Seat table board automatic control system and control method thereof

Abstract

The invention provides an automatic control system for a seat table board. The automatic control system comprises a seat backrest; the table board is rotationally connected to the seat backrest; the connecting rod mechanism is respectively connected with the seat backrest and the table plate; the actuator is arranged on the seat backrest or the table plate and is used for being in transmission connection with the table plate; the electronic control unit (ECU) is arranged on the seat backrest or the table board, and the ECU is used for receiving an operation instruction, generating a driving signal to control the actuator, receiving an operation position signal of the actuator, receiving a rotating speed signal or an operation current signal of the actuator and receiving a posture signal of the table board. And the intelligent degree is high. The invention further provides an automatic control method based on the seat table board automatic control system.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent seats, and more specifically, to an automatic control system for a seat table, and a control method based on the automatic control system for the seat table. Background Art

[0002] With the rapid development of the times, intelligent and electrified products have gradually penetrated into all aspects of people's lives and can be seen everywhere. Among them, the intelligentization of transportation tools has developed rapidly. In cars, high-speed trains, and airplanes, the demand for intelligent seats has received more and more attention.

[0003] The seat backs are usually equipped with tables for passengers to place cups, mobile phones or other items. Currently, most tables are opened or closed manually by passengers, which is inconvenient to use and does not meet the development needs of intelligence and electrification.

[0004] Currently, there are a small number of electrically driven seat table products, but they have shortcomings such as imperfect functions and unstable control, and their intelligence level still cannot meet the comprehensive needs of users. Summary of the invention

[0005] In view of the above, the present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a seat table automatic control system and a control method based on the seat table automatic control system. The electronic control unit (ECU) is used as the control center of the system to receive external operation instructions, the operating position signal of the actuator, the speed signal or the operating current signal of the actuator, the posture signal of the table, and generate a drive signal for the actuator, thereby realizing highly intelligent control of the seat table, and the overall structure is simple, which is suitable for application in large-scale industrial production.

[0006] To this end, in a first aspect, an embodiment of the present invention provides a seat table automatic control system, comprising:

[0007] Seat backs;

[0008] A table top, rotatably connected to the seat back;

[0009] A connecting rod mechanism, respectively connecting the seat back and the table top;

[0010] an actuator, disposed on the seat back or the table top, for transmission connection with the table top; and

[0011] An electronic control unit (ECU) is arranged on the seat back or the table top, and the ECU is used to receive operating instructions, generate a drive signal to control the actuator, receive an operating position signal of the actuator, receive a speed signal or an operating current signal of the actuator, and receive a posture signal of the table top.

[0012] Preferably, the ECU includes a gyroscope or an angle sensor for monitoring the posture signal of the table top.

[0013] Preferably, the ECU includes a rotation speed sensor for monitoring the rotation speed of the actuator; or,

[0014] The ECU includes a current sensor for monitoring the current signal returned by the actuator.

[0015] Preferably, it further comprises a sensing switch, which is arranged between the seat back and the table board, and is used to sense that the table board is closed relative to the seat back and generate a closing state signal, and the ECU is also used to receive the closing state signal and set the operating position signal to zero; and / or,

[0016] It also includes a trigger switch, which is arranged on the seat back and electrically connected to the ECU, and is used to receive a trigger action and generate the operation instruction.

[0017] Preferably, the ECU includes an alarm, which is arranged on the seat back or the table top and is electrically connected to the ECU, and is used to send out an alarm signal in an abnormal state.

[0018] Preferably, it further comprises a communication unit, which is arranged on the seat back or the table and is electrically connected to the ECU, and the ECU communicates with the outside through the communication unit; and / or,

[0019] It also includes a wireless charging unit and a charging indicator light, which are arranged on the table and electrically connected to the ECU; and / or,

[0020] It also includes an electrically heated cup holder, which is disposed on the table and electrically connected to the ECU; and / or,

[0021] It also includes an atmosphere light, which is arranged on the periphery of the table top and is electrically connected to the ECU.

[0022] In a second aspect, an embodiment of the present invention further provides a seat table automatic control method for controlling the seat table automatic control system according to the first aspect, the method comprising:

[0023] S10, the ECU receives an operation instruction, and generates a driving signal according to the operation instruction;

[0024] S20, the actuator moves according to the driving signal to drive the table top to rotate relative to the seat back, the actuator moves a preset stroke to open and the table top is in a horizontal position, or moves a preset stroke to a closed position, and the actuator stops moving.

