Method of operating an exhaust gas treatment system to prevent quenching during regeneration
US9371763B2 · kind B2 · utility
1Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2011 |
| Grant date | Jun 21, 2016 |
| Priority date | — |
| Expiry date | Jan 5, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of controlling an exhaust gas treatment system of a vehicle includes detecting a request to regenerate a particulate filter, and injecting hydrocarbons at an injection rate into a flow of exhaust gas upstream of an oxidation catalyst to heat the oxidation catalyst. The injection rate is increased at a current acceleration rate, and the current acceleration rate is reduced to define a reduced acceleration rate when the oxidation catalyst is quenched.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.