Abstract: Various systems and methods are disclosed for predicting, detecting or mitigating motion sickness of one or more occupants of a vehicle. Also, disclosed are systems and methods for measuring aspects of head motion and characteristics of at least one eye an occupant of a vehicle and using that information mitigate motion sickness.

Abstract: The present disclosure discusses an active seating system that includes a load leveling mechanism. The load leveling mechanism includes a force bias actuator assembly, a roll actuator assembly, a heave actuator assembly, a first torsion rod connected to the force bias actuator and the roll actuator, and a second torsion rod connected to the force bias actuator and the heave actuator. Each of the force bias actuator assembly, roll actuator assembly, and heave actuator assemblies comprises a housing, a DC motor disposed within the housing, and a ball screw with a driveshaft, the driveshaft of the ball screw being coaxial with a rotor of the DC motor. The active seating system also includes a seat top and an interface configured to mount the seat top to the load leveling mechanism.

Abstract: Embodiments related to active seat suspensions as well as their methods of operation are disclosed. In one particular embodiment, a failure state of an active seat suspension may be detected after which operation of one or more actuators of the active seat suspension may be limited in response to the detected failure state. In another embodiment, a crash or imminent crash of a vehicle may be detected and an active seat suspension may be operated to lower a seat connected thereto to lower the seat toward an underlying portion of the vehicle. In yet another embodiment, operation of an active seat suspension may be limited to reduce a temperature of the active seat suspension when a rate of change and/or a magnitude of a sensed temperature of an actuator of an active seat suspension is greater than a predetermined threshold.

Abstract: Embodiments related to systems and methods for controlling the relative amounts of rotation and heave motions applied to a seat by an active seat suspension system are described.