What are airbags & how it can save your life?

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An airbag could be a vehicle occupant-restraint system employing a bag designed to inflate extremely quickly, then quickly deflate during a collision. It consists of the airbag cushion, a versatile fabric bag, an inflation module, and an impression sensor. the airbag aims to supply a vehicle occupant with soft cushioning and restraint during a crash event. It can reduce injuries between the flailing occupant and also the interior of the vehicle.

 

The airbag provides an energy-absorbing surface between the vehicle’s occupants and a handwheel, control board, body pillar, headliner, and windshield. Modern vehicles may contain up to 10 airbag modules in various configurations, including the motive force, passenger, side-curtain, seat-mounted, door-mounted, B and C-pillar mounted side-impact, knee bolster, inflatable safety belt, and pedestrian airbag modules.

 

During a crash, the vehicle’s crash sensors provide crucial information to the airbag electronic controller unit (ECU), including collision type, angle, and severity of impact. Using this information, the airbag ECU’s crash algorithm determines if the crash event meets the factors for deployment and triggers various firing circuits to deploy one or more airbag modules within the vehicle. Working as a supplemental restraint system to the vehicle’s seat-belt systems, airbag module deployments are triggered through a pyrotechnic process that’s designed to be used once. Newer side-impact airbag modules carry with it compressed-air cylinders that are triggered within the event of a side-on vehicle impact.

 

Active vs Passive Safety

Airbags are considered “passive” restraints and act as a supplement to “active” restraints. Because no action by a vehicle occupant is required to activate or use the airbag, it’s considered a “passive” device. this is often in contrast to seat belts, which are considered “active” devices because the vehicle occupant must act to enable them.

 

Frontal Airbags

Frontal airbags are standard equipment all told passenger cars since the model year 1998 and altogether SUVs, pickups, and vans since the model year 1999. These airbags are mounted on the handwheel to supply protection for the driving force and on the dash to guard the passenger. Many new cars have a weight sensor for the front passenger seat that may prevent the airbag from deploying if a tiny low child is sitting there. For older cars without a weight sensor, the airbag’s force can cause injury in younger children, that the government suggests that children under 13 should ride within the back seat.

 

Side Airbags (SABs)

SABs are being offered on many new passenger vehicles. Side airbags protect passengers just in case of a side impact. There are two main types: a side torso airbag and a curtain airbag. The side torso airbag is typically located on the side of the seat and inflates between the driving force and therefore the door, to shield the person’s torso. Most cars only have these within the front seats, though some luxury models offer them within the back, as well. The curtain airbag is mounted within the roof and deploys sort of a curtain from the car’s ceiling to safeguard the person’s head. Usually, curtain airbags cover front and rear seats, though they can also protect third-row passengers in some larger vehicles.

 

Knee Airbags

Since the first 2000s, many vehicle manufacturers now include knee airbags, which are usually mounted under the wheel and deploy from under the dashboard, stopping front seat occupants’ knees from hitting the pave. this may prevent kneecaps from shattering, which may be a common injury in high-speed frontal collisions.

 

Inflatable Seat-Belts

The inflatable life belt is merely available in select models. While it gets categorized as an airbag, the inflatable life belt isn’t an airbag, it merely functions like one by deploying in an accident. Most airbags cushion passengers, but the inflatable safety harness instead helps spread an accident’s force over a wider area on an individual’s body. The result’s that the accident doesn’t feel as severe, since the force isn’t as highly concentrated.

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