Method of optimizing threshold for an airbag suppression system in a vehicle

摘要

A method is presented of optimizing an airbag suppression threshold for an airbag suppression system in a vehicle. The method includes defining a first value as the airbag suppression threshold such that deployment of an airbag is suppressed above the first value. Next, one or more factors indicative of a presence of a child restraint seat in the vehicle seat are determined. The airbag suppression threshold is set to a predefined second value when each of the factors are met. The factors include determining whether a locking feature in a set belt webbing retractor is in a first state configured to prevent withdrawal of the seat belt webbing. Other factors may include determining whether a speed of the vehicle is within a predetermined speed range and whether a load applied to the vehicle seat is within a predetermined seatload range.

主权项

1. A method of optimizing an airbag suppression threshold for an airbag suppression system in a vehicle having a vehicle seat, a seat belt webbing, a refractor and an airbag, the method comprising:
defining a first value as the airbag suppression threshold such that deployment of the airbag is suppressed above the first value; determining one or more factors indicative of a presence of a child restraint seat in the vehicle seat; selectively setting the airbag suppression threshold to a predefined second value when each of the factors are met; and wherein the one or more factors include determining whether a locking feature in the retractor is in a first state configured to prevent withdrawal of the seat belt webbing, the locking feature being configured to enter the first state when a predefined amount of seat belt webbing is withdrawn.