System and method for adjusting accumulated crash-discrimination measures based on crash progress
First Claim
1. In a system for controlling actuation of a vehicle passenger safety device to protect a vehicle passenger against injury upon the occurrence of an event possibly requiring actuation of said safety device, said system including:
- means for receiving information from the group consisting of vehicle acceleration information and vehicle passenger position information;
means for generating a first measure based on said received information as a function of time;
accumulating means for accumulating said first measure over time to obtain an accumulated first measure; and
actuating means responsive to said accumulated first measure for actuating said safety device when said accumulated first measure exceeds a first threshold value therefor, the improvement comprising;
means for generating a second measure based on said received information, said second measure being representative of the progress of said event;
means for weighting said first measure using said second measure prior to accumulating said first measure in said accumulating means, whereby said first measure is weighted as a function of the progress of said event.
1 Assignment
0 Petitions
Accused Products
Abstract
A system and method for controlling actuation of a vehicle passenger safety device in response to an event possibly requiring actuation of the safety device, wherein a first measure calculated from received vehicle acceleration information is weighted by a second measure, such as a modified vehicle velocity measure, which is itself evaluative of the relative progress of the event. The weighted first measure is thereafter accumulated and compared to a threshold value, with the safety device being actuated when the resulting accumulated weighted first measure exceeds the threshold value.
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Citations
18 Claims
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1. In a system for controlling actuation of a vehicle passenger safety device to protect a vehicle passenger against injury upon the occurrence of an event possibly requiring actuation of said safety device, said system including:
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means for receiving information from the group consisting of vehicle acceleration information and vehicle passenger position information; means for generating a first measure based on said received information as a function of time; accumulating means for accumulating said first measure over time to obtain an accumulated first measure; and actuating means responsive to said accumulated first measure for actuating said safety device when said accumulated first measure exceeds a first threshold value therefor, the improvement comprising; means for generating a second measure based on said received information, said second measure being representative of the progress of said event; means for weighting said first measure using said second measure prior to accumulating said first measure in said accumulating means, whereby said first measure is weighted as a function of the progress of said event. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. In a method for controlling actuation of a vehicle passenger safety device to protect a vehicle passenger against injury upon the occurrence of an event possibly requiring actuation of said safety device, said method including the steps of:
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receiving information from the group consisting of vehicle acceleration information and vehicle passenger position information; calculating a first time-varying measure based on said received information as a function of time; accumulating said first measure over time to obtain an accumulated first measure; comparing said accumulated first measure to a first threshold value; and actuating said safety device when said accumulated first measure exceeds said first threshold value, the improvement comprising; generating a second measure based on said received information, said second measure approximating the relative progress of said event; and weighting said first measure using said second measure prior to accumulation thereof by subtracting said second measure from said first measure. - View Dependent Claims (9, 10, 11, 12)
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13. A method for controlling actuation of a vehicle passenger safety device for protecting a vehicle passenger against injury upon the occurrence of an event possibly requiring actuation of said safety device, said method comprising the steps of:
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receiving information representative of instantaneous vehicle acceleration or vehicle passenger position relative to a fixed point within the vehicle; generating a first measure which is evaluative of said received information in relation to time; generating a second measure correlated with the progress of said event based on said received information; weighting said first measure using said second measure to obtain a weighted first measure; accumulating said weighted first measure to obtain an accumulated weighted first measure; comparing said accumulated weighted first measure to a first threshold value; and actuating said vehicle safety device if said accumulated weighted first measure has exceeded said first threshold value. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification