Automatic control system for seat table board

Abstract

The utility model 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.

Description

Technical Field

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

[0002] With the rapid development of the times, intelligent and electrified concept products have gradually penetrated into all aspects of people's lives and are everywhere. Among them, the intelligent development of transportation means is rapid, and in cars, high-speed rails, and airplanes, the intelligent demand for seats is increasingly valued by people.

[0003] Common seat backs are equipped with table boards for passengers to place water cups, mobile phones, or other items. Most current table boards are manually opened or closed by passengers, which is inconvenient during use and does not meet the development requirements of intelligence and electrification.

[0004] Currently, there are also a small number of seat table board products driven by electricity, but they have disadvantages such as imperfect functions and unstable control, and the degree of intelligence 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. For this reason, the present invention proposes an automatic control system for a seat table board. By using an electronic control unit (ECU) as the control center of the system, receiving external operation instructions, receiving the running position signal of the actuator, receiving the rotational speed signal or running current signal of the actuator, receiving the attitude signal of the table board, and generating a driving signal for the actuator, highly intelligent control of the seat table board is achieved, and the overall structure is simple and suitable for application in large-scale industrial production.

[0006] For this reason, in a first aspect, an embodiment of the present invention provides an automatic control system for a seat table board, including:

[0007] A seat back;

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

[0009] A link mechanism respectively connecting the seat back and the table board;

[0010] An actuator disposed on the seat back or the table board for drivingly connecting the table board; and,

[0011] An electronic control unit (ECU) disposed on the seat back or the table board, the ECU being configured to receive an operation instruction, generate a driving signal to control the actuator, receive the running position signal of the actuator, receive the rotational speed signal or running current signal of the actuator, and receive the attitude signal of the table board.

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

[0013] Preferably, the ECU includes a rotational speed sensor for monitoring the rotational 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 includes an induction switch disposed between the seat backrest and the table board for sensing the closing of the table board relative to the seat backrest and generating a closing state signal, and the ECU is further configured to receive the closing state signal and set the operation position signal to zero.

[0016] Preferably, it further includes a trigger switch disposed on the seat backrest and electrically connected to the ECU for receiving a trigger action and generating the operation instruction.

[0017] Preferably, the ECU includes an alarm disposed on the seat backrest or the table board and electrically connected to the ECU for emitting an alarm signal in an abnormal state.

[0018] Preferably, it further includes a communication unit disposed on the seat backrest or the table board and electrically connected to the ECU, and the ECU communicates with the outside through the communication unit.

[0019] Preferably, it further includes a wireless charging unit and a charging indicator disposed on the table board and electrically connected to the ECU.

[0020] Preferably, it further includes an electrically heated cup holder disposed on the table board and electrically connected to the ECU.

[0021] Preferably, it further includes an ambient light disposed around the table board and electrically connected to the ECU.

[0022] The automatic control system for the seat table board provided by the present invention receives an external operation instruction through the ECU, receives the operation position signal of the actuator, receives the rotational speed signal or the operation current signal of the actuator, receives the attitude signal of the table board, and generates a driving signal for the actuator to control the movement of the actuator and thus drive the table board to rotate relative to the seat backrest, realizing functions such as automatic control of opening, closing, angle control, and operation control, achieving a high degree of intelligence, and further realizing the intelligence of the vehicle, providing a good user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic three-dimensional structure diagram of the automatic control system for the seat table board provided by the embodiment of the present invention in the open state;

[0024] Figure 2 Schematic diagram of the system framework of the automatic control system for the seat table provided by the embodiment of the present invention;

[0025] Figure 3 is Figure 1 Schematic three-dimensional structure diagram of the automatic control system for the seat table in the closed state in;

[0026] Figure 4 is Figure 1 Schematic three-dimensional structure diagram of the automatic control system for the seat table in with some components omitted;

[0027] Figure 5 Schematic three-dimensional structure diagram of another automatic control system for the seat table provided by the embodiment of the present invention in the open state;

[0028] Figure 6 Flowchart of the automatic control method for the seat table provided by the embodiment of the present invention. Detailed implementation manners

[0029] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0030] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numerals and / or letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those of ordinary skill in the art can realize the applicability of other processes and / or the use of other materials.

[0031] The purpose of the present invention is to provide an automatic control system for a seat table, which is applied to an automobile, a high-speed train or an airplane. The automatic control system for the seat table can realize precise control of the automatic opening and automatic folding of the table relative to the backrest, and realize intelligent automatic control.

