Actuators can be used in controlling a seat surface of a vehicle seat. The actuators can have an outer skin in connection with a hinge assemblies. The actuators can include a shape-memory material (SMM) member operatively connected to the hinge assemblies. The SMM member can be a shape-memory alloy (SMA) wire. The SMM member can change from a first configuration to the second configuration in response to an activation input, such as heat. The input can be delivered to the SMM member upon detecting an activation condition, such as detection of lateral acceleration. The actuators are operatively positioned relative to a seat surface such that, when the SMM member changes configuration, actuator causes the seat surface to morph.

A vehicle seat comprising: a seat cushion; a seat back; an actuator capable of changing an orientation of the seat back laterally by moving a pressure-receiving member; and a controller configured to exercise control over the actuator. The controller includes a posture control unit configured to execute, during turning of a vehicle, a seat posture control under which the actuator is caused to move the pressure-receiving member from an initial position to an advanced position to cause the seat back to orient toward a turning direction. The posture control unit is configured to activate, when an execution time of the seat posture control has become equal to or greater than an execution time threshold value, a control under which the actuator is caused to move the pressure-receiving member from the advanced position to an intermediate position to reversely change the orientation of the seat back.

A seat assembly includes a seat having a seat base and a seat back, an electronic control unit (ECU), a sensor assembly, and/or a response assembly. The ECU may be configured to determine via the sensor assembly whether an occupant disposed in the seat is in a first state, a second state, or a third state. The ECU may be configured to control the response assembly to change the state of said occupant from the first state to the second state and from the third state to the second state. The ECU may be configured to determine at least one of a breathing rate, a heart rate, and a heart rate variability of said occupant via the sensor assembly.

A foamless seating assembly includes a frame having an inner support member and an outer support member. A first plurality of flexible straps extend about the inner support member of the frame. A second plurality of flexible straps extend about the outer support member of the frame. At least one flexible strap of the second plurality of flexible straps of the outer support member are adjacent to at least one flexible strap of the plurality of flexible straps of the inner support member. A tension assembly is operably coupled with the flexible straps and configured to apply tension to the straps simultaneously.

To improve comfort, a motor vehicle seat has at least one cushion body, at least one cover concealing the cushion body at least in part, and at least one tensioner, which is operatively connected to the cover by a first end and is designed to adjust the cover tension. The tensioner is fixed by a second end to a clamping device. The clamping device is designed to modify and fix the distance of the tensioner from the first end thereof to the second end thereof and the clamping device is designed to be operated after completion of the motor vehicle seat.

A system for a seat of a vehicle includes a seat cushion, a seat cover, and a valve. The seat cushion forms at least part of a bottom of the seat. The seat cover encloses the seat cushion and forming a barrier to airflow out of the seat cushion. The seat cover forms a top surface of the seat bottom, a bottom surface of the seat bottom, and side surfaces of the seat bottom. The valve extends through the seat cover and is configured to regulate airflow out of the seat cushion through the valve.

A system for reducing driver fatigue in a seat includes an electric reclining device configured to recline a seat back, an electric extension device configured to move an extension unit formed at a front end part of a seat cushion forward and backward, an air cell device including a plurality of air cells installed in the seat back to be expandable, and a controller configured to control driving of the reclining device, the extension device, and the air cell device in a designated driving pattern to implement a driver fatigue reduction posture of the seat.

The object of the invention is to provide a vehicle seat which can improve degree of freedom in the design of the vehicle seat. A vehicle seat with a seat cushion and a seat back includes: right and left side frames 20 constituting right and left frames of the seat back; a pressure-receiving member 40 disposed between the right and left side frames 20 and configured to receive a load from an occupant; and a driving mechanism 50 disposed at each of right and left sides of the pressure-receiving member 40 and configured to cause a right end portion or a left end portion of the pressure-receiving member 40 to move from an initial position to an advanced position that is located frontward of the initial position or to move from the advanced position to the initial position, wherein the driving mechanism 50 includes a linkage (drive link member 100 and contact link member 200) configured to be connected to the pressure-receiving member 40 and a driving source 52 configured to actuate the linkage, and wherein the linkage is configured to operate when a load equal to or greater than a predetermined amount is input from the occupant to the pressure-receiving member 40 to cause the pressure-receiving member 40 to move to a backward position that is located rearward of the initial position.

A system for a seat of a vehicle includes a seat cushion, a seat cover, and a valve. The seat cushion forms at least part of a bottom of the seat. The seat cover encloses the seat cushion and forming a barrier to airflow out of the seat cushion. The seat cover forms a top surface of the seat bottom, a bottom surface of the seat bottom, and side surfaces of the seat bottom. The valve extends through the seat cover and is configured to regulate airflow out of the seat cushion through the valve.

A vehicle seat includes: a seat cushion; a seatback that is rotatably connected to a seat rear side of the seat cushion; a headrest that is provided at a seat upper side end portion of the seatback, and that is configured to support a head portion of a vehicle occupant; and a hardness changing section that changes a hardness of a seat front side of the headrest by compressing a pad at an interior of the headrest, in a case in which an angle of inclination of the seatback with respect to the seat cushion is smaller than a predetermined angle, and canceling a compressed state of the pad, in a case in which the angle of inclination is larger than the predetermined angle.