Method of controlling airbag inflator

A method of controlling an airbag inflator apparatus, the method comprising:

• determining, by a controller, when a weight of an occupant is in one of predetermined weight ranges sequentially allocated by the controller, while the occupant is accommodated on a seat;
• performing, by the controller, a first logic for operating the airbag inflator apparatus at a first intensity among predetermined intensities when it is determined that the weight of the occupant is in a first weight range among the predetermined weight ranges;
• and
• performing, by the controller, a second logic for operating the airbag inflator apparatus at a second intensity among the predetermined intensities or a third logic for operating the airbag inflator apparatus at a third intensity among the predetermined intensities by the controller, according to conditions including a position of the seat, a state of operation of a recliner, a collision condition, a collision pulse, and wearing of a belt, when it is determined by the controller that the weight of the occupant is in third or fourth weight range among the predetermined weight ranges,
• wherein in the performing a second logic or a third logic, when the seat is disposed forward, the controller is configured to determine a collision condition for high-speed collision or low-speed collision according to a magnitude of collision acceleration, in which case the controller is configured to determine a collision pulse when the collision condition is determined as the high-speed collision, so that the second logic is performed when the collision pulse is a delay pulse, but the third logic is performed when the collision pulse is a normal pulse.