KR20200084609A - Rotating seat for vehicle and control method thereof - Google Patents

Abstract

According to an embodiment of the present invention, a rotating seat for a vehicle includes: a seat on which a user can sit; a tilting shaft capable of tilting the seat; a moving rail capable of moving the seat in a forward and backward direction; and a rotating plate capable of rotating the seat. The rotating seat for a vehicle further includes: a backrest sensor which is installed on the tilting shaft to detect a tilting angle of the seat; a long slide sensor installed on the moving rail to detect a position of the seat before and after movement thereof; a rotating sensor installed on the rotating plate to detect a rotating angle of the seat; and a controller for controlling the rotation of the seat. The controller determines whether the seat is positioned at a rotatable position on the basis of information detected by the backrest sensor and the long slide sensor, and performs control so that the rotating plate is rotated when the seat is positioned at the rotatable position.

Description

Rotating seat for vehicle and control method thereof

The present invention relates to a rotating seat for a vehicle and a control method therefor.

In general, a vehicle seat can be installed so that a plurality of rows form a row in the front-rear direction of the vehicle. Such a vehicle seat can be moved in the front-rear direction, and the angle can be adjusted so that the backrest is tilted.

In addition, the conventional vehicle seat has a disadvantage in that it cannot be rotated 180 degrees in a clockwise or counterclockwise direction except for some vehicles, making it difficult to utilize various spaces inside the vehicle.

Recently, as the development and research of autonomous vehicles, etc. have been actively conducted, various vehicle rotating seat technologies for rotating the seat inside the vehicle including the driver's seat have been disclosed to utilize the interior space of the vehicle.

Prior literature information related to this is as follows.

KR10-1826513 B1, Motorized seat rotating device for vehicles

An object of the present invention is to provide a vehicle rotation seat and a control method for the vehicle that can automatically and conveniently rotate the vehicle seat.

Another object of the present invention is to provide a vehicle rotating seat that can stably rotate a seat using information sensed from a plurality of sensors and a control method thereof.

Another object of the present invention is to provide an advanced vehicle rotating seat and a control method thereof that can satisfy a user's emotional aspects.

In order to achieve the above object, a vehicle rotating seat according to an embodiment of the present invention includes a seat on which a user can sit, a tilting shaft capable of tilting the seat, a moving rail capable of moving the seat forward and backward, and A rotating seat for a vehicle including a rotating plate capable of rotating the seat, comprising: a backrest sensor installed on the tilting shaft to detect a tilting angle of the seat; A long slide sensor installed on the moving rail to detect a front and rear moving position of the seat; A rotation sensor installed on the rotating plate to detect a rotation angle of the sheet; And a controller that controls the rotational motion of the seat, wherein the controller determines whether the seat is located in a rotatable position based on information sensed by the backrest sensor and the long slide sensor, and the rotatable position. When the seat is located, it is characterized in that the rotating plate is controlled to rotate.

In addition, the target metal is further coupled to the tilting axis so as to be spaced apart by a predetermined distance (d) from the backrest sensor, the backrest sensor tilting angle of the sheet by the target metal rotating with the tilting axis It is characterized by sensing.

In addition, further comprising a rail target metal coupled to the moving rail to be spaced a predetermined distance (d) from the long slide sensor, the long slide sensor is moved by the rail target metal to move back and forth with the moving rail. It is characterized in that it detects the front and rear movement position of the sheet.

In addition, it is provided in the center of the rotating plate, a rotating shaft that maintains a fixed position independent of the rotation of the rotating plate; And a rotating target metal coupled to the rotating plate so as to be spaced apart from the rotating sensor by a predetermined distance (d), wherein the rotating sensor is coupled to the rotating shaft and is rotated by the rotating target metal rotating together with the rotating plate. It is characterized by sensing the rotation angle of the sheet.

In addition, it further comprises a rotary motor connected to the rotating plate to provide a driving force to rotate the rotating plate, wherein the controller is characterized in that to control the acceleration to be variable in the section where the output of the rotating motor rises or falls.

In addition, the rotating motor may include a brushless (BLDC) motor.

In addition, the controller is characterized in that for controlling the output of the rotating motor based on the rotation angle detected by the rotation sensor.

In addition, the controller, when the seat is out of the rotatable position, to control the front and rear motors installed on the moving rail and the inclined motor installed on the tilting shaft to move the seat to the rotatable position Is done.

In addition, further comprising a diagnostic device for managing the state of the vehicle based on information detected from a plurality of sensors installed in the vehicle, the plurality of sensors, door detection sensor, parking detection sensor and at least any one of the speed detection sensor It can contain one.

In addition, the controller may include a communication module capable of transmitting and receiving information to and from the diagnostic device.

In another aspect, a method of controlling a rotating seat for a vehicle according to an embodiment of the present invention includes: checking initial conditions for rotating a seat installed inside the vehicle; Determining whether the seat is positioned in a rotatable position based on information detected by a backrest sensor that senses the tilting angle of the seat and a long slide sensor that detects a front and rear movement position of the seat; A controller safety mode execution step of sensing a state of a controller that controls rotation of the seat; The step of releasing the restraint of the rotating plate provided on the sheet; Operating a rotating motor connected to the rotating plate; Damping control is performed to control the output of the rotating motor by pulse width modulation (PWM) according to the rotation angle of the sheet according to the operation of the rotating motor; And determining whether the sheet has been completely rotated, and restraining the rotating plate again.

In addition, the damping control is characterized in that the damping start section in which the output of the rotating motor rises from 0 V to a preset maximum output and a damping stop section in which the output of the rotating motor descends from the preset maximum output to OV. Is done.

In addition, the controller, characterized in that for performing the pulse width modulation (PWM) control to vary the duty ratio (duty ratio) in the damping start section and the damping stop section.

In addition, the controller is characterized in that the duty ratio in the damping start section is controlled to gradually increase with the passage of time, and the duty ratio in the damping stop section is controlled to gradually decrease with the passage of time.

In addition, the controller, characterized in that to vary the rotational acceleration of the rotating motor in the damping start section and the damping stop section.

In addition, determining whether it is located in the rotatable position comprises: detecting a current tilting angle of the seat from the backrest sensor; Detecting a current moving position of the sheet from the long slide sensor; And determining whether the current tilting angle and the current moving position satisfy a preset range.

In addition, the controller is characterized in that when the current tilting angle and the current movement position is out of a preset range, the seat is rotated or moved to satisfy the preset range.

In addition, the controller safety mode execution step, determining whether the input current of the controller and the rate of change of the rotational speed of the seat satisfies a preset safety condition; And a stall condition sensing step for sensing the overcurrent of the rotating motor, wherein the controller stops the rotating motor when the stall condition is detected.

In addition, when the safety condition is not satisfied or the stall condition is detected, the controller controls the output to be output to the output unit, and transmits related information to the vehicle diagnostic apparatus.

In addition, the step of checking the initial conditions includes at least one of a door detection sensor detecting whether the vehicle is open, a parking detection sensor detecting whether the vehicle is parked, and a speed detection sensor detecting whether the vehicle is stopped. Characterized in that the judgment based on the information detected from.

According to the present invention, it is possible to improve user convenience because it is controlled to automatically determine the rotatable position and perform and perform stable rotation using the position or angle information of the sheet sensed from a plurality of sensors provided in the seat. .

According to the present invention, safety can be improved by confirming various initial conditions before performing rotation of the sheet.

According to the present invention, when a problem occurs in the seat, it is possible to record and display the details through communication with the vehicle diagnostic apparatus, thereby providing an integrated management of the vehicle.

According to the present invention, it is possible to determine whether a rotatable position of the rotating sheet is provided based on the position of the current sheet and the angle of the current sheet, and provides it to the user.

According to the present invention, the safety mode of the controller for controlling the rotation of the sheet is provided, so that the rotation of the sheet can be performed more safely. That is, product reliability can be improved.

According to the present invention, by performing damping control in a predetermined section to perform operation and stop of the rotating motor, the seat can smoothly start and end rotation. Therefore, it is possible to improve the emotional satisfaction of the user, and there is an advantage to improve the product.

1 is a view schematically showing the configuration of a vehicle rotating seat according to an embodiment of the present invention
2 is a block diagram showing a control configuration of a vehicle rotating seat according to an embodiment of the present invention
3 is a view showing the configuration and detection principle of the backrest sensor according to an embodiment of the present invention
4 is a view showing a connection relationship between a rotating plate and a rotating sensor according to an embodiment of the present invention
5 is a view showing a connection relationship between a moving rail and a long slide sensor according to an embodiment of the present invention
Figure 6 is a flow chart showing a control method for the rotation of the rotating seat for a vehicle according to an embodiment of the present invention
7 is a flow chart showing a detailed control method of the initial condition check (S10) step of FIG.
8 is a flow chart showing a detailed control method of the rotation (S20) step of FIG.
9 is a flow chart showing a detailed control method of the rotatable position determination (S100) of FIG.
FIG. 10 is a flow chart showing a detailed control method of the controller safety mode execution (S200) step of FIG. 8.
11 is a timing chart showing damping control according to an embodiment of the present invention
12 is a graph comparing motor speed versus time in the damping start section A of FIG. 11;

Hereinafter, some embodiments of the present invention will be described in detail through exemplary drawings. It should be noted that in adding reference numerals to the components of each drawing, the same components have the same reference numerals as possible, even if they are displayed on different drawings. In addition, in describing embodiments of the present invention, when it is determined that detailed descriptions of related well-known configurations or functions interfere with understanding of the embodiments of the present invention, detailed descriptions thereof will be omitted.

In addition, in describing the components of the embodiments of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only for distinguishing the component from other components, and the nature, order, or order of the component is not limited by the term. When a component is described as being "connected", "coupled" or "connected" to another component, the component may be directly connected to or connected to the other component, but another component between each component It should be understood that may be "connected", "coupled" or "connected".

1 is a view schematically showing a configuration of a vehicle rotating seat according to an embodiment of the present invention, and FIG. 2 is a block diagram showing a control configuration of a vehicle rotating seat according to an embodiment of the present invention.

1 and 2, the vehicle rotary seat 1 according to an embodiment of the present invention, the seat 30, which allows the user to sit on his back, the movement to guide the front and rear direction movement of the seat 30 The rail 20 and the seat 30 may include a rotating plate 50 capable of rotating clockwise or counterclockwise.

The moving rail 20 may be coupled to the floor inside the vehicle. In addition, the moving rails 20 may be provided as a pair so as to be located at the bottom of both sides of the seat 30, respectively.

The moving rail 20 may be combined with a support plate (not shown) for fixing the seat 30 and the rotating plate 50. Here, the support plate (not shown) may be formed of a frame of a square flat plate shape. For example, the support plate (not shown) may be provided in a pair to connect the front end or the rear end of the pair of moving rails 20, respectively.

The pair of moving rails 20 and the support plate (not shown) may be stably coupled to the vehicle floor in general. Therefore, the configuration of the pair of moving rails 20 and the support plate (not shown) coupled to the upper side of the rotating plate 50 and the seat 30 can be stably supported.

The seat 30 may be provided with a body to which a plurality of frames are connected and a cover to cover the body so that the user can sit down. In one example, the cover may be formed of leather.

The moving rail 20 may be connected to the lower end of the seat 30. Therefore, the moving rail 20 can guide the front and rear movement of the seat 30. For example, the pair of moving rails 20 may be positioned to correspond to the lower frames on both sides of the seat 30, respectively.

The rotating plate 50 may be provided as a rotating means for rotating the sheet 30. That is, the rotating plate 50 may be provided to be rotatable to rotate the sheet 30. For example, the rotating plate 50 may be installed in the lower inner portion of the seat 30 or in the center of the lower portion of the seat 30.

The rotating plate 50 may include an upper and lower fixing plate (not shown) that guides the seat 30 and the coupling and supports to be rotatably connected to the moving rail 20.

The upper and lower fixing plates may be located on upper and lower portions of the rotating plate 50, respectively.

The upper and lower fixing plates (not shown) may be formed as annular plates.

Specifically, the upper and lower fixing plates (not shown) located at the lower portion of the rotating plate 50 may be combined with the moving rail 20 and/or the above-described supporting plate (not shown). In addition, the upper and lower fixing plates positioned at the lower portion can be understood as fixing portions independent of rotation of the rotating plate 50. Therefore, the upper and lower fixing plates located at the lower portion of the rotating plate 50 can guide the seat 30 to move together according to the front and rear movement of the moving rail 20.

And the upper and lower fixing plates located on the upper portion of the rotating plate 50 may be coupled to the inner frame forming the seating portion of the seat 30 upward. And it can be understood that the upper and lower fixing plates located at the upper portion are rotational parts dependent on the rotation of the rotating plate 50. Therefore, since the upper and lower fixing plates located on the upper part rotate according to the operation of the rotary motor 55 to be described later, the seat 30 can be guided to rotate together.

In addition, the rotating plate 50 may further include a plurality of bearings to maintain a stable connection with the seat 30 or the moving rail 20.

The seat 30 may include a seating portion where the user sits and a backrest portion that reclines the back while the user is sitting. The seating portion and the backrest portion may be integrally formed.

Here, the backrest portion may be provided to adjust the inclination angle according to the user's operation.

That is, the sheet 30 may be provided to allow tilting.

In addition, the seat 30 may further include a tilting shaft 35 for tilting. In one example, the tilting shaft 25 may be positioned so as to protrude in one direction of a connecting portion to which the seating portion and the backrest portion are connected.

In addition, the tilting shaft 25 may be rotatably provided so that the inclination angle of the backrest portion is adjusted stepwise from the seating portion.

Meanwhile, the vehicle rotating seat 1 may further include a backrest sensor 100 capable of detecting a tilting or inclination angle of the seat 30.

The backrest sensor 100 may detect the tilting angle of the seat 30. In detail, the backrest sensor 100 may detect the angle rotated from the reference position of the seat 30 provided to be tiltable and transmit it to the controller 300 to be described later.

That is, the backrest sensor 100 may detect the position of the backrest portion of the seat 30. According to this, it is possible to prevent the problem of causing interference when the seat 30 is rotated because the angle of the backrest of the seat 30 is outside the allowable angle for rotation.

The backrest sensor 100 may be installed at a side end of the seat 30. In detail, the backrest sensor 100 may be positioned to correspond to the tilting shaft 25. For example, the backrest sensor 100 may be installed to be connected to the tilting shaft 25 on one side of a connection portion to which the seating portion and the backrest portion are connected.

That is, the backrest sensor 100 may be combined with the tilting shaft 25. For example, the tilting shaft 25 may be positioned at the center of the backrest sensor 100. Detailed description of the related backrest sensor 100 will be described later in FIG. 3.

In addition, the vehicle rotating seat 1 may further include a long slide sensor 200 capable of detecting a position moved in the front-rear direction of the seat 30.

The long slide sensor 200 may detect whether the seat 30 moves in the front-rear direction. In addition, the long slide sensor 200 may detect the distance from the reference position when the seat 30 is moved forward or backward. In addition, the long slide sensor 200 may transmit detection information to the controller 300 to be described later.

That is, the long slide sensor 200 may detect the position of the seating portion of the seat 30. In detail, the long slide sensor 200 may detect how much the seating portion of the seat 30 moved by the moving rail 20 moves forward or backward. According to this, it is possible to prevent the problem of causing interference when rotating the seating portion of the seat 30 outside the allowable position for rotation.

The long slide sensor 200 may be installed on the moving rail 20. For example, the long slide sensor 200 may be installed to be spaced outward by a predetermined distance d along the side end of the moving rail 20. In more detail, the long slide sensor 200 may be combined with a fixed portion of the moving rail 20.

Here, the fixed portion of the moving rail 20 is coupled to the floor of the vehicle, it can be understood that the fixed portion without moving even in the front-rear movement operation of the moving rail 20. Therefore, the long slide sensor 200 can detect how much the moving rail 20 has moved relatively from the reference position by maintaining a fixed state even during the moving operation of the moving rail 20. The detailed description of the long slide sensor 200 will be described later in the description of FIG. 5.

The backrest sensor 100 and the long slide sensor 200 may detect a position relatively moved from a reference position of the seat 30. In detail, the backrest sensor 100 detects a rotation angle from a reference position of the backrest part, and the long slide sensor 200 detects a moving distance forward or backward from a reference position of the seating part. That is, the detected rotation angle and the moving distance can be understood as the current angle and the current position of the sheet 30.

In addition, the controller 300, which will be described later, may determine whether the current angle and the current position of the seat 30 satisfy a position condition. Here, the position condition is defined by the angle and position of the preset seat 30, in which rotation of the seat 30 can be performed without interference by other objects.

In addition, the position condition may be set in advance according to a vehicle design condition such as the size of the vehicle and the installation position of the seat 30 and stored in the internal memory (not shown) of the controller 300.

The position condition may be set to a range. Therefore, the reference position of the above-described seat 30 may be included in the position condition. In one example, the position condition may be set to an allowable forward and backward movement distance and an allowable rotation angle based on the reference position.

According to this, since the vehicle seat 1 is controlled to perform a rotational operation when the position condition is satisfied, a problem that may be caused by interference by other objects in the vehicle can be prevented.

Meanwhile, a position in which the seat 30 is disposed toward the front of the vehicle may be referred to as a normal position. In addition, a position rotated 180 degrees from the normal position may be referred to as a reverse position.

That is, the seat 30 may be rotated from the normal position to the river position or from the river position to the normal position by the rotating plate 50.

Therefore, the position condition can be determined not only in the normal position, but also in the river position.

The vehicle rotating seat 1 may further include a rotation sensor 500 capable of detecting the rotational position of the seat 30.

The rotation sensor 500 may detect the rotational position of the rotation plate 50. As a result, the rotation sensor 500 can detect the rotational position of the seat 30.

Here, the rotational position of the sheet 30 may be provided at a rotational angle of a position rotated by a degree from a reference position (or point) of the rotation plate 50.

In detail, the rotation sensor 500 may detect the rotation angle from the reference position (or reference point) of the rotating plate 50 and transmit it to the controller 300 to be described later. Accordingly, the controller 300 may determine the rotation state of the seat 30 based on the rotation angle information detected from the rotation sensor 500 and control the rotation speed of the seat 30.

According to this, it is possible to detect the start and end of rotation of the seat 30. In addition, when the seat 30 is rotating, it is possible to detect a rotation angle of how much it has rotated from the reference position.

In addition, since the rotation sensor 500 can sense the rotational position of the seat 30, the controller 300 controls the output of the rotation motor 55 to be described later according to the rotation angle of the seat 30. can do. Therefore, by controlling the output of the rotating motor 55 in the rotation start and rotation end section of the seat 30, it is possible to provide a smooth and high-quality rotation to the user.

The rotation sensor 500 may be installed at the center of the rotation plate 50. In detail, the rotation sensor 500 may be combined with a rotation axis 55 which is a central axis of the rotation plate 50. In addition, the rotation sensor 500 may sense the rotation angle of the rotating plate 50 rotating clockwise or counterclockwise based on the rotating shaft 55.

The rotation sensor 500 may be provided so that the rotation shaft 55 inserts and penetrates the center. The detailed description of the related backrest sensor 100 will be described later in FIG. 4.

Meanwhile, the vehicle rotating seat 1 may further include an input switch 60 capable of providing an input signal according to a user's operation.

The input switch 60 may include an electronic button, a touch type display, and the like. For example, when a user performs an operation such as pressing or touching the input switch 60, the input switch 60 may generate an input signal and provide it to the controller 300.

In addition, the input switch 60 is an emergency signal, such as when the seat 30 is rotating, an object is caught, an emergency signal is sent to the controller 300 so that the rotation of the seat 30 can be stopped immediately. Can provide.

The vehicle rotating seat 1 may further include a power module 80 that provides power. The power module 80 may be electrically connected to the controller 300. In addition, the power module 80 may supply power to the controller 300.

The vehicle rotating seat 1 may further include a controller 300 for controlling the operation of the seat 30.

The operation of the seat 30 may include forward and backward movement, tilting and rotation. That is, the controller 300 may control at least one of the forward and backward movement, the rotation angle, and the rotation angle of the seat 30.

In detail, the controller 300 processes signals or information input from the input switch 60, the backrest sensor 100, the long slide sensor 200, and the rotation sensor 500, and the seat 30 ) To provide a control signal for controlling the operation. In one example, the controller 300 may control the forward and backward movement, the rotation angle and the rotation angle of the seat 30 by transmitting a control signal to the driving unit (28,38,55).

The controller 300 may include microcontrollers 310 and MCUs for processing input signals or input information.

The microcontroller 310 calculates, judges, and processes information input from the input switch 60, the backrest sensor 100, the long slide sensor 200, and the rotation sensor 500 using logic. Can.

In addition, the controller 300 may further include a motor driver 320 for controlling the driving units 28, 38 and 55.

The motor driver 320 may be provided to control each of the motors constituting the driving units 28, 38, and 55. That is, the motor driver 320 may provide a current and a signal suitable for each motor of the driving units 28, 38 and 55.

The motor driver 320 may include a gate driver and a FET drive stage.

The vehicle rotating seat 1 may further include driving units 28, 38, and 55.

The driving unit may include a rotating motor 55 for rotating the seat 30.

The rotating motor 55 may be installed on the rotating plate 50. In addition, the rotating motor 55 may provide a driving force so that the rotating plate 50 is rotated.

The rotary motor 55 may operate by a control signal received from the controller 300. For example, the controller 300 may control the output of the rotating motor 55 to be variable based on the position of the rotating plate 50 received from the rotating sensor 500.

The rotating motor 55 may include a brushless (BLDC) motor.

When the rotary motor 55 is provided as a brushless motor, the motor driver 320 of the controller 300 may utilize the electrical characteristics of the motor to estimate the position of the magnet internally and control the speed.

That is, the controller 300 can operate the rotary motor 55 through sensorless control.

Accordingly, when the rotary motor 55 is provided as a brushless motor, the controller 300 may control the operation through the sensorless control when the hall sensor of the rotary motor 55 fails.

The rotating plate 50 may rotate clockwise (forward rotation) or counterclockwise (reverse rotation) by the operation of the rotating motor 55. Thereby, the seat 30 can be rotated from the normal position or the river position.

In addition, the driving unit may further include a front and rear motor 28 for moving the seat 30 in the front-rear direction and an inclined motor 38 for tilting the seat 30.

The front-rear motor 28 may be installed on the moving rail 20. In addition, the front-rear motor 28 may provide a driving force so that the moving rail 20 moves in the front-rear direction.

The front-rear motor 28 may operate by a control signal received from the controller 300. For example, the controller 300 may control the front and rear motors 28 to rotate forward, thereby moving the moving rail 20 forward. In addition, the controller 300 may control the front and rear motors 28 to rotate in reverse, so that the moving rail 20 may be moved backward.

That is, by the operation of the front-rear motor 38, the seat 30 may be moved forward or backward.

