KR102050090B1 - Seat for vehicle and method for controlling seat for vehicle - Google Patents

Abstract

According to an embodiment, a control system for a vehicle seat may include: a pressure information receiver configured to receive in real time pressure information measured from at least one pressure sensor provided in a vehicle seat in which a passenger in a vehicle is seated; And a stiffness adjuster for partially adjusting the stiffness of the vehicle seat from the pressure information received in real time, wherein the pressure information received by the pressure information receiver and the pressure information receiver are received when the vehicle runs on a flat surface. The pressure information may be compared in real time, and the stiffness of the vehicle seat may be adjusted so that the pressure information received by the pressure information receiver matches the pressure information received by the pressure information receiver when the vehicle is flat.

Description

Control system of vehicle seat and vehicle seat {SEAT FOR VEHICLE AND METHOD FOR CONTROLLING SEAT FOR VEHICLE}

The present invention relates to a vehicle seat and a control system for a vehicle seat, and more particularly, a vehicle seat such that the pressure information received at the pressure information receiver matches the pressure information received at the pressure information receiver when the vehicle is traveling on a flat (non-sloped surface) surface. A control system for a vehicle seat and a vehicle seat that can partially adjust its rigidity.

As autonomous vehicles are developed and implemented, interest in ride comfort has increased.

In terms of ride comfort, unpaved, bumpy bumps such as speed bumps, and sloped roads may adversely affect the ride comfort of the occupants.

Accordingly, various methods and apparatuses for improving riding comfort have been developed.

For example, KR 2006-0051409, filed on June 8, 2006, discloses a 'seat structure' with improved vibration absorption characteristics.

An object according to an embodiment is a vehicle seat that can partially adjust the stiffness of the vehicle seat so that the pressure information received from the pressure information receiver matches the pressure information received from the pressure information receiver when the vehicle is traveling on a flat (non-sloped surface); It is to provide a control system for a vehicle seat.

An object according to an embodiment is to adjust the stiffness of the seat by adjusting the stiffness of the seat on the uphill or downhill to prevent the disturbance of the occupant's posture and the excessive pressure applied to the hip joint of the occupant. It is to provide a control system for a vehicle seat and a vehicle seat.

An object according to one embodiment is to adjust the stiffness of the seat through the partial stiffness adjustment of the seat, the vehicle seat that can prevent the disturbance of the occupant's posture and excessive pressure applied to the lower left or right lower limb of the occupant when cornering And a control system for a vehicle seat.

An object according to an embodiment is to provide a control system for a vehicle seat and a vehicle seat that can improve the riding comfort by maintaining a constant pressure distribution of the lower limb of the occupant seated on the vehicle seat.

An object according to an embodiment of the present invention utilizes a navigation system with a 3D map function to receive information on slopes, irregularities, or uneven roads, and further controls tires and suspension devices as well as seats, which occur in a vehicle during road driving. It is to provide a control system for a vehicle seat and a vehicle seat that can suppress vibration and improve ride comfort.

According to an embodiment of the present invention, a control system for a vehicle seat includes a pressure information receiver configured to receive, in real time, pressure information measured from at least one pressure sensor provided in a vehicle seat in which a passenger in a vehicle is seated; And a stiffness adjuster that partially adjusts the stiffness of the vehicle seat from the pressure information received in real time, wherein the stiffness adjuster comprises: the pressure information received from the pressure information receiver and the pressure information received when the vehicle is flat; Compare the pressure information received by the pressure information receiver in real time, and adjust the stiffness of the vehicle seat so that the pressure information received by the pressure information receiver matches the pressure information received by the pressure information receiver when the vehicle is flat. Can be.

According to one side, the stiffness control unit is to increase the stiffness of the seat for the vehicle in an area where the pressure information received from the pressure information receiver is larger than the pressure information received from the pressure information receiver when the vehicle is flat driving or The stiffness of the vehicle seat may be reduced in an area in which the pressure information received by the pressure information receiver is smaller than the pressure information received by the pressure information receiver when the vehicle runs flat.

