Particulate filter ash loading prediction method and vehicle using same
US8577541B2 · kind B2 · utility
5Cited by
6References
17Claims
0Family size
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Key dates
| Filing date | Oct 1, 2010 |
| Grant date | Nov 5, 2013 |
| Priority date | — |
| Expiry date | Jan 17, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4973
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A particulate filter ash loading prediction method including the steps of determining a service age for the particulate filter; calculating an ash accumulation rate in the particulate filter; determining a maximum service age for the particulate filter dependent upon the ash accumulation rate; and comparing the service age to the maximum service age. If the service age exceeds the maximum service age then indicating that a service and/or replacement of the particulate filter is needed due to ash loading.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.