The inclined motor 38 may be installed on the seat 30. For example, the inclined motor 38 may be installed on the back portion of the seat 30.

The inclined motor 38 may be combined with the tilting shaft 35. Therefore, the backrest portion can be rotated by the operation of the inclined motor 38. That is, the inclined motor 38 may provide a driving force so that the seat 30 is tilted.

The inclined motor 38 may be operated by a control signal received from the controller 300. In one example, the controller 300 can control the degree of tilting, that is, the rotation angle described above, by controlling the inclined motor 38 to rotate forward or reverse.

The vehicle rotating seat 1 may further include a locking actuator 70 capable of restraining rotation of the seat 30.

The locking actuator 70 may be understood as a device capable of restraining the operation of the rotating plate 50. In one example, the locking actuator 70 may be operated by a control signal of the controller 300.

The locking actuator 70 may include a motor, gear, cover case, and gear projection driven by an electrical signal. In one example, the locking actuator 70 may move the rotating plate 50 in the vertical direction to constrain the rotating plate 50 from rotating, or release the restriction to perform rotation.

The vehicle rotating seat 1 may further include an output unit 400 capable of providing various information visually or audibly.

The output unit 400 may include a display device capable of outputting various guide messages or guide images. Here, the display device may be disposed in a center fascia of a vehicle. Also, the output unit 400 may include a speaker that outputs a guide message as sound.

The output unit 400 may be controlled according to a signal input from the controller 300.

The vehicle rotating seat 1 may further include a diagnostic device 450 capable of managing the condition of the vehicle, such as a description of an abnormality of the vehicle and the presence or absence of a failure.

However, the diagnostic device 450 is not limited to a function of performing a diagnosis on the vehicle rotating seat 1. That is, the diagnostic device 9450 may perform a function of determining the overall condition of the vehicle, and storing the diagnosis and related contents.

The controller 300 may provide abnormal information of the vehicle rotating seat 1 to the diagnostic device 450. In addition, the controller 300 may control the information received from the diagnostic device 450 to be output to the output unit 400.

Meanwhile, the controller 300 may further include a communication module 330 capable of transmitting and receiving information sensed from a plurality of sensors installed in the vehicle.

The communication module 330 may transmit and receive information with a number of sensors that detect various conditions of the vehicle. For example, the communication module 330 may communicate with a vehicle diagnostic device 450 (GDS) in a high-speed communication (HS-CAN) method.

In detail, a plurality of sensors detecting various states of the vehicle may transmit detection information to the vehicle's diagnostic devices 450 and GDS. In addition, since the diagnostic device 450 is connected to the communication module 330 to enable wired/wireless communication, the controller 300 may provide information detected from the plurality of sensors. Accordingly, the controller 300 may control the rotational operation of the vehicle rotating seat 1 using information sensed by the plurality of sensors.

Here, a plurality of sensors for detecting various states of the vehicle may include a door detection sensor, a parking detection sensor, and a speed detection sensor.

The door detection sensor may be provided as a sensor that detects whether a door of a vehicle is in an open state. In one example, the door detection sensor may be installed between the door and the body of the vehicle.

The parking detection sensor is connected to a vehicle gear to determine whether a user can safely sit on the seat and detect whether the position of the gear is located at P (Parking).

The speed sensor may be connected to an instrument panel for detecting the speed of the vehicle, navigation, and the like. The speed sensor may detect the current speed of the vehicle.

Accordingly, the controller 300 may determine whether the current seat 30 can be rotated by determining whether the vehicle is completely stopped and whether the vehicle is open after determining whether the vehicle is in a parking state.

Meanwhile, the vehicle rotating seat 1 may further include a seating sensor (not shown) that can detect whether a passenger is sitting on the seat 30.

The seating sensor may detect whether a user is sitting on the seat 30 before rotating the seat 30. If the rotating plate 50 performs rotation even when the user sits on the seat 30, there is a concern that a safety accident may occur.

Accordingly, the controller 300 may receive the sensing information from the seating sensor to determine whether the user is seated on the seat 30 and rotate (rotate) the seat 30.

The door detection sensor, parking detection sensor and speed detection sensor may be provided as an ultrasonic sensor, an infrared sensor, and the like to detect a user. Of course, the seating sensor may be provided as a weight sensor.

3 is a view showing the configuration and detection principle of the backrest sensor according to an embodiment of the present invention. In more detail, FIG. 3(a) is a side view of the backrest sensor 100 and the tilting shaft 35 combined, and FIG. 3(b) shows the backrest sensor 100 and the tilting shaft ( 35) This is a plan view looking down from above.

Referring to FIG. 3, the backrest sensor 100 may be formed such that the tilting shaft 35 is inserted or penetrated. For example, the backrest sensor 100 may be formed with a hole through which the tilting shaft 35 passes.

The backrest sensor 100 may be formed in a disk shape extending a predetermined length in a radial direction from a center through which the tilting shaft 35 passes.

The backrest sensor 100 may form a PCB pattern on the upper surface. The PCB pattern may extend along the circumferential direction of the backrest sensor 100. As an example, the PCB pattern may be extended to draw a semicircular arc from 0 to 180 degrees based on the center of the backrest sensor 100.

In addition, a PCB may be provided below the PCB pattern.

The PCB and the PCB pattern may detect the position of the target metal 150 using a change in a magnetic or electric field according to the movement of the target metal 150 to be described later. That is, the backrest sensor 100 may detect a rotation (tilting) angle using electromagnetic induction.

The backrest sensor 100 may further include a target metal 150 coupled to the tilting shaft 35.

The target metal 150 may be coupled to the tilting shaft 35 so as to be spaced a predetermined distance d from the backrest sensor 100. In one example, the predetermined distance (d) may be set to 2mm.

The target metal 150 may be disposed to be parallel to the upper surface of the backrest sensor 100. As an example, the target metal 150 may be formed in a hexahedral shape having a long side extending in one direction.

That is, the target metal 150 may be positioned spaced upward from the upper surface of the backrest sensor 100 by the predetermined distance d. In addition, since the target metal 150 is coupled to the tilting shaft 35, it can rotate together when the tilting shaft 35 is rotated by the operation of the inclined motor 38.

Accordingly, the target metal 150 may rotate in the extending direction (circumferential direction) of the PCB pattern from the upper side of the PCB pattern around the tilting axis 35. (Fig. 3(b) dashed line)

In addition, a change in the induced electric field or the induced magnetic field may occur due to the rotation of the target metal 150. That is, the backrest sensor 100 may detect the position of the target metal 150 through a change in the induction electric field or induction magnetic field. As a result, the backrest sensor 100 can detect the angle at which the target metal 150 rotates from the reference position, so that the rotation angle (or tilting angle) of the seat 30 can be detected.

The sensing principle of the backrest sensor 100, the rotation sensor 500, and the long slide sensor 200 is the same as using a change in electromagnetic induction according to the movement of the target metal. Therefore, the description of the detection principle of the rotation sensor 500 and the long slide sensor 200 may use the description of the detection principle of the backrest sensor 100 described above.

4 is a view showing a connection relationship between a rotating plate and a rotation sensor according to an embodiment of the present invention, and FIG. 5 is a view showing a connection relationship between a moving rail and a long slide sensor according to an embodiment of the present invention.

Referring to FIG. 4, the rotation sensor 500 may be installed on the rotation plate 50.

At the center of the rotating plate 50, a rotating shaft 55, which is a rotating central axis of the rotating plate 50, may be provided. The rotating shaft 55 may be provided as a fixed portion of the rotating plate 55.

In other words. The rotating shaft 55 may maintain a fixed position independently of the rotation of the rotating plate 55.

In addition, since the rotating shaft 55 does not rotate, it can be understood as a configuration of a fixed portion of the rotating plate 50. In one example, the rotating shaft 55 may be combined with the upper and lower fixing plates positioned below the rotating plate 55.

Further, the rotation shaft 55 may be positioned to be inserted and/or penetrated into the center of the rotation sensor 500. In addition, the rotation sensor 500 may be coupled to the rotation shaft 55. Therefore, the rotation sensor 500 can also maintain a fixed position independently of the rotation of the rotation plate 50.

The rotating plate 50 may be connected to the rotating motor 55 to rotate around the rotating shaft 55. For example, the rotary motor 55 may be coupled to a rotating portion of the rotating plate 50 to transmit power to the rotating plate 50.

The rotation sensor 500 may include a rotation target metal 550 installed at the center of the rotation plate 50.

The rotating target metal 550 may be coupled to a rotating portion of the rotating plate 50. For example, the rotating target metal 550 may be located at the center of the upper surface of the rotating plate 50. Therefore, the rotating target metal 550 may be rotated together depending on the rotation of the rotating plate 50.

The rotating target metal 550 may be formed in a hexahedral shape having a long side extending in one direction. For example, the rotating target metal 550 may be formed in a square shape extending in a radial direction from the center of the rotating plate 50.

The rotation sensor 500 may be coupled to the rotation shaft 55 to be spaced upward by a predetermined distance d from the rotation target metal 550. In one example, the predetermined distance (d) may be set to 2mm.

The above-described PCB pattern may be formed on the lower surface of the rotation sensor 550. The PCB pattern may be formed on the lower surface of the rotation sensor 550 to extend in the circumferential direction around the rotation shaft 55.

Therefore, the rotation target metal 550 may rotate at a lower position corresponding to the extending direction of the PCB pattern.

The rotation target metal 550 may rotate together according to the rotation of the rotating plate 50. At this time, the rotation sensor 55 installed on the rotation shaft 55 may detect a change in an induced electric field or an induced magnetic field according to the movement of the rotation target metal 550. Accordingly, the rotation sensor 55 may sense the position of the rotation target metal 550 according to the rotation of the rotation plate 50.

As a result, the rotation sensor 55 can detect the rotation angle in real time to see how much the rotation plate 50 is rotated from the reference position (or reference point). In other words, the rotation sensor 55 may detect the rotation angle of the sheet 30.

Meanwhile, in another embodiment, the rotation sensor 500 may be provided as a hall sensor.

However, when the rotation sensor 500 is provided as a hall sensor, it is possible to detect a change in a magnetic field when the rotation motor 55 is operated and search for a rotation angle and a position according to the rotation of the motor shaft. For example, the controller 300 may calculate the rotation distance of the seat 30 using an output pulse that can be obtained based on the rotation angular velocity of the rotation motor 55.

In addition, when the rotation sensor 500 is provided as a hall sensor, a position corresponding to rotation of the seat 30 and information sensed by the hall sensor may be pre-matched and stored. In this case, rotation information may be stored in the memory whenever each rotation is performed so that the sheet 30 is rotated again.

Meanwhile, referring to FIG. 5, the long slide sensor 200 may be installed on the moving rail 20.

The long slide sensor 200 may be positioned on one side of the moving rail 20 to be spaced outward by a predetermined distance d. In addition, the front end portion of the long slide sensor 200 may be connected to one side end of the moving rail 20. In one example, the predetermined distance (d) may be set to 2mm.

The long slide sensor 200 may be provided to maintain a fixed position independently of the movement of the moving rail 20 in the front-rear direction. For example, the long slide sensor 200 may be coupled to a fixed portion of the moving rail 20.

The long slide sensor 200 may include an extension extending from the connecting portion of the moving rail 20 along the extending direction of the moving rail 20. For example, the long slide sensor 200 may be formed in a T shape. The extension may be formed in a hexahedral shape. In addition, the extension part may be positioned spaced apart from the moving rail 20 by a predetermined distance d.

That is, the long slide sensor 200 may be formed to extend in a front-rear direction that is a moving direction of the moving rail 20. In addition, the long slide sensor 200 may be positioned to be parallel to the moving rail 20.

The long slide sensor 200 may be extended to a length corresponding to the length of the moving rail 20.

On the other hand, the length of the movable rail 20 and the long slide sensor 200 in the front-rear direction may be a standard for determining the rotatable area v of the seat 30, that is, a position condition. .

For example, the long slide sensor 200 may detect the position of the rail target metal 250, which will be described later, to detect the moved position of the moving rail 20. And based on this, the controller 300 may calculate or determine the current position of the seating portion of the seat 30 by the movement of the moving rail 20. According to this, the controller 300 may determine whether or not the seat 30 is located in the rotatable area v in consideration of the influence of the front-rear movement.

The long slide sensor 200 may have a PCB pattern formed on a surface facing the moving rail 20. As an example, the PCB pattern may be formed on an extension of the long slide sensor 200. In addition, the PCB pattern may be formed to extend along the extending direction of the long slide sensor 200.

That is, the PCB pattern may be formed to be parallel to the moving rail 20 at a position spaced apart by a predetermined distance d outside the moving rail 20.

The long slide sensor 200 may include a rail target metal 250 coupled to the moving rail 20.

The rail target metal 250 may be coupled to one side of the moving rail 20 so as to be subject to the movement of the moving rail 20. Therefore, the rail target metal 250 may be moved together according to the movement of the moving rail 20 in the front-rear direction. For example, the rail target metal 250 may be coupled to one surface facing the outside of the moving rail 20. In addition, the coupling position of the rail target metal 250 may be a relative reference of the moving position detected from the long slide sensor 200.

The rail target metal 250 may be positioned to be spaced apart from the PCB pattern by a predetermined distance d. In addition, the rail target metal 250 and the PCB panton may be positioned in parallel to face each other.

Therefore, when the rail target metal 250 moves in the front-rear direction, the long slide sensor 200 having a fixed position senses a change in an induced electric field or an induced magnetic field generated according to the movement of the rail target metal 250. can do.

According to this, the long slide sensor 200 may detect a position moved forward or backward from a reference position (or reference point) of the moving rail 20. As a result, the long slide sensor 200 may detect a moving position in the front-rear direction of the seat 20.

Hereinafter, a detailed control method for performing a rotation operation of the vehicle rotating seat 1 according to an embodiment of the present invention will be described.

FIG. 6 is a flow chart showing a control method for rotating a vehicle rotating seat according to an embodiment of the present invention, and FIG. 7 is a flow chart showing a detailed control method of the initial condition confirmation (S10) step of FIG. 6.

6 and 7, the control method of the vehicle rotating seat 1 according to the embodiment of the present invention is an initial condition checking step (S10) of checking initial conditions to perform rotation of the seat 30 ) And the rotation step (S20) in which the seat 30 rotates.

In detail, the user can operate the input switch 60 to rotate the seat 30. In addition, the input switch 60 may transmit an input signal to the controller 300. At this time, the controller 300 may check the initial conditions to perform safe rotation of the seat 30. (S10)

In order to confirm the initial condition, the controller 300 may detect an input (input switch ON) for rotation operation from the input switch 60 (S11).

When the controller 300 senses the input ON from the input switch 60, it may determine whether the vehicle condition for performing the rotation of the seat 30 is satisfied. (S12)

Here, the vehicle condition may include a vehicle stop condition, a gear parking (P) condition, a door open condition, and a vehicle diagnosis condition.

In detail, in the vehicle stop condition, it may be determined whether the vehicle speed satisfies a zero state. For example, the controller 300 may receive the speed information of the vehicle from the speed sensor and determine whether the vehicle is in a stopped state.

In addition, in the gear parking (P) condition, it may be determined whether the gear of the vehicle is in the parking (P) state. For example, the controller 300 may receive the gear information of the vehicle from the parking detection sensor and determine whether it is in the parking (P) state.

Further, in the door open condition, in order to avoid interference when the seat 30 is rotated, it may be determined whether the door of the vehicle located close to the seat 30 is in an open state. For example, the controller 300 may determine whether the door of the vehicle is in an open state from the door detection sensor.

In addition, in the vehicle diagnosis condition, it is possible to check the failure information and details of the vehicle. For example, the controller 300 may receive failure information of the vehicle from the diagnostic device 450 and determine whether there is a history affecting the rotation operation (the “rotation step”) of the seat 30.

And the controller 300, the vehicle is running, the gear is not in the parking (P) state, the door is closed, or the vehicle's failure information that affects the rotational operation of the seat 30 exists If it is determined that, it is possible to transmit the relevant information to the output unit 400 to output to the outside. (S15)

Therefore, the user can check whether the seat 30 is rotatable through the output unit 400.

In addition, the controller 300 may determine whether or not the user is seated in the seat 30 when the vehicle condition described above is satisfied. (S13)

In one example, the controller 300 may determine whether a user is sitting on the seat 30 based on information input from the seating sensor.

If the user performs a rotational operation while seated on the seat 30, there is a risk of a safety accident, the controller 300 determines that the user is seated on the seat 30, the output unit ( 400) to transmit the related information to output the guide message to the outside. (S15)

In addition, the controller 300 may determine whether the input power of the controller 300 is in a normal state when the passenger non-seating condition (S13) is satisfied. (S14)

The controller 300 may be supplied with the required power from the power module 80. In addition, for stable rotation of the seat 30, the power supplied to the controller 300 needs to be stably maintained.

Therefore, the controller 300 may determine whether the input power is normal. In one example, the controller 300 may determine whether the input power maintains 12V.

In addition, when it is determined that the input power is abnormal, the controller 300 may transmit relevant information to the output unit 450 to output a guide message.

Meanwhile, information input to the output unit 400 by the step S15 may be transmitted to the diagnostic device 450 and stored.

When the input power of the controller 300 is normal, the controller 300 may determine that the initial condition is satisfied and enter the rotation step S20 of performing the rotation operation of the seat 30. That is, when all of the above-described initial conditions are satisfied, the seat 30 may perform a rotation operation.

The controller 300 may perform a rotation step of rotating the seat 30. (S20)

The rotation step (S20) may be understood as a step in which the rotation operation of the sheet 30 is performed. In detail, in the rotation step (S20), the sheet 30 may be understood as a process of starting rotation from the first position and ending rotation after reaching the second position. In one example, the first position may be defined as the normal position or the river position. The second position may be defined as an opposite position rotated 180 degrees from the first position.

The rotation step (S20) may be started when the sheet 30 is located in the normal position. Of course, the rotation step (S20) may also include a process of starting at the river position and stopping at the normal position in reverse order.

In addition, when the initial condition is satisfied in the initial condition checking step S10, the controller 300 may determine whether the seat 30 is located in the normal position or the river position. As an example, when the sheet 30 is positioned in the normal position, the rotation angle may be set to 0 degrees. And when the seat 30 is located in the river position, the rotation angle can be set to 180 degrees.

Hereinafter, the overall rotational operation of the seat 30 will be briefly described based on the state in which the seat 30 is positioned in the normal position.

The controller 300 may determine whether the seat 30 is capable of performing rotation without interference in the normal position. (S21)

In addition, when rotation is possible, the controller 300 may rotate the seat 30 by operating the rotation motor 55. In addition, while the seat 30 starts rotating, the controller 300 can detect whether an emergency is input. (S22)

When the seat 30 rotates, the controller 300 can check the rotation angle of the seat 30 in real time.

Here, the urgent input can be understood as a signal generated when the user operates the input switch 60 again to stop the rotation of the seat 30 or a problem such as an object or a hand gets caught during rotation.

The controller 300 may urgently stop the operation of the rotary motor 55 upon detecting the emergency input.

On the other hand, after the rotation of the seat 30 is stopped, the user can operate the input switch 60 again to confirm whether there is an abnormality and to continue the rotation again.

That is, the input switch 60 functions as a start switch for rotation of the seat 30 when the seat 30 is in a normal position or a reverse position, and when the seat 30 is rotating There, it functions as an emergency switch to cope with an emergency situation, and when the emergency switch is operated, it can function as a resume switch for subsequently performing a stopped rotation.

When the rotation angle reaches 180 degrees, the controller 300 may stop the rotation motor 55 to stop rotation of the seat 30. That is, the controller 300 may complete the rotation if it is determined that the rotation angle has reached 180 degrees. At this time, the seat 30 may be located in the river position. (S23)

Hereinafter, a detailed control method for the rotation step (S20) will be described.

FIG. 8 is a flow chart showing a detailed control method of the rotation step S20 of FIG. 6.

Referring to FIG. 8, the controller 300 may determine whether the seat 30 corresponds to a rotatable position. (S100)

The rotatable position can be understood as a position in which the seat 30 can stably rotate without interference from other configurations inside the vehicle.

When the seat 30 is positioned in the rotatable position, the controller 300 can control the power to be connected to the driving unit. (S180)

That is, the driving unit may be controlled in a power-on state. For example, the controller 300 may control the power to be connected to the rotary motor 55 for the operation of the rotary motor 55.

In addition, the controller 300 may execute a controller safety mode. (S200)

The controller safety mode may enable the driving unit to operate safely by detecting an overcurrent of the driving unit electrically connected from the controller 300.

For example, in the controller safety mode, it is possible to determine whether an abnormal operation is performed by determining a stall condition of the rotary motor 55, determining whether an overcurrent has occurred, and detecting a rate of change of the rotation speed detected by the rotary sensor 500. have.

Detailed control methods for the rotatable position determination step (S100) and the controller safe mode execution step (S200) will be described later.

When the controller safety mode is executed, the controller 300 can control the locking actuator 70 and release the rotating plate 50 to release the restraining state of the rotating plate 50. (S300)

In one example, the controller 300 controls the locking actuator 70 in an OFF state, so that the restriction of the rotating plate 50 can be released. At this time, the rotating plate 50 may be prepared by being lifted and rotatable.

And the controller 300 can operate the rotary motor 55, (S350)

When the rotating motor 55 is operated, the rotating plate 50 coupled to the rotating motor 55 may rotate. In one example, the controller 300 may control the rotation speed of the seat 30 by controlling the output of the rotary motor 55.

When the operation of the rotating motor 55 is started, the controller 300 may detect the rotational position (eg, rotation angle) of the rotating plate 50 through the rotating sensor 500. In addition, the controller 300 may control the output of the rotating motor 55 to be varied according to the detected position of the rotating plate 50.

In addition, the controller 300 includes a predetermined section (the'damping start section' to be described later) in which the rotary motor 55 starts to operate and a predetermined section (the'damping to be described later) in which the rotary motor 55 ends operation. In the stop section'), the damping control can be performed so that the seat 30 is accelerated smoothly and stopped smoothly. (S400)

The damping control may be performed in a damping start section in which the operation of the rotary motor 55 starts and a damping stop section in which the operation of the rotary motor 55 is stopped.

According to the damping control, in the damping start section, the acceleration starts slowly and smoothly so that the seat 30 starts to stably rotate, and the rotation of the seat 30 is reduced by reducing the acceleration slope just before reaching the final rotation speed. There is no heterogeneity, and it can be controlled to realize a sense of quality through emotional satisfaction of users.

In addition, in the damping stop section, the deceleration starts slowly and smoothly so that the seat 30 can stably stop rotating, and finally, by reducing the acceleration slope just before the seat 30 is stopped, the seat 30 is It is possible to control so that there is no heterogeneity in stoppage of rotation and that a sense of quality can be realized through emotional satisfaction of the user.

