Vehicle seat control system

Abstract

The present disclosure provides a seat control system for a vehicle, which can sense whether passengers are seated on the front seats and rear seats, and easily achieve sleeping and resting postures of the front seats and rear seats by adjusting the height, tilt, etc. of the front seats and rear seats according to the sensing results.

Description

Technical Field

[0001] The present disclosure relates to a seat control system for a vehicle, and more particularly, to a seat control system for a vehicle that can easily achieve sleeping and resting postures of front and rear seats according to whether passengers have sat on the front and rear seats. Background Art

[0002] Generally, the front seats and the rear seats are installed in the vehicle interior while maintaining a predetermined front-rear interval, and the front seats and the rear seats further include a reclining device capable of adjusting the angle of a seat back.

[0003] If the passenger seated on the front seat performs a reclining operation to tilt the front seat back backward, the front seat back comes into contact with the knees of the passenger seated on the rear seat or a space where the knees and legs can be placed becomes narrow, and therefore, the passenger seated on the rear seat may feel uncomfortable.

[0004] Further, if the distance between the front seats and the rear seats is narrow, the inconvenience of the passengers seated on the rear seats may be increased because the space in which the feet and legs of the passengers seated on the rear seats can stretch becomes narrow.

[0005] The above information disclosed in this Background section is only for enhancement of understanding of the background of the disclosure and therefore the above information may contain information that does not form the prior art that is already known in this country to one of ordinary skill in the art. Summary of the invention

[0006] The present disclosure aims to solve the above problems, and the purpose of the present disclosure is to provide a seat control system for a vehicle, which can sense whether passengers are seated on the front seats and the rear seats, and easily achieve the sleeping and resting postures of the front seats and the rear seats by adjusting the height, tilt, etc. of the front seats and the rear seats according to the sensing results.

[0007] To achieve this objective, the present disclosure provides a seat control system for a vehicle, the system comprising: a first actuator hinged between a floor and a front bottom surface of a front seat cushion; a second actuator hinged between the floor and the first actuator; a third actuator connected between a rear bottom surface of the front seat cushion and the floor; a first link hinged between the floor and a front bottom surface of a rear seat cushion; a second link hinged between the floor and a rear bottom surface of the rear seat cushion; a fourth actuator connected to a hinge shaft of the second link to transmit rotational power to the hinge shaft of the second link; and a control module for sensing whether passengers are seated on the front seats and the rear seats, and driving and controlling one or more of the first to fourth actuators to perform height adjustment, tilt adjustment or pitch operation on one or more of the front seats and the rear seats according to the sensing results.

[0008] The first actuator includes: a first cylinder body; a first piston built into the first cylinder body so as to be movable forward and backward and hingedly connected to the front bottom surface of the front seat cushion; a first motor mounted to the first cylinder body to provide a forward and backward moving driving force to the first piston; and a supporting link branched from the lower portion of the first cylinder body so as to be hingedly connected to the floor.

[0009] The second actuator includes: a second cylinder body hinged to the floor; a second piston built into the second cylinder body to be movable forward and backward and hinged to the first cylinder body of the first actuator; and a second motor mounted to the second cylinder body to provide forward and backward movement driving force to the second piston.

[0010] The third actuator includes: a third cylinder body hinged to the floor; a third piston built into the third cylinder body so as to be movable forward and backward and hinged to the rear bottom surface of the front seat cushion; and a third motor mounted to the third cylinder body to provide forward and backward movement driving force to the third piston.

[0011] The fourth actuator employs a motor mounted to the floor to transmit rotational power to the hinge shaft of the second link.

[0012] The control module includes: a first passenger sensing sensor installed on the front seat to sense whether the first passenger is seated on the front seat; a first seat posture sensing sensor for sensing the current posture of the front seat; a second passenger sensing sensor installed on the rear seat to sense whether the second passenger is seated on the rear seat; a second seat posture sensing sensor for sensing the current posture of the rear seat; and a seat controller for driving and controlling one or more of the first to fourth actuators based on sensing signals of the first and second passenger sensing sensors and sensing signals of the first and second seat posture sensing sensors after receiving an input signal of a front seat rest mode switch or a rear seat rest mode switch, so as to perform height adjustment, tilt adjustment and pitch operation on one or more of the front and rear seats.

[0013] Preferably, the first passenger sensing sensor and the second passenger sensing sensor are seat belt wearing sensing sensors that sense whether the seat belt is worn.

[0014] Preferably, the first seat posture sensing sensor and the second seat posture sensing sensor employ hall sensors included in motors of the first to fourth actuators.

