Three speed algorithm for airbag sensor activation
First Claim
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1. A method for determining a condition warranting deployment of an inflatable restraint disposed within a passenger compartment of a vehicle, the method comprising:
- monitoring acceleration of the passenger compartment;
determining a first term based on a first average acceleration of the passenger compartment;
determining a second term based on a second average acceleration of the passenger compartment;
determining a third term based on a third average acceleration of the passenger compartment;
comparing the first term to a first threshold;
comparing the second term to a second threshold;
comparing the third term to a third threshold;
generating a first signal indicative of the condition if at least one of the first, second and third thresholds is exceeded.
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Abstract
A system and method for controlling deployment of an inflatable passenger restraint. Acceleration of a passenger compartment is monitored, and first, second and third terms are determined based on a different average accelerations of the passenger compartment. The terms are compared to respective thresholds, and a first signal is generated if at least one of the first, second or third thresholds is exceeded. If the first signal is generated and the velocity of the passenger compartment exceeds a velocity threshold with offset, the inflatable restraint is deployed.
53 Citations
19 Claims
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1. A method for determining a condition warranting deployment of an inflatable restraint disposed within a passenger compartment of a vehicle, the method comprising:
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monitoring acceleration of the passenger compartment;
determining a first term based on a first average acceleration of the passenger compartment;
determining a second term based on a second average acceleration of the passenger compartment;
determining a third term based on a third average acceleration of the passenger compartment;
comparing the first term to a first threshold;
comparing the second term to a second threshold;
comparing the third term to a third threshold;
generating a first signal indicative of the condition if at least one of the first, second and third thresholds is exceeded. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system for determining a condition warranting deployment of an inflatable restraint disposed within a passenger compartment of a vehicle, the system comprising:
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a sensor for indicating acceleration of the passenger compartment; and
control logic in communication with the sensor to determine first, second, and third terms based on respective first, second, and third average accelerations of the passenger compartment, compare the first, second and third terms to respective first, second and third thresholds, and generate a first signal indicative of the condition if at least one of the first, second and third thresholds is exceeded. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification