Method for operating an internal combustion engine, method for switching off an internal combustion engine and engine control device
Патенты
Язык: |
Английский |
Тип: |
Патент на изобретение |
Номер (11) |
US 9416746 B2 |
Номер заявки (21): |
13/911,906 |
Дата подачи заявки (22): |
6 июн. 2013 г. |
Дата начала отсчета срока действия патента (24): |
|
Дата публикации патента (44,45,46): |
16 авг. 2016 г. |
Дата публикации заявки (43): |
|
Авторы |
Harmsen J.
,
Schneider M.
,
Dubkov A.A.
,
Angst M.
|
Организации |
1 |
Ford Global Technologies, LLC, Dearborn, MI (US)
|
|
A method for operating an internal combustion engine having a lean NOx trap connected downstream is provided. The method comprises in a normal operating mode, operating the internal combustion engine with a lean fuel/air mixture, and in a special operating mode, operating the internal combustion engine with a rich fuel/air mixture in order to bring about regeneration of the lean NOx trap, wherein a changeover from the normal operating mode to the special operating mode takes place when switching off of the internal combustion engine is expected.