Device, vehicle and method for detecting a collision of an object on a collision location detection region of a vehicle
First Claim
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1. A device for detecting a collision with an object on a collision location detection region of a vehicle, comprising:
- first and second substantially closed hollow bodies, said hollow bodies;
being connected to a part of a vehicle bodywork;
having a longitudinal axis disposed parallel to the collision location detection direction and overlapping one another in the collision location detection region; and
being disposed in a vicinity to an exterior surface of the vehicle such that at least one of said hollow bodies is compressed during the collision;
a first sensor and a second sensor disposed to detect a compression of a respectively associated said first and second hollow bodies respectively, and configured to output first and second signals, respectively, indicative of the respective compression; and
an evaluator connected to receive the signal from each sensor;
said first hollow body having at least one first constructional parameter associated therewith and said second hollow body having at least one second constructional parameter associated therewith, with at least one of said constructional parameters varying along the collision location detection direction so that a quotient of the first and second signals increases or decreases in an event of a collision of a given object with identical velocity at different collision locations along the collision location detection direction.
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Abstract
The device includes a first and a second structural parameter for a first or a second hollow body. At least one of the parameters changes along the collision location detection region in such a way that the quotient and/or the difference between the two signals of the sensors essentially continuously increases or decreases when the same object collides at the same speed in different collision locations. Suitable parameters are, for example, the cross-sectional surface of a hollow body or the rigidity thereof.
24 Citations
22 Claims
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1. A device for detecting a collision with an object on a collision location detection region of a vehicle, comprising:
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first and second substantially closed hollow bodies, said hollow bodies; being connected to a part of a vehicle bodywork; having a longitudinal axis disposed parallel to the collision location detection direction and overlapping one another in the collision location detection region; and being disposed in a vicinity to an exterior surface of the vehicle such that at least one of said hollow bodies is compressed during the collision; a first sensor and a second sensor disposed to detect a compression of a respectively associated said first and second hollow bodies respectively, and configured to output first and second signals, respectively, indicative of the respective compression; and an evaluator connected to receive the signal from each sensor; said first hollow body having at least one first constructional parameter associated therewith and said second hollow body having at least one second constructional parameter associated therewith, with at least one of said constructional parameters varying along the collision location detection direction so that a quotient of the first and second signals increases or decreases in an event of a collision of a given object with identical velocity at different collision locations along the collision location detection direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 17, 18, 19, 20, 22)
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8. A vehicle having a vehicle body and a device for detecting a collision of an object on a collision location detection region on the vehicle body, the combination comprising:
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first and second substantially closed hollow bodies, said hollow bodies; being connected to a part of a vehicle bodywork; having a longitudinal axis disposed parallel to the collision location detection direction and overlapping one another in the collision location detection region; and being disposed in a vicinity to an exterior surface of the vehicle such that at least one of said hollow bodies is compressed during the collision; a first sensor disposed to detect a compression of said first hollow body and configured to output a first signals indicative of the compression of said first hollow body, and a second sensor disposed to detect a compression of said second hollow body and configured to output a second signal indicative of the compression of said second hollow body; and an evaluator connected to receive the signal from each sensor; said first hollow body having at least one first constructional parameter associated therewith and said second hollow body having at least one second constructional parameter associated therewith, with at least one of said constructional parameters varying along the collision location detection direction so that a quotient of the first and second signals increases or decreases in an event of a collision of a given object with identical velocity at different collision locations along the collision location detection direction. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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21. A method for detecting a collision of an object on a collision location detection region of a vehicle, the method which comprises:
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in an event of a collision, using a first sensor and a second sensor to detect a compression of a respectively associated first hollow body and second hollow body overlapping one another; transmitting first and second signals indicative of the respective compression to a central evaluator from the first sensor and from the second sensor, respectively; forming a ratio of the first and second signals with a central evaluator; and assigning a collision location to the ratio of the first and second signals by the evaluator from a functional relationship stored in the evaluator, and outputting a signal indicative of the collision location for further processing.
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Specification