SYSTEM CONSTRUCTION
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)52B-11
CURTAIN AIR BAG MODULE
M2521000500088
AC401546
AC207337AC207332
AC207338
Split hole
Burst disk 2Squib
Propellant
Burst disk 1
Curtain air bag moduleInflator
AB
High-pressure gas
The curt ain air b ag module co nsist s o f an a i r ba g, an
infla
t or , an d the f i xing ge ar rela ting to those p a rt s,
and is in
st alled in the roo f side sections (from t he
driver's an
d the p a sse nger's front p illars to the re ar
pill
ars).
The air bag is made f r om nylon with th e inside
coate
d with silico n, and housed in the roo f side sec
-
tions, folded up comp actly .
The inflato r is of a hybrid type filled wit h hig h -pres-
sure ga s (majo r compone nt: argo n). Whe n curr ent
p
a ss es t h ro ug h t h e sq ui b t o ig ni te th e ig n i t e r po wde r ,
burst
disk 1 b u rst s . T hen, th e co mbustion of the
i
gni ter powder increases the pres sure of the filler gas
to burst disk 2
, lett ing th e gas out o f the split hole.
CURTAIN AIR BAG DEPLOYMENT
IGNITION
AC304629
if an imp a ct in a side collision is de tecte d b y the rear
side
imp a ct senso r inst a lled inside a inn e r quart e r
p
a n e l an d by the side-a i rbag safing G-sen s or inte
-
grated in the SRS-ECU, the SRS-ECU se nds a n igni-
tion signal to th e squib o f th e re levant curt ain a i r bag
mo
du le. Wh en t h is ig nition sign al p a sses t h r o u g h t h e
squib, the
inflator ge nerates gas.
INFLATING
AC304630
The air bag st art s to a ppear p u shing away a he adlin-
ing.
COMPLETION OF INFLATION
AC304631
The air bag fu lly in flates to p r otect the he ads of the
occup
ant s in the fro n t and rear seat s.
