How an car Air bags works ?

 We know that generally the air bags are provided for safety and how can  that functioning can you know ?

Generally before 1970 there are no air bags for cars.After 1970 they introduced air bags feature in United States of america.

First air bag car.

*They lanced year of in 1973 first driver side air bag.

*GM's Oldsmobile Toronado was first air bag car in usa of domestic vehicle.

*Oldsmobiles and Buicks in 1975 and 1976, respectively. Cadillacs became available with driver and passenger airbags options during those years as well.

*These system has been 100% safe to the passenger.

Do's for procedure for air bag activation.

*Keep the seat belt is mandatory and compulsory

 to active the air bag.

*If you don't keep the seat belt these air bags are not able to open.

*Maintain the speed limit as per limit given on the roads.

*Follow the traffic rules and safe requirements while driving the vehicle 

Inventory.

*The first air bag invented by the Japanese person mr.kobari.

*The first tester of air bag is inflatable crash-landing device for airplanes was filed during World War II. In 1973, the first commercial airbags appeared in a run of 1,000 Chevrolet Impalas.

*Now a days the they full packed aur bags are available right now.

How it's an work?

                  Functioning 

 1.Crash sensor.    

            2.Inflator

              3.airbag

           

                       

Crashes trip to the sensor in car can indicate the electric signal to an inhibitor and inform to generate the heat.

 

Chemical reactions.

*That heat will cause to the sodium metal and nitrogen gas and which inflates the car air bags.

*The air bag reaction within the 30 milliseconds.

*The chemical equation 2Nan3--2Na--3N2 a handle of 130 grams of sodium azide will produce 67 litres of nitrogen gas which is enough to inflate a normal Air bag 

Note: That's not only the chemistry involved notice that other chemical into which sodium azide falls apart Na.

Sensors:

*These sensors in the front of the automobile that detect a collision.

*These sensors reation time 0.03milliseconds to 0.05milliseconds.

*In rear cases the reaction time is 0.05 milliseconds when it's accident.

Note:These sensors are activated when seat belt is kept at driver or passengers.(SEAT BELT IS MANDATORY.)

*If in case seat belt has been not kept the air function will not able to work.

Engineering involvement.

*Air bags are located under the steering and now a days the air bags totally cover over the car boys for safety purpose.

*Generally it is not visible these air bags are packed.

*Generally in India will test the cars with given global n-cap for safety rules and regulations purpose.

Algorithm used in these system.

*The algorithm commands and airbags development and arming function.

*The SDM concurs to produce electric power the generally these in between 8 to 40 milliseconds of initial impact.

 

*Now a days generally they consists so many locations of airbags

There are several types of airbags

*FRONT AIRBAGS.

*SIDE AIRBAGS.

*CURTAIN AIRBAGS.

*REAR SEAT AIRBAGS.

*VEHICLE OUTSIDE AIRBAGS.

Now a days they implementing the vehicle outside  airbag to protect free from damage.

There can be up to a total of 16 airbags in a modern car. Although the first generation of airbag models only had front impact protection, newer models can have front and side, front and rear, front, or side and rear airbags, depending on the make and model of the car, as well as its safety features.