EV Dictionary: Dampers

Adaptive Dampers (CDC/CCD)

Adaptive dampers vary their force characteristic using electronic control, sensor data, and selected vehicle modes.

Damper Force–Velocity Curve

A force–velocity curve shows how damper force changes with shaft speed and direction.

Frequency-Selective Damping (FSD)

Frequency-selective damping passively changes damper response for different patterns of suspension motion.

Linear, Digressive, and Progressive Damping

These terms describe how damper force changes as shaft velocity rises.

Low-Speed and High-Speed Damping

These damping regions refer to damper-shaft velocity, not the vehicle's road speed.

Magnetorheological Dampers

Magnetorheological dampers use a magnetic field to vary fluid resistance and damping force in real time.

Monotube and Twin-Tube Dampers

These damper layouts use different working, gas, and compensation-chamber arrangements.

Passive Suspension

A passive suspension has no controller changing its mechanical behavior in real time.