Adjusting method and control equipment for small table board of automobile seat backrest and automobile

Abstract

The invention discloses an adjusting method of an automobile seat backrest small table board, control equipment and an automobile, and relates to the technical field of automobile design, the adjusting method of the automobile seat backrest small table board comprises the steps that first coordinate information of a passenger heel point, second coordinate information of a passenger H point and third coordinate information of a center point of the opened small table board are obtained; calculating actual position information of the center point of the small table board and the relative passenger H point based on the third coordinate information of the center point of the small table board and the second coordinate information of the passenger H point, and determining target position information of the center point of the small table board relative to the passenger H point according to a preset association relationship between the first coordinate information and the second coordinate information; and determining an adjustment scheme of the small table plate according to the actual position information and the target position information. By the adoption of the method, after the passenger in the back row sits, the small table board can be controlled to conduct self-adaptive adjustment according to the position of the passenger, so that the small table board reaches the better position, and the riding experience of the passenger in the back row is improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile design, and in particular to an adjustment method for a small table board of an automobile seat backrest, a control device and an automobile. Background Art

[0002] With the development of smart cars, compared with traditional cars that are mainly used for driving and riding, smart cars have more attributes such as social interaction, entertainment, and office work, and rear passengers have also put forward higher requirements for the comfort and convenience of cars. In order to meet the needs of rear passengers, many current models have added a small flip table behind the front seat backrest. The small table can be used to watch movies with a tablet, work with a notebook, do homework with a workbook, and use food as a dining table. However, most of them can only be put down and put away, and the position of the small table is fixed, so the rear passengers may touch or cannot reach the small table, causing inconvenience in use. Summary of the invention

[0003] The main purpose of the present invention is to propose a method for adjusting a small table on a car seat back, a control device and a car, aiming to propose a method for adaptively adjusting the position of a small table on a front seat back according to the position of the rear passengers, so as to improve the comfort and convenience of the rear passengers.

[0004] To achieve the above object, the present invention provides a method for adjusting a small table board of a car seat backrest, and the method for adjusting a small table board of a car seat backrest comprises the following steps:

[0005] When a passenger is seated on the rear seat of the vehicle and the small table behind the front seat back is opened, obtaining first coordinate information of the passenger's heel point, second coordinate information of the passenger's H point, and third coordinate information of the center point of the opened small table;

[0006] Based on the third coordinate information of the center point of the small table and the second coordinate information of the occupant's H point, the actual position information of the center point of the small table relative to the occupant's H point is calculated, and at the same time, the target position information of the center point of the small table relative to the occupant's H point is determined according to the preset association relationship between the first coordinate information and the second coordinate information;

[0007] An adjustment plan for the small table top is determined according to the actual position information and the target position information.

[0008] In one embodiment, the target position information includes a target distance difference in a height direction and a target distance difference in a horizontal direction, and the actual position information includes an actual distance difference in a height direction and an actual distance difference in a horizontal direction.

[0009] In one embodiment, in the step of "calculating the actual position information of the center point of the small table relative to the occupant's H point based on the third coordinate information of the center point of the small table and the second coordinate information of the occupant's H point, and determining the target position information of the center point of the small table relative to the occupant's H point based on the association between the first coordinate information and the second coordinate information":

[0010] Based on the first coordinate information and the second coordinate information, determining a height difference between a heel point of the occupant and a H point of the occupant as a first height difference;

[0011] Based on the preset association between the first height difference and the target position information, a target distance difference in the height direction and a target distance difference in the horizontal direction of the center point of the small table relative to the occupant's H point are determined.

[0012] In one embodiment, the preset association relationship between the first height difference and the target position information includes:

[0013] L1=a1*H0 2 +b1*H0+c1

[0014] H1=a2*H0 2 +b2*H0+c2

[0015] Among them, H0 is the first height difference, H1 is the target distance difference in the height direction, L1 is the target distance difference in the horizontal direction, and a1, b1, c1, a2, b2, and c2 are all coefficients.

