Vehicle airbag deactivation switch circuit
First Claim
1. An airbag restraint system for use in an automotive vehicle having an instrument panel and steering wheel, the airbag restraint system comprising:
- a first airbag adapted to be mounted in the instrument panel;
a second airbag adapted to be mounted in the steering wheel;
an airbag activation circuit for selectively actuating the first and the second airbags, with the activation circuit including a first firing mechanism operatively engaging the first airbag, a second firing mechanism operatively engaging the second airbag, a diagnostic module, and a firing circuit operatively engaging the first and the second firing mechanisms; and
a deactivation circuit, connected between the diagnostic module and the first and the second firing mechanisms, including a four position switch, with the first firing mechanism connected to two of the switch positions and the second firing mechanism connected to two of the switch positions, and with the deactivation circuit further including a first fuse connected to the switch at two different switch positions than the first firing mechanism in parallel with the first firing mechanism, and a second fuse connected to the switch at two different switch positions than the second firing mechanism in parallel with the second firing mechanism, such that when the switch is at one of the two positions to which the first fuse is connected, the first firing mechanism is disconnected from the switch and when the switch is at one of the two positions to which the second fuse is connected, the second firing mechanism is disconnected from the switch.
2 Assignments
0 Petitions
Accused Products
Abstract
An airbag deactivation system for the airbags mounted in a motor vehicle. The system provides a switch and circuitry to allow for selective deactivation of driver and/or passenger airbags in a motor vehicle via a conventional ignition key inserted into a key cylinder. The switch includes interchangeable key cylinders to allow for limited selective deactivation and a key stop to limit the amount of insertion of the ignition key into the key cylinder. LED'"'"'s emit light from the deactivation module when indicating a deactivation condition, which is viewable by both a driver and a front seat passenger. Alternatively, LED'"'"'s are mounted in a remote indicator assembly, separate from the deactivation module, to povide improved visual indication to the driver and font seat passenger of the state of airbag deactivation.
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Citations
20 Claims
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1. An airbag restraint system for use in an automotive vehicle having an instrument panel and steering wheel, the airbag restraint system comprising:
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a first airbag adapted to be mounted in the instrument panel; a second airbag adapted to be mounted in the steering wheel; an airbag activation circuit for selectively actuating the first and the second airbags, with the activation circuit including a first firing mechanism operatively engaging the first airbag, a second firing mechanism operatively engaging the second airbag, a diagnostic module, and a firing circuit operatively engaging the first and the second firing mechanisms; and a deactivation circuit, connected between the diagnostic module and the first and the second firing mechanisms, including a four position switch, with the first firing mechanism connected to two of the switch positions and the second firing mechanism connected to two of the switch positions, and with the deactivation circuit further including a first fuse connected to the switch at two different switch positions than the first firing mechanism in parallel with the first firing mechanism, and a second fuse connected to the switch at two different switch positions than the second firing mechanism in parallel with the second firing mechanism, such that when the switch is at one of the two positions to which the first fuse is connected, the first firing mechanism is disconnected from the switch and when the switch is at one of the two positions to which the second fuse is connected, the second firing mechanism is disconnected from the switch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An airbag restraint system for use in an automotive vehicle having an instrument panel and steering wheel, the airbag restraint system comprising:
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a first airbag adapted to be mounted in the instrument panel; a second airbag adapted to be mounted in the steering wheel; an airbag activation circuit for selectively actuating the first and the second airbags, with the activation circuit including a first firing mechanism operatively engaging the first airbag and having a first resistance, a second firing mechanism operatively engaging the second airbag and having a second resistance, a diagnostic module, and a firing circuit operatively engaging the first and the second firing mechanisms; and a deactivation circuit, connected between the diagnostic module and the first and the second firing mechanisms, including a four position switch, with the first firing mechanism connected to two of the switch positions and the second firing mechanism connected to two of the switch positions, and with the deactivation circuit further including a first fuse connected to the switch at two different switch positions than the first firing mechanism in parallel with the first firing mechanism and having a third resistance substantially equal to the first resistance, and a second fuse connected to the switch at two different switch positions than the second firing mechanism in parallel with the second firing mechanism and having a fourth resistance substantially equal to the second resistance, such that when the switch is at one of the two positions to which the first fuse is connected, the first firing mechanism is disconnected from the switch and when the switch is at one of the two positions to which the second fuse is connected, the second firing mechanism is disconnected from the switch. - View Dependent Claims (13, 14, 15, 16)
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17. An airbag restraint system for use in an automotive vehicle having an instrument panel and steering wheel, the airbag restraint system comprising:
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a first airbag adapted to be mounted in the instrument panel; a second airbag adapted to be mounted in the steering wheel; an airbag activation circuit for selectively actuating the first and the second airbags, with the activation circuit including a first firing mechanism operatively engaging the first airbag, a second firing mechanism operatively engaging the second airbag, a diagnostic module, and a firing circuit operatively engaging the first and the second firing mechanisms; and a deactivation circuit, connected between the diagnostic module and the first and the second firing mechanisms, including a four position switch, with the first firing mechanism connected to two of the switch positions and the second firing mechanism connected to two of the switch positions, and with the deactivation circuit further including a first fuse connected to the switch at two different switch positions than the first firing mechanism in parallel with the first firing mechanism, and a second fuse connected to the switch at two different switch positions than the second firing mechanism in parallel with the second firing mechanism, such that when the switch is at one of the two positions to which the first fuse is connected, the first firing mechanism is disconnected from the switch and the diagnostic module operatively engages the first fuse and when the switch is at one of the two positions to which the second fuse is connected, the second firing mechanism is disconnected from the switch. - View Dependent Claims (18, 19, 20)
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Specification