Collision detection apparatus and method for same
First Claim
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1. A collision detector comprising:
- a chamber that defines a hollow space;
a pressure sensor that is connected to the chamber and is capable of detecting a pressure in the hollow space;
a bumper absorber that covers the chamber and absorbs impact caused by a collision of an object with a vehicle; and
a bumper cover that covers the bumper absorber and the chamber;
whereina detection result of the pressure sensor is used to detect the collision of the object with the vehicle, andthe chamber and the bumper absorber are interposed with a predetermined amount of open gap.
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Abstract
A collision detector includes a chamber, a pressure sensor, and a bumper absorber. The chamber defines a hollow space, and the pressure sensor detects a pressure in the hollow space. The bumper absorber absorbs impact caused by a collision of an object with a vehicle, and covers an outer periphery of the chamber. The chamber and the bumper absorber are interposed with a gap in an entire width of the vehicle. In case of collision, the chamber is not bound by the bumper absorber deformed by the impact of the collision, thereby enabling an accurate detection of the collision of the vehicle with the object.
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Citations
26 Claims
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1. A collision detector comprising:
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a chamber that defines a hollow space; a pressure sensor that is connected to the chamber and is capable of detecting a pressure in the hollow space; a bumper absorber that covers the chamber and absorbs impact caused by a collision of an object with a vehicle; and a bumper cover that covers the bumper absorber and the chamber;
whereina detection result of the pressure sensor is used to detect the collision of the object with the vehicle, and the chamber and the bumper absorber are interposed with a predetermined amount of open gap. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 21, 22, 25)
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12. A collision detector comprising:
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a chamber member that defines a sealed hollow space; a pressure sensor that is in communication with the chamber member detecting an increase of a pressure of gas disposed in the hollow space; a bumper absorber that covers the chamber member and absorbs impact caused by a collision of an object with a vehicle; and a bumper cover that covers the bumper absorber and the chamber;
whereina detection result of the pressure sensor is used to detect the collision of the object with the vehicle, and the chamber member and the bumper absorber are interposed with a predetermined amount of open gap greater than zero. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 23, 24, 26)
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Specification