Auto airbag technology described in simple words

By Jose Ascunce


The Supplemental Restraint System (SRS) was created to guard all drivers in the vehicle by activating when the car takes on a front-end or side impact. Your cars system is equipped with dual-stage driver-side air bag, dual-stage passenger-side air bag, right and left side-impact airbags (when option is available), left and right side-impact sensors, driver an passenger front seat belt pretensioners, driver and passenger seat belt buckle pretensioners, right and left front impact sensors, SRS unit and clockspring. When combined, all these air bags are all designed to keep you safe on impact.

In addition your car is equipped with many smart sensors. If the SRS control unit senses an impact, if necessary, it ignites the charges in the air bag modules, immediately warning the air bags to deploy. The impact sets off a sequence of events that will decide which of SRS modules to inflate. Besides deploying the airbags the front seat belt pretensioners are linked with the SRS air bag system and also protects you during the accident. Therefore , in the instant of a front end hit if there is sufficient force, the seat belts will activate immediately. The retracting seat belts forcefully repositions the occupants in their seats. Furthermore, the seat belt pretensioners, front seat belt retractors and front buckles are designed to also keep you from injury.

On some cars the side-impact air bags are found in each front seat back and on others they open from the door panels. Side-impact air bags are built to open in a savere to severe accident. Passenger side-impact air bag and passenger seats may also include an Occupant Position Detection System (OPDS).

This OPDS contains sensors and a control unit, placed in passenger's seat back, to check passenger seat's occupant height and position. If the OPDS control unit makes a determination that the passenger seat's occupants head is in the deployment path of the side-impact air bag, the side-impact air bag does not deploy. If passenger side-impact air bag is disabled, side-impact indicator light will come on. With all of these systems working simultaneously it is no wonder that the National Highway Transporation Safety Administration (NHTSA) has shown a lot fewer deaths from automobile accidents each year.

In basic terms, there is a lot of engineering that has been created for your safety while driving. However , there are many of us who take for granted on how far airbag technology has improved our safety in the last fifteen years. Airbags are actually an automotive revolutionizing wonder.




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