ACTIVE SUSPENSION SYSTEM

A vehicle seat suspension system including a base housing, a platform housing, and a linkage system moveably mounted between the base housing and the platform housing. The linkage system includes a center linkage, a rotary actuator drive system moveably connected to the center linkage where the rotary actuator drive system moves the center linkage over a range of travel, and a control system, where the control system actively signals the rotary actuator drive system to move the center linkage in a substantially linear relationship between an angle of rotation of the rotary actuator drive system and a vertical movement of the platform housing. The suspension system may also include sensors in operable communication with the control system.