BMW G12 Product Information page 26

G12￿Driver￿Assistance￿Systems
7.￿Collision￿Warning
Index
a
b
1
2
The￿corresponding￿warning￿stages￿"early￿warning"￿and￿"acute￿warning"￿are￿output￿in￿critical￿situations
on￿the￿basis￿of￿the￿calculated￿positions,￿distances￿and￿relative￿speeds￿of￿other￿vehicles.￿For￿the￿early
warning￿the￿brakes￿of￿the￿vehicle￿are￿prepared￿for￿emergency￿braking￿and￿the￿activation￿thresholds￿of
the￿Dynamic￿Brake￿Control￿are￿reduced.￿If￿the￿driver￿makes￿the￿conscious￿decision￿to￿drive￿up￿close
to￿the￿vehicle￿ahead,￿warnings￿which￿may￿otherwise￿be￿distracting￿can￿be￿prevented￿by￿reducing￿the
sensitivity￿of￿the￿system.
7.1.1.￿Collision￿warning￿with￿city￿braking￿function
The￿collision￿warning￿with￿city￿brake￿activation￿(City￿Collision￿Mitigation￿option￿OE￿ZN3)￿adds￿a￿brake
activation￿function￿to￿the￿camera-based￿collision￿warning￿from￿a￿speed￿of￿roughly￿5 km/h￿up￿to￿a
maximum￿speed￿of￿80 km/h.￿If￿there￿is￿still￿no￿response￿from￿the￿driver￿in￿this￿speed￿range￿after￿an
acute￿warning￿is￿issued,￿the￿vehicle￿is￿decelerated￿at￿a￿maximum￿rate￿of￿4 m/s².
Example￿of￿vehicle￿identification￿by￿KAFAS￿camera
Index
1
2
The￿duration￿of￿the￿brake￿intervention￿is￿limited￿to￿approximately￿1.5 seconds.￿Additional￿dangers￿for
the￿traffic￿behind￿are￿therefore￿avoided.
20
Explanation
Close￿range
Long￿distance
KAFAS￿stereo￿camera￿detection￿range
Detection￿range￿of￿the￿radar￿sensor
Explanation
Vehicle￿in￿same￿lane
Vehicle￿in￿different￿lane