Damper satellites

There are 4 damper satellites:

• Damper satellite, front left (EDCSVL)
• Damper satellite, front right (EDCSVR)
• Damper satellite, rear left (EDCSHL)
• Damper satellite, rear right (EDCSHR)

The damper satellites electronically control the damping forces. The damper satellites and the EDC valves are inseparably connected to the shock absorbers. The damper satellites each have one EDC valve for the rebound stage and one for the discharge stage. Each damper satellite contains its own vertical-acceleration sensor.

Fig 1: Identifying Shock Absorbers And Damper Satellite

Courtesy of BMW OF NORTH AMERICA, INC.

Damper satellite: for example rear axle, rear right

The damper satellites have the following tasks (among others):

• activating the EDC valves on the shock absorbers (characteristic map for damping).
• internal measurement of the current (actual value) of the EDC valve. controlling to setpoint value.
• measurement of vertical wheel acceleration.