[0015] In the simultaneous rest mode of the front seats and the rear seats, the seat controller is configured to: control the following operations to raise the front seats: the first piston of the first actuator moves forward, the first actuator is pushed backward and angularly rotated by the forward movement of the second piston of the second actuator, and the third piston of the third actuator is moved forward and angularly rotated forward while moving forward, control the unidirectional rotation drive of the fourth actuator so that the first link tilts backward while the second link tilts backward, and control the tilting operation of the front seat back of the front seat and the rear seat back of the rear seat.

[0016] Further, in the front seat individual resting mode in a state in which the second passenger is not seated on the rear seat, the seat controller is configured to control only the tilting operation of the front seat back of the front seat.

[0017] Furthermore, in the individual rest mode of the front seat in a state where a second passenger is seated on the rear seat, the seat controller is configured to: control the following operations to raise the front seat: forward movement of the first piston of the first actuator, forward movement of the second piston of the second actuator to allow the first actuator to perform angular rotation while being pushed rearward, and forward angular rotation of the third piston of the third actuator while moving forward, control the tilting operation of the front seat backrest of the front seat, and control the unidirectional rotation drive of the fourth actuator to allow the first link to tilt rearward while the second link tilts rearward to lower the rear seat.

[0018] Further, in the rear seat individual rest mode when the first passenger is not seated on the front seat, the seat controller is configured to: control the following operations to tilt the front seat forward: the first piston of the first actuator moves backward, the second piston of the second actuator moves backward so that the first actuator performs angular rotation while being pushed forward, and the third piston of the third actuator performs forward angular rotation while moving forward, and control the tilt operation of the rear seat backrest of the rear seat.

[0019] Further, in the rear seat individual rest mode in a state where the first passenger is seated on the front seat, the seat controller is configured to: control the following operations to raise the front seat: forward movement of the first piston of the first actuator, forward movement of the second piston of the second actuator to allow the first actuator to perform angular rotation while being pushed rearward, and forward angular rotation of the third piston of the third actuator while moving forward, and control the tilt operation of the rear seat backrest of the rear seat.

[0020] Preferably, the seat controller is configured to perform control to return the front seats and the rear seats from the rest mode posture to the original posture upon receiving destination arrival information of the vehicle.

[0021] The present disclosure provides the following effects through the above-mentioned configuration.

[0022] Firstly, passengers seated in the front and rear seats can comfortably adopt sleeping and resting positions at the same time.

[0023] Secondly, even if the front seat backrest is tilted in a state where passengers are seated on the front and rear seats, the rear seats can be lowered while the front seats are raised, thereby conveniently ensuring a spacious space for passengers sitting on the rear seats to stretch their feet and legs.

[0024] Thirdly, if a passenger takes a resting position in the rear seat when the passenger is not seated in the front seat, the front seat can be tilted forward, thereby providing a spacious space for the passenger seated in the rear seat to stretch his feet and legs.

[0025] It should be understood that the term "vehicle" or "vehicle-related" or other similar terms used herein generally include motor vehicles, such as passenger cars including sport utility vehicles (SUVs), buses, trucks, various commercial vehicles, watercraft including various boats and ships, aircraft, etc., and include hybrid vehicles, electric vehicles, plug-in hybrid vehicles, hydrogen-powered vehicles, and other alternative fuel (e.g., fuels derived from resources other than petroleum) vehicles. As referred to herein, a hybrid vehicle is a vehicle having two or more power sources, such as a gasoline and electric dual-powered vehicle.

[0026] The above and other features of the present disclosure are discussed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and other features of the present disclosure will now be described in detail with reference to certain exemplary embodiments of the present disclosure shown in the accompanying drawings, which are given hereinafter by way of illustration only and therefore do not limit the present disclosure, wherein:

[0028] Figure 1 is an exploded perspective view showing a seat assembly applied to a seat control system according to the present disclosure;

[0029] Figure 2 It is shown Figure 1 A side view of the seat assembly shown in an assembled state;

[0030] Figure 3 is a control block diagram showing a control module of a seat control system according to the present disclosure;

[0031] Figure 4 and Figure 5 is a flowchart showing a control process of a seat control system according to the present disclosure; and

[0032] Figures 6 to 10 is a side view showing operation traces of front seats and rear seats by control of the seat control system according to the present disclosure.

[0033] It should be understood that the accompanying drawings are not necessarily drawn to scale, showing slightly simplified representations of various preferred features that illustrate the basic principles of the present disclosure. The specific design features of the present disclosure disclosed herein, for example, including specific dimensions, directions, locations, and shapes, will be determined in part by the specific intended use and use environment.

[0034] In the drawings, like reference numerals refer to the same or equivalent parts of the present disclosure throughout the several figures of the drawing. DETAILED DESCRIPTION

[0035] Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0036] Figure 1 is a perspective view showing a seat assembly applied to a seat control system according to the present disclosure, and Figure 2 is a side view showing an assembled state of each seat assembly.

[0037] like Figure 1 and Figure 2 As shown, the first actuator 10 , the second actuator 20 , and the third actuator 30 are connected between the floor 100 and the front seat cushion 210 .

[0038] The first actuator 10 may be hinged between the floor 100 and the front bottom surface of the front seat cushion 210 and arranged to be inclined forward and upward or arranged to be vertically upright.

[0039] In this case, the first actuator 10 includes a first cylinder 11, a first piston 12 built into the first cylinder 11 so as to be movable forward and backward, a first motor 13 mounted to the first cylinder 11 to provide a forward and backward driving force to the first piston 12, and a support link 14 branching from the lower part of the first cylinder 11 and hingedly connected to the floor 100.

[0040] Preferably, the lower portion of the first cylinder 11 of the first actuator 10 is fixedly mounted to the supporting link 14 by a method such as welding, and the first piston 12 is hingedly coupled to the front bottom surface of the front seat cushion 210 .

[0041] The second actuator 20 is connected between the floor panel 100 and the first actuator 10 .

[0042] The second actuator 20 includes a second cylinder 21 , a second piston 22 built in the second cylinder 21 to be movable forward and backward, and a second motor 23 mounted to the second cylinder 21 to provide a forward and backward movement driving force to the second piston 22 .

[0043] The second cylinder 21 of the second actuator 20 thus provided has its lower portion hinge-coupled to the floor 100 , and a front end portion of the second piston 22 is hinge-coupled to the first cylinder 11 of the first actuator 10 .

[0044] In this case, unlike the first actuator 10 , the second actuator 20 is arranged to be tilted upward toward the rear.

[0045] The third actuator 30 is connected between the floor panel 100 and the rear bottom surface of the front seat cushion 210 .

[0046] Likewise, the third actuator 30 includes a third cylinder 31 , a third piston 32 built in the third cylinder 31 to be movable forward and backward, and a third motor 33 mounted to the third cylinder 31 to provide forward and backward movement driving force to the third piston 32 .

[0047] Therefore, the lower portion of the third cylinder 31 is hinge-coupled to the floor 100 , and the third piston 32 is hinge-coupled to the rear bottom surface of the front seat cushion 210 .

[0048] In this case, like the second actuator 20 , the third actuator 30 is arranged to be tilted upward toward the rear.

[0049] Although the first to third actuators 10 to 30 are described as conventional electric cylinders having a mechanism for transmitting the driving force of a motor to a piston, it should be noted that a hydraulic cylinder or a pneumatic cylinder that moves the piston forward and backward may alternatively be used.

[0050] Further, a pair of first links 50 are hinged between the floor 100 and the front bottom surface of the rear seat cushion 310, and a pair of second links 60 are hinged between the floor 100 and the rear bottom surface of the rear seat cushion 310 to be arranged to be inclined rearward and upward.

[0051] In this case, the first bracket 71 and the second bracket 72 , which are elongated in the length direction of the vehicle, are fixedly mounted to the floor 100 .

[0052] Therefore, the upper end of the first link 50 is hinged to the front bottom surface of the rear seat cushion 310, and the lower end of the first link 50 is hinged to the front ends of the first bracket 71 and the second bracket 72, and the upper end of the second link 60 is hinged to the rear bottom surface of the rear seat cushion 310, and the lower end of the second link 60 is hinged to the rear ends of the first bracket 71 and the second bracket 72.

[0053] Further, the hinge shaft 62 of the second link 60 , that is, the hinge shaft 62 connected between the lower end portions of the pair of second links 60 , is connected to the fourth actuator 40 to transmit the rotational power to the second link 60 .

[0054] For example, a motor as the fourth actuator 40 is fixedly mounted to the floor, a driving gear 81 is mounted to a shaft of the motor, and a driven gear 82 meshing with the driving gear 81 may be mounted to the hinge shaft 62 of the second link 60 .

[0055] Therefore, the rotational power of the motor as the fourth actuator 40 is transmitted to the driven gear 82 through the driving gear 81 , so that the second link 60 can rotate, and the first link 50 can also rotate together with the rotation of the second link 60 .

[0056] Figure 3 is a control block diagram showing a control module of a seat control system according to the present disclosure.

[0057] The seat control system of the present disclosure is configured to include a control module 400, which is used to sense whether a passenger has sat on a front seat 200 including a front seat cushion 210 and a front seat back 220 and a rear seat 300 including a rear seat cushion 310 and a rear seat back 320, and selectively drive and control one or more of the first actuator 10 to the fourth actuator 40 according to its sensing results to perform height adjustment, reclining adjustment and tilting operations on the front seat 200 and the rear seat 300.

