System and method for seat battery charging

Abstract

A system and method of charging a seat battery in which a seat battery for supplying power to an additional device and movement of a position of a seat is located in the seat, so that even if the position of the seat is changed, the additional device contained in the seat can be supplied with continuous power. In addition, the position of the seat is moved to charge the seat battery, and the seat battery provided in the seat is charged in consideration of whether a passenger is seated on the seat, a state of charge of a battery of a vehicle, etc., thereby smoothly charging the seat battery.

Description

Technical Field

[0001] This invention relates to a system and method for charging a seat battery, and more specifically, to a system and method for charging a seat battery in which a battery for supplying power to additional devices and for seat position movement is provided in the seat, and to charging the battery provided in the seat under various conditions. Background Technology

[0002] The vehicle seat allows the driver or passenger to sit comfortably, freeing them from fatigue even on long journeys. This seat supports the passenger's weight and generally includes: a seat cushion that is slidably mounted forward and backward on the floor of the interior space; and a seat back that is rotatably mounted relative to the seat cushion at a predetermined angle to support the passenger's back.

[0003] The passenger compartment of a vehicle needs various spaces to accommodate people or items of different sizes. Recently, with the development of autonomous vehicles, seats have been configured to move to different positions within the vehicle or rotate 360°.

[0004] However, current vehicle seats include electric motors for moving the seats, and because various seat functions such as heating, ventilation, or massage are also installed, power is required to power the seats. Traditionally, however, seat movement has been limited because wiring has been used to power the various devices in the seats.

[0005] The information disclosed in the above background section is intended to understand the background technology of this invention and should not be construed as an admission that such information constitutes any part of the prior art. Summary of the Invention

[0006] Therefore, the present invention was made in view of the above problems, and the object of the present invention is to provide a system and method for charging a seat battery, wherein a battery for supplying power to an auxiliary device and for seat position movement is disposed in the seat, and the battery disposed in the seat is charged under various conditions.

[0007] According to one aspect of the invention, the above and other objectives can be achieved by providing a system for charging a seat battery, the system comprising: a seat battery, installed in a seat movable on a seat rail; a charging connector, installed on the seat rail and electrically connected to the seat battery when the seat is moved to a charging position to supply power from a vehicle battery to the seat battery; and a controller configured to control the position of the seat, receive information about the charging state of the seat battery, and move the seat to the charging position to electrically connect the seat battery and the charging connector to each other when the charging state of the seat battery is less than or equal to a preset capacity.

[0008] The seat battery and controller can be installed in a housing located under the seat and can be configured as an integrated module.

[0009] The housing may include a battery connector electrically connected to the seat battery, and the battery connector may be positioned electrically connected to the charging connector when the seat moves forward or backward to the corresponding maximum seat position on the seat rail.

[0010] When the seat moves forward or backward to the corresponding maximum seat position on the seat rail, the charging connector can be positioned to connect to the battery connector.

[0011] The controller can further receive information about whether the passenger is sitting in the seat, and when the seat battery's state of charge is less than or equal to a preset capacity and the passenger is not sitting in the seat, the controller can perform control to move the seat to the charging position.

[0012] When a passenger is seated, the controller can determine whether the state of charge of the seat battery is less than or equal to a preset capacity limit. When the state of charge of the seat battery is less than or equal to the preset capacity limit, the controller can perform control to move the seat to the charging position.

[0013] When the seat is moved to the charging position because the state of charge of the seat battery is less than or equal to a preset capacity limit, the controller can send a warning message or warning sound to the passenger via the warning transmitter.

[0014] When the seat battery's state of charge exceeds a preset capacity limit while the passenger is seated, the controller executes a control to move the seat to the charging position when it receives a charging command based on the passenger's operation of the controller.

[0015] The controller can further receive information about the seat's position and whether the vehicle's battery is charged. When the vehicle's battery is not charging and the seat is in the charging position, the controller can set limits on the seat battery charging based on preset charging states.

[0016] When the vehicle's battery is charged and the seat is in the charging position, the controller can fully charge the seat battery.

