发明名称 |
Sondenkalibrierung zum Feststellen der Verschlechterung eines Katalysators |
摘要 |
A catalyst system employed in the exhaust stream of an internal combustion engine (10) wherein the catalyst deterioration is monitored by an engine controller (26) connected to a first oxygen sensor (22) mounted upstream of a catalyst (18) and a second oxygen sensor (24) mounted downstream. After a cold start of the engine (10) a calibration of the first and second sensors is conducted, to assure accuracy between the two sensors and determine if one of the sensors has failed, and also a light-off time for the catalyst (18) is determined as one way to measure the deterioration of the catalyst. |
申请公布号 |
DE69921895(T2) |
申请公布日期 |
2005.12.22 |
申请号 |
DE1999621895T |
申请日期 |
1999.04.28 |
申请人 |
FORD GLOBAL TECHNOLOGIES, LLC (N.D.GES.D. STAATESDELAWARE) |
发明人 |
HAMBURG, DOUGLAS RAY;REED, DENNIS CRAIG;MEYER, DANIEL LAWRENCE |
分类号 |
F01N11/00;(IPC1-7):F02D41/14;F01N7/00;F01N9/00;F02D41/22 |
主分类号 |
F01N11/00 |
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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