Provided is a conveyance seat including a pelvis support member of which a state or the like is adjusted. The conveyance seat includes the pelvis support member configured to support a portion of an occupant's body where a pelvis is positioned and lumbar supports configured to move the pelvis support member. The pelvis support member includes a seat back side support portion positioned behind a back portion of the occupant, a seat cushion side support portion positioned below buttocks of the occupant, and a connection portion that connects the seat back side support portion and the seat cushion side support portion. The lumbar supports are configured to move the pelvis support member so that a position of at least one of the seat back side support portion, the seat cushion side support portion, and the connection portion is changed with respect to the portion where the pelvis is positioned.

A device for reducing a kinetosis-related disorder in a driving mode of a vehicle includes a vehicle seat with a headrest and an actuator system. The vehicle seat and/or the headrest is adjustable by the actuator system to position the headrest relative to a head of an occupant on the vehicle seat. A support region of the headrest includes a material which is elastically switchable and the material is solidifiable when a pressure is exerted on the material such that the material stiffens when the head of the occupant sinks into the support region.

A vehicle occupant posture detection (OPD) system, including: a measuring device coupled to a seat back of a seat of a vehicle and adapted to determine an angle (α) between a Z-axis and a torso line of an occupant seated in the seat by measuring an angle of the seat back; a measuring device coupled to a seat bottom of the seat of the vehicle and adapted to determine an angle (β) between the Z-axis and a femoral line of the occupant seated in the seat by measuring an angle of the seat bottom; and means for receiving and using the determined values of α and β to determine an angle (φ) between the torso line and the femoral line of the occupant seated in the seat and thereby characterize a posture state of the occupant seated in the seat.

A seat device for a vehicle includes: a support member detachably attached to a floor of the vehicle; an occupant seat movably supported by the support member and provided with an electrical component; and a wireless power supply mechanism configured to supply electric power to the electrical component. The wireless power supply mechanism includes a power transmitting unit attached to the floor, and a power receiving unit attached to the support member so as to face the power transmitting unit and configured to receive the electric power wirelessly from the power transmitting unit.

A vehicle control system includes a driving controller that switches between autonomous driving an manual driving of a vehicle, a seat whose form is changed between a form during autonomous driving and a form during manual driving that are different from each other, and a seat controller that controls motion of the seat when a form of the seat is changed. If the seat is in a form during autonomous driving, the driving controller does not switch autonomous driving to manual driving when controlling the vehicle.

A speed reducer including: a first gear; an eccentric shaft joined to the first gear, the eccentric shaft has first and second supporting portions offset in a rotation radial direction with respect to a first gear rotation shaft; a fixed gear at an eccentric shaft radial direction outer side, and whose rotation is restricted; a transmitting gear supported at the first supporting portion and meshes with the fixed gear, and the transmitting gear revolves around the first gear rotation shaft and rotates around its own axis; an outputting portion rotating due to the transmitting gear revolving and rotating around its own axis; and a locking gear supported at the second supporting portion and meshes with the fixed gear, and the locking gear revolves around the first gear rotation shaft and rotates around its own axis, and rotation of the outputting portion is restricted.

A vehicle seat having a seat bottom comprising a ramp and a stop, a slide comprising a first slide segment and a second slide segment, a movable element capable of being moved relative to the slide, the seat bottom being pivotally mounted relative to the movable element about a pivot axis, an articulation member that is stationary relative to the slide member, and a pivoting connecting rod having a first end that is articulated to the articulation member and a second end able to slide against the ramp during the movement of the movable element on the first slide segment, the pivoting connecting rod being shaped to push against the ramp and cause the rotation of the seat bottom during the movement of the movable element on the second slide segment, the second end of the connecting rod bearing against the stop.

A vehicle seat console for a vehicle seat has a seat part and a backrest which is attached thereto and which can be moved out of a substantially upright seating position into a rest or reclined position. The vehicle seat console has at least one vehicle structure-side securing element which is connected or can be connected to a vehicle structure and a seat-side securing element which is connected to or can be connected to the vehicle seat. The seat-side securing element is coupled to the vehicle structure-side securing element via an asymmetrically acting height adjustment device such that the seat-side securing element can be tilted about a transverse axis.

A motion sickness mitigation method for the purposes of mitigating motion sickness of a vehicle occupant travelling in a motor vehicle includes moving at least a portion of a backrest, a portion of a seat squab, a portion of a head restraint, a portion of an armrest and/or a portion of a footrest as a function of a detected and/or an anticipated driving situation of the motor vehicle, in each case proceeding from a starting position in at least one spatial direction. The movement is situational on the basis of an actual or anticipated trajectory of the motor vehicle.

This vehicle seat control device is provided with a storage unit, a position detection unit, a control unit, and an operation order setting unit. The space on a seat occupied by a passenger sitting in the seat is a sitting passenger-occupied space, and during the execution of an automatic operation, the operation order setting unit is configured to set the operation order such that position adjustments of seat elements operated in the direction of advancing into the sitting passenger-occupied space are started at the same time as, or are started after, the starting of the position adjustments of the seat elements operated in the direction moving away from the sitting passenger-occupied space.