The technology described in this document can be embodied in a method for controlling acoustic output radiating through an adjustable wing of a seat headrest. The method includes receiving, from a sensor disposed in the seat headrest, an input signal indicative of a position of the adjustable wing. The position can be one of multiple positions within an angle range. The method also includes updating, based on the input signal, values for one or more control parameters associated with a transducer that generates the acoustic output radiating through the adjustable wing, and adjusting the transducer in accordance with the position of the adjustable wing using one or more control signals that are generated based on the updated values of the one or more control parameters.

A seat adjustment system for a vehicle seat is provided. The seat adjustment system includes a seat body; at least one actuating unit, configured to adjust a support of the seat body; a sensing unit, configured to obtain and provide seat information and body shape data of a back of an occupant; and a control unit, configured to control the at least one actuating unit; wherein when one parameter of the seat body changes, the control unit makes a portion of the body shape data of the occupant in a pre-defined range via the at least one actuating unit.

A seat adjustment system for a vehicle seat is provided. The seat adjustment system includes a seat body; at least one actuating unit, configured to adjust a support of the seat body; a sensing unit, configured to obtain and provide seat information and body shape data of a back of an occupant; and a control unit, configured to control the at least one actuating unit; wherein when one parameter of the seat body changes, the control unit makes a portion of the body shape data of the occupant in a pre-defined range via the at least one actuating unit.

Described are passenger seat headrest assemblies and seats including headrest assemblies having a semi-rigid flap fixedly connected with an upper portion of the seat back or headrest assembly at a first location and movably connected with the seat back or headrest assembly at a receiving element separated from the first location. The distance of the movable connection from the first location can be adjusted to cause the flexible headrest assembly to flex outward from the seat to provide a greater or lesser degree of support for a passenger.

Described are passenger seat headrest assemblies and seats including headrest assemblies having a semi-rigid flap fixedly connected with an upper portion of the seat back or headrest assembly at a first location and movably connected with the seat back or headrest assembly at a receiving element separated from the first location. The distance of the movable connection from the first location can be adjusted to cause the flexible headrest assembly to flex outward from the seat to provide a greater or lesser degree of support for a passenger.

For the purpose of simplified production of a motor vehicle seat which can be used in a versatile manner, with a seat part, a backrest and a headrest, the seat part and/or the backrest and/or the headrest have or has a number of chambers which are produced additively from an elastic material, particularly preferably silicone and/or a polyurethane, and which are in each case designed to be filled at least temporarily with a fluid.

For the purpose of simplified production of a motor vehicle seat which can be used in a versatile manner, with a seat part, a backrest and a headrest, the seat part and/or the backrest and/or the headrest have or has a number of chambers which are produced additively from an elastic material, particularly preferably silicone and/or a polyurethane, and which are in each case designed to be filled at least temporarily with a fluid.

A self-driving or autonomous vehicle comprises a seat movable between an upright position and a reclined position and a ceiling display for displaying user interface elements and for receiving user input when the seat is in the reclined position. The ceiling display may be slidable and/or pivotable. The ceiling display may automatically move when the seat is reclined.

A self-driving or autonomous vehicle comprises a seat movable between an upright position and a reclined position and a ceiling display for displaying user interface elements and for receiving user input when the seat is in the reclined position. The ceiling display may be slidable and/or pivotable. The ceiling display may automatically move when the seat is reclined.

A quickly installed headrest adjustment device includes a mount case connected to the chair back and includes a recessed area, an engaging hole, a latch and a first contact face on the rear side of the chair back. The engaging hole is located between the two side slots and defined through the inner bottom of the recessed area. The latch is connected to the inner top side of the engaging hole and includes a bottom face which protrudes beyond the engaging hole and faces the inner side of the recessed area. An adjustment device is mounted to the rail and includes a second contact face facing the first contact face, two ridges, and a block. The block is located between the two ridges. The users can connect the adjustment device to the mount case of the chair back to quickly install the headrest unit to the chair back.