F97/F98�Complete�Vehicle
5.�Chassis�and�Suspension
59
Index
Explanation
1
Vertical�acceleration�sensor,�front�left
2
Ride�height�sensor,�front�left
3
EDC�control�valve,�front�left
4
EDC�control�valve,�front�right
5
Front�right�vertical�acceleration�sensor
6
Body�Domain�Controller�(BDC)
7
Power�distribution�box,�front
8
M�vertical�dynamic�platform�(M�VDP)
9
Rear�right�vertical�acceleration�sensor
10
EDC�control�valve,�rear�right
11
Power�distribution�box,�rear
12
EDC�control�valve,�rear�left
13
Ride�height�sensor,�rear�left
14
Rear�left�vertical�acceleration�sensor
15
EDC�button
16
Steering�column�switch�cluster�(SZL)
System�function
The�Electronic�Damper�Control�(EDC)�is�a�variable,�electronically�controlled�shock�absorber
adjustment�system�that�controls�the�vertical�dynamics.�The�front�axle�damper�and�rear�axle�damper
can�be�controlled�independent�of�each�other.�The�EDC�adapts�the�damping�forces�of�the�shock
absorber�more�or�less�instantly�to�the�changing�road�or�driving�conditions.
The�EDC�consists�of:
•
4�continuously�variable�shock�absorbers�with�coupled�rebound/compression�stage�adjustment
•
M�VDP�control�unit
•
2�vertical�acceleration�sensors�on�the�front�axle�(swivel�bearing)�for�determining�the�wheel
movement
•
2�vertical�acceleration�sensors�on�the�rear�axle�(wheel�bearing)�for�determining�the�wheel
movement
•
2�ride�height�sensors
•
Body�Domain�Controller�as�gateway.