[0017] According to another aspect of the present invention, a method for charging a seat battery includes: a seat battery installed in a seat and configured to be charged by receiving vehicle power; and a charging connector installed on a seat rail and electrically connected to the seat battery when the seat is moved to a charging position to supply vehicle power to the seat battery. The method includes: a battery check operation to identify the charging state of the seat battery; and a charging determination operation, wherein when the charging state of the seat battery collected by the battery check operation is less than or equal to a preset capacity, the seat battery and the charging connector are electrically connected to each other by moving the seat to the charging position to charge the seat battery.

[0018] The method may further include: a seating check operation, further receiving information about whether a passenger is sitting in the seat, wherein the charging determination operation may include: moving the seat to a charging position when the state of charge of the seat battery is less than or equal to a preset capacity and the passenger is not sitting in the seat.

[0019] The charging determination operation may also include: when the passenger is seated, further determining whether the state of charge of the seat battery is less than or equal to a preset capacity limit; and when the state of charge of the seat battery is less than or equal to the capacity limit, executing control to move the seat to the charging position.

[0020] The charging confirmation operation may also include a warning operation, which sends a warning message or warning sound to the passenger when the seat is moved to the charging position because the state of charge of the seat battery is less than or equal to the capacity limit.

[0021] The charging determination operation may include: checking the charging command input based on the passenger's control; and, when the state of charge of the seat battery is greater than a preset capacity limit while the passenger is seated, executing control to move the seat to the charging position.

[0022] The method may further include: further inspection operations to identify information about the position of the seat and information about whether the vehicle's battery is charged, wherein the charging determination operation may include: setting a limit on the charging of the seat battery by means of a preset charging state when the vehicle's battery is not charging and the seat is in a charging position.

[0023] Charging confirmation operations may include: fully charging the seat battery when the vehicle's battery is already charged and the seat is in the charging position. Attached Figure Description

[0024] The above and other objects, features, and advantages of the present invention will become readily apparent from the following detailed description taken in conjunction with the accompanying drawings, wherein:

[0025] Figure 1This is a diagram illustrating a seat assembly with a battery charging system according to an exemplary embodiment of the present invention;

[0026] Figure 2 and Figure 3 This is for illustrating an exemplary embodiment of the present invention. Figure 1 A diagram of the seating arrangement shown;

[0027] Figure 4 This is a diagram illustrating the configuration of a seat battery charging system according to an exemplary embodiment of the present invention; and

[0028] Figure 5 and Figure 6 This is a flowchart of a method for charging a seat battery according to an exemplary embodiment of the present invention. Detailed Implementation

[0029] In the following description, systems and methods for charging seat batteries according to various exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

[0030] Figure 1 This is a diagram illustrating a seat assembly with a battery charging system for a seat according to an exemplary embodiment of the present invention. Figure 2 and Figure 3 This is for illustrating an exemplary embodiment of the present invention. Figure 1 The diagram shows the seating arrangement. Figure 4 This is a diagram illustrating the configuration of a seat battery charging system according to an exemplary embodiment of the present invention. Figure 5 and Figure 6 This is a flowchart of a method for charging a seat battery according to an exemplary embodiment of the present invention.

[0031] like Figures 1 to 4 As shown, a battery charging system for a seat according to an exemplary embodiment of the present invention may include: a seat battery 30, installed in a seat 20 movable on a seat rail 10; a charging connector 40, installed on the seat rail 10, and electrically connected to the battery 30 and supplying battery power to the vehicle when the seat 20 is moved to a charging position; and a controller 50 configured to control the position of the seat 20, receive information about the charging state of the battery 30, and perform control to electrically connect the battery 30 and the charging connector 40 to each other by moving the seat 20 to a charging position when the charging state of the battery 30 is less than or equal to a preset capacity.

[0032] Thus, according to an exemplary embodiment of the present invention, the battery charging system may include: a seat battery 30 installed in the seat 20; a charging connector 40 installed on the seat rail 10; and a controller 50 configured to control the position of the seat 20 and the charging of the seat battery 30.

[0033] Here, when the drive motor 25 is operated, the seat 20 can be moved on the seat rail 10, and the controller 50 can change the position of the seat 20 by controlling the drive motor 25. The sliding structure for moving the seat 20 on the seat rail 10 is a commonly used technology, therefore, a detailed description is omitted here.

[0034] The seat battery 30 may include a drive motor 25 installed in the seat 20 and using charged power to move the position of the seat 20, and the seat battery 30 may be configured to power various attachments to the seat. The battery 30 may be independently mounted on the seat 20 without needing to be connected to a separate external power source, and may be rechargeable by a power source.

