发明名称 |
Vehicle occupant weight estimation apparatus |
摘要 |
<p>An improved weight estimation apparatus includes a closed elastomeric bladder filled with fluid and installed in the foam cushion of a vehicle seat bottom, with at least one pressure sensor installed in a closed exit port of the bladder. A temperature sensor disposed in proximity to the bladder provides a temperature signal, and a controller estimates the weight of the occupant based on the temperature and pressure signals. The pressure sensor is preferably configured to sense the gage pressure -- that is, the differential pressure between the fluid and atmospheric pressure -- at the center of gravity of the fluid in order to provide a stable output independent of changing atmospheric pressure and changing orientation of the bladder due to vehicle pitch and roll.</p> |
申请公布号 |
EP0900705(A3) |
申请公布日期 |
2000.02.02 |
申请号 |
EP19980202639 |
申请日期 |
1998.08.05 |
申请人 |
DELCO ELECTRONICS CORPORATION |
发明人 |
MURPHY, MORGAN DANIEL;MYERS, ROBERT JOSEPH;ROE, PAMELA ANN;PIPER, WILLIAM LLOYD |
分类号 |
B60N2/00;B60N2/44;B60N5/00;B60R21/01;B60R21/015;B60R21/16;G01G5/04;G01G5/06;G01G19/414;G01G19/52;G01G23/48;G01L1/02;(IPC1-7):B60R21/32;B60R21/00 |
主分类号 |
B60N2/00 |
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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