Occupant restraint system and control method with variable occupant position boundary

摘要

A restraint system (10) includes an actuatable occupant restraint module (18), which is controlled in a method for restraining a vehicle occupant (12). A restraint control determination function (68) controls actuation of the restraint module (18) using information from a vehicle collision sensor (30). An occupant sensor (34) senses the occupant and provides a signal indicative thereof. A position determination function (46) determines position of the occupant (12) using the signal, and an occupant velocity determination function (70) determines velocity of the occupant relative to a vehicle reference location, as a time derivative of the occupant position. An OOP determination function (52) determines if the occupant (12) is in an occupant out-of-position zone (OOP) (62). If the occupant (12) is within the OOP zone (62), actuation of the restraint module (18) is prevented. A boundary adjustment function (72) repositions a boundary (64) of the OOP zone (62) as a function of the determined occupant velocity. Another embodiment includes an adjustable zone (258), in which adjustable aspect(s) (219) are adjusted.