Restraining medium i.e. airbag, releasing method for use during vehicle crash, involves determining whether medium is released or not, based on acceleration signal of sensor of vehicle and velocity between vehicle and object

摘要

The method involves determining whether a restraining medium i.e. air bag, is released or not, based on a time-dependent acceleration signal of an acceleration sensor of a vehicle and a weighted time-dependent relative velocity between the vehicle and an object. A time-dependent speed change is determined by summation of values of time-dependent acceleration signal. A time-dependent product signal is acquired from the time-dependent speed change by multiplying with the time-dependent weighted relative velocity.