[0058] like Figure 3 As shown, the control module 400 is a sensor for providing passenger seating information and seat posture information to the seat controller 420, and includes: a first passenger sensing sensor 401 (e.g., a front seat passenger sensing sensor), installed to the front seat 200 to sense whether a passenger is seated on the front seat; a first seat posture sensing sensor 403 (e.g., a front seat posture sensor), used to sense the current posture of the front seat 200; a second passenger sensing sensor 402 (e.g., a rear seat passenger sensing sensor), installed to the rear seat 300 to sense whether a passenger is seated on the rear seat; and a second seat posture sensing sensor 404 (e.g., a rear seat posture sensor), used to sense the current posture of the rear seat 300.

[0059] Further, the control module 400 includes a front seat rest mode switch 410 and a rear seat rest mode switch 412 as switches for confirming the passenger's rest mode intention.

[0060] Specifically, the control module 400 includes: a seat controller 420, which is used to selectively drive and control one or more of the first actuator 10 to the fourth actuator 40, so as to perform height adjustment of the front seat 200 and the rear seat 300, tilt adjustment of the seat back, pitch operation of the front seat, etc. based on the sensing signals of the first passenger sensing sensor 401 and the second passenger sensing sensor 402 and the sensing signals of the first seat posture sensing sensor 403 and the second seat posture sensing sensor 404 after receiving the input signals of the front seat rest mode switch 410 and the rear seat rest mode switch 412.

[0061] Preferably, the first passenger sensing sensor 401 and the second passenger sensing sensor 402 may be seat belt wearing sensing sensors called seat belt reminders (SBR) that sense whether seat belts are worn, or human body pressure sensors built into the front seats and rear seats.

[0062] Preferably, the first seat posture sensing sensor 403 and the second seat posture sensing sensor 404 may employ Hall sensors included in the motors of the first to fourth actuators 10 to 40 and Hall sensors included in the motors of conventional reclining devices for reclining the front seat backs and the rear seat backs.

[0063] For reference, a hall sensor is a known sensor mounted to a motor to sense a current rotational drive amount of the motor.

[0064] Therefore, the Hall sensor senses the rotational drive amount of the motor included in the first actuator 10 to the fourth actuator 40 and the rotational drive amount of the motor included in the tilt device, and transmits the rotational drive amount to the seat controller 420, so that the seat controller 420 can confirm information such as the current height, tilt angle, pitch angle, etc. of the front seat and thus know the current posture of the seat.

[0065] Here, the operation flow of the seat control system according to the present disclosure constituted by the above-mentioned configuration will be described as follows.

[0066] Figure 4 is a flowchart illustrating a control process of a seat control system according to the present disclosure.

[0067] First, inputting a front seat resting mode is performed (operation S101 ).

[0068] For example, a passenger sitting on the front seat turns on the front seat rest mode switch 410 .

[0069] Next, it is confirmed whether a passenger is seated on the rear seat (operation S102 ).

[0070] For example, the seat controller 420 confirms whether a passenger has been seated on the rear seat based on the sensing signal of the second passenger sensing sensor 402 .

[0071] As a result of confirming whether the passenger has been seated on the rear seats, if it is confirmed that the passenger has been seated on the rear seats, a rear seat simultaneous resting mode is proposed (operation S103).

[0072] For example, the seat controller 420 displays a message or a sound regarding whether the rear seat rest mode in addition to the front seat rest mode is executed by using a display mounted to a rear surface of the front seat back.

[0073] Next, the seat controller 420 confirms whether the passengers (passengers seated on the rear seats) have agreed to the simultaneous rest mode (operation S104).

[0074] For example, a passenger sitting on a rear seat indicates whether or not to agree through an operation such as touching a display, so that the seat controller 420 can confirm whether or not the passenger has agreed to the simultaneous rest mode.

[0075] If the passengers seated on the rear seats have agreed to the simultaneous rest mode, the seat controller 420 executes the simultaneous rest mode to switch both the front seats and the rear seats to the rest mode posture (operation S105).

[0076] On the other hand, if the passengers seated on the rear seats do not agree to the simultaneous resting mode, the seat controller 420 operates the front seat individual resting mode in a state in which the passengers have been seated on the rear seats (operation S106).

[0077] Further, in operation S102, as a result of confirming whether the passenger is seated on the rear seat, if it is confirmed that the passenger is not seated on the rear seat, the seat controller 420 operates the front seat individual rest mode in a state where the passenger is not seated on the rear seat (operation S107).

[0078] Meanwhile, inputting a rear seat resting mode (operation S201 ) may be performed.

[0079] For example, a passenger seated on the rear seat turns on the rear seat rest mode switch 412 .

[0080] Next, it is confirmed whether a passenger is seated on the front seat (operation S202 ).