[0016] In one embodiment, the step of “determining an adjustment scheme of the small table according to the actual position information and the target position information” includes:

[0017] In the actual position information and the target position information, when the distance difference in the height direction and the distance difference in the horizontal direction are the same, the small table is controlled to maintain the current position.

[0018] In one embodiment, the step of “determining an adjustment scheme of the small table according to the actual position information and the target position information” includes:

[0019] When at least one of a distance difference in a height direction and a distance difference in a horizontal direction in the actual position information and the target position information is different, the small table is controlled to adjust its position.

[0020] In one embodiment, the step of “controlling the small table to adjust the position when at least one of the distance difference in the height direction and the distance difference in the horizontal direction in the actual position information and the target position information is different” includes:

[0021] When the actual distance difference in the height direction is greater than or less than the target distance difference in the height direction, the small table is adjusted to move downward or upward.

[0022] In one embodiment, the step of “controlling the small table to adjust the position when at least one of the distance difference in the height direction and the distance difference in the horizontal direction in the actual position information and the target position information is different” includes:

[0023] When the actual distance difference in the horizontal direction is greater than or less than the target distance difference in the horizontal direction, the small table is adjusted to move horizontally toward the occupant or away from the occupant.

[0024] The present invention also proposes a control device, which includes: a memory, a processor, and a car seat back table adjustment program stored in the memory and runnable on the processor, wherein the car seat back table adjustment program is configured to implement the steps of the car seat back table adjustment method as described above.

[0025] The present invention also provides a car, comprising:

[0026] The data acquisition device includes a floor mat sensor, a seat sensor, and a small table sensor, which are used to obtain first coordinate information of the occupant's heel point, second coordinate information of the occupant's H point, and third coordinate information of the center point of the opened small table, respectively;

[0027] A front seat assembly, including a seat back and a small table, wherein the small table is mounted on the seat back through an adjustment mechanism so as to be movable in a horizontal direction, a vertical direction, and to be able to swing in the vertical direction; and,

[0028] The control device as described above is electrically connected to the data acquisition device and the adjustment mechanism to control the operation of the adjustment mechanism according to the detection result of the data acquisition device.

[0029] In the technical solution of the present invention, the target position information of the center point of the small table relative to the occupant's point H is preset through the first coordinate information and the second coordinate information, and the target position information is self-adjusted under different occupant positions, so that when the occupant opens the small table on the back of the front seat and sits in different positions of the rear seat, the occupant can set appropriate target position information and adjust the actual position of the small table accordingly, thereby realizing intelligent adjustment of the small table of the front seat and improving the comfort and convenience of the rear occupants in using the small table. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0031] Figure 1 A schematic diagram of a partial structure of an embodiment of a vehicle provided in the present application;

[0032] Figure 2 for Figure 1 Schematic diagram of the coordinate system of the car;

[0033] Figure 3 for Figure 1 Schematic diagram of the relationship between the small table on the back of the front seat of the car and the position of the rear passengers;

[0034] Figure 4 A schematic diagram of a flow chart of an embodiment of a method for adjusting a small table on a car seat back provided in the present application;

[0035] Figure 5 for Figure 4 A flowchart of a method for adjusting a small table board on a car seat back;

[0036] Figure 6 Schematic diagram of the device structure of the hardware operating environment involved in the method for adjusting the small table on the back of a car seat in the embodiment of the present application.

[0037] Description of Figure Numbers:

[0038] 11. Control device; 12. Seat back; 13. Small table; 14. Height adjustment mechanism; 15. Horizontal adjustment mechanism; 16. Highest position; 17. Lowest position; 18. Position closest to rear passengers; 19. Position farthest from rear passengers; 21. Vehicle support;

[0039] a, Y reference plane; b, X reference plane; c, Z reference plane; d, passenger heel point; e, passenger H point; f, center point of small table.

[0040] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0041] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0042] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0043] With the development of smart cars, compared with traditional cars which are mainly used for driving and riding, smart cars now have multiple attributes such as social interaction, entertainment, and office work, and have gradually become the "third living space" in addition to living and working spaces.

