| 发明名称 |
NON-INTRUSIVE EXHAUST GAS SENSOR MONITORING |
| 摘要 |
A method for monitoring an exhaust gas sensor coupled in an engine exhaust is provided. In one embodiment, the method comprises indicating exhaust gas sensor degradation based on shape of a distribution of extreme values of a plurality of sets of lambda differentials collected during selected operating conditions. In this way, the exhaust gas sensor may be monitored in a non-intrusive manner. |
| 申请公布号 |
US2015219033(A1) |
申请公布日期 |
2015.08.06 |
| 申请号 |
US201414174806 |
申请日期 |
2014.02.06 |
| 申请人 |
Ford Global Technologies, LLC |
发明人 |
Jammoussi Hassene;Makki Imad Hassan;Banker Adam Nathan;Casedy Michael |
| 分类号 |
F02D41/14;G01M15/10 |
主分类号 |
F02D41/14 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method of monitoring an exhaust gas sensor coupled in an engine exhaust, comprising:
indicating exhaust gas sensor degradation based on a shape of a distribution of extreme values of a plurality of sets of lambda differentials collected during selected operating conditions, the shape identified based on an iterative search that successively narrows a range of values inside which the shape exists. |
| 地址 |
Dearborn MI US |
