Method for the detection of an impact
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Abstract
A method for detecting a side collision, in which either temperature or pressure sensors are provided for detecting an adiabatic increase in pressure or temperature. The signals of these sensors are filtered with a low pass filter and then, as a function of a signal of a sensitivity block, checking of the signal for various criteria is initiated. Besides the pure temperature and pressure signals, these criteria include checks of the first and second derivative of the signal as a function of time.
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Citations
16 Claims
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1-9. -9. (canceled)
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10. A method for detecting a collision as a function of at least one signal representing an adiabatic change of state, comprising:
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performing a first comparison of the at least one signal with at least a first threshold;
performing on the at least one signal a low pass filtration before the first comparison;
deriving a variable from the at least one signal;
performing at least one second comparison of the variable with at least one second threshold;
detecting the collision as a function of the first comparison and the at least one second comparison; and
adjusting a sensitivity of the detection in accordance with the first comparison in that the at least one second comparison is performed only after an amount of the first threshold is exceeded. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification