How do you design a control strategy for an active suspension system?

Active suspension control design involves: Defining control objectives (ride comfort, handling, road holding), developing a state-space vehicle model including heave, pitch, roll, and wheel hop modes, selecting control architecture (skyhook, groundhook, H-infinity, model predictive control), designing observers for unmeasured states, tuning controller gains considering actuator bandwidth and power limits, implementing preview control if look-ahead sensors available, developing mode switching logic for different driving conditions, and validating through simulation and vehicle testing. The design must address fail-safe behavior and energy management constraints.