Airbagjärjestelmä

Airbagjärjestelmä, or airbag system, is a vehicle safety feature designed to protect occupants during a collision. It comprises a network of sensors, an inflation module, and a flexible bag that rapidly deploys upon impact. The system's primary function is to cushion the occupant's head and torso, distributing the force of the impact over a larger area and reducing the risk of serious injury.

The sensors, typically accelerometers, detect sudden deceleration characteristic of a crash. When a predefined threshold is met, these sensors trigger the airbag control unit. This unit then signals the inflator, which rapidly generates a large volume of gas, usually nitrogen, to inflate the airbag. The airbag itself is made of a nylon fabric and is designed to inflate within milliseconds, creating a protective cushion between the occupant and the vehicle's interior components like the steering wheel, dashboard, or door.

Modern vehicles often feature multiple airbags, including front, side, curtain, and knee airbags, providing comprehensive protection for various impact scenarios. The effectiveness of airbagjärjestelmä is enhanced when used in conjunction with seatbelts, as they work together to restrain the occupant and optimize the airbag's protective function. Proper maintenance and understanding of the system's limitations are crucial for its reliable performance in ensuring occupant safety.