brake sensor CITROEN C1 2021 Owners Manual

110
C1_en_Chap06_securite_ed01-2016
Active City Brake
Active City B rake  i s  a  d riving  a ssistance  s ystem  t
hat   aims   to   avoid   a   frontal   collision   or   reduce  
t

he   speed   of   an   impact   if   the   driver   does   not  
r

eact   or   reacts   too   late   (brake   application   too  
l

ate). This
  system   is   designed   to   improve  
d

riving   safety.
It
  remains   the   driver's   responsibility   to  
c

ontinuously   monitor   the   state   of   the  
t

raffic   and   to   assess   the   distances   and  
r

elative   speeds   of   other   vehicles.
Active
  City   Brake   can   in   no  
c

ircumstances   replace   the   need   for  
v

igilance   on   the   part   of   the   driver.
Never
  look   at   the   laser   sensor   through  
a

n   optical   instrument   (magnifying   glass,  
m

icroscope...)   at   a   distance   of   less   than  
1

0   centimetres:   risk   of   eye   injury.Automatic
  braking   occurs   later   than   if  
d

one   by   the   driver,   so   as   to   intervene  
o

nly   when   there   is   a   high   risk   of  
c

ollision.Principle
Using a laser sensor and a camera located at the   top   of   the   windscreen,   this   system   detects  
a

  vehicle   running   in   the   same   direction   or  
s

tationary   ahead   of   your   vehicle.
When
  necessary,   the   vehicle's   braking   system  
i

s   operated   automatically   to   reduce   the   speed  
o

f   impact   or   to   help   avoid   a   collision   with   the  
v

ehicle
 a
head.
Conditions for activation
Active City Brake only operates if the following
c onditions   are   met:
●
 
t
he   engine   is   running,
●
 
t
he   vehicle   is   in   a   for ward   gear,
●
 
t
o   trigger the pre-collision alert :
-
 
t
he   speed   is   between   9   and   87   mph  
(

15 and   140   km/h),
-
 
t
he   difference   in   speed   between   your  
v

ehicle   and   the   one   ahead   is   more   than  
a

bout   9   mph   (15   km/h),
●
 
f
or   braking assistance :
-
 
t
he   speed   is   between   about   18   and  
5

0 mph   (30   and   80   km/h),
-
 
t
he   difference   in   speed   between   your  
v

ehicle   and   the   one   ahead   is   more   than  
a

bout   18   mph   (30   km/h),
●
 
f
or   automatic pre-collision braking:
-
 
t
he   speed   is   between   about   6   and  
5

0 mph   (10   and   80   km/h),
-
 
t
he   difference   in   speed   between   your  
v

ehicle   and   the   one   ahead   is   more   than  
a

bout   6   mph   (10   km/h),
●
 
t
he   braking   assistance   systems   (ABS,  
E

BFD,   EBA)   are   not   faulty,
●
 
t
he   trajectory   control   systems   (TRC,   DSC)  
a

re   not   deactivated   or   faulty,
●
 
t
he   vehicle   is   not   in   a   tight   corner,
●
 
t
he   system   has   not   been   triggered   during  
t

he   previous   10   seconds.
Safety