| 发明名称 |
METHODS AND SYSTEMS FOR DIAGNOSING AN INTAKE OXYGEN SENSOR BASED ON PRESSURE |
| 摘要 |
Methods and systems are provided for diagnosing an intake oxygen sensor. In one example, a method may include indicating degradation of an intake oxygen sensor based on a first time constant of an output of the intake oxygen sensor and a second time constant of an output of a throttle inlet pressure sensor. The method may further include adjusting EGR flow based on the output of the intake oxygen sensor and the output of the throttle inlet pressure sensor when the intake oxygen sensor is not degraded. |
| 申请公布号 |
US2016177847(A1) |
申请公布日期 |
2016.06.23 |
| 申请号 |
US201414573060 |
申请日期 |
2014.12.17 |
| 申请人 |
Ford Global Technologies, LLC |
发明人 |
Surnilla Gopichandra;Kim Yong-Wha;Uhrich Michael James;Clark Timothy Joseph |
| 分类号 |
F02D41/00;F02M25/07;F02D41/26;F02M35/10 |
主分类号 |
F02D41/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method comprising:
indicating degradation of an intake oxygen sensor based on a first time constant of an output of the intake oxygen sensor and a second time constant of an output of a throttle inlet pressure sensor. |
| 地址 |
Dearborn MI US |
