BMW G12 - Collision Warning Operation

G12�Driver�Assistance�Systems
7.�Collision�Warning
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The�camera-based�collision�warning�is�part�of�the�Active�Driving�Assistant�optional�equipment
(OE5AS)�in�the�G12�and�is�implemented�using�the�KAFAS�stereo�camera.
The�collision�warning�in�the�new�BMW�7�Series�contains�the�familiar�"Collision�warning�with�city
brake�activation"�and�the�"Pedestrian�warning�with�city�brake�activation"�functions.
In�vehicles�with�the�Active�Cruise�Control�with�Stop&Go�function�optional�equipment�(OEZN7),
the�cruise�control�radar�sensor�is�also�used�to�control�the�collision�warning.
Vehicles�with�the�Active�Driving�Assistant�Plus�optional�equipment�(OE5AT)�have�the�Active�Cruise
Control�with�Stop&Go�function�optional�equipment�(OEZN7)�integrated�as�standard.
If�the�vehicle�is�not�equipped�with�the�Active�Driving�Assistant�(OE5AS)�or�Active�Driving�Assistant
Plus�(OE5AT)�optional�equipment,�but�does�have�the�Active�Cruise�Control�with�Stop&Go�function
optional�equipment�(OEZN7),�the�customer�also�receives�a�collision�warning.�However,�in�this�case
the�pedestrian�warning�is�not�included.
The�system�warns�the�driver�in�situations�where�a�collision�is�imminent.�The�early�warning,�a�visual
signal,�is�issued�first�to�draw�the�driver's�attention�to�the�situation.�If�the�situation�becomes�more
critical,�an�acute�early�warning�in�the�form�of�a�visual�and�acoustic�signal�is�issued.�The�nature�of�the
warning�is�such�that�the�driver�can�still�prevent�a�collision�providing�he�acts�quickly.
7.1.�Functional�principle
The�KAFAS�stereo�camera�captures�the�scene�in�front�of�the�vehicle�and�detects�entire�rear�views
of�moving�and�stationary�vehicles�in�the�field�of�view�using�image�processing.
In�vehicles�with�the�Active�Cruise�Control�with�Stop&Go�function�optional�equipment�(OEZN7),�in
addition�to�the�KAFAS�stereo�camera�image�data,�information�from�the�radar�sensor�is�also�evaluated.
G12�schematic�diagram�of�the�monitoring�ranges