Vehicle impact sensor using both accelerometer and pressure sensing for side impact detection

摘要

A restraint control system ( 40 ) for an automotive vehicle ( 10 ) is illustrated with a first sensor such as a door cavity pressure sensor ( 28 ) and a second sensor such as an accelerometer ( 30 ). A restraint device ( 54 ) is coupled to a controller ( 52 ) that controls the operation of the restraint device in response to the first sensor ( 28 ) and the second sensor ( 30 ). When either the signal from the first sensor or the signal from the second sensor is above a first or second threshold, respectively, the two signals are compared. In response to the comparison, the restraint device ( 54 ) is deployed.