Detecting particulate matter load density within a particulate filter
US8950177B2 · kind B2 · utility
2Cited by
51References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2009 |
| Grant date | Feb 10, 2015 |
| Priority date | — |
| Expiry date | Jan 22, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A control system includes a heater control module and a particulate matter (PM) load module. The heater control module selectively activates an electric heater to initiate regeneration in a zone of a particulate filter and deactivates the electric heater after the regeneration is initiated. The regeneration continues along a length of the particulate filter after the electric heater is deactivated. The PM load module determines a PM load based on an outlet temperature of the particulate filter after the regeneration is initiated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.