[0026] In this invention, the user's intention to close the tailgate is determined by detecting whether the user reaches up to press the tailgate switch button located at the bottom of the tailgate. Therefore, the intention to close the tailgate is defined as an upward reaching motion in which the top of the user's hand is at least a first predetermined distance (e.g., 100mm) above the top of their head.

[0027] It should be noted that if there is only one user at the rear of the vehicle with the intention to close the tailgate (or if there is only one person at the rear of the vehicle), the distance sensor only needs to collect the vertical distance from the top of that user's head to the bottom of the tailgate and send it to the data analysis module; if there are multiple people at the rear of the vehicle with the intention to close the tailgate, the distance sensor collects the distance from the user with the shortest vertical distance to the bottom of the tailgate and sends it to the data analysis module.

[0028] In some specific embodiments, step S2: adjusting the vehicle's tailgate to the target height to facilitate the user pressing the tailgate switch button; ensuring the tailgate switch button is within a preset user touch range; including the following: After the data analysis module analyzes the user's height and the vertical distance from the top of the user's head to the bottom of the vehicle's tailgate to obtain the target height of the tailgate matching the user, the data analysis module sends an adjustment command to the tailgate controller based on the target tailgate height. The tailgate controller drives the tailgate motor to adjust the height of the vehicle's tailgate to the target tailgate height, so that the tailgate switch button is located within the preset user touch range, making it convenient for the user to press the tailgate switch button. The target height of the rear door is equal to the user's height plus a second predetermined distance (e.g., 10 centimeters).

[0029] In some specific embodiments, step S3: When the user presses the tailgate switch button, the vehicle tailgate is closed after a warning prompt, including the following: When the user presses the back door switch button or the user triggers the back door closing instruction, the back door controller sends an environment confirmation instruction to the camera in the total acquisition device; the camera collects the environment information below the back door according to the environment confirmation instruction and confirms that there is no one and no interference below the back door, and then feeds back an environment safety signal to the data analysis module; At the same time when the user presses the back door switch button or the user triggers the back door closing instruction, the early warning device arranged at the bottom of the back door sends a warning signal (i.e. the buzzer rings for 3 seconds) to remind the surrounding personnel that the back door is about to be closed; When the data analysis module receives the received environment safety signal and feeds back to the back door controller, i.e. sends an environment safety feedback signal to the back door controller; after the back door controller receives the feedback signal of the environment safety sent by the data analysis module, the back door controller sends a back door closing instruction to the back door motor; after the back door motor receives the back door closing instruction, it delays for a predetermined time (for example, 3 seconds) and closes the vehicle back door.

[0030] In this embodiment, the back door closing instruction can still be triggered by various triggering modes, and the mode of triggering the back door closing instruction is basically the same as that of triggering the back door opening instruction, i.e. the back door closing instruction can be triggered by the remote key, the back door switch button, voice control, and the vehicle central control screen.

[0031] In some specific embodiments, if the image acquisition device and the distance sensor in the present application fail, the user can press the back door switch button to realize the opening and closing of the back door.

[0032] In some specific embodiments, the method of the present application can be used in cooperation with the voice control of the vehicle and the height memory function of the vehicle back door. The method of the present application is only applicable to electrically opening and closing the back door of the vehicle, and the back door of the vehicle has an anti-pinch function when it is closed.

[0033] In some specific embodiments, if the function of opening or closing the back door of the vehicle fails, the vehicle central control large screen has a state reminder in a prominent position, and the user can press the back door switch button to manually realize the opening and closing of the back door, which is easy to operate.

[0034] The complete process of the vehicle back door switch is as follows: When the user triggers the vehicle back door opening instruction, the early warning device gives a warning to remind the user that the vehicle back door is about to be opened, and the back door controller drives the back door motor to execute the opening of the vehicle back door according to the received back door opening instruction, and the vehicle back door is automatically opened to 100% height by the driving of the back door motor; The rear door controller sends a collection instruction to the camera and ultrasonic radar arranged at the lower part of the rear door when the rear door is opened, so that the camera collects the user's intended action in real time and the ultrasonic radar collects the user's height and the vertical distance from the user's head to the lower part of the rear door; when the camera detects that a user has a rear door closing intention, the ultrasonic radar quickly collects the user's height data and the vertical distance from the user's head to the lower part of the rear door and sends them to the data analysis module; The data analysis module obtains the target height of the rear door suitable for the user by analysis, and sends an adjustment instruction to the rear door controller based on the target height of the rear door, so that the rear door controller drives the rear door motor to adjust the height of the rear door to the target height of the rear door according to the received adjustment instruction, so that the rear door opening and closing button is located in the preset user touch range, and the user can press the rear door opening and closing button to close the rear door of the vehicle.

[0035] Based on the same inventive concept, the embodiment of the present application discloses a kind of vehicle rear door intelligent closing system, as Figure 3 As shown in the figure, the system includes collection matching unit, height adjustment unit and early warning closing unit; Collection matching unit is used to collect user information in real time, and the target height of the rear door of the matching user is obtained by analyzing the user information; Height adjustment unit is used to adjust the rear door of the vehicle to the target height of the rear door, so that the rear door opening and closing button is located in the preset user touch range; Early warning closing unit is used to close the rear door of the vehicle by early warning prompt when the user presses the rear door opening and closing button.

