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: A pressurized top mount assembly is described wherein a pressurized fluid volume receives an end of a piston rod and is configured to counteract a net static force on a top mount by a suspension component which may be an active suspension actuator, a passive suspension damper or a semi active suspension damper. The pressurized fluid volume may be in fluid communication with one or more of fluid volumes in the suspension component.