Abstract: The variable output inflator includes an injection piston assembly containing a sealed container of liquid propellant. The movement of the injection piston of the assembly is controlled by an electromagnetic valve that controls the flow of a fluid from a reservoir and against which an annular skirt of the injection piston moves during actuation.

Abstract: The variable output inflator includes an injection piston assembly containing a sealed container of liquid propellant. The movement of the injection piston of the assembly is controlled by an electromagnetic valve that controls the flow of a fluid from a reservoir and against which an annular skirt of the injection piston moves during actuation.

Abstract: The airbag assembly is provided with a housing between an inflator and an airbag in order to radially diffuse hot gasses pouring into the airbag to reduce the temperature of the hot gas. An ECU receives signals from sensors in the vehicle to provide information with respect to the severity of a crash and the weight of an occupant. The ECU processes the signals from the sensors and chooses a current profile from the matrix of speeds and weights that represents a specific inflation mass flow rate. The chosen signal is delivered to an ICU which, in turn, controls the inflator to deliver a specific gas mass flow rate to the airbag.