发明名称 |
Vehicle occupant characterization method based on the power spectrum of a seat sensor output signal |
摘要 |
<p>The occupant of a vehicle seat is characterized by computing a power spectrum function (56) of data obtained from a seat sensor such as a pressure sensor in a fluid-filled seat bladder or a frame-mounted vertical accelerometer. The spectrum function is integrated over a specified frequency range (58), and compared to a threshold value that is calibrated to compensate for vehicle speed related variability (60,62). The presence of a cinched child seat is indicated when the threshold is exceeded, and the presence of a normally seated adult is indicated otherwise (62,64,68).</p> |
申请公布号 |
EP1655181(B1) |
申请公布日期 |
2008.02.27 |
申请号 |
EP20050077446 |
申请日期 |
2005.10.25 |
申请人 |
DELPHI TECHNOLOGIES, INC. |
发明人 |
PRIETO, RAYMUNDO;WAGNER, STEVE J. |
分类号 |
B60R21/015 |
主分类号 |
B60R21/015 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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