The damping control may be performed to vary the acceleration slope of the rotational speed over time in the damping start section in which the rotational speed of the rotating motor 55 rises and in the damping stop section in which the rotational speed decreases. Therefore, the rotational speed of the rotary motor 55 may rise or fall while drawing an S-curve than a conventional linear. Detailed descriptions related to this will be described later in the description of FIGS. 11 and 12.

In addition, the controller 300 may detect the rotational position (or rotation angle) of the rotating plate 50 from the rotating sensor 500 to determine whether the rotation is finally completed (S450).

And when the rotation of the rotating plate 50 is completed, the controller 300 may turn off the operation of the rotating motor 55 (S480).

When the rotating motor 55 is off, the controller 300 may control the locking actuator 70 to lower the rotating plate 50 and restrain the rotation of the rotating plate 50 again (S500).

In one example, the controller 300 may restrain the rotating plate 50 by controlling the locking actuator 70 to the ON state.

According to the rotation step described above, the seat 30 of the normal position can be automatically and safely rotated to the river position. Also, the seat 30 of the river position can be automatically and safely rotated back to the normal position.

On the other hand, in order to return the seat 30 to a position (normal position or reverse position) before rotation again, the user may operate (eg, touch) the input switch 60. Then, the above-mentioned initial condition checking step (S10) and rotation step (S20) are repeated, and the seat 30 may be returned to the original position. In this case, the rotation direction of the seat 30 by the rotary motor 55 may be reversed.

9 is a flow chart showing a detailed control method of the rotatable position determination (S100) of FIG.

Referring to FIG. 9, in order to determine whether the seat 30 corresponds to a rotatable position, the controller 300 may detect and/or detect a rotation angle of the current seat 30 from the back sensor 100. Yes (S110)

The backrest sensor 100 may detect a rotation angle of how much the backrest portion of the current seat 30 is rotated from a reference position for rotation, and transmit it to the controller 300. That is, the control unit 300 may detect the current angle of the sheet 30.

In addition, the controller 300 may detect and/or detect a front and rear movement position of the current seat 30 from the long slide sensor 200. (S120)

The long slide sensor 200 may detect the moving position of the seating portion of the current seat 30 from the reference position for forward and backward movement, and transmit the detected position to the controller 300. That is, the controller 300 can detect the current position of the sheet 30.

And the controller 300 is based on the current angle received from the backrest sensor 100 and the current position information received from the long slide sensor 200, the seat 30 can perform rotation without interference It may be determined whether the above-described position conditions are satisfied. (S130)

In detail, the controller 300 may determine whether the current angle satisfies the rotation angle range of the position condition. Here, the rotation angle range may be set in advance to a range of angles at which the backrest portion of the seat 30 can rotate without interference. The preset rotation angle range may be set according to a space standard when manufacturing a vehicle.

In addition, the controller 300 may determine whether the current position satisfies the range of the moving position before and after the position condition. Here, the front-rear movement position range may be set in advance to the maximum distance in the front-rear direction in which the seating portion of the seat 30 can rotate without interference. The preset front-rear movement position range may be set according to a space standard when manufacturing a vehicle.

As described above, the range of the front-rear moving position can be understood as the rotatable area v set based on the lengths of the moving rail 20 and the long slide sensor 200.

When the current angle and the current position are satisfied with the position condition, the controller 300 may determine that the seat 30 is capable of automatically rotating without interference.

On the other hand, if the current angle and the current position do not satisfy the position condition, the controller 300 may move the seat 30 to satisfy the position condition by controlling the driving unit.

In detail, the controller 300 controls the inclined motor 38 when the seat 30 does not satisfy the rotation angle range among the position conditions, so that the rotation angle of the seat 30 is within the rotation angle range. It is possible to rotate the back portion of the seat 30 to satisfy.

In addition, the controller 300 controls the front-rear motor 28 when the seat 30 does not satisfy the front-rear moving position range among the position conditions, so that the front-rear moving distance of the seat 30 is the front-rear. The seating portion of the seat 30 may be moved to satisfy the moving position range.

Therefore, the seat 30 may be rotated by the operation of the rotating motor 55 in a state that satisfies the position condition that can rotate without interference.

FIG. 10 is a flow chart showing a detailed control method of the controller safety mode execution (S200) of FIG. 8.

Referring to FIG. 10, when the controller safety mode is executed, it may be determined whether the current flowing through the internal circuit of the controller 300 satisfies the safety condition. (S210)

That is, the controller 300 may detect the input current in real time to determine whether or not it is overcurrent. As an example, the criterion for determining whether or not the overcurrent is 15 may be set as (A).

When the input current of the controller 300 satisfies the safety condition, the controller 300 may determine whether the rate of change of the rotational speed of the seat 30 satisfies the safety condition. (S220)

The controller 300 may calculate and/or detect the rotational speed and the rate of change of the rotational speed of the seat 30 based on rotational information by the rotation sensor 55. For example, when the rate of change of the rotational speed of the seat 30 is larger than a preset reference rate of change, that is, when the rotational speed is increased or decreased faster than the reference, the controller 300 rotates the rotational speed of the seat 30 It can be judged that the rate of change does not satisfy the safety condition.

On the other hand, if the step S210 or step S220 is not satisfied, the controller 300 may stop the operation of the rotary motor 55 for a predetermined time and then control it to start again. (S225)

In addition, the controller 300 may transmit information on the reason and details of the restarting to the diagnostic device 450.

In addition, even if the steps S210 and S220 are satisfied, the controller 300 may detect a stall condition of the rotary motor 55 (S230).

When the permanent magnet is used, the rotating motor 55 may have different stall conditions. For example, the stall condition of the rotary motor 55 may be set to a case where the input current value of the rotary motor 55 is greater than 15(A).

When the rotating motor 55 satisfies the stall condition, the controller 300 can immediately stop the operation of the rotating motor 55 because an overcurrent is generated. (S250)

In addition, the controller 300 may transmit stop information of the rotating motor 55 according to the stall condition to the diagnostic device 450 and control the output to be output to the outside by the output unit 400 (S260). )

On the other hand, if the above-described stall condition is not sensed during the operation time of the rotary motor 55, the controller 300 can finally complete the rotation of the seat 30 to terminate the controller safe mode (S240).

11 is a timing chart showing damping control according to an embodiment of the present invention, and FIG. 12 is a graph comparing motor speed over time in the damping start section A of FIG. 11.

Referring to FIG. 11, as described above, the damping control includes a damping start section (A) in which the operation of the rotary motor 55 starts and a damping stop section (Z) in which the operation of the rotary motor 55 is stopped. ).

The damping start section A may be defined as a rising section in which the output of the rotating motor 55 rises from 0V to a preset maximum output (for example, 12V).

In addition, the damping stop section Z may be defined as a falling section in which the output of the rotary motor 55 falls from a preset maximum power (for example, 12V) to 0V.

The damping start section (A) and the damping stop section (Z) may be understood as a section in which the seat 30 starts rotating in a stopped state or is stopped in a rotated state. Therefore, the rotation motor 55 control in the damping start section A and the damping stop section Z should be made to satisfy the emotional satisfaction of the user with respect to the rotation of the seat 30.

The controller 300 may perform the output of the rotary motor 55 by pulse width modulation control. The pulse width modulation control is hereinafter referred to as PWM control.

In detail, the controller 300 may perform the PWM control to vary the duty ratio in the damping start section A and the damping stop section Z. In one example, the controller 300 may perform PWM control so that a duty ratio in the damping start section A gradually increases over time. In addition, the controller 300 may perform PWM control so that a duty ratio in the damping stop section Z gradually decreases over time.

According to this, referring to FIG. 12, in the damping start section A, the rotational speed (“motor speed”) of the rotating motor 55 may gradually increase from 0 to time.

