Impact Sensor: Description and Operation

INFLATABLE RESTRAINT FRONT END SENSOR

The front end sensor is equipped on vehicles to supplement the SIR system performance. The front end sensor is electronic and is not part of the deployment loops, but instead provides input to the SDM. The front end sensor can assist in determining the severity of some frontal collisions. The SDM uses the input from the front end sensor to assist in determining the severity of a frontal collision further supporting air bag deployment. If the SDM determines a deployment is warranted, the SDM will cause current to flow through the deployment loops deploying the frontal air bags.