[0035] The charging connector 40 can be mounted on the seat rail 10 and can supply power from the vehicle battery to the seat battery 30 installed in the seat 20. The charging connector 40 can be fixedly mounted on the seat rail 10, and when the seat 20 moves, when the seat 20 is positioned toward the seat battery 30, power from the vehicle battery can be transferred to the seat battery 30 to charge the seat battery 30.

[0036] Here, the seat battery 30 and controller 50 can be installed in a housing 60 located below the seat 20 to form an integrated module. This allows the controller 50, including the seat battery 30 and the printed circuit board (PCB), to be installed together inside the housing 60 as an integrated module. Therefore, the installation space in the downward direction of the seat 20 can be reduced, and the controller 50 and seat battery 30 can be electrically connected to each other without separate wiring for interconnection. The housing 60 can be formed of steel to protect the seat battery 30 and controller 50 from external impacts.

[0037] The housing 60 may include a battery connector 61 electrically connected to the seat battery 30, and the battery connector 61 may be arranged to electrically connect to a charging connector 40 when the seat 20 is moved forward or backward to a corresponding maximum position on the seat rail 10. Therefore, when the seat 20 is moved forward or backward to its maximum position on the seat rail 10, the charging connector 40 may be positioned to connect to the battery connector 61.

[0038] Here, the battery connector 61 and the charging connector 40 may include spring pins or four pins electrically connected to each other, and the battery connector 61 connected to the seat battery 30 may protrude from the housing 60 to be electrically connected to the charging connector 40.

[0039] When the seat 20 is moved forward or backward to its maximum position, the battery connector 61 and the charging connector 40 can connect to each other, and the passenger sitting in the seat 20 can identify the charging status of the seat battery 30. Additionally, when the seat 20 is moved forward or backward to its maximum position, the seat battery 30 can be charged, thus preventing the seat battery 30 from being repeatedly charged due to frequent changes in seat position.

[0040] Thus, according to an exemplary embodiment of the present invention, the seat battery 30 and controller 50, which are integrated into a single module via the housing 60, can be disposed below the seat 20. Therefore, even if the position of the seat 20 is changed, continuous power can be supplied to the additional devices included in the seat 20. When the seat 20 is moved forward or backward to its maximum position, the seat battery 30 can be charged.

[0041] According to an exemplary embodiment of the present invention, the aforementioned controller can control the position of the seat 20 based on the charging state of the seat battery 30, and can also charge the seat battery 30.

[0042] That is, the controller 50 can be set to control the position of the seat 20 and receive information about the charging status of the seat battery 30. When the charging status of the seat battery 30 is less than or equal to a preset capacity, the controller 50 can perform control to electrically connect the seat battery 30 and the charging connector 40 by moving the seat 20 to the charging state.

[0043] In this way, the controller 50 can receive information about the remaining capacity and voltage of the seat battery 30 to identify the charging state of the seat battery 30. When the charging state of the seat battery 30 is less than or equal to a preset capacity, the controller 50 can move the seat 20 to the charging position to electrically connect the seat battery 30 and the charging connector 40 to each other to charge the seat battery 30. Here, the charging capacity of the seat battery 30 can be preset according to the power required by the seat attachment, for example, it can be 40% of the total capacity of the seat battery 30.

[0044] Thus, when the state of charge of the seat battery 30 is less than or equal to the preset capacity, the controller 50 can perform control to move the seat 20 to the charging position and charge the seat battery 30.

[0045] The controller 50 can further receive information about whether the passenger is sitting in the seat, and can execute control to move the seat 20 to the charging position when the state of charge of the seat battery 30 is less than or equal to a preset capacity and the passenger is not sitting in the seat.

[0046] The controller 50 can receive information about whether a passenger is sitting in the seat via the seat sensor 90. In the presence of the seat sensor 90, the controller 50 can check the pressure of the passenger sitting in the seat 20 or check whether the seatbelt is fastened to determine if the passenger is seated. Alternatively, infrared light or changes in body temperature can also be used to check if a passenger is seated.

