BMW F12 2011 Technical Training Manual page 47

F12￿Chassis￿Dynamics
5.￿Steering
5.2.3.￿EPS￿with￿24￿V
F12￿Electric￿Power￿Steering￿(EPS)￿with￿active￿steering
Index
1
2
3
4
5
6
7
As￿with￿the￿F10￿higher￿steering￿forces￿are￿required￿due￿to￿the￿active￿steering￿at￿the￿front￿axle,￿12￿V
power￿steering￿would￿no￿longer￿be￿sufficient.￿An￿EPS￿with￿24￿V￿power￿supply￿is￿therefore￿used￿in￿the
F12￿in￿conjunction￿with￿the￿optional￿equipment￿Integral￿Active￿Steering￿(2VH).
The￿necessary￿components,￿an￿auxiliary￿battery￿with￿charger￿and￿a￿separator,￿are￿installed￿in￿the￿lug-
gage￿compartment￿of￿the￿F12.
Explanation
Reduction￿gear
Active￿Steering￿lock
Steering-torque￿sensor
Active￿Steering￿servomotor￿with￿motor￿angular￿position￿sensor
Track￿rod
EPS￿control￿unit
Electric￿motor￿with￿motor￿position￿sensor
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