Why do airbags have energy reserve capacitors?

The energy reserve capacitors used in the ACU (Airbag Control Unit) are provided so that once a crash event occurs and Loss of Battery (LOB) occurs in turn, the airbags can still be powered with their help as an emergency supply system.

Why do explosion suppression airbags fire naturally?

In the process of energy absorption by the airbag, the flame is extinguished naturally, because the methane in the pipeline cannot be replenished, which leads to the interruption of the explosion. Based on the two-dimensional model, the stress and deformation theory of the explosion suppression airbag is analyzed.

Can airbags be compressed and deformed?

Consequently, the airbag cannot be compressed and deformed. Previous studies mainly focus on the rigid explosion barrier, rarely analyzing the influence of airbag flexibility on gas explosions. As a kind of flexible explosion suppression material, the airbag has the property of absorbing impact energy.

Does airbag suppression effect on methane/air explosion shock wave and flame?

This work aims to verify the suppression effect of airbag on the methane/air explosion shock wave and flame through a flexible explosion suppression system and analyze the suppression mechanism of airbag shrinkage and deformation energy absorption on shock wave. 2. Experimental System and Method 2.1. Flexible-Airbag Gas-Explosion Suppression System

How does airbag shape affect energy absorption?

As can be seen from the changing rule of the shape of the airbag, with the increase of the impact external pressure P w, the length n of the straight-line segment of the airbag attached to the pipe wall is increased, and the increase of the deformation of the airbag leads to the increase of energy absorption.

How do airbag explosion detection systems work?

The pipeline is open during the experiment. The detection probe for explosion characteristic signals is set 1.5 m away from the ignition end and 15 m away from the assembly of the airbag explosion-suppression device. The gas distribution system adopts negative pressure inflation and the Dalton partial pressure principle configuration.