[0044] The rear passengers also have higher demands for the comfort and convenience of the car. To meet the needs of the rear passengers, many current models have added a small flip table behind the front seat backrest, which can be used to place tablets for watching movies, notebooks for work, exercise books for doing homework, and food as a dining table. However, most of them can only be put down and put away, and the position is fixed, so the rear passengers may touch or cannot reach the small table, causing inconvenience.

[0045] Based on this, the present invention proposes a car, see Figure 1 The automobile includes a data acquisition device, a front seat assembly and a control device 11. The data acquisition device includes a floor mat sensor, a seat sensor and a small table sensor, which are respectively used to obtain the first coordinate information of the occupant's heel point, the second coordinate information of the occupant's H point and the third coordinate information of the center point of the opened small table; the front seat assembly includes a seat back 12 and a small table 13, and the small table 13 is installed on the seat back 12 through an adjustment mechanism so that it can move in the horizontal direction and the vertical direction, and can swing in the vertical direction; the control device 11 is electrically connected to the data acquisition device and the adjustment mechanism to control the adjustment mechanism to work according to the detection result of the data acquisition device.

[0046] Among them, after the rear passengers are seated, the small table 13 is rotated from the state of being in contact with the seat back 12 to the horizontal state. It should be noted that the horizontal state does not mean an absolute horizontal state. In some cases, the horizontal state also means that it will be tilted at some angle relative to the absolute horizontal to facilitate the use of the rear passengers. That is, when the small table 13 is opened to a suitable use angle, the floor mat sensor can obtain the position of the occupant's heel point and obtain the first coordinate information; the seat sensor can obtain the position of the occupant's H point and obtain the second coordinate information; the small table sensor can obtain the position of the center point of the small table 13 and obtain the third coordinate information; the data acquisition device sends the collected information to the control device 11, and the control device 11 receives the information sent by the data acquisition device, and after processing, controls the adjustment mechanism to adjust the position of the small table 13. The adjustment mechanism includes a height adjustment mechanism 14 and a horizontal adjustment mechanism 15 to adjust the position of the small table 13 to a position more suitable for the current occupant. The height adjustment mechanism 14 can adjust the small table 13 between a highest position 16 and a lowest position 17 , and the horizontal adjustment mechanism 15 can adjust the small table 13 between a position 18 closest to the rear seat passengers and a position 19 farthest from the rear seat passengers.

[0047] In order to more conveniently process the position information, a vehicle coordinate system can be established. Figure 2 , Figure 2 Schematic diagram of a vehicle coordinate system in an embodiment of the present application. The vehicle is placed on a vehicle support 21 .

[0048] Among them, the origin is the midpoint of the line connecting the left and right wheel centers of the front wheels;

[0049] Y reference plane a: longitudinal symmetry plane of the vehicle;

[0050] X reference plane b: a vertical plane passing through the origin and perpendicular to the Y reference plane a;

[0051] Z reference plane c: a horizontal plane passing through the origin and perpendicular to the Y reference plane a and the X reference plane b;

[0052] X-axis: With the origin as the reference point, the direction pointing to the front of the car is negative (-X), and the direction pointing to the rear of the car is positive (+X);

[0053] Y axis: With the origin as the reference point, pointing to the left side of the car is negative (-Y), and pointing to the right side of the car is positive (+Y);

[0054] Z axis: With the origin as the reference point, the direction pointing downwards is negative (-Z), and the direction pointing upwards is positive (+Z).

[0055] Based on the above coordinate system, the first coordinate information, the second coordinate information and the third coordinate information may be three different point coordinates respectively.

[0056] The present invention also provides a method for adjusting a small table board on a car seat backrest, referring to Figure 4 , Figure 4 The present invention is a flowchart of an embodiment of a method for adjusting a small table on a car seat backrest according to the present invention.

