| 发明名称 | System and method for monitoring reductant quality | ||
| 摘要 | A method of operating an internal combustion engine having a reductant delivery and storage system in an emission control system, comprising of correlating a change in a monitored operating condition with a refill event to determine whether a reductant-diluting substance has been added to the reductant storage system; and limiting vehicle operation based on the correlation. | ||
| 申请公布号 | US8769935(B2) | 申请公布日期 | 2014.07.08 |
| 申请号 | US201213429125 | 申请日期 | 2012.03.23 |
| 申请人 | Ford Global Technologies, LLC | 发明人 | Shaikh Furqan Zafar;Bogema John Paul;Van Nieuwstadt Michiel J.;Cooper Scott Donald;Zawacki Garry Anthony;Visser Jacobus Hendrik;Ruona William Charles;Webb Timothy;Kulik Ed;Chen David K. |
| 分类号 | F01N3/00;F01N3/10 | 主分类号 | F01N3/00 |
| 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 operating a system having an engine and engine fuel system, and a separate reductant delivery and storage system for an SCR catalyst, comprising: correlating a change in a monitored operating condition with a reductant storage refill event to determine a dilution of ammonia concentration from addition of a reductant-diluting substance to the reductant storage system, the correlation based on whether the change occurred within a time range from the refill event; and performing default action based on the correlation, said refill event identified based on factors comprising at least one of an angle of inclination of the reductant storage system or a road condition. | ||
| 地址 | Dearborn MI US | ||