[0032] Please refer to together with Figures 1 to 5 , the automatic control system for the seat table includes:

[0033] Seat backrest 10;

[0034] Table board 20, rotatably connected to the seat backrest 10;

[0035] The linkage mechanism 30 is respectively connected to the seat backrest 10 and the table board;

[0036] The actuator 40 is disposed on the seat backrest 10 or the table board 20 and is used for drivingly connecting the table board 20; and,

[0037] The electronic control unit (ECU) is disposed on the seat backrest 10 or the table board 20. The ECU is used for receiving an operation instruction, generating a drive signal to control the actuator 40, receiving the running position signal of the actuator 40, receiving the rotational speed signal or the running current signal of the actuator 40, and receiving the attitude signal of the table board 20.

[0038] Wherein, the table board 20 is rotatably connected to the seat backrest 10 through the linkage mechanism 30. Specifically, the linkage mechanism 30 can be respectively rotatably connected to the seat backrest 10 and the table board 20, or can be rotatably connected to one of them and slidably connected to the other, playing an intermediary connection role to realize the relative rotational connection between the seat backrest 10 and the table board 20.

[0039] The actuator 40 and the ECU can be disposed in the seat backrest or the table board 20. In a preferred embodiment, they are specifically disposed in the table board 20.

[0040] Further, the ECU includes a gyroscope (not shown in the figure) or an angle sensor (not shown in the figure) for monitoring the attitude signal of the table board 20. In this embodiment, the attitude signal of the table board 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 board 20, such as a level for monitoring whether the table board 20 reaches a horizontal attitude, and an infrared sensor or an imaging device for monitoring the attitude signal of the table board 20.

[0041] Further, the ECU includes a rotational speed sensor for monitoring the rotational speed of the actuator 40. It can be understood that by monitoring the rotational speed of the actuator 40, it can be determined whether the actuator 40 is moving normally. For example, when an abnormal speed reduction state is detected, it can be determined that the table board 20 is blocked by an external force during rotation.

[0042] Further, the ECU includes a current sensor for monitoring the current signal returned by the actuator 40. It can be understood that by monitoring the current signal of the actuator 40, it can also be determined whether the actuator 40 is moving normally. For example, when an abnormal increase in the current signal is detected, it can be determined that the table board 20 is blocked by an external force during rotation, thereby causing an increase in resistance.

[0043] Further, the automatic control system of the seat table board further includes an induction switch (not shown in the figure), which is arranged between the seat backrest 10 and the table board 20, and is used to sense the closing of the table board 20 relative to the seat backrest 10 and generate a closing state signal. The ECU is further configured to receive the closing state signal and set the running position signal to zero.

[0044] In this embodiment, by setting the induction switch, it is used to detect the normal closing of the table board 20 and update the running position signal. Considering the morphological changes caused by repeated use of the device and other situations, it is possible to avoid the situation where the table board 20 has run to the closed state fitting the seat backrest 10 while the running position signal of the system has not been reset to zero, so as to avoid affecting subsequent automatic control and generating control errors.

[0045] Further, the automatic control system of the seat table board further includes a trigger switch 50, which is arranged on the seat backrest 10 and electrically connected to the ECU, and is used to receive a trigger action and generate the operation instruction.

[0046] In this embodiment, the trigger switch 50 is specifically arranged on the side of the seat backrest 10 facing the table board 20 for easy user operation. Specifically, the trigger switch 50 can be a button type, a touch type, or a wave sensing type. It can be understood that the trigger switch 50 can also be set to a voice control type, and it can be arranged on the vehicle-mounted screen or any other component that can collect the operation instructions of the passenger user.

[0047] Further, the ECU includes an alarm, which is arranged on the seat backrest 10 or the table board 20 and electrically connected to the ECU, and is used to emit an alarm signal in an abnormal state. Specifically, the alarm can be a buzzer, and the alarm signal can be an alarm sound.

[0048] Further, the automatic control system of the seat table board further includes a communication unit (not shown in the figure), which is arranged on the seat backrest 10 or the table board 20 and electrically connected to the ECU. The ECU communicates with the outside through the communication unit. The communication unit can be a wireless communication module such as a Bluetooth module or a cellular network module, or a wired communication module connected to the vehicle-mounted computer.

[0049] Further, the automatic control system of the seat table board further includes a wireless charging unit 60 and a charging indicator light 65, which are arranged on the table board 20 and electrically connected to the ECU. When the table board 20 is in the open state and not in the moving state, it provides a wireless charging function for the user and displays the charging status.

[0050] Further, the automatic control system for the seat table board further includes an electrically heated cup holder 70, which is disposed on the table board 20 and electrically connected to the ECU. When the table board 20 is in the open state and not in the moving state, it provides a function of heating the water cup for the user.

[0051] Further, the automatic control system for the seat table board further includes an ambient light 80, which is disposed around the table board 20 and electrically connected to the ECU. It lights up when the table board 20 is in the opened or open state, providing an ambient display.