According to one side, the stiffness adjustment portion, the front stiffness adjustment member disposed adjacent to the occupant portion of the occupant in the vehicle seat; A rear stiffness adjustment member disposed adjacent the hip joint portion of the occupant in the vehicle seat; A left stiffness adjustment member disposed below the left lower leg of the occupant in the vehicle seat; And a right stiffness adjusting member disposed under the right lower leg of the occupant in the vehicle seat, wherein the front stiffness adjusting member, the rear stiffness adjusting member, the left stiffness adjusting member, and the right stiffness adjusting member are individually Can be controlled.

According to one side, the driving information receiving unit for receiving the driving information of the vehicle; And a location information receiver configured to receive location information of the vehicle, wherein the stiffness controller may partially adjust the stiffness of the vehicle seat according to the driving information or the location information.

According to one side, the stiffness adjustment unit may adjust the stiffness of the vehicle seat in real time according to the inclination of the ground on which the vehicle is calculated from the position information of the vehicle.

According to an embodiment of the present invention, a vehicle seat includes: a seat frame disposed in a vehicle and seated by a passenger; And a plurality of rigidity adjusting members provided in the seat frame and actively controlling rigidity according to the inclination of the vehicle or the pressure applied to the seat frame. The plurality of rigidity adjusting members may include rigidity of the seat frame. By partially adjusting, some of the plurality of rigidity adjusting members may increase the rigidity of the seat frame and some of the plurality of rigidity adjusting members may reduce the rigidity of the seat frame.

According to one side, the plurality of stiffness adjustment member, the front stiffness adjustment member disposed in the seat frame adjacent to the occupant portion of the occupant; And a rear stiffness adjustment member disposed adjacent to the hip joint portion of the occupant within the seat frame, wherein the front stiffness adjustment member and the rear stiffness adjustment member are operated when the vehicle is traveling uphill or downhill. Can be controlled individually.

According to one side, the plurality of stiffness adjustment member, the left stiffness adjustment member disposed under the left lower leg of the occupant in the seat frame; And a right stiffness adjusting member disposed under the right lower leg of the occupant in the seat frame, wherein the left stiffness adjusting member and the right stiffness adjusting member may be individually controlled when the vehicle is cornered.

According to one side, each of the rigidity control member, a magnetorheological fluid or an electrorheological fluid whose viscosity is changed by an applied electric or magnetic field; And at least one spring made of an elastic material and disposed in the magnetorheological fluid or the electrofluid fluid, wherein the at least one spring is controlled by an electric field or a magnetic field applied to the magnetorheological fluid or the electrofluid fluid. Stiffness can be controlled.

According to the control system of the vehicle seat and the vehicle seat according to an embodiment, the rigidity of the vehicle seat so that the pressure information received at the pressure information receiver matches the pressure information received at the pressure information receiver when the vehicle is traveling on a flat (non-sloped surface) Can be partially adjusted.

According to a control system for a vehicle seat and a vehicle seat according to an embodiment, through the partial stiffness control of the seat, the attitude of the occupant and the hip joint of the occupant are corrected by correcting the attitude of the occupant according to the inclination of the road on the uphill or downhill Excessive pressure on the system can be prevented.

According to a control system for a vehicle seat and a vehicle seat according to an embodiment, through the partial stiffness adjustment of the seat, the posture of the occupant is corrected during cornering to be applied to the occupant's posture and the lower left or right lower limb of the occupant Excessive pressure can be prevented.

According to the control system for a vehicle seat and a vehicle seat according to an embodiment, it is possible to improve the ride comfort by maintaining a constant pressure distribution of the lower part of the occupant seated on the vehicle seat.

According to a control system of a vehicle seat and a vehicle seat according to an embodiment, by using the navigation with the 3D Map function to receive information on the slope, irregularities or uneven road, and not only the seat, but also tires and suspension devices By controlling, it is possible to suppress the vibration occurring in the vehicle while driving on the road and to improve the riding comfort.

1 illustrates a vehicle seat according to an embodiment.
2 shows a vehicle seat according to another embodiment.
3 illustrates a control system for a vehicle seat according to an embodiment.
4 is a flowchart illustrating a control method of a vehicle seat according to an exemplary embodiment.
5 illustrates a state in which a vehicle seat is controlled on an uphill road.
6 shows a state where the vehicle seat is controlled on the downhill road.
7 illustrates a state in which the vehicle seat is controlled at the right cornering.
8 illustrates a state in which the vehicle seat is controlled during left cornering.