[0081] For example, the seat controller 420 confirms whether a passenger has been seated on the front seat based on the sensing signal of the first passenger sensing sensor 401 .

[0082] As a result of confirming whether the passenger has been seated on the front seat, if it is confirmed that the passenger has been seated on the front seat, a simultaneous rest mode is proposed (operation S203).

[0083] For example, the seat controller 420 displays a message or a sound regarding whether the front seat rest mode in addition to the rear seat rest mode is executed by using a display mounted to the cockpit module.

[0084] Next, the seat controller 420 confirms whether the passenger (the passenger seated on the front seat) has agreed to the simultaneous rest mode (operation S204).

[0085] For example, a passenger sitting on the front seat indicates whether or not to agree through an operation such as touching a display, so that the seat controller 420 can confirm whether or not the passenger has agreed to the simultaneous rest mode.

[0086] If the passengers seated on the front seats have agreed to the simultaneous rest mode, the seat controller 420 executes the simultaneous rest mode to switch both the front seats and the rear seats to the rest mode posture (operation S105).

[0087] On the other hand, if the passenger seated on the front seat does not agree to the simultaneous resting mode, the seat controller 420 operates the rear seat individual resting mode in a state in which the passenger has been seated on the front seat (operation S108).

[0088] Further, in operation S202, as a result of confirming whether the passenger is seated on the front seat, if it is confirmed that the passenger is not seated on the front seat, the seat controller 420 operates the rear seat individual rest mode in a state where the passenger is not seated on the front seat (operation S109).

[0089] Here, the seat control and operation process of each rest mode will be described as follows.

[0090] Rest mode at the same time

[0091] Figure 6 The operation trajectories of the front seats and the rear seats in the simultaneous rest mode according to the present disclosure are shown.

[0092] In the front and rear seat simultaneous resting mode, the seat controller 420 simultaneously controls the raising operation of the front seat 200 , the lowering operation of the rear seat 300 , and the rearward tilting operation of the front and rear seat backs 220 and 320 .

[0093] At this time, through the control of the seat controller 420, the front seat 200 is raised by performing the following operations: the first piston 12 of the first actuator 10 moves forward, the second piston 22 of the second actuator 20 moves forward so that the first actuator 10 performs an angular rotation while being pushed backward, and the third piston 32 of the third actuator 30 performs a forward angular rotation while moving forward.

[0094] Further, the unidirectional rotation driving of the fourth actuator 40 is performed by the control of the seat controller 420 , so that while the second link 60 is tilted backward, the first link 50 is tilted backward, thereby lowering the rear seat 300 .

[0095] Further, motors included in the tilting devices of the front seat back 220 and the rear seat back 320 are driven by the control of the seat controller 420 , thereby performing an operation of tilting the front seat back 220 and the rear seat back 320 rearward.

[0096] Therefore, if Figure 6As shown, since a wide space for the passengers sitting on the rear seats 300 to stretch their feet and legs can be ensured, the passengers sitting on the front seats 200 and the rear seats 300 can simultaneously take a resting posture of lying comfortably.

[0097] Front seat individual rest mode (when no passenger is sitting in the rear seat)

[0098] In the front seat individual resting mode in a state where a passenger is not seated on the rear seat, the seat controller 420 controls only the tilting operation of the front seat back 220 .

[0099] like Figure 7 As shown, in a state where a passenger is not seated on the rear seat 300 , a passenger seated on the front seat 200 can take a comfortable resting posture by a rearward tilting operation of the front seat back 220 .

[0100] Front seat individual rest mode (when passengers are seated in the rear seats)

[0101] In the front seat individual resting mode in a state where a passenger has been seated on the rear seat, the seat controller 420 simultaneously controls the raising operation of the front seat 200 , the lowering operation of the rear seat 300 , and the rearward tilting operation of the front seat back 220 .

[0102] At this time, through the control of the seat controller 420, the front seat 200 is raised by performing the following operations: the first piston 12 of the first actuator 10 moves forward, the second piston 22 of the second actuator 20 moves forward so that the first actuator 10 performs an angular rotation while being pushed backward, and the third piston 32 of the third actuator 30 performs a forward angular rotation while moving forward.

[0103] Further, the unidirectional rotation driving of the fourth actuator 40 is performed by the control of the seat controller 420 , so that while the second link 60 is tilted backward, the first link 50 is tilted backward, thereby lowering the rear seat 300 .

[0104] Further, a motor included in the tilting device of the front seat back 220 is driven by the control of the seat controller 420, thereby performing a tilting operation of tilting only the front seat back 220 rearward.

[0105] Therefore, if Figure 8 As shown, even if the front seat back 220 is tilted backward, the interference phenomenon of the front seat back contacting the lower body of the passenger sitting on the rear seat can be prevented because the rear seat 300 is lowered, and further, since the front seat 200 has been raised, a spacious space is ensured for the passengers sitting on the rear seat to stretch their feet and legs.

