Collision Description
When the vehicle is involved in a frontal collision (the hatched area), and the shock is larger than a predetermined level, the SRS is activated automatically. Safing sensors are designed to go on at a smaller deceleration rate than the front and center airbag sensors.
As illustrated, ignition is caused when current flows to the squib, which happens when a safing sensor and a front airbag sensor and/or the center airbag sensor go on simultaneously. When a deceleration force acts on the sensor, it causes the squib to ignite. Gas is then generated, increasing the pressure inside the bag rapidly. The inflated bag breaks open the steering wheel pad and front passenger airbag assembly. Bag inflation then ends, and the gas is discharged through discharge holes provided behind the bag. The bag becomes deflated as a result.