Hereinafter, the embodiments will be described in detail with reference to the accompanying drawings. In adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are assigned to the same components as much as possible even though they are shown in different drawings. In addition, in describing the embodiment, when it is determined that the detailed description of the related well-known configuration or function interferes with the understanding of the embodiment, the detailed description thereof will be omitted.

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

Components included in one embodiment and components including common functions will be described using the same names in other embodiments. Unless stated to the contrary, the description in any one embodiment may be applied to other embodiments, and detailed descriptions thereof will be omitted in the overlapping range.

1 shows a vehicle seat according to one embodiment, and FIG. 2 shows a vehicle seat according to another embodiment.

Referring to FIG. 1, the vehicle seat 10 according to an exemplary embodiment may include a seat frame 100 and a plurality of rigidity adjusting members 110.

The seat frame 100 may be disposed in a vehicle and provided to seat a passenger.

For example, the seat frame 100 may include a cushion to cushion the transmission of vibration to the vehicle to the occupant.

A plurality of rigidity adjusting members 110 may be disposed in the seat frame 100.

In particular, referring to FIG. 1, the plurality of rigidity adjusting members 110 may include a front rigidity adjusting member 112 and a rear rigidity adjusting member 114.

In this case, the front side indicates the A direction with respect to the seat frame 100, and the rear side indicates the B direction with respect to the seat frame 100.

The front rigidity control member 112 may be disposed adjacent to the occupant portion of the occupant seated on the seat frame 100.

Specifically, the front stiffness adjusting member 112 may include at least one spring 1122 and a magnetorheological fluid or an electrofluidic fluid 1124.

The at least one spring 1122 may be made of an elastic material and disposed adjacent to the front end of the seat frame 100. For example, one end of the spring 1122 may be disposed at the left end of the seat frame 100. The other end of the spring 1122 may be connected to the right end of the seat frame 100. In addition, when a plurality of springs 1122 are provided, the plurality of springs 1122 may be spaced apart from each other from the front to the rear in the seat frame 100.

The magnetorheological or electrorheological fluid 1124 may be filled around at least one spring 1122 in the seat frame 100.

At this time, magneto-Rheological Fluids is a general term for fluids whose mechanical properties change according to the strength of a magnetic field. When a magnetic field is loaded into an MR fluid, particles dispersed in the fluid cause induced polarization and The structure is parallel to the magnetic field, which resists shear forces applied by fluid movement or external resistance.

Electro-Rheological Fluids is a generic term for fluids whose mechanical properties change in proportion to the strength of an electric field being loaded. When an ER fluid is loaded with an electric field, it changes from a liquid to a solid phase. The chain structure formed in the direction of the electric field under the electric field load has resistance to the shear force applied from above by the binding force of the particles.

As described above, the front stiffness adjusting member 112 controls the magnetic field or the electric field applied to the magnetorheological fluid or the electrofluidic fluid 1124, and thus the seat frame 100 adjacent to the hamper portion of the occupant seated on the seat frame 100. You can control the stiffness of a part of.

The rear rigidity adjusting member 114 may be disposed adjacent to the hip joint of the occupant seated on the seat frame 100.

Specifically, the rear stiffness adjustment member 114 may include at least one spring 1142 and a magnetorheological or electrorheological fluid 1144.

The at least one spring 1142 may be formed of an elastic material and disposed adjacent to the rear end portion of the seat frame 100. For example, one end of the spring 1142 may be disposed at the left end of the seat frame 100. The other end of the spring 1142 may be connected to the right end of the seat frame 100. In addition, when a plurality of springs 1142 are provided, the plurality of springs 1142 may be spaced apart from each other from the front to the rear in the seat frame 100.

The magnetorheological or electrofluidic fluid 1144 may be filled around at least one spring 1142 in the seat frame 100.

At this time, magneto-Rheological Fluids is a general term for fluids whose mechanical properties change according to the strength of a magnetic field. When a magnetic field is loaded into an MR fluid, particles dispersed in the fluid cause induced polarization and The structure is parallel to the magnetic field, which resists shear forces applied by fluid movement or external resistance.

Electro-Rheological Fluids is a generic term for fluids whose mechanical properties change in proportion to the strength of an electric field being loaded. When an ER fluid is loaded with an electric field, it changes from a liquid to a solid phase. The chain structure formed in the direction of the electric field under the electric field load has resistance to the shear force applied from above by the binding force of the particles.

As described above, the rear stiffness adjusting member 114 controls the magnetic field or the electric field applied to the magnetorheological fluid or the electrofluidic fluid 1144, and thus the seat frame 100 adjacent to the hip joint of the occupant seated on the seat frame 100. You can control the stiffness of a part of.

As described above, the stiffness of the front portion and the rear portion of the seat frame 100 may be individually controlled by the front stiffness adjusting member 112 and the rear stiffness adjusting member 114.

In particular, referring to FIG. 2, the vehicle seat 20 according to another embodiment may include a seat frame 200 and a plurality of rigidity adjusting members 210.

The plurality of stiffness adjusting members 210 may include a left stiffness adjusting member 212 and a right stiffness adjusting member 214.

In this case, the left side indicates the C direction based on the sheet frame 200, and the right side indicates the D direction based on the sheet frame 200.

The left stiffness adjustment member 212 may be disposed below the left lower portion of the occupant seated on the seat frame 200.

In detail, the left stiffness adjusting member 212 may include at least one spring 2122 and a magnetorheological or electrorheological fluid 2124.

The at least one spring 2122 may be made of an elastic material and disposed adjacent to the left end of the seat frame 200. For example, one end of the spring 2122 may be disposed at the front end of the seat frame 200. The other end of the spring 2122 may be connected to the rear end of the seat frame 200. In addition, when a plurality of springs 2122 are provided, the plurality of springs 2122 may be spaced apart from each other from the left end to the right end in the seat frame 200.

The magnetorheological or electrorheological fluid 2124 may be filled around at least one spring 2122 in the seat frame 200.

In this case, the description of the magnetorheological fluid or the electrofluid fluid 2124 is the same as described in the front stiffness control member 112 and the rear stiffness control member 114, and will be omitted below.

As described above, the left stiffness adjusting member 212 has a seat frame in which the lower left portion of the occupant seated on the seat frame 200 is placed through the control of the magnetic field or the electric field applied to the magnetorheological fluid or the electrofluid fluid 2124. The stiffness of a portion of 200 can be controlled.

The right stiffness adjustment member 214 may be disposed under a right lower leg portion of the occupant seated on the seat frame 200.

In detail, the right stiffness adjusting member 214 may include at least one spring 2142 and a magnetorheological or electrorheological fluid 2124.

The at least one spring 2142 may be made of an elastic material and disposed adjacent to the right end in the seat frame 200. For example, one end of the spring 2142 may be disposed at the front end of the seat frame 200. The other end of the spring 2142 may be connected to the rear end of the seat frame 200. In addition, when a plurality of springs 2142 are provided, the plurality of springs 2142 may be spaced apart from each other from the left end to the right end in the seat frame 200.

The magnetorheological or electrorheological fluid 2144 may be filled around at least one spring 2142 in the seat frame 200.

In this case, the description of the magnetorheological fluid or the electrofluidic fluid 2144 is the same as described in the front stiffness control member 112 and the rear stiffness control member 114, and will be omitted below.

As described above, the right stiffness adjusting member 214 has a seat frame in which the lower right portion of the occupant seated on the seat frame 200 is placed through the control of the magnetic field or the electric field applied to the magnetorheological fluid or the electrofluid fluid 2144. The stiffness of a portion of 200 can be controlled.

As described above, the stiffness of the left portion and the right portion of the seat frame 100 may be individually controlled by the left stiffness adjusting member 212 and the right stiffness adjusting member 214.

1 and 2 show that the front stiffness adjusting member 112 and the rear stiffness adjusting member 114, the left stiffness adjusting member 212 and the right stiffness adjusting member 214 are provided in the seat frames 100 and 200, respectively. However, it is obvious that the front stiffness adjusting member 112, the rear stiffness adjusting member 114, the left stiffness adjusting member 212 and the right stiffness adjusting member 214 may all be provided in one seat frame.

For example, when the front stiffness adjusting member 112, the rear stiffness adjusting member 114, the left stiffness adjusting member 212 and the right stiffness adjusting member 214 are all provided in one seat frame, the front of the seat frame The part, the rear part, the left part and the right part can all be controlled individually.

The structure of the vehicle seat according to the embodiment and the vehicle seat according to another embodiment has been described above, and the control of the vehicle seat is described below.