[0025] Preferably, the method further comprises:

[0026] S30. When the posture of the table top changes from a horizontal posture to a non-horizontal posture, the ECU controls the movement of the actuator according to the posture signal of the table top to adjust the table top to a horizontal posture.

[0027] Preferably, the method further comprises:

[0028] S40. When the ECU detects that the rotation speed of the actuator decreases by more than a first preset value or the operating current increases by more than a second preset value, the alarm generates and sends an alarm signal, and the ECU controls the actuator to stop moving or move in the reverse direction.

[0029] Preferably, the step S40 specifically includes:

[0030] S41, when the ECU detects that the rotation speed of the actuator decreases by more than a first preset value or the operating current increases by more than a second preset value, the ECU determines to trigger anti-pinch;

[0031] S42, when the ECU triggers anti-pinch, the alarm generates and sends out an alarm signal; and, S43, the ECU sends an end signal to the actuator, and the actuator stops moving; or, the ECU sends a reverse movement signal to the actuator, and the actuator moves in the reverse direction to a predetermined stroke.

[0032] The seat table automatic control system and control method provided by the present invention receive external operation instructions through the ECU, receive the operating position signal of the actuator, receive the speed signal or the operating current signal of the actuator, receive the posture signal of the table, and generate a driving signal to the actuator, control the movement of the actuator and thereby drive the table to rotate relative to the seat back, thereby realizing automatic control of opening, closing, angle control and operation control and other functions, achieving a high degree of intelligence, thereby realizing the intelligence of the car and providing users with a good user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic diagram of the three-dimensional structure of the seat table automatic control system provided by an embodiment of the present invention in an open state;

[0034] Figure 2 A schematic diagram of the system framework of a seat table automatic control system provided by an embodiment of the present invention;

[0035] Figure 3 for Figure 1 A schematic diagram of the three-dimensional structure of the automatic control system of the middle seat table in the closed state;

[0036] Figure 4 for Figure 1 A three-dimensional structural diagram of the automatic control system for the middle seat table with some components omitted;

[0037] Figure 5 A schematic diagram of the three-dimensional structure of another seat table automatic control system in an open state provided by an embodiment of the present invention;

[0038] Figure 6 This is a flow chart of the automatic control method of the seat table provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0039] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0040] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific processes and examples of materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0041] The purpose of the present invention is to provide a seat table automatic control system, which is used in cars, high-speed trains or airplanes. The seat table automatic control system can realize precise control of automatic opening and automatic folding of the table relative to the backrest, thereby realizing intelligent automatic control.

[0042] Please refer to Figures 1 to 5 , the seat table automatic control system comprises:

[0043] Seat back 10;

[0044] A table top 20, rotatably connected to the seat back 10;

[0045] A connecting rod mechanism 30, respectively connecting the seat back 10 and the table top;

[0046] An actuator 40 is disposed on the seat back 10 or the table top 20 and is used for transmission connection with the table top 20; and

[0047] An electronic control unit (ECU) is disposed on the seat back 10 or the table top 20, and the ECU is used to receive operating instructions, generate a drive signal to control the actuator 40, receive an operating position signal of the actuator 40, receive a speed signal or an operating current signal of the actuator 40, and receive a posture signal of the table top 20.

[0048] Among them, the table top 20 is rotatably connected to the seat back 10 through the connecting rod mechanism 30. Specifically, the connecting rod mechanism 30 can be rotatably connected to the seat back 10 and the table top 20 respectively, or can be rotatably connected to one of them and slidably connected to the other, playing the role of an intermediary connection to achieve the relative rotation connection between the seat back 10 and the table top 20.

[0049] The actuator 40 and the ECU may be disposed in a seat back or the table top 20 . In a preferred embodiment, they are specifically disposed in the table top 20 .

[0050] Furthermore, the ECU includes a gyroscope (not shown) or an angle sensor (not shown) for monitoring the attitude signal of the table top 20. In this embodiment, the attitude signal of the table top 20 is monitored by the gyroscope or the angle sensor. In theory, other sensors can also be used to monitor the attitude of the table top 20, such as a level meter to monitor whether the table top 20 reaches a horizontal attitude, and an infrared sensor or an imaging device to monitor the attitude signal of the table top 20.

[0051] Furthermore, the ECU includes a rotation speed sensor for monitoring the rotation speed of the actuator 40. It is understood that by monitoring the rotation speed of the actuator 40, it can be determined whether the actuator 40 is moving normally. For example, if an abnormal speed reduction state is detected, it can be determined that the table top 20 is blocked by external force during the rotation process.

