发明名称 |
Sensor performance monitoring |
摘要 |
<p>A method is described for monitoring the performance of a sensor used to measure a vehicle or engine operating parameter in an automotive vehicle having an internal combustion engine (10) with an intake manifold (44) coupled through a check valve (34) to a brake booster (130). The method comprises measuring a brake booster pressure (P66), calculating an estimate of the operating parameter based on the brake booster pressure, and determining degradation of the sensor (142) based on a comparison of the measurement of the operating parameter derived from the sensor with the estimate calculated on the basis of the brake booster pressure. <IMAGE></p> |
申请公布号 |
EP1114926(A2) |
申请公布日期 |
2001.07.11 |
申请号 |
EP20000311483 |
申请日期 |
2000.12.20 |
申请人 |
FORD GLOBAL TECHNOLOGIES, INC. |
发明人 |
KERNS, JAMES MICHAEL;RUSSELL, JOHN DAVID |
分类号 |
B60T17/02;B60T17/22;F02D41/22;(IPC1-7):F02D41/00 |
主分类号 |
B60T17/02 |
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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