BMW F97 - General Vehicle Electronics; Bus Systems and Information Displays

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.