[0047] Thus, when checking whether a passenger is sitting in the seat, if the state of charge of the seat battery 30 is less than or equal to the preset capacity and the passenger is not sitting in the seat, the controller 50 can perform control to move the seat 20 to the charging position and charge the seat battery 30.

[0048] That is, when the state of charge of the seat battery 30 is less than or equal to a preset capacity, the seat 20 can be moved to charge the seat battery 30. However, if the seat 20 is forcibly moved forward or backward while the passenger is sitting on it, the passenger may feel unfamiliar and inconvenient. Therefore, when the passenger is not sitting on the seat 20, the controller 50 can move the seat 20 to charge the seat battery 30.

[0049] The controller 50 can determine whether the state of charge of the seat battery 30 is less than or equal to a preset capacity limit when the passenger is sitting on the seat 20, and when the state of charge of the seat battery 30 is less than or equal to the preset capacity limit, the controller 50 can perform control to move the seat 20 to the charging position.

[0050] Here, the capacity limit in the controller 50 can be preset according to the electrical energy required by the seat attachment, for example, it can be less than or equal to 5% of the total capacity of the seat battery 30. That is, regarding the capacity limit, when the remaining capacity of the seat battery 30 becomes less than the capacity limit, the drive of the seat attachment, including the movement of the seat 20, is immediately disabled, and in this regard, when the state of charge of the seat battery 30 is less than or equal to the capacity limit, the controller 50 can move the seat 20 to the charging position to charge the seat battery 30.

[0051] In this situation, because the state of charge of the seat battery 30 is less than or equal to the capacity limit, when the controller 50 executes control to move the seat 20 to the charging position, the controller 50 can send a warning message or warning sound to the passenger via the warning transmitter 70.

[0052] Here, the warning transmitter 70 may include a display or a speaker and may send a warning message or warning sound to make the passenger sitting in seat 20 aware that seat 20 should be moved because the seat battery 30 of seat 20 is insufficient.

[0053] That is, when the state of charge of the seat battery 30 is less than or equal to the capacity limit, when the controller 50 executes control to move the seat 20 to the charging position, the passenger sitting on the seat 20 may feel inconvenienced by the sudden movement of the seat 20. Therefore, the warning transmitter 70 can transmit a signal corresponding to the movement of the seat 20 to the passenger, thereby eliminating the factors that cause inconvenience to the passenger.

[0054] When the seat battery 30 is in a state of charge greater than a preset capacity limit while the passenger is sitting in the seat, the controller 50 can execute control to move the seat 20 to the charging position when it receives a charging command based on the passenger's operation of the controller 80.

[0055] Specifically, when the state of charge of the seat battery 30 is less than or equal to a set capacity and greater than a capacity limit, the seat battery 30 of the seat 20 can be charged if an intention to operate the passenger-based control device 80 is applied. Here, the control device 80 can be a switch for moving the seat 20 to the charging position, and can move the seat 20 to the charging position regardless of the charging of the seat battery 30.

[0056] Thus, when the state of charge of the seat battery 30 is less than or equal to the set capacity and greater than the capacity limit, if an intention to charge the seat battery 30 is applied based on the operation of the passenger's control device 80, the controller 50 can move the seat 20 to the charging position to charge the seat battery 30.

[0057] In this way, when the state of charge of the seat battery 30 is less than or equal to the set capacity, the current state can be maintained unless the passenger intends to charge the seat battery 30, so as to prevent the passenger sitting in the seat 20 from feeling inconvenienced.

[0058] The controller 50 can receive information about the position of the seat 20 and whether the vehicle battery is charged. When the vehicle battery is not charged and the seat 20 is in the charging position, the controller 50 can set a limit on the charging of the seat battery 30 through a preset charging state.

[0059] In this way, the controller 50 can receive information about the position of the seat 20 from the seat position sensor 95, and can measure the vehicle's battery voltage to receive information about whether the vehicle's battery is charged. Furthermore, the preset charging state in the controller 50 can correspond to the degree of smooth movement of the seat 20 and the actuation of the seat attachments; for example, it can be set to 60% of the total charging state of the seat battery 30.

[0060] When the seat battery 30 of seat 20 is charged without regard to the remaining capacity of the vehicle's battery, there is a problem that the vehicle's battery may be discharged. Therefore, when the vehicle's battery is not being charged and seat 20 is in the charging position, controller 50 can set a limit on the charging of seat battery 30 through a preset charging state, thereby preventing the vehicle's battery from being discharged due to charging seat battery 30 of seat 20.