[0052] Furthermore, the ECU includes a current sensor for monitoring the current signal returned by the actuator 40. It is understood that by monitoring the current signal of the actuator 40, it is also possible to determine whether the actuator 40 is moving normally. For example, if an abnormal increase in the current signal is detected, it can be determined that the table top 20 is blocked by external force during the rotation process, thereby causing the resistance to increase.

[0053] Furthermore, the seat table automatic control system also includes an induction switch (not shown), which is arranged between the seat back 10 and the table 20, and is used to sense that the table 20 is closed relative to the seat back 10, and to generate a closing status signal. The ECU is also used to receive the closing status signal and set the operating position signal to zero.

[0054] In this embodiment, an induction switch is provided to detect the normal closing of the table top 20 and to update the operating position signal. Taking into account the change in shape caused by repeated use of the equipment, it is possible that the table top 20 has been operated to a closed state in contact with the seat back 10 while the operating position signal of the system has not returned to zero, thereby avoiding affecting the subsequent automatic control and causing control errors.

[0055] Furthermore, the seat table automatic control system also includes a trigger switch 50, which is arranged on the seat back 10 and is electrically connected to the ECU, and is used to receive a trigger action and generate the operation instruction.

[0056] In this embodiment, the trigger switch 50 is specifically arranged on the side of the seat back 10 facing the table 20, which is convenient for user operation. Specifically, the trigger switch 50 can be a button type, a touch type, or a hand-wave sensing type. It can be understood that the trigger switch 50 can also be set to a voice control type, which can be set on the vehicle screen or any other component that can collect the passenger user's operation instructions.

[0057] Furthermore, the ECU includes an alarm, which is arranged on the seat back 10 or the table 20 and is electrically connected to the ECU, and is used to send an alarm signal in an abnormal state. Specifically, the alarm can be a buzzer, and the alarm signal can be an alarm sound.

[0058] Furthermore, the seat table automatic control system further includes a communication unit (not shown), which is arranged on the seat back 10 or the table 20 and is electrically connected to the ECU, and the ECU communicates with the outside through the communication unit. The communication unit can be a wireless communication module such as a Bluetooth module, a cellular network module, or a limited communication module connected to a vehicle computer.

[0059] Furthermore, the seat table automatic control system further includes a wireless charging unit 60 and a charging indicator light 65, which are disposed on the table 20 and electrically connected to the ECU. When the table 20 is in an open state and in a non-moving state, the user is provided with a wireless charging function and the charging status is displayed.

[0060] Furthermore, the seat table automatic control system further includes an electrically heated cup holder 70, which is disposed on the table 20 and electrically connected to the ECU. When the table 20 is in an open state and in a non-moving state, a cup heating function is provided for the user.

[0061] Furthermore, the seat table automatic control system further includes an atmosphere light 80, which is disposed on the periphery of the table 20 and is electrically connected to the ECU. The atmosphere light 80 is lit when the table 20 is turned on or opened to provide an atmosphere display.

[0062] Please refer to Figure 1 , Figure 3 and Figure 6 The embodiment of the present invention further provides a seat table automatic control method for controlling the seat table automatic control system according to the above, the method comprising:

[0063] S10, the ECU receives an operation instruction, and generates a driving signal according to the operation instruction;

[0064] S20, the actuator 40 moves according to the driving signal to drive the table top 20 to rotate relative to the seat back 10, the actuator 40 moves a preset stroke to open and the table top 20 is in a horizontal position, or moves a preset stroke to a closed position, and the actuator 40 stops moving.

[0065] In this embodiment, the driving signal includes an opening signal or a closing signal. Accordingly, the actuator 40 drives the table top 20 to open to a horizontal posture according to the driving signal, or drives the table top 20 to close to a folded and closed state that fits the seat back 10.

[0066] Furthermore, the method further comprises:

[0067] S30, when the posture of the table top 20 changes from a horizontal posture to a non-horizontal posture, the ECU controls the movement of the actuator 40 according to the posture signal of the table top 20, and adjusts the table top 20 to a horizontal posture.

[0068] In this embodiment, the posture of the table top 20 is monitored in the open state to avoid abnormal posture of the table top 20 affecting normal use by the user, and the table top 20 is mainly controlled to be in a relatively horizontal posture.

[0069] Furthermore, the method further comprises:

[0070] S40. When the ECU detects that the rotation speed of the actuator decreases by more than a first preset value or the operating current increases by more than a second preset value, the alarm generates and sends an alarm signal, and the ECU controls the actuator to stop moving or move in the reverse direction.

