Safety equipment specialist supplier Autoliv has unveiled new airbag technology, based on the Bernoulli Principle which states that, as the speed of a fluid increases, the static pressure decreases.
Traditionally, airbags rely on internal gas pressure to inflate rapidly during a crash. However, Autoliv’s design uses pressure differences to draw in surrounding air, augmenting the inflation process.
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The new technology incorporates an inflator which receives a signal indicating a collision. This then propels high pressure gases at high speeds through multiple inlet tubes.
As the gases flow through the tubes, they create a vacuum effect, drawing in the ambient air and generating aspiration.
The combination of pressure dynamics and aspiration allows for the inflation of a larger airbag with a smaller inflator.
Autoliv claims this offers increased efficiency while significantly reducing development time and costs.
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By GlobalData“The Bernoulli airbag generates less heat, is lighter, and can reduce customer development testing in the US by 30%. Low risk deployment requirements can be met with a single stage inflator,” said chief technical officer Jordi Lombarte in a statement.
The new airbag will be available to OEMs in the third quarter of this year.
