Method and apparatus for controlling an occupant restraint system in response to selected criteria zone
First Claim
1. An apparatus for detecting a vehicle crash condition and providing a signal indicative of such a crash condition, comprising:
- velocity means for providing a crash velocity signal having a value indicative of crash velocity;
displacement means for providing a crash displacement signal having a value indicative of crash displacement; and
control means connected to said velocity means and said displacement means and having a plurality of deployment criteria zones, each of said deployment criteria zones being defined by an associated range of crash velocity values and an associated range of crash displacement values and each of said plurality of deployment criteria zones having at least one associated crash metric, said control means including,selection means for selecting one of said plurality of deployment criteria zones in response to both said crash velocity signal and said crash displacement signal, anddeployment determining means for determining whether a crash metric of said selected deployment criteria zone indicates that a deployment crash condition is occurring and providing a deployment signal in response thereto.
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Accused Products
Abstract
An apparatus is provided for detecting a vehicle crash condition and providing a signal indicative of such a crash condition. The apparatus includes a controller that determines crash velocity and crash displacement signal in response to sensed crash acceleration. The controller has a plurality of deployment criteria zones each defined by an associated range of crash velocity values and crash displacement values. Each of the plurality of deployment criteria zones has at least one associated crash metric. The controller selects one of the plurality of deployment criteria zones in response to both the crash velocity value and the crash displacement value. The controller further determines whether a crash metric of the selected deployment criteria zone indicates that a deployment crash condition is occurring. The controller provides a deployment signal in response to the crash metric indicating a deployment crash condition is occurring.
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Citations
13 Claims
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1. An apparatus for detecting a vehicle crash condition and providing a signal indicative of such a crash condition, comprising:
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velocity means for providing a crash velocity signal having a value indicative of crash velocity; displacement means for providing a crash displacement signal having a value indicative of crash displacement; and control means connected to said velocity means and said displacement means and having a plurality of deployment criteria zones, each of said deployment criteria zones being defined by an associated range of crash velocity values and an associated range of crash displacement values and each of said plurality of deployment criteria zones having at least one associated crash metric, said control means including, selection means for selecting one of said plurality of deployment criteria zones in response to both said crash velocity signal and said crash displacement signal, and deployment determining means for determining whether a crash metric of said selected deployment criteria zone indicates that a deployment crash condition is occurring and providing a deployment signal in response thereto. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for detecting a vehicle crash condition and providing a signal indicative thereof, said method comprising the steps of:
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determining crash velocity and providing a crash velocity signal having a value indicative of crash velocity; determining crash displacement and providing a crash displacement signal having a value indicative of crash displacement; and establishing a plurality of deployment criteria zones wherein each established deployment criteria zone is defined by an associated range of crash velocity values and range of crash displacement values; establishing at least one associated crash metric for each of said deployment criteria zones; selecting one of said plurality of deployment criteria zones in response to both said crash velocity signal and said crash displacement signal; determining whether a crash metric of said selected deployment criteria zone indicates that a deployment crash condition is occurring; and providing a deployment signal when said selected deployment criteria zone indicates that a deployment crash condition is occurring.
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Specification