3 is a diagram illustrating a control system for a vehicle seat according to an embodiment, FIG. 4 is a flowchart illustrating a method for controlling a vehicle seat according to an embodiment, and FIG. 5 is a view illustrating a vehicle seat controlled on an uphill road. FIG. 6 illustrates a state in which the vehicle seat is controlled on a downhill road, FIG. 7 illustrates a state in which the vehicle seat is controlled at the right corner, and FIG. 8 illustrates a state in which the vehicle seat is controlled at the left corner.

Referring to FIG. 3, a control system 30 of a vehicle seat according to an embodiment may include a driving information receiver 310, a location information receiver 320, a pressure information receiver 330, and a stiffness adjuster 340. Can be.

The driving information receiver 310 may receive driving information of the vehicle including the speed or acceleration of the vehicle.

The location information receiver 320 may be provided with a navigation with a 3D map function, and may receive location information of a vehicle including a vehicle driving direction, a location, or road information (roughness, slope, etc.).

The pressure information receiver 330 may receive in real time pressure information measured from at least one pressure sensor (eg, a load cell) provided in the seat frames 100 and 200.

For example, the at least one pressure sensor is mounted on the front part, the rear part, the left part and the right part of the seat frames 100 and 200, so that the pressure applied to the seat frames 100 and 200 by the occupant in various positions. Can be measured individually at

The stiffness adjustment unit 340 is the front stiffness adjustment member (112 in FIG. 1), the seat frame (100, 200) disposed adjacent to the occupant of the occupant in the above-described vehicle seat, in particular the seat frame (100, 200) A rear stiffness adjustment member (114 in FIG. 1) disposed adjacent to the hip joint part of the occupant, and a left stiffness adjustment member disposed below the left lower leg of the occupant in the above-described vehicle seat, in particular, the seat frames 100 and 200 ( 212 of FIG. 2 and the right stiffness adjustment member 214 of FIG. 2 disposed below the right lower leg of the occupant within the aforementioned vehicle seat, in particular the seat frames 100, 200.

At this time, the front stiffness adjustment member (112 in FIG. 1), the rear stiffness adjustment member (114 in FIG. 1), the left stiffness adjustment member (212 in FIG. 2) and the right stiffness adjustment member (214 in FIG. 2) are individually controlled. In addition, the rigidity of the vehicle seat, in particular the seat frame 100, 200 may be partially adjusted.

In detail, the rigidity adjusting unit 340 may be controlled according to driving information of the vehicle, position information of the vehicle, or pressure information.

For example, referring to FIG. 4, the slope or curvature of the ground is calculated from the position information of the vehicle acquired by the location information receiver 320 (S10), and the rigidity of the vehicle seat is primarily based on the calculated slope or curvature of the ground. Partially adjusted to (S20).

At this time, since the position information of the vehicle is obtained in real time by the position information receiver 320, the inclination or curvature of the ground may also be calculated in real time, and thus the rigidity of the vehicle seat may be adjusted in real time.

In addition, the rigidity of the vehicle seat can be adjusted in part, for example, the front part, the rear part, the left part and the right part of the seat frame individually.

Then, when the vehicle runs on a flat or straight course, the pressure information received by the pressure information receiver 330 and the pressure information received by the pressure information receiver 330 are compared in real time (S30).

In this case, the pressure information received by the pressure information receiver 330 when the vehicle is driving on a flat or straight course may be measured in advance and stored in advance in a controller (not shown) that controls the operation of the stiffness controller 340.

If the pressure information received by the pressure information receiver 330 and the pressure information received by the pressure information receiver 330 do not coincide with each other when the vehicle runs on a flat or straight course, the pressure received by the pressure information receiver 330 Secondly, the stiffness of the vehicle seat is adjusted until the information matches the pressure information received from the pressure information receiving unit when the vehicle runs on a flat or straight course (S40).

At this time, the rigidity of the vehicle seat can be adjusted in part, for example, the front part, the rear part, the left part and the right part of the seat frame individually.

Specifically, referring to FIG. 5, when the vehicle travels uphill, the vehicle seat may be controlled as follows.

When the vehicle travels uphill, the inclination of the ground is calculated from the position information of the vehicle acquired by the location information receiving unit 330, and the stiffness of the vehicle seat is primarily partially adjusted according to the calculated inclination of the ground.

Specifically, when the vehicle travels uphill, since a strong pressure is applied to the vicinity of the hip joint of the occupant compared to the vicinity of the hamstring, the stiffness adjustment unit may be controlled to increase the rigidity in the rear portion of the vehicle seat adjacent to the hip joint of the occupant.

On the other hand, since relatively weak pressure is applied near the occupant of the occupant, the stiffness adjustment part can be controlled to reduce the rigidity in the front portion of the vehicle seat adjacent to the occupant's occlusion.

For example, by controlling the electric or magnetic field applied to the magnetorheological fluid or the electrofluid fluid 1144 in the rear stiffness adjusting member 114, the stiffness can be increased in the rear portion of the vehicle seat, and the front stiffness adjusting member By controlling the electric or magnetic field applied to the magnetorheological fluid or the electrofluidic fluid 1124 at 112, the stiffness can be reduced at the front portion of the vehicle seat.

Subsequently, while the vehicle travels uphill, the pressure information received by the pressure information receiver 330 is compared with the pressure information received by the pressure information receiver 330 when the vehicle is flat, and received by the pressure information receiver 330. Secondarily partially adjust the stiffness of the vehicle seat so that the pressure information is matched with the pressure information received by the pressure information receiver 330 when the vehicle is flat.

For example, in an area where the pressure information received by the pressure information receiver 330 is larger than the pressure information received by the pressure information receiver 330 when the vehicle is flat, for example, a rear portion of the vehicle seat, The rigidity is increased, and the pressure information received by the pressure information receiving unit 330 is smaller than the pressure information received by the pressure information receiving unit 330 when the vehicle runs flat, for example, for the front portion of the vehicle seat. The rigidity of the sheet can be reduced.

As such, the stiffness of the vehicle seat can be secondarily adjusted to more precisely control the stiffness of the vehicle seat, and the rear part of the vehicle seat is prevented from being contracted by the pressure during the uphill driving of the vehicle, thereby disturbing the occupant's posture and Excessive pressure on the occupants' hips can be prevented.

On the other hand, referring to Figure 6, when the vehicle is driving downhill vehicle seat can be controlled as follows.

When the vehicle travels downhill, the inclination of the ground is calculated from the position information of the vehicle acquired by the location information receiving unit 330, and the stiffness of the vehicle seat is primarily partially adjusted according to the calculated inclination of the ground.

Specifically, when the vehicle travels downhill, since a strong pressure is applied to the occupant's vicinity near the hip joint, the stiffness adjustment unit may be controlled to increase the rigidity in the front portion of the vehicle seat adjacent to the occupant's vicinity. .

On the other hand, since relatively weak pressure is applied to the vicinity of the hip joint of the occupant, the stiffness adjustment part can be controlled to reduce the rigidity in the rear portion of the vehicle seat adjacent to the hip joint of the occupant.

For example, by controlling the electric or magnetic field applied to the magnetorheological fluid or the electrofluid fluid 1124 in the front stiffness adjusting member 112, the stiffness is increased in the front portion of the vehicle seat, and the rear stiffness adjusting member 114 By controlling the electric field or the magnetic field applied to the magnetorheological fluid or the electrofluid fluid 1144, the rigidity in the rear portion of the vehicle seat can be reduced.

Subsequently, while the vehicle travels downhill, the pressure information received by the pressure information receiver 330 is compared with the pressure information received by the pressure information receiver 330 when the vehicle is flat, and the pressure information receiver 330 Secondly, the stiffness of the vehicle seat is partially adjusted so that the received pressure information matches the pressure information received by the pressure information receiver 330 when the vehicle is flat.

For example, in a region where the pressure information received in real time by the pressure information receiver 330 is greater than the pressure information received by the pressure information receiver 330 when the vehicle is flat, for example, the front portion of the vehicle seat The rigidity of the seat is increased, and the pressure information received by the pressure information receiver 330 is smaller than the pressure information received by the pressure information receiver 330 when the vehicle is flat, for example, in a rear portion of the vehicle seat. The rigidity of the vehicle seat can be reduced.

As such, the rigidity of the vehicle seat can be secondarily adjusted to more precisely control the rigidity of the vehicle seat, and the front part of the vehicle seat is prevented from being contracted by the pressure during driving downhill of the vehicle, thereby disturbing the occupant's posture. And excessive pressure applied to the occupants' patrols.