[0061] When the vehicle's battery is charged and the seat 20 is in the charging position, the controller 50 can fully charge the seat battery 30. That is, even when the vehicle's battery is charged, the remaining capacity of the vehicle's battery can be fully maintained even when the vehicle's battery is charging the seat battery 30. Therefore, when the vehicle's battery is charged, if the seat 20 is in the charging position and the seat battery 30 is being charged, the controller 50 can fully charge the seat battery 30.

[0062] The following describes a charging method for the seat battery 30 of a seat 20 according to an exemplary embodiment of the present invention. Here, the seat battery 30 of the seat 20 can be disposed within the seat 20 and can receive charging power. A charging connector 40 can be disposed on the seat rail 10 and, when the seat 20 is moved to the charging position, can be electrically connected to the seat battery 30 to supply vehicle power to the seat battery 30. The charging method for the seat battery 30 of a seat 20 according to an exemplary embodiment of the present invention can be performed using the aforementioned structure.

[0063] In detail, such as Figure 5 and Figure 6 As shown, the charging method for the seat battery 30 of the seat 20 may include: a battery check operation S10, which identifies the charging state of the seat battery 30; and a charging determination operation S20, which, when the charging state of the seat battery 30 collected by the battery check operation S10 is less than or equal to a preset capacity, moves the seat 20 to the charging state to electrically connect the seat battery 30 and the charging connector 40 to each other to charge the seat battery 30.

[0064] Thus, in the charging determination operation S20, when the state of charge of the seat battery 30 is less than or equal to the set capacity, the seat 20 can be moved to the charging position, so that the seat battery 30 and the charging connector 40 can be electrically connected to each other to charge the seat battery 30. Here, the set capacity can be preset according to the power required by the auxiliary devices of the seat 20, for example, it can be 40% of the total capacity of the seat battery 30.

[0065] The charging method may also include a seating check operation S30 for further receiving information about whether the passenger is sitting in the seat, and in the charging determination operation S20, when the state of charge of the seat battery 30 is less than or equal to a preset capacity, the seat 20 can be moved to the charging position when the passenger is not sitting in the seat.

[0066] That is, when the state of charge of the seat battery 30 is less than or equal to a preset capacity, the seat 20 needs to be moved to charge the seat battery 30. In this regard, if the seat 20 is forcibly moved forward or backward while the passenger is sitting on it, the passenger may feel unfamiliar and inconvenient. Therefore, when the seating check operation S30 detects that the passenger is not sitting on the seat 20, the seat 20 can be moved to charge the seat battery 30 during the charging confirmation operation S20.

[0067] In the charging determination operation S20, when the passenger is sitting in the seat, it can be determined whether the charging state of the seat battery 30 is less than or equal to a preset capacity limit, and when the charging state of the seat battery 30 is less than or equal to the capacity limit, the seat 20 can be controlled to move to the charging position.

[0068] Regarding the capacity limit, when the remaining capacity of the seat battery 30 becomes less than the capacity limit, the drive of the seat attachment, including the movement of the seat 20, is immediately disabled. In this regard, when the state of charge of the seat battery 30 is less than or equal to the capacity limit, the controller 50 can move the seat 20 to the charging position to charge the seat battery 30.

[0069] In the charging confirmation operation S20, the charging method may also include a warning operation S40, which sends a warning message or warning sound to the passenger when the seat 20 is moved to the charging position because the seat battery 30 is less than or equal to the capacity limit.

[0070] Here, a warning message or warning sound can be sent via a display or speaker, and in this regard, a warning message or warning sound can be sent to make the passenger sitting in seat 20 aware that seat 20 should be moved because the seat battery 30 of seat 20 is insufficient.

[0071] Thus, when the state of charge of the seat battery 30 is less than or equal to the capacity limit, the passenger sitting on the seat 20 may feel inconvenienced by the sudden movement of the seat 20 when the seat 20 moves to the charging position. Therefore, a warning operation S40 can be performed to transmit a signal corresponding to the movement of the seat 20 to the passenger, thereby eliminating the factors that cause inconvenience to the passenger.