That is, in the case of a conventional rotary motor that is started without the damping control, the rotational speed (Linear) rises at a constant acceleration and reaches a predetermined time (T) up to the rotational speed (H) corresponding to the preset maximum output. Can.

The rotation motor 55 to which the damping control is applied may be controlled such that the acceleration varies with time until the rotation speed H corresponding to the preset maximum output is reached. In one example, the controller 300 may gradually increase the acceleration from a relatively small value so that the operation of the rotary motor 55 starts smoothly. In addition, the controller 300 may gradually decrease the acceleration in order to smoothly reach the rotational speed H corresponding to the maximum output of the rotating motor 55.

In other words, in the damping control, the controller 300 is applied to the damping start section A in which the rotational speed of the rotating motor 55 rises and the damping stop section Z in which the rotational speed falls. It is possible to control the slope of the rotational speed of the rotating motor 55 to be variable over time.

Therefore, the rotational speed of the rotary motor 55 may rise or fall while drawing an S-curve than a conventional linear.

As an example, as shown in FIG. 12, the rotational speed of the rotary motor 55 to which the damping control is applied may be provided to form a curve graph of an'S' shape up to a speed H corresponding to the preset maximum output. .

On the other hand, the rotational speed (S-curve) of the rotating motor 55, the time to reach the speed (H) corresponding to the preset maximum output may be longer than in the case of the conventional rotating motor (T).

Therefore, in the damping start section (A), the seat 30 may start to rotate slowly and smoothly, and, in turn, minimize the feeling of heterogeneity caused by the sudden rotation of the seat 30 and the user's emotional High quality through satisfaction can be realized.

Similarly, in the damping stop section Z, deceleration starts slowly so that the seat 30 can stably stop rotating, and finally, the rotational speed decreases slowly until the seat 30 stops, so that the It is possible to minimize the feeling of heterogeneity caused by the sudden stop of the sheet 30 and realize a sense of quality through emotional satisfaction of the user.

1: Vehicle rotating seat 20: Moving rail
30: sheet 50: rotating plate
100: back sensor 200: long slide sensor
500: rotation sensor

Claims (20)

In the vehicle rotating seat comprising a seat for a user to sit, a tilting axis for tilting the seat, a moving rail for moving the seat in the front-rear direction, and a rotating plate for rotating the seat,
A backrest sensor installed on the tilting shaft to detect a tilting angle of the seat;
A long slide sensor installed on the moving rail to detect a front and rear moving position of the seat;
A rotation sensor installed on the rotating plate to detect a rotation angle of the sheet; And
It includes a controller for controlling the rotational motion of the seat,
The controller,
Based on information detected from the backrest sensor and the long slide sensor, it is determined whether the seat is located in a rotatable position,
When the seat is located in the rotatable position, the rotating sheet for a vehicle, characterized in that the rotating plate is controlled to rotate.
According to claim 1,
Further comprising a target metal coupled to the tilting shaft to be spaced a predetermined distance (d) from the backrest sensor,
The backrest sensor is a vehicle rotating seat, characterized in that for detecting the tilting angle of the seat by the target metal rotating with the tilting shaft.
According to claim 1,
Further comprising a rail target metal coupled to the moving rail to be spaced a predetermined distance (d) from the long slide sensor,
The long slide sensor is a vehicle rotating seat, characterized in that for detecting the front and rear moving position of the seat by the rail target metal moving back and forth with the moving rail.
According to claim 1,
A rotating shaft provided at the center of the rotating plate and maintaining a fixed position independent of rotation of the rotating plate; And
Further comprising a rotation target metal coupled to the rotating plate to be spaced a predetermined distance (d) from the rotating sensor,
The rotating sensor is coupled to the rotating shaft, the rotating sheet for a vehicle, characterized in that for detecting the rotation angle of the seat by the rotating target metal rotating with the rotating plate.
According to claim 1,
Further comprising a rotary motor connected to the rotating plate to provide a driving force to rotate the rotating plate,
The controller,
A rotating seat for a vehicle, characterized in that the output of the rotating motor is controlled such that the acceleration is variable in a section in which it rises or falls.
The method of claim 5,
The rotating motor is a vehicle rotating seat comprising a brushless (BLDC) motor.
The method of claim 5,
The controller,
The rotation sheet for a vehicle, characterized in that for controlling the output of the rotation motor based on the rotation angle detected by the rotation sensor.
According to claim 1,
The controller,
When the seat is out of the rotatable position, the vehicle rotating seat, characterized in that for controlling the front and rear motors installed on the moving rail and the inclined motor installed on the tilting shaft to move the seat to the rotatable position.
According to claim 1,
Further comprising a diagnostic device for managing the condition of the vehicle based on the information detected from a plurality of sensors installed in the vehicle,
The plurality of sensors, a vehicle rotating seat including at least one of a door detection sensor, a parking detection sensor and a speed detection sensor.
The method of claim 9,
The controller, the vehicle rotating seat comprising a communication module capable of transmitting and receiving information with the diagnostic device.
Checking initial conditions for rotating the seat installed inside the vehicle;
Determining whether the seat is positioned in a rotatable position based on information detected by a backrest sensor that senses the tilting angle of the seat and a long slide sensor that detects a front and rear movement position of the seat;
A controller safety mode execution step of sensing a state of a controller that controls rotation of the seat;
The step of releasing the restraint of the rotating plate provided on the sheet;
Operating a rotating motor connected to the rotating plate;
Damping control is performed to control the output of the rotating motor by pulse width modulation (PWM) according to the rotation angle of the sheet according to the operation of the rotating motor; And
And determining whether the seat is completely rotated, and restraining the rotating plate again.
The method of claim 11,
The damping control,
Damping start section where the output of the rotating motor rises from 0V to a preset maximum output, and
Control method of a rotating seat for a vehicle, characterized in that the output of the rotating motor is performed in a damping stop section descending from the preset maximum output to OV.
The method of claim 12,
The controller,
And controlling the pulse width modulation (PWM) to vary a duty ratio in the damping start section and the damping stop section.
The method of claim 13,
The controller,
In the damping start section, the duty ratio is controlled to gradually increase over time,
In the damping stop section, the control method for a rotating seat for a vehicle, characterized in that the duty ratio is controlled to gradually decrease over time.
The method of claim 12,
The controller,
Control method of a rotating seat for a vehicle, characterized in that the rotational acceleration of the rotating motor is varied in the damping start section and the damping stop section.
The method of claim 11,
The step of determining whether it is located in the rotatable position,
Sensing a current tilting angle of the seat from the backrest sensor;
Detecting a current moving position of the sheet from the long slide sensor; And
And the controller determining whether the current tilting angle and the current moving position satisfy a preset range.
The method of claim 15,
The controller,
When the current tilting angle and the current moving position is out of a preset range, the method for controlling a rotating seat for a vehicle, characterized in that the seat is rotated or moved to satisfy the preset range.
The method of claim 11,
The controller safety mode execution step,
Determining whether the input current of the controller and the rate of change of the rotational speed of the seat satisfy a preset safety condition; And
And a stall condition detection step for detecting the overcurrent of the rotary motor,
The controller, when the stall condition is detected, the method of controlling a rotating seat for a vehicle, characterized in that to stop the rotating motor.
The method of claim 18,
The controller,
When the safety condition is not satisfied or when the stall condition is detected, a control is performed so that a guide is output to the output unit, and a method of controlling a rotating seat for a vehicle is characterized in that the relevant information is transmitted to a vehicle diagnostic device.
The method of claim 11,
Checking the initial conditions,
It is characterized by determining based on information detected from at least one of a door detection sensor for detecting whether a vehicle is open, a parking detection sensor for detecting whether a vehicle is parked, and a speed detection sensor for detecting whether a vehicle is stopped. Method for controlling a rotating seat for a vehicle.

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