| 发明名称 |
METHOD FOR DIAGNOSING EGR SYSTEM |
| 摘要 |
A method for diagnosing an exhaust gas recirculation (EGR) system includes: a setting step of setting a temperature map with respect to a temperature at an outlet side of an EGR line for an output value reflecting a driving state of a vehicle in a state in which an EGR valve is closed; a measuring step of measuring the temperature at the outlet side of the EGR line at the time of an operation of the EGR system; and a diagnosing step of diagnosing that a fault has been generated in an EGR system when the measured temperature at the outlet side of the EGR line is equal to or less than a reference value set in the temperature map. |
| 申请公布号 |
US2014372010(A1) |
申请公布日期 |
2014.12.18 |
| 申请号 |
US201314026317 |
申请日期 |
2013.09.13 |
| 申请人 |
Kia Motors Corp. ;Hyundai Motor Company |
发明人 |
Han Seung Hee |
| 分类号 |
G01M15/10 |
主分类号 |
G01M15/10 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for diagnosing an exhaust gas recirculation (EGR) system, comprising:
setting a temperature map with respect to a temperature at an outlet side of an EGR line for an output value reflecting a driving state of a vehicle in a state in which an EGR valve is closed; measuring the temperature at the outlet side of the EGR line at a time of an operation of the EGR system; and diagnosing that a fault has been generated in an EGR system when the measured temperature at the outlet side of the EGR line is equal to or less than a reference value set in the temperature map. |
| 地址 |
Seoul KR |