[0072] In the charging determination operation S20, when the charging status of the seat battery 30 is greater than a preset capacity limit while the passenger is sitting on the seat, the charging command input based on the passenger's control device 80 can be checked, and when the charging command is received, the seat 20 can be controlled to move to the charging position.

[0073] Specifically, when the state of charge of the seat battery 30 is less than or equal to a set capacity and greater than a capacity limit, the seat battery 30 of the seat 20 can be charged if a passenger intention is applied. Here, the actuator 80 can be a switch for moving the seat 20 to the charging position, and can move the seat 20 to the charging position regardless of the charging of the seat battery 30.

[0074] Thus, when the state of charge of the seat battery 30 is less than or equal to the set capacity and greater than the capacity limit, if an intention to charge the seat battery 30 is applied based on the operation of the passenger's control device 80, the seat 20 can be moved to the charging position to charge the seat battery 30.

[0075] The charging method may also include a further inspection operation S50, which identifies information about the position of the seat 20 and whether the vehicle battery is charged. In the charging determination operation S20, when the vehicle battery is not charging and the seat 20 is in the charging position, a limit can be set on the charging of the seat battery 30 by means of a preset charging state.

[0076] When the seat battery 30 of seat 20 is charged without regard to the remaining capacity of the vehicle's battery, there is a risk of the vehicle's battery being discharged. Therefore, when a further inspection operation S50 detects that the vehicle's battery is not charging and seat 20 is in the charging position, a limit can be set on the charging of seat battery 30 by setting a preset charging state in the charging determination operation S20, thereby preventing the vehicle's battery from discharging due to charging seat battery 30 of seat 20.

[0077] In the charging confirmation operation S20, when the vehicle's battery is already charged and the seat 20 is in the charging position, the seat battery 30 can be fully charged.

[0078] That is, when the vehicle's battery is already charged, even if the seat battery 30 of seat 20 is charged using the vehicle's battery, the remaining capacity of the vehicle's battery can be fully maintained. Therefore, in the charging determination operation, when the vehicle's battery is already charged, if seat 20 is in the charging position and seat battery 30 of seat 20 is being charged, seat battery 30 can be fully charged.

[0079] In the system and method for charging a seat battery having the above-described structure, the seat battery 30, which supplies power to the auxiliary devices and the movement of the seat 20, can be located within the seat 20. Therefore, even if the position of the seat 20 changes, continuous power can be supplied to the auxiliary devices included in the seat 20. Furthermore, the seat 20 can be moved to charge the seat battery 30, and the charging of the seat battery 30 can be optimized by considering factors such as whether a passenger is sitting in the seat and the charging status of the vehicle's battery, thereby ensuring a smooth charging process for the seat battery 30.

[0080] In the system and method for charging a seat battery having the above-described structure, the seat battery, which supplies power to auxiliary devices and the movement of the seat position, can be located within the seat. Even if the seat position changes, continuous power can be supplied to the auxiliary devices included in the seat. Furthermore, the seat position can be moved to charge the seat battery, and the charging of the seat battery can be optimized by considering factors such as whether a passenger is sitting in the seat and the charging status of the vehicle's battery, thereby ensuring smooth charging of the seat battery.

[0081] Those skilled in the art will understand that the effects achievable by the present invention are not limited to those specifically described above, and that other advantages of the present invention will become more apparent from the detailed description.

[0082] Although exemplary embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art will understand that the present invention can be implemented in various other ways without changing the technical concept or features of the present invention.

Claims

1. A seat battery charging system, comprising: a seat battery installed in a seat movable on a seat rail; a charging connector installed on the seat rail and electrically connected to the seat battery when the seat is moved to a charging position to supply power of a vehicle battery to the seat battery; and a controller configured to control a position of the seat, receive information on a state of charge of the seat battery, and move the seat to the charging position to electrically connect the seat battery and the charging connector to each other when the state of charge of the seat battery is less than or equal to a preset capacity, wherein the controller further receives information on whether a passenger is seated on the seat, and performs control to move the seat to the charging position when the state of charge of the seat battery is less than or equal to the preset capacity and the passenger is not seated on the seat. The seat battery and the controller are installed in a housing disposed under the seat and configured as one integrated module.

2. The system of claim 1, wherein, The housing includes a battery connector electrically connected to the seat battery, and the battery connector is positioned to be electrically connected to the charging connector when the seat is moved forward or backward to a corresponding maximum seat position on the seat rail.

