A seat assembly may include a seat, a first bladder assembly connected to the seat, a second bladder assembly connected to the seat, and/or an electrical control unit (ECU) configured to independently control the first bladder assembly and the second bladder assembly. The ECU may be configured to maintain a level of inflation of the first bladder assembly to provide a hugging effect to a user of the seat while inflating and deflating the second bladder assembly to guide breathing of said user.

A massage cell arrangement for a vehicle seat comprising a plurality of inflatable/deflatable fluid cells arranged in a series of successive fluid cells. The fluid cells are arranged to overlap with one another such that in each pair of successive cells a first cell and a second cell are partially covering each other. A portion of the fluid cells are multi-cells comprising at least two connected fluid cells comprising at least a base fluid cell and a top fluid cell, wherein internal spaces of the fluid cells of the multi-cell are in fluid communication with each other and the top fluid cell and the base fluid cell are arranged in such that the top fluid cell partially covers a major surface of the base fluid cell.

In one or more embodiments, the present invention provide a versatile travel pillow that provides support to the user's head, neck, and shoulders, prevents the user from sliding sideways with respect to the seat, can be quickly and easily secured to the headrest or armrest of a seat or chair, and can be quickly and easily moved from one vehicle seat to another.

A massage cell arrangement comprising a plurality of inflatable/deflatable cells arranged in a first series of successive cells, a plurality of inflatable/deflatable cells arranged in a second series of successive cells, the cells of a series of successive cells being substantially aligned along the main direction of extension of the series of successive cells, the first and second series being aligned such that the main direction of extension of the first series coincides with the main direction of extension of the second series, the first and second series being arranged such that two successive cells of the first series together cover 10-100% of a major surface area of a cell of the second series and wherein each of said two successive cells of the first series cover 5-95% of the major surface area of said cell of the second series.

To better fulfill a sleep-inducing function for a seated person, a seat device includes a pressing device provided in a seat back and configured to press a back or a waist of a seated person to induce breathing; at least one of a temperature adjusting device configured to change a temperature of a seat cushion and/or the seat back and a shape adjusting device configured to change a surface shape of the seat cushion and/or the seat back; and a controller configured to control the pressing device to press the back or the waist of the seated person at a set cycle corresponding to a breathing cycle of a person at a sleeping time, and control the at least one of the temperature adjusting device and the shape adjusting device.

An air bag includes a bag portion formed by bonding two sheet members together. The bag portion includes an expansion portion including an annular joining portion extending in an annular shape, and a passage portion including a pair of parallel linear joining portions and connected to the expansion portion. Air filled in the bag portion flows through an internal space of the expansion portion surrounded by the annular joining portion and a passage sandwiched between the linear joining portions defining the passage portion. At a connection portion between the expansion portion and the passage portion, the linear joining portions extend in parallel, or the linear joining portions extend so as to expand toward a deep side of the passage from an opening position of the passage with respect to the internal space of the expansion portion.

In a configuration in which a holder holding a controller is mounted on a seat part with a plate-shaped member, the exposure of the mounting part of the plate-shaped member on which the holder is mounted is eliminated. A seat device includes a pressure sensor measuring a value relating to the seated person's state, a vibration imparting device performing a vibration imparting operation, an ECU controlling the vibration imparting device corresponding to the measurement result of the pressure sensor, a holder holding the ECU, and a mounting bracket fixed to a lower frame such that the holder is mounted on the lower frame of a seat part. The mounting bracket includes a mounting projection on which side wall of the holder is mounted in a predetermined mounting direction. When the side wall is mounted on the mounting projection, the mounting projection is covered with the side wall.

In a configuration in which a holder holding a controller is mounted on a seat part with a plate-shaped member, the exposure of the mounting part of the plate-shaped member on which the holder is mounted is eliminated. A seat device includes a pressure sensor measuring a value relating to the seated person's state, a vibration imparting device performing a vibration imparting operation, an ECU controlling the vibration imparting device corresponding to the measurement result of the pressure sensor, a holder holding the ECU, and a mounting bracket fixed to a lower frame such that the holder is mounted on the lower frame of a seat part. The mounting bracket includes a mounting projection on which side wall of the holder is mounted in a predetermined mounting direction. When the side wall is mounted on the mounting projection, the mounting projection is covered with the side wall.

A safety system and control method for a pneumatic seat of a vehicle, and a computer-readable medium, the pneumatic seat (10) including a plurality of airbags (101, 102, 103, 104, 105, and 106) corresponding to body parts of an occupant, an information collection module, an information integration module (3), and a control module (4), where the information collection module is configured to collect vehicle body data, motion information, and external environment information of the vehicle, the information integration module (3) is configured to determine a current working scenario of the vehicle based on the vehicle body data, the motion information, and the external environment information; and the control module (4) is configured to inflate a seat cushion airbag (105) when it is determined that the current working scenario is a first working scenario, so as to partially deploy the seat cushion airbag (105); and is configured to fully inflate and deploy the seat cushion airbag (105) when it is determined that the current working scenario is a second working scenario.

A method for controlling at least two mechanical oscillators, more particularly in a motor vehicle, where each oscillator oscillates at a frequency during operation and where the frequency can be controlled by the power applied to the oscillators, includes arranging a single sound transducer at a distance from the oscillators and capturing an electrical signal, where the electrical signal is subjected to a Fourier transform and thus a Fourier spectrum is determined. The frequency of each oscillator is determined from extreme values of the Fourier spectrum.