[0057] In this embodiment, the method for adjusting the small table of the car seat backrest includes steps S10 to S30:

[0058] Step S10, when a passenger is seated on the rear seat of the automobile and the small table behind the front seat is opened, obtaining first coordinate information of the passenger's heel point, second coordinate information of the passenger's H point, and third coordinate information of the center point of the opened small table;

[0059] It should be noted that the present application is not limited to obtaining the above coordinate information when the position of the rear seat occupant changes and the small table behind the front seat back is opened, but it can also be when the small table is opened and the occupant's position changes, obtaining the first coordinate information of the occupant's heel point, the second coordinate information of the occupant's H point and the third coordinate information of the center point of the opened small table, that is, when the occupant adjusts his position midway after sitting down, the position of the small table can also be adaptively adjusted.

[0060] Please note that Figure 3 , Figure 3 The diagram is a schematic diagram of the position relationship between the small table on the back of the front seat and the rear seat passengers. The passenger heel point d is the actual contact point between the passenger's heel and the carpet surface; the passenger H point e refers to the connection point between the passenger's body and thigh, that is, the hip point; the center point f of the small table can be set as needed. For example, when the small table is homogeneous and the shape of the storage surface is a central symmetrical figure, the center point of the small table can be its symmetry center. When the small table is inhomogeneous or the shape of the storage surface is irregular, the center of gravity of the small table can be selected as the center point of the small table. Of course, other methods for determining the center point of the small table can also be used, and the present invention is not limited here.

[0061] Step S20, calculating the actual position information of the center point of the small table relative to the occupant's H point based on the third coordinate information of the center point of the small table and the second coordinate information of the occupant's H point, and determining the target position information of the center point of the small table relative to the occupant's H point based on the preset association relationship between the first coordinate information and the second coordinate information;

[0062] It should be noted that when the position of the passenger changes, the first coordinate information and the second coordinate information will also change accordingly, so the target position information of the center point of the small table relative to the passenger's H point will also change, and because the second coordinate information changes, the actual position information of the center point of the small table relative to the passenger's H point will also change. In this way, the position of the small table can be adjusted intelligently, so that the small table can be in a state that is convenient for rear passengers to use for a long time.

[0063] Step S30, determining an adjustment plan for the small table according to the actual position information and the target position information.

[0064] It should be noted that after confirming the actual position information and the target position information, the small table is controlled to move from the actual position to the target position.

[0065] In the adjustment method of the small table on the car seat back provided by the present invention, the target position information of the center point of the small table relative to the occupant's point H is preset through the first coordinate information and the second coordinate information, and the target position information is self-adjusted under different occupant positions, so that when the occupant opens the small table on the front seat back and sits in different positions of the rear seat, the occupant can set appropriate target position information and adjust the actual position of the small table accordingly, thereby realizing intelligent adjustment of the small table on the front seat and improving the comfort and convenience of the rear occupants in using the small table.

[0066] Furthermore, the position information in the actual position information and the target position information includes the distance difference in the height direction and the distance difference in the horizontal direction. That is, the target position information includes the target distance difference in the height direction and the target distance difference in the horizontal direction, and the actual position information includes the actual distance difference in the height direction and the actual distance difference in the horizontal direction. Specifically, the distance difference in the height direction is the height distance (the distance in the Z-axis direction) between the center point of the small table and the H point of the occupant, and the distance difference in the horizontal direction is the horizontal distance between the center point of the small table and the H point of the occupant. Preferably, the distance difference in the horizontal direction is the distance between the center point of the small table and the H point of the occupant in the X-axis direction. The position of the small table is adjusted in both the height direction and the horizontal direction, and adjusted from the actual position to the target position, so that the small table can reach the position most suitable for the current seated occupant.

[0067] Furthermore, in step S20:

[0068] Based on the first coordinate information and the second coordinate information, determining a height difference between a heel point of the occupant and a H point of the occupant as a first height difference;

[0069] Based on the preset association between the first height difference and the target position information, a target distance difference in the height direction and a target distance difference in the horizontal direction of the center point of the small table relative to the occupant's H point are determined.