3. The system of claim 2, wherein, The charging connector is positioned to be connected to the battery connector when the seat is moved forward or backward to the corresponding maximum seat position on the seat rail.

4. The system of claim 3, wherein, When the passenger is seated on the seat, the controller determines whether the state of charge of the seat battery is less than or equal to a preset capacity limit, and performs control to move the seat to the charging position when the state of charge of the seat battery is less than or equal to the preset capacity limit.

5. The system of claim 1, wherein, When the seat is controlled to be moved to the charging position due to the state of charge of the seat battery being less than or equal to the preset capacity limit, the controller transmits a warning message or a warning sound to the passenger through a warning transmitter.

6. The system of claim 5, wherein, When the state of charge of the seat battery is greater than the preset capacity limit while the passenger is seated on the seat, if the controller receives a charging command based on a passenger manipulator manipulation, the controller performs control to move the seat to the charging position.

7. The system of claim 5, wherein, 8. A seat battery charging system, comprising: a seat battery installed in a seat movable on a seat rail; a charging connector installed on the seat rail and electrically connected to the seat battery when the seat is moved to a charging position to supply power of a vehicle battery to the seat battery; and a controller configured to control a position of the seat, receive information on a state of charge of the seat battery, and move the seat to the charging position to electrically connect the seat battery and the charging connector to each other when the state of charge of the seat battery is less than or equal to a preset capacity, wherein the controller further receives information on the position of the seat and information on whether the battery of the vehicle is charged, and ​ ​ The controller sets a limit on charging of the seat battery by a preset state of charge when the battery of the vehicle is not charged and the seat is located at the charging position.

9. The system of claim 8, wherein, The controller fully charges the seat battery when the battery of the vehicle is charged and the seat is located at the charging position.

10. A method of charging a seat battery, wherein: The seat battery is installed in a seat and configured to be charged by receiving vehicle power; a charging connector is installed on a seat rail and electrically connected to the seat battery to supply the vehicle power to the seat battery when the seat is moved to a charging position, the method comprising the steps of: A battery check operation identifies a state of charge of the seat battery; A charging determination operation moves the seat to the charging position to electrically connect the seat battery and the charging connector to each other to charge the seat battery when the state of charge of the seat battery collected by the battery check operation is less than or equal to a preset capacity; and A seating check operation further receives information on whether a passenger is seated on the seat, The charging determination operation includes moving the seat to the charging position when the state of charge of the seat battery is less than or equal to the preset capacity and the passenger is not seated on the seat.

11. The method of claim 10, wherein, The charging determination operation includes further determining whether the state of charge of the seat battery is less than or equal to a preset capacity limit when the passenger is seated on the seat, and performing control to move the seat to the charging position when the state of charge of the seat battery is less than or equal to the preset capacity limit.

12. The method of claim 10, wherein, The charging determination operation further includes a warning operation that sends a warning message or a warning sound to the passenger when the seat is controlled to move to the charging position due to the state of charge of the seat battery being less than or equal to the preset capacity limit.

13. The method of claim 10, wherein, The charging determination operation includes checking a charging command input based on manipulation of a manipulator of the passenger, and performing control to move the seat to the charging position when the passenger is seated on the seat while the state of charge of the seat battery is greater than the preset capacity limit.

14. A method of charging a seat battery, wherein: The seat battery is installed in a seat and configured to be charged by receiving vehicle power; a charging connector is installed on a seat rail and electrically connected to the seat battery to supply the vehicle power to the seat battery when the seat is moved to a charging position, the method comprising the steps of: A battery check operation identifies a state of charge of the seat battery; A charging determination operation moves the seat to the charging position to electrically connect the seat battery and the charging connector to each other to charge the seat battery when the state of charge of the seat battery collected by the battery check operation is less than or equal to a preset capacity; and A further check operation identifies information on a position of the seat and information on whether the battery of the vehicle is charged, The charging determination operation includes setting a limit on charging the seat battery by a preset charging state when the battery of the vehicle is not charged and the seat is located in the charging position.

15. The method of claim 14, wherein, The charging determination operation includes fully charging the seat battery when the battery of the vehicle is charged and the seat is located in the charging position.

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