In addition, referring to FIG. 7, the vehicle seat may be controlled as follows when the vehicle is right cornered.

When the vehicle travels to the right corner, the curvature of the ground is calculated from the position information of the vehicle obtained by the location information receiving unit 330, and the stiffness of the vehicle seat is primarily partially adjusted according to the calculated curvature of the ground.

Specifically, when the vehicle travels to the right corner, since a strong pressure is applied to the vicinity of the lower limb of the occupant's right lower limb, the stiffness adjuster controls the rigidity to increase in the right portion of the vehicle seat adjacent to the right lower limb of the occupant. Can be.

On the other hand, since a relatively weak pressure is applied to the lower left leg of the occupant, the stiffness adjustment part can be controlled to reduce the rigidity in the left portion of the vehicle seat adjacent to the lower left leg of the occupant.

For example, by controlling the electric or magnetic field applied to the magnetorheological fluid or the electrofluid fluid 2144 in the right stiffness adjusting member 214, the stiffness is increased in the right part of the vehicle seat, and the left stiffness adjusting member 212 is controlled. By controlling the electric or magnetic field applied to the magnetorheological fluid or the electrofluidic fluid 2124), the rigidity can be reduced in the left part of the vehicle seat.

Thereafter, while the vehicle travels the right corner, the pressure information received by the pressure information receiver 330 is compared with the pressure information received by the pressure information receiver 330 when the vehicle runs in a straight course, and the pressure information receiver 330 Secondarily partially adjust the stiffness of the seat for the vehicle so that the pressure information received at the vehicle coincides with the pressure information received at the pressure information receiver 330 when the vehicle is traveling in a straight course.

For example, the vehicle seat may be used in an area where the pressure information received by the pressure information receiver 330 is larger than the pressure information received by the pressure information receiver 330 when the vehicle is traveling in a straight course, for example, the right portion of the vehicle seat. In the area where the pressure information received by the pressure information receiver 330 is smaller than the pressure information received by the pressure information receiver 330 when the vehicle is traveling in a straight course, for example, in the left portion of the vehicle seat. The rigidity of the vehicle seat can be reduced.

As described above, the rigidity of the vehicle seat is secondarily adjusted, so that the rigidity of the vehicle seat can be more precisely controlled, and the right part of the vehicle seat is prevented from being contracted by the pressure during driving of the right corner of the vehicle, thereby disturbing the occupant's posture. And excessive pressure applied to the lower right leg of the occupant.

On the other hand, with reference to FIG. 8, when the vehicle is left cornered, the vehicle seat may be controlled as follows.

When the vehicle travels to the left corner, the curvature of the ground is calculated from the position information of the vehicle obtained by the location information receiver 330, and the stiffness of the vehicle seat is primarily partially adjusted according to the calculated curvature of the ground.

Specifically, when the vehicle travels the left corner, since the strong pressure is applied to the vicinity of the lower left leg of the occupant than the vicinity of the right lower leg, the stiffness control unit is controlled to increase the rigidity in the left portion of the vehicle seat adjacent to the left lower leg of the occupant. Can be.

On the other hand, since a relatively weak pressure is applied to the vicinity of the lower right leg of the occupant, the stiffness adjustment part may be controlled to reduce the rigidity in the right portion of the vehicle seat adjacent to the right lower extremity of the occupant.

For example, by controlling the electric or magnetic field applied to the magnetorheological fluid or the electrofluid fluid 2124 in the left stiffness adjusting member 212, the rigidity is increased in the left part of the vehicle seat, and the right stiffness adjusting member 214 is controlled. By controlling the electric field or the magnetic field applied to the magnetorheological fluid or the electrofluidic fluid 2144), the rigidity can be reduced in the right part of the vehicle seat.

Thereafter, while the vehicle travels the left corner, the pressure information received by the pressure information receiver 330 is compared with the pressure information received by the pressure information receiver 330 when the vehicle travels in a straight course, and the pressure information receiver 330 Secondarily partially adjust the stiffness of the seat for the vehicle so that the pressure information received at the vehicle coincides with the pressure information received at the pressure information receiver 330 when the vehicle is traveling in a straight course.