[0106] Rear seat rest mode (when no passenger is sitting in the front seat)

[0107] In the rear seat individual resting mode in a state where a passenger is not seated on the front seat, the seat controller 420 controls the forward pitching operation of the front seat 200 and the rearward tilting operation of the rear seat back 320 at the same time.

[0108] At this time, through the control of the seat controller 420, the forward pitch of the front seat 200 is performed by performing the following operations: the first piston 12 of the first actuator 10 moves backward, the first actuator 10 is angularly rotated while being pushed forward by the backward movement of the second piston 22 of the second actuator 20, and the third piston 32 of the third actuator 30 is angularly rotated forward while moving forward.

[0109] Further, a motor included in the tilting device of the rear seat back 320 is driven by the control of the seat controller 420 , thereby performing a tilting operation of tilting the rear seat back 320 rearward.

[0110] Therefore, if Fig. 9 As shown, the passengers sitting on the rear seats 300 can take a comfortable resting posture by tilting the rear seat backrest 320 backward, and further, since the front seats 200 are tilted forward, more space can be ensured for the passengers sitting on the rear seats to stretch their feet and legs, thereby taking a more comfortable posture.

[0111] Rear seat single rest mode (when the passenger is already sitting in the front seat)

[0112] In the front seat individual resting mode in a state where a passenger has been seated on the rear seat, the seat controller 420 simultaneously controls the raising operation of the front seat 200 and the rearward tilting operation of the front seat back 320 .

[0113] At this time, through the control of the seat controller 420, the front seat 200 is raised by performing the following operations: the first piston 12 of the first actuator 10 moves forward, the first actuator 10 is angularly rotated while being pushed backward through the forward movement of the second piston 22 of the second actuator 20, and the third piston 32 of the third actuator 30 is angularly rotated forward while moving forward.

[0114] Further, a motor included in the tilting device of the rear seat back 320 is driven by the control of the seat controller 420 , thereby performing a tilting operation of tilting the rear seat back 320 rearward.

[0115] Therefore, if Fig.10As shown, the passengers sitting on the rear seats 300 can take a comfortable resting posture by tilting the rear seat backrest 320 backward, and further, since the front seats 200 are raised, more space can be ensured for the passengers sitting on the rear seats to stretch their feet and legs, thereby taking a more comfortable posture.

[0116] Figure 5 is a flowchart illustrating another control process of the seat control system according to the present disclosure.

[0117] If the vehicle arrives at the destination while the front and rear seats have been in the simultaneous resting mode, the front seat individual seat resting mode, the rear seat individual seat resting mode, etc. as described above during vehicle travel, the seat controller 420 outputs a destination arrival alarm.

[0118] For example, if the seat controller 420 receives destination arrival information of the vehicle from the navigation device, the seat controller 420 outputs a destination arrival alarm.

[0119] Then, the seat controller 420 may perform control to return the front seat 200 and the rear seat 300 from their respective rest mode postures to the positions shown in FIG. Figure 2 The front seat 200 and the rear seat 300 are shown in their original postures, so that the passengers change from a sleeping state to a waking state.

[0120] Refer again Figure 3 , the seat controller 420 may include a CPU such as a processor or a microprocessor and a memory. The above operations / functions performed by the seat controller may be implemented as computer-readable code / algorithms / software stored in a memory that may include a computer-readable recording medium. A computer-readable recording medium is any data storage device that can store data that can be read by the CPU thereafter. Examples of computer-readable recording media include hard disk drives (HDDs), solid-state drives (SSDs), silicon disk drives (SDDs), read-only memories (ROMs), random access memories (RAMs), CD-ROMs, magnetic tapes, floppy disks, optical data storage devices, and the like. The CPU may perform the above operations / functions by running computer-readable code / algorithms / software stored on computer-readable recording media.

[0121] Although the present disclosure has been described with reference to the specific embodiments shown in the accompanying drawings, it will be apparent to those skilled in the art that the present disclosure may be changed and modified in various ways without departing from the scope of the disclosure described in the appended claims.

Claims

1. The vehicle's seat control system, including: A first actuator is hinged between the floor and the front bottom surface of the front seat cushion; a second actuator hinged between the floor and the first actuator; a third actuator connected between a rear bottom surface of the front seat cushion and the floor; a first link hinged between the floor and a front bottom surface of a rear seat cushion; a second link hinged between the floor and a rear bottom surface of the rear seat cushion; a fourth actuator connected to the hinge shaft of the second link to transmit rotational power to the hinge shaft of the second link; as well as a control module for sensing whether a passenger has sat on the front seat and the rear seat, and driving and controlling one or more of the first to fourth actuators to perform height adjustment, tilt adjustment, or pitch operation on one or more of the front seat and the rear seat according to the sensing result, Wherein, the second actuator comprises: a second cylinder hingedly coupled to the floor; a second piston built into the second cylinder to be movable forward and backward and hinge-coupled to the first cylinder of the first actuator; and A second motor is mounted to the second cylinder block to provide a forward and backward moving driving force to the second piston.

