JP2022020853A5

JP2022020853A5 -

Info

Publication number: JP2022020853A5
Application number: JP2021190932A
Authority: JP
Filing date: 2021-11-25
Publication date: 2022-11-02
Anticipated expiration: 2037-03-28

Claims

A vehicle seat having a seat cushion and a seat back,
a pad member that constitutes at least one of the seat cushion and the seat back and supports an occupant;
a pressure sensor sheet provided along a support surface of the pad member for supporting the load from the occupant and including a detection surface arranged to overlap the support surface;
a plurality of linear soft actuators provided along the support surface;
a control device for controlling the driving of the soft actuator ;
The detection surface of the pressure sensor sheet is provided with a plurality of pressure sensors for detecting pressure,
The control device calculates the pressure distribution applied to the detection surface based on the output of the pressure sensor, and drives the soft actuator based on the calculated pressure distribution . sheet.

The control device calculates an average value of pressure applied to each of a plurality of regions obtained by dividing the detection surface and an average value of pressure applied to the entire detection surface, and calculates the average value of pressure applied to each of the regions. and the average value of the pressure applied to the entire detection surface, and based on the difference calculated for each of the areas, the soft actuator vertically overlapping the corresponding area. 2. The vehicle seat according to claim 1, wherein the vehicle seat is driven by

When the control device detects that the average value of the pressure in the area is larger than the average value of the pressure applied to the entire detection surface, the control device extends the soft actuator overlapping the area in proportion to the difference. 3. A vehicle seat according to claim 2.

When the controller detects that the average value of the pressure in the area is smaller than the average value of the pressure applied to the entire detection surface, the control device shrinks the soft actuator overlapping the area in proportion to the difference. 4. A vehicle seat according to claim 2 or claim 3.

A vehicle seat having a seat cushion and a seat back,
a pad member that constitutes at least one of the seat cushion and the seat back and supports an occupant;
a plurality of pressure sensors provided along a support surface of the pad member that supports the load from the occupant, the electrical characteristics of which change depending on the pressure from the occupant ;
a plurality of linear soft actuators provided along the support surface;
a control device that controls driving of the soft actuator based on electrical characteristics of the plurality of pressure sensors ;
The vehicle seat, wherein the pressure sensor has a linear shape extending along the support surface, and electrical characteristics thereof are changed by tension applied in the extending direction.

The control device calculates the pressure in the area corresponding to the pressure sensor based on the electrical characteristics of the pressure sensor, and calculates the difference between the pressure in the area and the average value of the pressure applied to the entire support surface. 6. The vehicle seat according to claim 5, wherein the soft actuator located in the region is driven based on:

The control device extends the soft actuator corresponding to the area in proportion to the difference when detecting that the pressure in the area is greater than the average value of the pressure applied to the entire support surface. The vehicle seat according to claim 6.

When the control device detects that the average value of the pressure in the area is smaller than the average value of the pressure applied to the entire support surface, the control device contracts the soft actuator corresponding to the area in proportion to the difference. The vehicle seat according to claim 6 or 7, characterized by:

6. The vehicle seat according to claim 5, wherein said pressure sensor doubles as said soft actuator.

some of the plurality of soft actuators form a horizontal soft actuator group extending in the width direction of the pad member ;
The fabric according to any one of claims 1 to 8, further comprising a group of warp yarns extending in a direction orthogonal to the width direction, wherein the group of transverse soft actuators and the group of warp yarns are woven together. A vehicle seat as described in paragraph 1 above.

some of the plurality of soft actuators form a horizontal soft actuator group extending in the width direction of the pad member ;
Some of the other soft actuators form a vertical soft actuator group extending in a direction orthogonal to the width direction,
The soft actuators forming the horizontal soft actuator group and the soft actuators forming the vertical soft actuator group are interwoven with each other . Vehicle seat as described.

The seat cushion is attached to a frame provided on the floor,
The seat back is arranged above the rear part of the seat cushion and supports the back of the occupant from behind;
A headrest is provided on the upper part of the seat back,
The vehicle seat according to any one of claims 1 to 11, wherein a surface of said pad member is provided with a skin material.