[0070] In this embodiment, the first height difference is used as a variable to determine the target distance difference in the height direction and the target distance difference in the horizontal direction of the center point of the small table relative to the H point of the occupant. The H point is the reference of the occupant's sitting posture, and the height difference between the occupant's heel point and the occupant's H point is used as the target position information associated variable, which can better reflect the real needs of the occupant to better improve the comfort of the occupant.

[0071] Furthermore, the preset association relationship between the first height difference and the target position information includes a preset association relationship between the target distance difference in the height direction and the first height difference and an association relationship between the target distance difference in the horizontal direction and the first height difference. The association relationship can be obtained by the following method:

[0072] The height difference H', horizontal distance difference L' and height difference H0 between the center point of the small table and the rear passenger's H point of various models are collected. The relative relationship between H' and H0, L' and H0 is analyzed by regression using statistical methods to obtain the relationship formula.

[0073] Set a series of H0, apply the above formula, calculate the corresponding H' and L' respectively, adjust the corresponding human posture, and use simulation software to perform human comfort simulation analysis;

[0074] Make a human-machine test bench, adjust the rear seats to the set H0, and then adjust the small table to the corresponding position according to the H' and L' calculated by the formula. Then organize different people to conduct real car evaluations, repeat the above steps, and collect evaluation information from different groups of people;

[0075] Combining simulation analysis and real vehicle evaluation, the relationship formulas between H' and H0, L' and H0 are modified to obtain the final relationship formula:

[0076] L'=a1*H0 2 +b1*H0+c1

[0077] H'=a2*H0 2 +b2*H0+c2

[0078] The above relationship formula is used to determine the preset association relationship between the first height difference and the target position information, and the relationship between the target distance difference H1 in the height direction and the first height difference H0 is obtained as follows:

[0079] H1=a2*H0 2 +b2*H0+c2

[0080] The relationship between the target distance difference L1 in the horizontal direction and the first height difference H0 is obtained as follows:

[0081] L1=a1*H0 2 +b1*H0+c1

[0082] It should be noted that a1, b1, c1, a2, b2, and c2 are coefficients of the relationship formula obtained by the above regression analysis, simulation analysis, and actual vehicle evaluation. For example, in one embodiment, a1 is 0.0028, b1 is -1.5528, c1 is 551, a2 is -0.0009, b2 is 0.2451, and c2 is 340.

[0083] By using the preset association between the above-mentioned first height difference and the target position information to determine the target distance difference in the height direction and the target distance difference in the horizontal direction of the center point of the small table relative to the passenger's H point, the comfort level of the rear passengers when using the small table can be further improved.

[0084] For further information, see Figure 5 , step S30 includes: in the actual position information and the target position information, when the distance difference in the height direction and the distance difference in the horizontal direction are the same, the small table is controlled to maintain the current position. That is, when the current position of the small table coincides with the preset position, the small table itself is in the best position, so the small table is controlled to maintain the current position. It should be noted that when the distance difference in the height direction and the distance difference in the horizontal direction are the same, it is not limited to being exactly the same. It can also be that the distance difference in the height direction in the actual position information and the distance difference in the height direction of the target position information are within a set smaller range, and the horizontal distance difference in the actual position information and the horizontal distance difference in the target position information are also within a set smaller range, the small table is controlled to maintain the current position.

[0085] Furthermore, step S30 further includes the following steps:

[0086] When at least one of the distance difference in the height direction and the distance difference in the horizontal direction is different between the actual position information and the target position information, the small table is controlled to adjust its position. It should be noted that when at least one of the distance difference in the height direction and the distance difference in the horizontal direction is different between the actual position information and the target position information, it means that the distance difference in the height direction in the actual position information is different from the distance difference in the height direction in the target position information and / or the distance difference in the horizontal direction in the actual position information is different from the distance difference in the horizontal direction in the target position information.

[0087] It should be noted that the step of determining whether the horizontal distance difference in the actual position information is the same as the horizontal distance difference in the target position information, and the step of determining whether the height distance difference in the actual position information is the same as the height distance difference in the target position information, can be performed simultaneously or one after the other.

