Air bag system

An air bag system comprising an electronic control unit connected to a power source and an impact detecting sensor, and plural module cases which are connected to the electronic control unit and accommodate plural gas generators and plural air bags, a bus line which comprises plural loop wires passing through the electronic control unit to supply and transmit currents and required information, and individual gas generators which are connected operationally by plural conductors branched at predetermined portions from the bus line, wherein

• each of the plural gas generators is provided with one or at least two electric igniters including a heat generating portion and a priming coming in contact with the heat generating portion, the one or at least two igniters and the bus line are connected by plural conductors,
• a capacitor, an integrated circuit in which information for developing a required function is stored, and the heat generating portion is provided on one substrate in each igniter of each gas generator, and the substrate is provided vertically, and
• at least the capacitor and the integrated circuit, and the priming on the substrate are not in contact with one another, and a current for igniting a priming is supplied to the one or at least two igniters through the capacitor in the igniter.

An air bag system comprising an electronic control unit connected to a power source and an impact detecting sensor, and plural module cases which are connected to the electronic control unit and accommodate plural gas generators and plural air bags, a bus line which comprises plural loop wires passing through the electronic control unit to supply and transmit currents and required information, and individual gas generators which are connected operationally by plural conductors branched at predetermined portions from the bus line, wherein

• each of the plural gas generators is provided with one or at least two electric igniters including a heat generating portion and a priming coming in contact with the heat generating portion, the one or at least two igniters and the bus line are connected by plural conductors, and
• each igniter of each gas generator is provided with an integrated circuit in which information for exhibiting a function for detecting abnormality of the heat generating portion and the heat generating portion.

An air bag system comprising an electronic control unit connected to a power source and an impact detecting sensor, and plural module cases which are connected to the electronic control unit and accommodate plural gas generators and plural air bags, a bus line which comprises plural loop wires passing through the electronic control unit to supply and transmit currents and required information, and individual gas generators which are connected operationally by plural conductors branched at predetermined portions from the bus line, wherein

• each of the plural gas generators is provided with one or at least two electric igniters including a heat generating portion and a priming coming in contact with the heat generating portion, the one or at least two igniters and the bus line are connected by plural conductors, and
• each igniter of each gas generator is provided with an integrated circuit for recording information for exhibiting a function for identifying each of the plural gas generators. In this case, the capacitor and/or the heat generating portion can be provided together with the integrated circuit.

An air bag system comprising an electronic control unit connected to a power source and an impact detecting sensor, and plural module cases which are connected to the electronic control unit and accommodate plural gas generators and plural air bags, a bus line which comprises plural loop wires passing through the electronic control unit to supply and transmit currents and required information, and individual gas generators which are connected operationally by plural conductors branched at predetermined portions from the bus line, wherein

• each of the plural gas generators is provided with one or at least two electric igniters including a heat generating portion and a priming coming in contact with the heat generating portion, the one or at least two igniters and the bus line are connected by plural conductors, and
• each igniter of each gas generator is provided with an integrated circuit in which information to exhibit a function for detecting the capacitor and a malfunction of the capacitor is recorded.

An air bag system comprising an electronic control unit connected to a power source and an impact detecting sensor, and plural module cases which are connected to the electronic control unit and accommodate plural gas generators and plural air bags, a bus line which comprises plural loop wires passing through the electronic control unit to supply and transmit currents and required information, and individual gas generators which are connected operationally by plural conductors branched at predetermined portions from the bus line, wherein

• each of the plural gas generators is provided with one or at least two electric igniters including a heat generating portion and a priming coming in contact with the heat generating portion, the one or at least two igniters and the bus line are connected by plural conductors, and further, each igniter of each gas generator is provided with an integrated circuit inputted with information to exhibit required functions, and
• the inside of the igniter is provided with a circuit for preventing the igniter from being erroneously activated due to a noise generated outside the igniters.