| 发明名称 |
EXHAUST GAS SENSOR DIAGNOSIS AND CONTROLS ADAPTATION |
| 摘要 |
Methods and systems are provided reusing processed sensor data to identify multiple types of sensor degradation. In one example, a central peak of a distribution, such as a generalized extreme value distribution, of sensor readings is re-used to identify asymmetric sensor degradation and stuck in-range sensor degradation. |
| 申请公布号 |
US2015046063(A1) |
申请公布日期 |
2015.02.12 |
| 申请号 |
US201313961628 |
申请日期 |
2013.08.07 |
| 申请人 |
Ford Global Technologies, LLC |
发明人 |
Jammoussi Hassene;Makki Imad Hassan;Linenberg Mark Thomas;Soriano Gladys G.;Behr Kenneth John |
| 分类号 |
F02D41/14 |
主分类号 |
F02D41/14 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An engine method, comprising:
indicating degradation of an air-fuel ratio sensor L-R and R-L asymmetry, as well as stuck in-range degradation, based on a central peak of a distribution of sensor reading differentials collected during selected engine operating conditions. |
| 地址 |
Dearborn MI US |
