| 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 characteristics 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 | US9074513(B2) | 申请公布日期 | 2015.07.07 |
| 申请号 | US201213352885 | 申请日期 | 2012.01.18 |
| 申请人 | Ford Global Technologies, LLC | 发明人 | Makki Imad Hassan;Kumar Pankaj;Kerns James Michael;Jammoussi Hassene |
| 分类号 | G01N33/00;F01N11/00;F02D41/14;F02D41/28 | 主分类号 | G01N33/00 |
| 代理机构 | Alleman Hall McCoy Russell & Tuttle LLP | 代理人 | Voutyras Julia;Alleman Hall McCoy Russell & Tuttle LLP |
| 主权项 | 1. A method of monitoring an exhaust gas sensor coupled in an engine exhaust, comprising: collecting a plurality of sets of lambda differentials during selected engine operating conditions from an exhaust sensor; indicating exhaust gas sensor degradation based on characteristics of a distribution of extreme values of the plurality of sets; and adjusting a fuel injection amount and/or timing based on the indicated degradation. | ||
| 地址 | Dearborn MI US | ||