[0036] In some specific embodiments, the collection matching unit includes total collection device and data analysis module; The total collection device is used to receive the collection instruction sent by the rear door controller, and collect the user information of the person located at the rear of the vehicle in real time according to the collection instruction and send it to the data analysis module; The data analysis module is used to receive the user information sent by the total collection device, and analyze the received user information to obtain the target height of the rear door of the matching user.

[0037] Among them, the user information includes user intention, user height and vertical distance from the user's head to the lower part of the rear door of the vehicle;The total collection device includes image collection device and distance sensor arranged at the lower part of the rear door of the vehicle; The image acquisition device is used to acquire the intentional actions of a person located at the rear of the vehicle in real time and detect whether the user has the intention to close the tailgate; wherein, the intention to close the tailgate includes: the user's hand reaching upward with the top of the hand at a height not less than a first predetermined distance above the head; The distance sensor is used to collect the user's height and vertical distance from the bottom of the vehicle's tailgate when the image acquisition device detects that a user intends to close the tailgate, and then send the data to the data analysis module.

[0038] In some specific embodiments, the height adjustment unit includes a tailgate controller and a tailgate motor; The data analysis module is also used to send adjustment commands to the tailgate controller based on the target height of the tailgate; The tailgate controller is used to receive adjustment commands sent by the data analysis module and drive the tailgate motor to adjust the height of the vehicle tailgate according to the adjustment commands. The tailgate motor is used to adjust the height of the vehicle's tailgate to the target height, so that the tailgate switch button is within the preset user touch range.

[0039] In some specific embodiments, the warning shutdown unit includes a warning device; The tailgate controller is also used to send an environmental confirmation command to the main data acquisition device when the user presses the tailgate switch button; and to send a tailgate closing command to the tailgate motor after receiving the environmental safety feedback signal sent by the main data acquisition device. The main data acquisition device is also used to receive the environmental confirmation command sent by the rear door controller, and collect the environmental information below the rear door according to the environmental confirmation command. After confirming that there is no one or no interference below the rear door, it sends an environmental safety signal back to the data analysis module. The warning device is used to issue a warning signal when the user presses the tailgate switch button to remind people in the vicinity that the tailgate is about to close; wherein, the warning device includes a buzzer; The data analysis module is also used to send an environmental safety feedback signal to the rear door controller after receiving the environmental safety signal sent by the main acquisition device. The tailgate motor is also used to receive a tailgate closing command sent by the tailgate controller, delay for a predetermined time (e.g., delay for 3 seconds) and then close the vehicle tailgate.

[0040] Regarding the system in the above embodiments, the specific manner in which each unit module performs operations has been described in detail in the embodiments related to the method, and will not be elaborated here.

[0041] Based on the same inventive concept, the embodiment of the present application also provides a vehicle comprising the vehicle back door intelligent closing system.

[0042] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for the purpose of limiting the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A method for intelligent closing of a vehicle tailgate, characterized in that, The method comprises: Real-time collection of user information and obtaining a target height of a back door of a vehicle according to the user information; Adjusting the back door of the vehicle to the target height of the back door so that a back door opening and closing button is located within a preset user touch range; When the user presses the back door opening and closing button, the closing of the back door of the vehicle is carried out after a pre-warning prompt.

2. The method of claim 1, wherein, Real-time collection of user information and obtaining a target height of a back door of a vehicle according to the user information, comprising: The back door controller sends a collection instruction to a total collection device, the total collection device collects user information of a person located at the back of the vehicle in real time after receiving the collection instruction and sends the user information to a data analysis module, and the data analysis module analyzes the received user information to obtain the target height of the back door of the vehicle that matches the user. The user information comprises a user intended action, a user height and a vertical distance from the top of the user's head to the lower part of the back door of the vehicle.

3. The method of claim 2, wherein, The total collection device collects user information of a person located at the back of the vehicle in real time after receiving the collection instruction and sends the user information to a data analysis module, and the data analysis module analyzes the received user information to obtain the target height of the back door of the vehicle that matches the user, comprising: The total collection device comprises an image collection device and a distance sensor, both of which are arranged at the lower part of the back door of the vehicle. The image collection device collects the user intended action of a person located at the back of the vehicle in real time according to the received collection instruction and detects whether the user has a back door closing intended action. When the image collection device detects that a user has a back door closing intended action, the distance sensor collects the height of the user and the vertical distance from the top of the user's head to the lower part of the back door of the vehicle and sends the collected information to the data analysis module. Based on the user height and the vertical distance from the top of the user's head to the lower part of the back door of the vehicle, the data analysis module analyzes and determines the target height of the back door of the vehicle that is suitable for the user. The back door closing intended action comprises an upward hand movement in which the top end of the user's hand is higher than the top of the user's head by no less than a first predetermined distance.

4. The intelligent closing method of a vehicle back door according to claim 2 or 3, characterized in that, Adjusting the back door of the vehicle to the target height of the back door so that a back door opening and closing button is located within a preset user touch range, comprising: After the data analysis module analyzes and obtains the target height of the back door of the vehicle that matches the user, the data analysis module sends an adjustment instruction based on the target height of the back door to the back door controller. The back door controller drives the back door motor to adjust the height of the back door of the vehicle to reach the target height of the back door according to the received adjustment instruction, so that the back door opening and closing button is located within the preset user touch range. The target height of the back door = the user height + a second predetermined distance.

5. The method of claim 2, wherein, When the user presses the back door opening and closing button, the closing of the back door of the vehicle is carried out after a pre-warning prompt, comprising: When the user presses the back door opening and closing button, the back door controller sends an environment confirmation instruction to the total collection device; the total collection device collects environment information below the back door according to the environment confirmation instruction and confirms that there is no one and no interference below the back door, and then feeds back an environment safety signal to the data analysis module; at the same time that the user presses the back door opening and closing button, a pre-warning device arranged at the bottom of the back door sends a pre-warning signal. The data analysis module receives the environment safety signal and sends a feedback signal of the environment safety to the back door controller, the back door controller receives the feedback information of the environment safety and sends a back door closing instruction to the back door motor, and the back door motor receives the back door closing instruction, delays for a predetermined time, and closes the back door of the vehicle. The pre-warning device includes a buzzer.

6. The method of claim 2, wherein, The method further includes triggering a back door opening instruction to control the back door of the vehicle to be fully opened, including: The back door opening instruction is triggered by multiple triggering modes, the back door controller receives the back door opening instruction and drives the back door motor to open the back door; Before the back door motor controls the back door to be opened, a pre-warning device located at the bottom of the back door warns the user that the back door is about to be opened, and after the warning is completed, the back door motor controls the back door to be fully opened; The total collection device collects user information of a person located at the back of the vehicle in real time while the back door controller receives the back door opening instruction; The multiple triggering modes include a remote key, a back door switch button, and voice control.

7. A smart closing system for a vehicle tailgate, characterized in that The system includes: A collection matching unit is configured to collect user information in real time and analyze the back door target height of a matching user according to the user information; A height adjustment unit is configured to adjust the back door of the vehicle to the back door target height, so that the back door switch button is located within a preset user touch range; A pre-warning closing unit is configured to warn the user to close the back door of the vehicle through pre-warning when the user presses the back door switch button.

8. The intelligent back door closing system of the vehicle according to claim 7, characterized in that: The collection matching unit includes a total collection device and a data analysis module; The total collection device is configured to receive a collection instruction sent by the back door controller, collect user information of a person located at the back of the vehicle according to the collection instruction, and send the user information to the data analysis module; The data analysis module is configured to receive the user information sent by the total collection device, analyze the received user information, and obtain the back door target height of a matching user; The user information includes user intention action, user height, and vertical distance from the top of the user's head to the lower part of the back door of the vehicle; and the total collection device includes an image collection device and a distance sensor, both of which are arranged at the lower part of the back door of the vehicle. The image collection device is configured to collect user intention action of a person located at the back of the vehicle in real time, and detect whether the user has a back door closing intention action; wherein the back door closing intention action includes an upward hand action in which the top end of the user's hand is higher than the top of the user's head by not less than a first predetermined distance. The distance sensor is configured to collect the height of the user and the vertical distance from the top of the user's head to the lower part of the back door of the vehicle when the image collection device detects that a certain user has a back door closing intention action, and send the height and the vertical distance to the data analysis module.

9. The intelligent back door closing system of the vehicle according to claim 8, characterized in that: The height adjustment unit includes a back door controller and a back door motor; The data analysis module is further configured to send an adjustment instruction to the back door controller based on the back door target height. ​ The rear door controller is configured to receive the adjustment instruction sent by the data analysis module and drive the rear door motor to adjust the height of the rear door of the vehicle according to the adjustment instruction. The rear door motor is configured to adjust the height of the rear door of the vehicle to the target height of the rear door, so that the rear door opening and closing button is located within the preset user touch range. The rear door controller module is further configured to send an environment confirmation instruction to the total collection device when the user presses the rear door opening and closing button, and send a rear door closing instruction to the rear door motor after receiving the environment safety feedback signal sent by the total collection device. The total collection device is further configured to collect the environment information below the rear door and confirm that there is no one and no interference below the rear door according to the environment confirmation instruction, and send the environment safety signal to the data analysis module. The warning device is configured to send a warning signal when the user presses the rear door opening and closing button. The data analysis module is further configured to send an environment safety feedback signal to the rear door controller after receiving the environment safety signal sent by the total collection device. The rear door motor is further configured to delay for a predetermined time and close the rear door of the vehicle after receiving the rear door closing instruction sent by the rear door controller. The vehicle rear door intelligent closing system comprises the vehicle rear door intelligent closing system according to any one of claims 7-9. ​ 10. A vehicle characterized by comprising: ​

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