2. The seat control system according to claim 1, wherein: The first actuator includes: the first cylinder body; a first piston built into the first cylinder body so as to be movable forward and backward and hingedly connected to the front bottom surface of the front seat cushion; a first motor mounted to the first cylinder body to provide a forward and backward moving driving force to the first piston; and a supporting link branched from a lower portion of the first cylinder body so as to be hingedly connected to the floor.

3. The seat control system according to claim 1, wherein: The third actuator includes: a third cylinder body hinged to the floor; a third piston built into the third cylinder body so as to be movable forward and backward and hinged to the rear bottom surface of the front seat cushion; and a third motor mounted to the third cylinder body to provide forward and backward movement driving force to the third piston.

4. The seat control system according to claim 1, wherein: The fourth actuator employs a motor mounted to the floor to transmit the rotational power to the hinge shaft of the second link.

5. The seat control system according to claim 1, wherein: The control module comprises: a first passenger sensing sensor mounted to the front seat to sense whether a first passenger has been seated on the front seat; a first seat posture sensing sensor, used for sensing a current posture of the front seat; a second passenger sensing sensor mounted to the rear seat to sense whether a second passenger has been seated on the rear seat; A second seat posture sensing sensor, configured to sense a current posture of the rear seat; and A seat controller for driving and controlling one or more of the first actuator to the fourth actuator based on sensing signals of the first passenger sensing sensor and the second passenger sensing sensor and sensing signals of the first seat posture sensing sensor and the second seat posture sensing sensor to perform the height adjustment, the tilt adjustment and the pitch operation on one or more of the front seats and the rear seats.

6. The seat control system according to claim 5, wherein: After receiving input signals from the front seat rest mode switch and the rear seat rest mode switch, the seat controller drives and controls one or more of the first actuator to the fourth actuator based on the sensing signals of the first passenger sensing sensor and the second passenger sensing sensor and the sensing signals of the first seat posture sensing sensor and the second seat posture sensing sensor to perform height adjustment, tilt adjustment and pitch operation on one or more of the front seats and the rear seats.

7. The seat control system according to claim 5, wherein: The first passenger sensing sensor and the second passenger sensing sensor employ seat belt wearing sensing sensors that sense whether a seat belt is worn.

8. The seat control system according to claim 5, wherein: The first seat posture sensing sensor and the second seat posture sensing sensor employ hall sensors included in motors of the first to fourth actuators.

9. The seat control system according to claim 1, wherein: The control module comprises: a first passenger sensing sensor mounted to the front seat to sense whether a first passenger has been seated on the front seat; a first seat posture sensing sensor, used for sensing a current posture of the front seat; a second passenger sensing sensor mounted to the rear seat to sense whether a second passenger has been seated on the rear seat; A second seat posture sensing sensor, configured to sense a current posture of the rear seat; and a seat controller for driving and controlling one or more of the first to fourth actuators based on sensing signals of the first passenger sensing sensor and the second passenger sensing sensor and sensing signals of the first seat posture sensing sensor and the second seat posture sensing sensor to perform the height adjustment, the tilt adjustment, and the pitch operation on one or more of the front seats and the rear seats, Wherein, in the simultaneous rest mode of the front seats and the rear seats, the seat controller is configured as follows: controlling the following operations to raise the front seat: the first piston of the first actuator moves forward, the first actuator is angularly rotated while being pushed backward by the forward movement of the second piston of the second actuator, and the third piston of the third actuator is angularly rotated forward while moving forward, controlling the unidirectional rotational drive of the fourth actuator so that the first link is tilted rearward while the second link is tilted rearward to lower the rear seat, and A tilt operation of a front seat back of the front seat and a rear seat back of the rear seat are controlled.

10. The seat control system according to claim 1, wherein: The control module comprises: a first passenger sensing sensor mounted to the front seat to sense whether a first passenger has been seated on the front seat; a first seat posture sensing sensor, used for sensing a current posture of the front seat; a second passenger sensing sensor mounted to the rear seat to sense whether a second passenger has been seated on the rear seat; A second seat posture sensing sensor, configured to sense a current posture of the rear seat; and a seat controller for driving and controlling one or more of the first to fourth actuators based on sensing signals of the first passenger sensing sensor and the second passenger sensing sensor and sensing signals of the first seat posture sensing sensor and the second seat posture sensing sensor to perform the height adjustment, the tilt adjustment, and the pitch operation on one or more of the front seats and the rear seats, Wherein, in the front seat individual resting mode in a state where the second passenger is not seated on the rear seat, the seat controller controls only the tilting operation of the front seat back of the front seat.

