DRIVER-SIDE AIR BAG MODULE

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Purpose

• When the driver-side air bag module receives an impact from a frontal or frontal offset collision, the operation (deployment) of the air bag mediates the impact to the head and face of the driver.

Function

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

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Construction

• The driver-side air bag module is installed to the center area of the steering wheel.

Operation

Inflator operation

• The driver-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 igniter built into the inflator generates heat and ignites the ignition agent.

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2. The ignition of the ignition agent causes the combustion of a gas generating agent which forms nitrogen gas.

3. The nitrogen gas is cooled at the filter and the filtrate is injected into the air bag.

Fail-safe

• Function not equipped.