Vehicle airbag device with an auxiliary chamber
First Claim
1. A vehicle airbag device equipped with an auxiliary chamber comprising:
- an impact sensor that detects an impact applied to the vehicle in the event of an accident;
a seatbelt sensor for sensing whether a front passenger'"'"'s seatbelt is fastened;
a seat position sensor for sensing the position of a front passenger seat along a seat rail;
an inflator unit having a first inflator and a second inflator which supply a gas;
an airbag having a base chamber with at least one inner vent hole formed therein facing a passenger so that the airbag is unfolded and inflated by the gas supplied by the first inflator, and an auxiliary chamber which is installed on the side of the base chamber facing the passenger, and which receives the base chamber at an inner side of the chamber and which is configured to receive the gas from the second inflator and to be connected with the inner vent hole; and
a controller that operates the airbag according to a signal detected from the impact sensor, and that controls the operation of the first inflator and the second inflator according to the combination of whether the seatbelt sensor senses that the front passenger'"'"'s seatbelt is fastened and the seat position detected by the seat position sensor.
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Accused Products
Abstract
The present invention relates to a vehicle airbag device equipped with an auxiliary chamber that protects a passenger in case of car crash by the auxiliary chamber'"'"'s inflating depending on the passenger seat location and whether the front seat passenger'"'"'s seatbelt is fastened, regardless of a front seat passenger'"'"'s height or age, with the airbag being formed to protect the passenger'"'"'s head, chest and knees, and in which the left and right sides of the auxiliary chamber are first inflated and then the center is inflated by providing gas flow directed to both sides of the auxiliary chamber so as to minimize injuries to the passenger by minimizing unfolding pressure.
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Citations
16 Claims
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1. A vehicle airbag device equipped with an auxiliary chamber comprising:
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an impact sensor that detects an impact applied to the vehicle in the event of an accident; a seatbelt sensor for sensing whether a front passenger'"'"'s seatbelt is fastened; a seat position sensor for sensing the position of a front passenger seat along a seat rail; an inflator unit having a first inflator and a second inflator which supply a gas; an airbag having a base chamber with at least one inner vent hole formed therein facing a passenger so that the airbag is unfolded and inflated by the gas supplied by the first inflator, and an auxiliary chamber which is installed on the side of the base chamber facing the passenger, and which receives the base chamber at an inner side of the chamber and which is configured to receive the gas from the second inflator and to be connected with the inner vent hole; and a controller that operates the airbag according to a signal detected from the impact sensor, and that controls the operation of the first inflator and the second inflator according to the combination of whether the seatbelt sensor senses that the front passenger'"'"'s seatbelt is fastened and the seat position detected by the seat position sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification