Vehicle and a method of updating aging of a selective catalytic reduction filter of an exhaust treatment system of the vehicle
US9003773B2 · kind B2 · utility
1Cited by
2References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2013 |
| Grant date | Apr 14, 2015 |
| Priority date | — |
| Expiry date | Oct 26, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A vehicle and method of updating aging of a selective catalytic reduction filter (SCRF) of an exhaust treatment system of the vehicle are disclosed. The method includes determining a desorption rate estimate of a catalyst of the SCRF and determining an ash volume estimate representative of an amount of ash collected inside the SCRF. The method also includes determining an ash correction factor from the ash volume estimate and calculating, via a controller, a corrected desorption rate value by multiplying the ash correction factor with the desorption rate estimate to update the aging of the SCRF.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.