11. The seat control system according to claim 1, wherein: The control module comprises: a first passenger sensing sensor mounted to the front seat to sense whether a first passenger has been seated on the front seat; a first seat posture sensing sensor, used for sensing a current posture of the front seat; a second passenger sensing sensor mounted to the rear seat to sense whether a second passenger has been seated on the rear seat; A second seat posture sensing sensor, configured to sense a current posture of the rear seat; and a seat controller for driving and controlling one or more of the first to fourth actuators based on sensing signals of the first passenger sensing sensor and the second passenger sensing sensor and sensing signals of the first seat posture sensing sensor and the second seat posture sensing sensor to perform the height adjustment, the tilt adjustment, and the pitch operation on one or more of the front seats and the rear seats, Wherein, in the front seat individual rest mode in a state where the second passenger has been seated on the rear seat, the seat controller is configured as follows: controlling the following operations to raise the front seat: the first piston of the first actuator moves forward, the first actuator is angularly rotated while being pushed backward by the forward movement of the second piston of the second actuator, and the third piston of the third actuator is angularly rotated forward while moving forward, controlling a reclining operation of a front seat backrest of the front seat, and The unidirectional rotational drive of the fourth actuator is controlled so that the first link is tilted rearward while the second link is tilted rearward, so as to lower the rear seat.

12. The seat control system according to claim 1, wherein: The control module comprises: a first passenger sensing sensor mounted to the front seat to sense whether a first passenger has been seated on the front seat; a first seat posture sensing sensor, used for sensing a current posture of the front seat; a second passenger sensing sensor mounted to the rear seat to sense whether a second passenger has been seated on the rear seat; A second seat posture sensing sensor, configured to sense a current posture of the rear seat; and a seat controller for driving and controlling one or more of the first to fourth actuators based on sensing signals of the first passenger sensing sensor and the second passenger sensing sensor and sensing signals of the first seat posture sensing sensor and the second seat posture sensing sensor to perform the height adjustment, the tilt adjustment, and the pitch operation on one or more of the front seats and the rear seats, Wherein, in the rear seat individual rest mode when the first passenger is not seated on the front seat, the seat controller is configured as follows: controlling the following operations to tilt the front seat forward: the first piston of the first actuator moves backward, the first actuator is angularly rotated while being pushed forward by the backward movement of the second piston of the second actuator, and the third piston of the third actuator is angularly rotated forward while moving forward, and A reclining operation of a rear seat back of the rear seat is controlled.

13. The seat control system according to claim 1, wherein: The control module comprises: a first passenger sensing sensor mounted to the front seat to sense whether a first passenger has been seated on the front seat; a first seat posture sensing sensor, used for sensing a current posture of the front seat; a second passenger sensing sensor mounted to the rear seat to sense whether a second passenger has been seated on the rear seat; A second seat posture sensing sensor, configured to sense a current posture of the rear seat; and a seat controller for driving and controlling one or more of the first to fourth actuators based on sensing signals of the first passenger sensing sensor and the second passenger sensing sensor and sensing signals of the first seat posture sensing sensor and the second seat posture sensing sensor to perform the height adjustment, the tilt adjustment, and the pitch operation on one or more of the front seats and the rear seats, Wherein, in the rear seat individual rest mode in a state where the first passenger has been seated on the front seat, the seat controller is configured as follows: controlling the following operations to raise the front seat: the first piston of the first actuator moves forward, the first actuator is angularly rotated while being pushed backward by the forward movement of the second piston of the second actuator, and the third piston of the third actuator is angularly rotated forward while moving forward, and A reclining operation of a rear seat back of the rear seat is controlled.

14. The seat control system according to claim 1, wherein The control module comprises: a first passenger sensing sensor mounted to the front seat to sense whether a first passenger has been seated on the front seat; a first seat posture sensing sensor, used for sensing a current posture of the front seat; a second passenger sensing sensor mounted to the rear seat to sense whether a second passenger has been seated on the rear seat; a second seat posture sensing sensor, used for sensing a current posture of the rear seat; as well as a seat controller for driving and controlling one or more of the first to fourth actuators based on sensing signals of the first passenger sensing sensor and the second passenger sensing sensor and sensing signals of the first seat posture sensing sensor and the second seat posture sensing sensor to perform the height adjustment, the tilt adjustment, and the pitch operation on one or more of the front seats and the rear seats, wherein the seat controller performs control to return the front seats and the rear seats from the rest mode posture to the original posture upon receiving destination arrival information of the vehicle.

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