[0052] Please refer to Figure 1 、 Figure 3 and Figure 6 , the embodiment of the present invention further provides an automatic control method for the seat table board, which is used to control the automatic control system for the seat table board according to the above, and the method includes:

[0053] S10. The ECU receives an operation instruction and generates a driving signal according to the operation instruction;

[0054] S20. The actuator 40 moves according to the driving signal and drives the table board 20 to rotate relative to the seat backrest 10. The actuator 40 moves a preset stroke to open and the table board 20 is in a horizontal posture, or moves a preset stroke to a closed posture, and the actuator 40 stops moving.

[0055] In this embodiment, the driving signal includes an opening signal or a closing signal. Correspondingly, the actuator 40 drives the table board 20 to open to a horizontal posture according to the driving signal, or drives the table board 20 to close to a retracted and closed state that fits the seat backrest 10.

[0056] Further, the method further includes:

[0057] S30. When the posture of the table board 20 changes from a horizontal posture to a non-horizontal posture, the ECU controls the actuator 40 to move according to the posture signal of the table board 20, and adjusts the table board 20 to a horizontal posture.

[0058] In this embodiment, by monitoring the posture of the table board 20 in the open state, it is avoided that the abnormal posture of the table board 20 affects the normal use of the user, and mainly controls the table board 20 to maintain a relatively horizontal posture.

[0059] Further, the method further includes:

[0060] S40. When the ECU detects that the rotational 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 emits an alarm signal, and the ECU controls the actuator 40 to stop moving or move in the reverse direction.

[0061] Specifically, step S40 specifically includes:

[0062] S41. When the ECU detects that the rotational 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 pinch protection is triggered.

[0063] S42. When the ECU triggers pinch protection, the alarm generates and emits 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 reverse to a predetermined stroke.

[0064] The automatic control system for the seat table provided by the present invention receives an external operation instruction through the ECU, receives the running position signal of the actuator 40, receives the rotational speed signal or operating current signal of the actuator 40, receives the attitude signal of the table board 20, and generates a driving signal for the actuator 40, controls the movement of the actuator 40 to drive the table board 20 to rotate relative to the seat backrest 10, realizes functions such as automatic control of opening, closing, angle control, and running control, realizes a high degree of intelligence, and further realizes the intelligence of the vehicle, providing a good user experience.

[0065] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection 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 can be combined in a suitable manner in any one or more embodiments or examples. In addition, without conflict, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0066] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An automatic control system for a seat table board, characterized in that, Comprising: A seat backrest; A table board, rotatably connected to the seat backrest; A linkage mechanism, connecting the seat backrest and the table board respectively; An actuator, disposed on the seat backrest or the table board, for drivingly connecting the table board; And, An electronic control unit (ECU), disposed on the seat backrest or the table board, the ECU is configured to receive an operation instruction, generate a drive signal to control the actuator, receive the running position signal of the actuator, receive the rotational speed signal or the running current signal of the actuator, and, receive the attitude signal of the table board.

2. The automatic control system for the seat table according to claim 1, wherein, The ECU includes a gyroscope or an angle sensor for monitoring the attitude signal of the table board.

3. The automatic control system for the seat table board according to claim 1, wherein, The ECU includes a rotational speed sensor for monitoring the rotational speed of the actuator; or, The ECU includes a current sensor for monitoring the current signal returned by the actuator.

4. The automatic control system for the seat table board according to claim 1, characterized in that, It further includes an induction switch, disposed between the seat backrest and the table board, for sensing the closure of the table board relative to the seat backrest, and generating a closed state signal, the ECU is further configured to receive the closed state signal, and set the running position signal to zero.

5. The automatic control system for a seat table according to claim 1, wherein It further includes a trigger switch, disposed on the seat backrest and electrically connected to the ECU, for receiving a trigger action, and, generating the operation instruction.

6. The automatic control system for the seat table board according to claim 1, characterized in that The ECU includes an alarm, disposed on the seat backrest or the table board and electrically connected to the ECU, for emitting an alarm signal in an abnormal state.

7. The automatic control system for the seat table according to claim 1, characterized in that, It further includes a communication unit, disposed on the seat backrest or the table board and electrically connected to the ECU, the ECU communicates with the outside through the communication unit.

8. The automatic control system for a seat table according to claim 1, characterized in that, It further includes a wireless charging unit and a charging indicator light, disposed on the table board and electrically connected to the ECU.

9. The automatic control system for the seat table board according to claim 1, wherein It further includes an electrically heated cup holder, disposed on the table board and electrically connected to the ECU.

10. The automatic control system for a seat table according to claim 1, characterized in that, It further includes an ambient light, disposed around the table board and electrically connected to the ECU.

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