Controlling deployment of air-bag body of head-protection air-bag device

摘要: A method and apparatus for controlling deployment of an air-bag body a head-protection device, in which the internal-pressure retention time can be increased case rollover vehicle without increasing bulk non-operational state. When is detected by sensor, only squib actuated output control circuit. As result, firing pin pierces through burst disk, so that compressed gas not heated pressurized gas-heating agent flows small-diameter portion diffuser into body. Accordingly, rollover, internal pressure has lower peak value reaches longer compared with side collision case.