[0088] Further, when the actual distance difference in the height direction is greater than or less than the target distance difference in the height direction, the small table is adjusted to move downward or upward. That is, when the actual distance difference in the height direction is greater than the target distance difference in the height direction, the small table is adjusted to move downward; when the actual distance difference in the height direction is less than the target distance difference in the height direction, the small table is adjusted to move upward to reach the optimal position.

[0089] Further, when the actual distance difference in the horizontal direction is greater than or less than the target distance difference in the horizontal direction, the small table is adjusted to move horizontally in a direction close to the occupant or in a direction away from the occupant. That is, when the actual distance difference in the horizontal direction is greater than the target distance difference in the horizontal direction, the small table is adjusted to move horizontally in a direction close to the occupant; when the actual distance difference in the horizontal direction is less than the target distance difference in the horizontal direction, the small table is adjusted to move horizontally in a direction away from the occupant to achieve the optimal position.

[0090] It should be noted that the target distance difference in the height direction may be a range, and the target distance difference in the horizontal direction may also be a range, and the present invention does not impose any limitation on this.

[0091] The present invention combines competitive product benchmarking, regression analysis, simulation analysis, and actual vehicle evaluation to derive the optimal formula for the relative relationship between the center point of the small table on the front seat back and the H point of the rear passenger. After the rear passengers are seated, the small table is controlled to perform adaptive adjustments front and back (horizontal direction) and up and down (height direction) according to the position of the passengers to achieve the optimal position. When the position of the rear passengers changes, the small table can also be controlled to perform adaptive adjustments based on the position information of the passengers. At the same time, users can choose to turn off the adaptive adjustment of the small table or turn on manual adjustment to meet the personalized needs of different users. The intelligence and technological sense of the car are enhanced, and the rear passengers can also get a better riding experience.

[0092] In addition, the control device provided in the present application includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the method for adjusting the small table on the back of a car seat in the above-mentioned embodiment.

[0093] Reference below Figure 6 , which shows a schematic diagram of the structure of a control device suitable for implementing an embodiment of the present application. The control device in the embodiment of the present application may include, but is not limited to, mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. Figure 6 The control device shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0094] like Figure 6As shown, the control device may include a processing device 1001 (e.g., a central processing unit, a graphics processor, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM: Read Only Memory) 1002 or a program loaded from a storage device 1003 to a random access memory (RAM: Random Access Memory) 1004. In RAM1004, various programs and data required for the operation of the control device are also stored. The processing device 1001, ROM1002, and RAM1004 are connected to each other through a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Generally, the following systems can be connected to the I / O interface 1006: an input device 1007 including, for example, a touch screen, a touch pad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; an output device 1008 including, for example, a liquid crystal display (LCD: Liquid Crystal Display), a speaker, a vibrator, etc.; a storage device 1003 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 1009. The communication device 1009 can allow the control device to communicate with other devices wirelessly or wired to exchange data. Although the control device with various systems is shown in the figure, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems can be implemented or have alternatively.

[0095] In particular, according to the embodiments disclosed in the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0096] The control device provided by the present application adopts the adjustment method of the small table board of the car seat backrest in the above embodiment. Compared with the prior art, the beneficial effects of the control device provided by the present application are the same as the beneficial effects of the adjustment method of the small table board of the car seat backrest provided by the above embodiment, and other technical features in the control device are the same as the features disclosed in the method of the previous embodiment, which will not be repeated here.

[0097] It should be understood that the various parts disclosed in this application can be implemented by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0098] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0099] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A method for adjusting a small table on a car seat back, characterized in that: The following steps are involved: When a passenger is seated on the rear seat of the vehicle and the small table behind the front seat back is opened, obtaining first coordinate information of the passenger's heel point, second coordinate information of the passenger's H point, and third coordinate information of the center point of the opened small table; Based on the third coordinate information of the center point of the small table and the second coordinate information of the occupant's H point, the actual position information of the center point of the small table relative to the occupant's H point is calculated, and at the same time, the target position information of the center point of the small table relative to the occupant's H point is determined according to the preset association relationship between the first coordinate information and the second coordinate information; An adjustment plan for the small table top is determined according to the actual position information and the target position information.

2. The method for adjusting a small table board of a car seat backrest as claimed in claim 1, characterized in that: The target position information includes a target distance difference in a height direction and a target distance difference in a horizontal direction, and the actual position information includes an actual distance difference in a height direction and an actual distance difference in a horizontal direction.

3. The method for adjusting a small table board of a car seat backrest as claimed in claim 2, characterized in that: In the step of "calculating the actual position information of the center point of the small table relative to the occupant's H point based on the third coordinate information of the center point of the small table and the second coordinate information of the occupant's H point, and determining the target position information of the center point of the small table relative to the occupant's H point based on the preset association relationship between the first coordinate information and the second coordinate information": Based on the first coordinate information and the second coordinate information, determining a height difference between a heel point of the occupant and a H point of the occupant as a first height difference; Based on the preset association between the first height difference and the target position information, a target distance difference in the height direction and a target distance difference in the horizontal direction of the center point of the small table relative to the occupant's H point are determined.

4. The method for adjusting a small table board of a car seat backrest as claimed in claim 3, characterized in that: The preset association relationship between the first height difference and the target position information includes: L1=a1*H0 2 +b1*H0+c1 <h2 style=";text-align:left;direction:ltr">H1 = a2*H0<h2 style=";text-align:left;direction:ltr"> 2 <h2 style=";text-align:left;direction:ltr"> +b2*H0+c2 Among them, H0 is the first height difference, H1 is the target distance difference in the height direction, L1 is the target distance difference in the horizontal direction, and a1, b1, c1, a2, b2, and c2 are all coefficients.

5. The method for adjusting a small table board of a car seat backrest as claimed in claim 2, characterized in that: The step of "determining an adjustment scheme for the small table according to the actual position information and the target position information" includes: In the actual position information and the target position information, when the distance difference in the height direction and the distance difference in the horizontal direction are the same, the small table is controlled to maintain the current position.

6. The method for adjusting a small table board of a car seat backrest as claimed in claim 2, characterized in that: The step of "determining an adjustment scheme for the small table according to the actual position information and the target position information" includes: When at least one of a distance difference in a height direction and a distance difference in a horizontal direction in the actual position information and the target position information is different, the small table is controlled to adjust its position.

7. The method for adjusting a small table on a car seat back as claimed in claim 6, characterized in that: The step of "controlling the small table to adjust the position when at least one of the distance difference in the height direction and the distance difference in the horizontal direction in the actual position information and the target position information is different" includes: When the actual distance difference in the height direction is greater than or less than the target distance difference in the height direction, the small table is adjusted to move downward or upward.

8. The method for adjusting a small table board of a car seat backrest as claimed in claim 6, characterized in that: The step of "controlling the small table to adjust the position when at least one of the distance difference in the height direction and the distance difference in the horizontal direction in the actual position information and the target position information is different" includes: When the actual distance difference in the horizontal direction is greater than or less than the target distance difference in the horizontal direction, the small table is adjusted to move horizontally toward the occupant or away from the occupant.

9. A control device, characterized in that: The control device includes: a memory, a processor, and a car seat back table adjustment program stored in the memory and executable on the processor, wherein the car seat back table adjustment program is configured to implement the steps of the car seat back table adjustment method as described in any one of claims 1 to 8.

10. An automobile, characterized in that: include: The data acquisition device includes a floor mat sensor, a seat sensor, and a small table sensor, which are used to obtain first coordinate information of the occupant's heel point, second coordinate information of the occupant's H point, and third coordinate information of the center point of the opened small table, respectively; A front seat assembly, including a seat back and a small table, wherein the small table is mounted on the seat back through an adjustment mechanism so as to be movable in a horizontal direction, a vertical direction, and to be able to swing in the vertical direction; and, The control device as claimed in claim 9, wherein the control device is electrically connected to the data acquisition device and the adjustment mechanism to control the operation of the adjustment mechanism according to the detection result of the data acquisition device.

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