[0071] Specifically, the step S40 includes:

[0072] S41, when the ECU detects that the rotation speed of the actuator 40 decreases by more than a first preset value or the operating current increases by more than a second preset value, the ECU determines that anti-pinch is triggered;

[0073] S42, when the ECU triggers anti-pinch, the alarm generates and sends out an alarm signal; and, S43, the ECU sends an end signal to the actuator 40, and the actuator 40 stops moving; or, the ECU sends a reverse movement signal to the actuator 40, and the actuator 40 moves in the reverse direction to a predetermined stroke.

[0074] The seat table automatic control system and control method provided by the present invention receive external operation instructions through the ECU, receive the operating position signal of the actuator 40, receive the speed signal or the operating current signal of the actuator 40, receive the posture signal of the table 20, and generate a driving signal for the actuator 40, control the movement of the actuator 40 and thereby drive the table 20 to rotate relative to the seat back 10, thereby realizing automatic control of opening, closing, angle control and operation control and other functions, achieving a high degree of intelligence, thereby realizing the intelligence of the car and providing users with a good user experience.

[0075] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0076] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A seat table automatic control system, characterized in that: include: Seat backs; A table top, rotatably connected to the seat back; A connecting rod mechanism, respectively connecting the seat back and the table top; An actuator, arranged on the seat back or the table board, and used for transmission connection with the table board; as well as, An electronic control unit (ECU) is arranged on the seat back or the table top, and the ECU is used to receive operating instructions, generate a drive signal to control the actuator, receive an operating position signal of the actuator, receive a speed signal or an operating current signal of the actuator, and receive a posture signal of the table top.

2. The seat table automatic control system according to claim 1, characterized in that: The ECU includes a gyroscope or an angle sensor for monitoring the posture signal of the table top.

3. The seat table automatic control system according to claim 1, characterized in that: The ECU includes a rotation speed sensor for monitoring the rotation speed of the actuator; or, The ECU includes a current sensor for monitoring the current signal returned by the actuator.

4. The seat table automatic control system according to claim 1, characterized in that: The seat backrest further comprises a sensing switch, which is arranged between the seat backrest and the table plate, and is used to sense that the table plate is closed relative to the seat backrest and generate a closing state signal, and the ECU is also used to receive the closing state signal and reset the operating position signal to zero; and / or, It also includes a trigger switch, which is arranged on the seat back and electrically connected to the ECU, and is used to receive a trigger action and generate the operation instruction.

5. The seat table automatic control system according to claim 1, characterized in that: The ECU includes an alarm, which is arranged on the seat back or the table top and is electrically connected to the ECU and is used to send out an alarm signal in an abnormal state.

6. The seat table automatic control system according to claim 1, characterized in that: It also includes a communication unit, which is arranged on the seat back or the table and is electrically connected to the ECU, and the ECU communicates with the outside through the communication unit; and / or, It also includes a wireless charging unit and a charging indicator light, which are arranged on the table and electrically connected to the ECU; and / or, It also includes an electrically heated cup holder, which is disposed on the table and electrically connected to the ECU; and / or, It also includes an atmosphere light, which is arranged on the periphery of the table top and is electrically connected to the ECU.

7. A seat table automatic control method, characterized in that: Used to control the seat table automatic control system according to any one of claims 1 to 6, the method comprising: S10, the ECU receives an operation instruction, and generates a driving signal according to the operation instruction; S20, the actuator moves according to the driving signal to drive the table top to rotate relative to the seat back, the actuator moves a preset stroke to open and the table top is in a horizontal position, or moves a preset stroke to a closed position, and the actuator stops moving.

8. The automatic control method of the seat table according to claim 7, characterized in that: The method further comprises: S30. When the posture of the table top changes from a horizontal posture to a non-horizontal posture, the ECU controls the movement of the actuator according to the posture signal of the table top to adjust the table top to a horizontal posture.

9. The automatic control method of the seat table according to claim 7, characterized in that: The method further comprises: S40. When the ECU detects that the rotation speed of the actuator decreases by more than a first preset value or the operating current increases by more than a second preset value, the alarm generates and sends an alarm signal, and the ECU controls the actuator to stop moving or move in the reverse direction.

10. The automatic control method of the seat table according to claim 9, characterized in that: The step S40 specifically includes: S41, when the ECU detects that the rotation speed of the actuator decreases by more than a first preset value or the operating current increases by more than a second preset value, the ECU determines to trigger anti-pinch; S42, when the ECU triggers anti-pinch, the alarm generates and sends out an alarm signal; and, S43, the ECU sends an end signal to the actuator, and the actuator stops moving; or, the ECU sends a reverse movement signal to the actuator, and the actuator moves in the reverse direction to a predetermined stroke.

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