Suspension system having active compensation for vibration

摘要

A suspension system for a seat (28) of a vehicle comprises a base (35), a linkage (27), and a seat (28) attached to the base (35) via the linkage (27). A pneumatic shock absorber (26) provides a respective resistance level against movement of the seat (28) with respect to the base (35) based on a corresponding pressure level of air or gas within the pneumatic shock absorber (26). A set of cylindrical members (44) are spaced apart beneath the seat (28). A tension member (42, 142) is arranged to engage the cylindrical members (44). The tension member (42, 142) is attached to the seat (28) via a bracket (34). An electric motor (40) is capable of driving one of the cylindrical members (44). A first sensor (32) is arranged to detect first sensor data associated with an instantaneous position of the seat (28) versus time. A controller (10) generates a first control signal for the electric motor (40) to change a height of the seat (28) in opposition to a change in the instantaneous position of the seat (28) and a second control signal to change the pressure level.