passive safety and active safety

1. Safety Concepts
Passive Safety Systems
 Passive safety become active during
an accident,
 Reduce the risk of injury during the
time of impact

2. Passive Safety
Air Bag (AB)
 Consist of flexible fabric
bag
 Or cushion to inflate
rapidly during a
collision
 Modern vehicles have
multiple airbag modules
in different side.
 protect your head, neck
and chest areas. Within a
few milliseconds of the
collision

3. Passive Safety
Air Bag (AB)
 In certain cars the airbags will
deploy when the speed exceeds 200-
300 mph
 Sodium azide produces lots of
nitrogen gas
 side airbags however use an argon
gas system

4. Passive Safety
Seat Belt (SB)
 Two main ways in which a seatbelt
protect a person
 Stop the driver from being thrown
from the seat.
 Reduce the force exerted on the
body of person in a crash
 Generally used three-point seat belt
 Three-point belts help the chest,
pelvis, and shoulder

5. Passive Safety
Occupant Sensing Systems
 Detect who is sitting in the
passenger seat
 On/off switch for airbags

6. Passive Safety
Child Safety System (CSS)
 Protect children from injury
 Or death during collisions
 These seats are installed based on
end-user requirements.

7. Passive Safety
Pedestrian Safety System (PSS)
 Automatically decreases the
chances of pedestrians being hit
by the vehicle

8. Passive Safety
Head up display
 Projects images on the
windscreen

9. Passive Safety
Collapsible Steering Column
 Driver survivability in the event of a
head on collision
 While air bags provide safety to
drivers, collapsible steering columns
continue to play an important role in
enhancing driver safety.