Controlling regeneration of an emission control device
US8607549B2 · kind B2 · utility
2Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 21, 2010 |
| Grant date | Dec 17, 2013 |
| Priority date | — |
| Expiry date | Jul 18, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In one approach a method for operating an engine including a DPF is provided. The method includes adjusting a post fuel injection amount based on a rate of change of engine torque during DPF regeneration. As one example, the adjusting includes reducing the amount when the rate of change is positive, and increasing the amount when the rate of change is negative. Furthermore, the method may also include delivering exhaust gas to a turbocharger turbine, to an oxidation catalyst, and then a DPF, the adjusting of the post fuel injection further based on thermal inertia of the turbocharger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.