SIDE COLLISION DETECTION SYSTEM AND OCCUPANT RESTRAINT SYSTEM
First Claim
1. A side collision detection system that detects a side collision of a vehicle, the side collision detection system comprising:
- a first acceleration sensor which is attached to a beam of a door at a side of the vehicle and which detects an acceleration in a direction orthogonal to a travelling direction of the vehicle;
a second acceleration sensor which is provided at a side of the vehicle and which is different from the first acceleration sensor; and
a detection device which uses, as a safing signal for determining whether there is a collision, a first signal output by either one of the first and second acceleration sensors, uses, as a detection signal for determining a severity of the collision, a second signal output by another acceleration sensor, and detects a side collision happened to the vehicle.
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Accused Products
Abstract
In order to precisely detect a side collision of a vehicle with a simple configuration, an air bag device has an acceleration sensor which is for detecting a side collision and which is attached to the beam of the vehicle. Hence, in comparison with a case in which a displacement sensor for detecting a side collision is used, the air bag device can have a simplified configuration. Moreover, unlike the displacement sensor, the acceleration sensor needs no adjustment of a positional relationship with a measurement target. Accordingly, the initial adjustment of the air bag device can be carried out within a short time, resulting in a reduction of a production cost of the air bag device.
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Citations
8 Claims
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1. A side collision detection system that detects a side collision of a vehicle, the side collision detection system comprising:
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a first acceleration sensor which is attached to a beam of a door at a side of the vehicle and which detects an acceleration in a direction orthogonal to a travelling direction of the vehicle; a second acceleration sensor which is provided at a side of the vehicle and which is different from the first acceleration sensor; and a detection device which uses, as a safing signal for determining whether there is a collision, a first signal output by either one of the first and second acceleration sensors, uses, as a detection signal for determining a severity of the collision, a second signal output by another acceleration sensor, and detects a side collision happened to the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification