System and method for sensing vehicle rollover
First Claim
Patent Images
1. A rollover sensing system comprising:
- a roll rate sensor operative to sense a rate of rotation of a vehicle and to provide a roll rate signal having an electrical characteristic indicative thereof; and
a controller connected to said roll rate sensor, said controller being operative to determine a roll angle of the vehicle based on the roll rate signal, said controller including a threshold having a value functionally related to roll angle, said controller determining the occurrence of a vehicle rollover condition in response to the sensed roll rate crossing said threshold.
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Abstract
A rollover sensing system (10) includes a roll rate sensor (14) operative to sense a roll rate of rotation of a vehicle (12) and to provide a roll rate signal having an electrical characteristic indicative thereof. A controller (26) is connected to the roll rate sensor (14) and is operative to determine a roll angle of the vehicle (12) based on the roll rate signal. The controller (26) includes a threshold having a value functionally related to roll angle. The controller (26) determines the occurrence of a vehicle rollover condition in response to the sensed roll rate crossing the threshold.
24 Citations
13 Claims
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1. A rollover sensing system comprising:
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a roll rate sensor operative to sense a rate of rotation of a vehicle and to provide a roll rate signal having an electrical characteristic indicative thereof; and
a controller connected to said roll rate sensor, said controller being operative to determine a roll angle of the vehicle based on the roll rate signal, said controller including a threshold having a value functionally related to roll angle, said controller determining the occurrence of a vehicle rollover condition in response to the sensed roll rate crossing said threshold. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for sensing vehicle rollover, said method comprising the steps of:
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sensing a roll rate of rotation of the vehicle;
determining a roll angle based on sensed roll rate;
providing a roll rate threshold having a value functionally related to roll angle;
determining whether the sensed roll rate crosses the roll rate threshold; and
providing a control signal in response to determining that the roll rate crosses the threshold. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A rollover sensing system comprising:
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means for sensing a rate of rotation of a vehicle and providing a roll rate signal having an electrical characteristic indicative thereof; and
control means for determining a roll angle of the vehicle based on the roll rate signal, said control means having a threshold that has a value functionally related to roll angle, said control means determining the occurrence of a vehicle rollover condition in response to the sensed roll rate crossing said threshold.
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Specification