Methods for controlling the operation of a particulate filter
US8612115B2 · kind B2 · utility
4Cited by
6References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2010 |
| Grant date | Dec 17, 2013 |
| Priority date | — |
| Expiry date | Oct 17, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/0812
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method of controlling the operation of a particulate filter in an exhaust gas after-treatment system may comprise calculating a ratio of particulate loading rate to filter regeneration rate using a mass-based soot load estimation scheme and comparing the ratio of particulate loading rate to filter regeneration rate to a predetermined threshold value. The method may further comprise controlling operating conditions of the particulate filter to maintain the ratio of particulate loading rate to filter regeneration rate at a value above the predetermined threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.