For example, the vehicle seat may be used in an area where the pressure information received by the pressure information receiver 330 is larger than the pressure information received by the pressure information receiver 330 when the vehicle is traveling in a straight course, for example, the left part of the vehicle seat. In the area where the pressure information received by the pressure information receiver 330 is smaller than the pressure information received by the pressure information receiver 330 when the vehicle is traveling in a straight course, for example, in the right portion of the vehicle seat. The rigidity of the vehicle seat can be reduced.

As such, the rigidity of the vehicle seat can be secondarily adjusted to more precisely control the rigidity of the vehicle seat, and to prevent the left part of the vehicle seat from being contracted by pressure when driving the left corner of the vehicle, thereby disturbing the occupant's posture. And excessive pressure applied to the lower left leg of the occupant.

Furthermore, although not shown in detail, the tire and the suspension system are also provided with a stiffness adjustment part that is partially rigid, and utilizes a navigation with a 3D map function to receive information on slopes, irregularities or uneven roads, By additionally controlling the stiffness adjustment part provided in the tire and the suspension device, it is possible to improve the suppression of the vibration generated in the vehicle and the riding comfort.

As described above, the embodiments of the present invention have been described by specific embodiments, such as specific components, and limited embodiments and drawings, but these are provided only to help a more general understanding of the present invention, and the present invention is limited to the above embodiments. Various modifications and variations can be made by those skilled in the art to which the present invention pertains. Therefore, the spirit of the present invention should not be limited to the described embodiments, and all the things that are equivalent to or equivalent to the claims as well as the following claims will belong to the scope of the present invention.

10: car seat
100, 200: sheet frame
110, 210: rigidity adjustment member
112: front stiffness adjustment member
114: rear rigidity adjusting member
212: left rigidity control member
214: right rigidity control member
30: control system for vehicle seats
310: driving information receiver
320: location information receiving unit
330: pressure information receiver
340: rigidity control

Claims (9)

A pressure information receiver configured to receive in real time pressure information measured from at least one pressure sensor provided in a vehicle seat in which the occupant of the vehicle is seated;
A stiffness adjusting part which partially adjusts the stiffness of the vehicle seat from the pressure information received in real time;
A driving information receiver configured to receive driving information of the vehicle; And
A location information receiver for receiving location information of the vehicle;
Including,
The stiffness adjustment unit includes a plurality of stiffness adjustment members that are respectively disposed to correspond to the plurality of parts of the occupant in the vehicle seat,
The stiffness adjusting unit individually individually adjusts the plurality of stiffness adjusting members based on the inclination of the ground or the curvature of the ground among the position information of the vehicle,
The stiffness controller compares the pressure information received by the pressure information receiver and the pressure information received by the pressure information receiver in real time when the vehicle is flat, and the pressure information received by the pressure information receiver is flat. And a vehicle seat control system configured to secondarily adjust the stiffness of the vehicle seat so as to match the pressure information received by the pressure information receiver.
The method of claim 1,
The stiffness control unit,
When the pressure information received by the pressure information receiver is greater than the pressure information received by the pressure information receiver when the vehicle is driving on a flat surface, the rigidity of the vehicle seat may be increased.
And the stiffness of the vehicle seat is reduced in a region where the pressure information received by the pressure information receiver is smaller than the pressure information received by the pressure information receiver when the vehicle runs flat.
The method of claim 1,
The plurality of rigidity control member
A front rigidity adjusting member disposed in the vehicle seat adjacent to the occupant portion of the occupant;
A rear stiffness adjustment member disposed adjacent the hip joint portion of the occupant in the vehicle seat;
A left stiffness adjusting member disposed below the left lower leg of the occupant in the vehicle seat; And
A right stiffness adjusting member disposed under the right lower leg of the occupant in the vehicle seat;
Control system for a vehicle seat comprising a.
delete The method of claim 1,
The stiffness control unit is a control system for a vehicle seat for adjusting the stiffness of the vehicle seat in real time according to the inclination of the ground on which the vehicle is driven calculated from the position information of the vehicle.
The method of claim 1,
The plurality of rigidity control member
Magnetorheological or electrorheological fluids whose viscosity is changed by an applied electric or magnetic field; And
At least one spring made of an elastic material and disposed in the magnetorheological fluid or the electric rheological fluid;
Each of which contains
The control system of the car seat for controlling the stiffness of the at least one spring by the control of the electric or magnetic field applied to the magnetorheological fluid or the electrorheological fluid.
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