Apparatus for determining collision for air bag
First Claim
1. An apparatus for determining a collision for an air bag according to a signal from an acceleration sensor, comprising:
- a signal integrator for integrating an area, which is below a first amplitude threshold, of the signal from the acceleration sensor; and
a determination unit for determining a collision if the output of the signal integrator is above a given value.
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Accused Products
Abstract
An apparatus detects a collision according to a signal from an acceleration sensor 1, to deploy an air bag of a car. The apparatus prevents an erroneous deployment of the air bag when the car is driving along a rough road. The apparatus employs two deceleration thresholds for a signal from the acceleration sensor 1. The apparatus has a signal integrator 3 that integrates an area of the signal defined by the thresholds as well as an acceleration area of the same signal. The apparatus has a determination unit 4 that determines a collision if an integral provided by the signal integrator 3 is above a value corresponding to an OFF collision that requires no deployment of the air bag.
52 Citations
12 Claims
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1. An apparatus for determining a collision for an air bag according to a signal from an acceleration sensor, comprising:
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a signal integrator for integrating an area, which is below a first amplitude threshold, of the signal from the acceleration sensor; and a determination unit for determining a collision if the output of the signal integrator is above a given value. - View Dependent Claims (2, 3)
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4. An apparatus for determining a collision for an air bag according to a signal from an acceleration sensor, comprising:
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a signal integrator for integrating an area, which is above a second amplitude threshold, of the signal from the acceleration sensor; and a determination unit for determining a collision if the output of the signal integrator is above a given value. - View Dependent Claims (5, 6, 7, 8)
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9. An apparatus for determining a collision for an air bag according to a signal from an acceleration sensor, comprising:
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a signal integrator for integrating an area, which is below a first amplitude threshold and above a second amplitude threshold, of the signal from the acceleration sensor; and a determination unit for determining a collision if the output of the signal integrator is above a given value.
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10. An apparatus for determining a collision for an air bag according to a signal from an acceleration sensor, comprising:
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a signal integrator for integrating an area, area of the signal from the acceleration sensor which is below a first amplitude threshold and above a second amplitude threshold and for integrating an area of the signal from the acceleration sensor which corresponds to acceleration; and a determination unit for determining a collision if the output of the signal integrator is above a given value. - View Dependent Claims (11, 12)
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Specification