| 摘要 |
An automotive air bag system comprises an air bag unit (1) including a gas generator (3), a folded air bag (4), a case (2) containing the gas generator and the air bag. The system is provided with a pressure relief hole (6); a lid (5) covering an open upper end of the case, a valve (7) combined with the pressure relief opening, an actuator (8) for operating the valve, a temperature sensor (10) for measuring the temperature of an environment around the air bag unit, a sitting position detector (12) for detecting a sitting position of the passenger, and a controller (9) for controlling the operation of the actuator according to temperature signal from the temperature sensor and sitting position signal from the sitting position detector. The opening degree of the pressure relief opening is adjusted to a desired degree according to the temperature of the environment around the air bag unit and the sitting position of the passenger relative to the air bag unit whereby the air bag is inflated at a normal internal pressure and may not be inflated with excessively great force regardless of the temperature of the environment around the air bag unit. |
