What is an airbag device?

2 Answers
LaCharlie
07/24/25 5:02am
Airbags, like seat belts, are typical passive safety protection devices. The English name for airbags is SRS, which stands for Supplemental Inflatable Restraint System. The original meaning is Supplemental Restraint System, indicating that airbags are auxiliary and not the primary safety measure. Airbags consist of sensors, microprocessors, electronic control units, airbag covers and support rings, airbags, and airbag modules. During a collision, the sensors detect the intensity of the impact and send the signal to the controller. The controller receives and processes the signal from the sensors. If it determines that the airbag needs to be deployed, it immediately sends an ignition signal to trigger the gas generator. Upon receiving the ignition signal, the gas generator quickly ignites and produces a large amount of gas to inflate the airbag.
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MacJonathan
08/11/25 12:42am
Airbags are protective devices installed in vehicles, primarily designed to cushion the impact force during collisions. Their core components include sensors, inflators, and the airbag cushion itself. When a vehicle experiences a severe impact, the sensors detect sudden deceleration and immediately activate the inflator, causing the airbag to inflate within milliseconds, forming a soft cushion to absorb the impact on the occupants' heads and chests. This design prevents direct collisions with the steering wheel or windshield, significantly reducing the risk of fractures or internal injuries. I learned from automotive technical books that modern vehicles typically feature multiple airbag locations, such as above the steering wheel or within the dashboard, and their effectiveness is enhanced when used in conjunction with seat belts. As a car enthusiast, I always emphasize that while this device may seem simple, it relies on sophisticated electronic controls to ensure a timely response in critical moments. Choosing a car equipped with comprehensive airbag systems is a wise decision when purchasing a vehicle.
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