Exhaust emission control system of internal combustion engine
US6666019B2 · kind B2 · utility
9Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2002 |
| Grant date | Dec 23, 2003 |
| Priority date | — |
| Expiry date | Mar 27, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An exhaust emission control system of an internal combustion engine capable of post injection is disclosed which provides control such that the injection timing in sub injection is set to a point earlier than the target injection timing when the sub injection is started, and the injection timing in the sub injection is then delayed to the target injection timing. This realizes the post injection under the optimum conditions and enables an efficient rise in the exhaust temperature while inhibiting deterioration of the drivability due to a rapid change in torque.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.