How Does a Car Airbag Work?

1 Answers
BrynleeLee
07/30/25 4:34am
How a car airbag works: During driving, the sensor system continuously sends speed change information to the control unit, which analyzes and evaluates this data. When the measured acceleration, rate of speed change, or other indicators exceed predetermined thresholds, the control unit sends an ignition command to the gas generator, triggering a rapid chemical reaction that produces a large volume of gas to inflate the airbag. The vent holes in the airbag then dampen the impact energy to protect occupants. The airbag system is a passive safety protection device that, when used in conjunction with seat belts, provides effective collision protection for vehicle occupants.
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