Safety Safety Features in VehiclesFeatures in Vehicles

Learning outcomesLearning outcomes

Describe the importance of Describe the importance of safety features in vehiclessafety features in vehicles

Understand the components of Understand the components of safety features in vehiclessafety features in vehicles

Labeled the components of Labeled the components of safety features in vehiclessafety features in vehicles

IntroductionIntroduction

Cars today are Cars today are much safer to much safer to travel in than cars travel in than cars ten or twenty years ten or twenty years ago. ago.

As a result of crash As a result of crash tests, designs have tests, designs have changed and are changed and are still changing.still changing.

What can we do to prevent What can we do to prevent injuries in car crash?injuries in car crash?

Anti-braking system (ABS)Anti-braking system (ABS)

Allows the wheels to Allows the wheels to continue interacting continue interacting with the road with the road surface as directed surface as directed by driver by driver while braking, while braking, preventing the preventing the wheels from wheels from skidding.skidding.

Crumple ZonesCrumple Zones Crumple zones were first Crumple zones were first

introduced in 1959. introduced in 1959.

Easily crushed to increase Easily crushed to increase the time interval of impact. the time interval of impact.

In doing so, In doing so, the force of the the force of the collision would be diverted collision would be diverted away from the passenger's away from the passenger's compartment, thereby compartment, thereby keeping him or her from keeping him or her from serious injury. serious injury.

Seat beltsSeat belts The seat belt was The seat belt was

introduced by Nash introduced by Nash Motors in 1949.Motors in 1949.

Seat belts work in the Seat belts work in the same principle as same principle as crumple zones. crumple zones.

Help to hold the Help to hold the passengers in their passengers in their position during collision position during collision and prevent them from and prevent them from being thrown forward being thrown forward due to inertia.due to inertia.

AirbagsAirbags

Airbags Airbags help cushion help cushion the impact, reducing the impact, reducing your momentum more your momentum more slowly so that the slowly so that the force is less.force is less.

Airbags are intended Airbags are intended to be used as a to be used as a supplementary device supplementary device to the seatbelt.to the seatbelt.

Side Impact BarSide Impact Bar

Absorbs impact Absorbs impact to prevent to prevent damage to the damage to the carcar

Longer the time Longer the time of impact and of impact and hence will hence will reduce the reduce the impulsive forceimpulsive force

WindscreenWindscreen Made of shatter-Made of shatter-

proof glass so that proof glass so that it will not break it will not break into pieces easilyinto pieces easily

This will reduce This will reduce injuries caused by injuries caused by the pieces of glass the pieces of glass which scatter which scatter during collisionduring collision

Padded DashboardPadded Dashboard

Increase time Increase time interval of interval of collision so that collision so that the impulsive the impulsive force produced force produced is reducedis reduced

HeadrestHeadrest

Prevent the Prevent the passengers from passengers from suffering severe suffering severe neck injuries neck injuries

Are you ready to play games?Are you ready to play games?

What have you learnt today?What have you learnt today?