| 发明名称 |
METHOD AND SYSTEM OF DETERMINING FAILURE OF UREA QUALITY SENSOR |
| 摘要 |
A method and a system determines failure of a urea quality sensor. The method may include: determining whether a urea temperature is higher than a predetermined temperature; determining, if the urea temperature is higher than the predetermined temperature, whether a vehicle speed is faster than a predetermined vehicle speed; determining, if the vehicle speed is faster than the predetermined vehicle speed, whether a difference between a current urea quality and a previous urea quality is higher than a predetermined urea quality; and storing a failure code if the difference between the current urea quality and the previous urea quality is higher than the predetermined urea quality. |
| 申请公布号 |
US2014188327(A1) |
申请公布日期 |
2014.07.03 |
| 申请号 |
US201314093754 |
申请日期 |
2013.12.02 |
| 申请人 |
Kia Motors Corporation ;Hyundai Motor Company |
发明人 |
JUNG Jae-Yoon |
| 分类号 |
F01N11/00;B60W50/00 |
主分类号 |
F01N11/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method of determining failure of a urea quality sensor, comprising:
determining whether a urea temperature is higher than a predetermined temperature; determining, if the urea temperature is higher than the predetermined temperature, whether a vehicle speed is faster than a predetermined vehicle speed; determining, if the vehicle speed is faster than the predetermined vehicle speed, whether a difference between a current urea quality and a previous urea quality is higher than a predetermined urea quality; and storing a failure code if the difference between the current urea quality and the previous urea quality is higher than the predetermined urea quality. |
| 地址 |
Seoul KR |
