Solid propellant gas generator impulse management scheme for high mass flow turn-down ratio

摘要

A solid divert and attitude control system for use on a kill vehicle or missile that includes a solid propellant gas generator, a control valve for modulating the effective exit area of the solid propellant gas generator, and a controller for calculating the integral of the burn rate of the solid propellant and for controlling operation of the control valve in response to the calculation of the integral of the burn rate of the solid propellant. The solid propellant gas generator has a solid propellant with a non-constant burn area and a grain profile which includes a first boost phase grain, an intermediate sustain phase grain, and a second boost phase. The controller controls operation of the control valve during a coast phase of the mission so that the second boost phase grain does not ignite until the beginning of the terminal phase of the mission.