SIDE AIR BAG MODULE

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Purpose

• When a side air bag module receives an impact from a lateral collision, the operation (deployment) of the air bag mediates the impact to the chest, stomach, and waist of the driver and front passenger.

Function

• When a side air bag module receives an impact from a lateral collision, the air bag is operated (deployed) by the operation signal sent from the SAS control module.

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Construction

• The side air bag modules are installed on the door side of the front seat backs.

• The side air bag module consists of the inflator and air bag.

• The inflator consists of an initiator, ignition chamber, gas-generating agent, and filter.

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Operation

• The side air bag module operates (deploys) the air bag by activating the internal inflator.

• The inflator operates (deploys) in the following order:

1. When an operation (deployment) signal is received from the SAS control module, the initiator built into the inflator ignites.

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2. The ignition of the initiator causes the ignition of the gas-generating agent.

3. The end of the ignition chamber is broken by the combustion gas pressure, and the combustion gas is supplied into the filter.

4. The combustion gas, which is cooled by the filter, is sprayed to the air bag through the diffuser (diffusion devise).

5. When the side air bag module operates (deploys), the air bag operates (deploys) while breaking open the seat back trim by the force of the gas sprayed out of the inflator.

Fail-safe

• Function not equipped.