What are the main components of the airbag?

The airbag is mainly composed of sensor, microprocessor, gas generator and airbag. The sensor and the microprocessor are used for judging the collision degree and sending signals; The gas generator generates an ignition action according to the signal indication, ignites the solid fuel and generates gas to inflate the airbag, so that the airbag expands rapidly, and the airbag is equipped with a safety valve. When the airbag is over-inflated or the pressure in the airbag exceeds a certain value, it will automatically release part of the gas to avoid squeezing passengers and causing injuries. The gas used in the airbag is mainly nitrogen or carbon monoxide.