Method for diagnosing a particle filter by means of a soot capturing device
US9556780B2 · kind B2 · utility
0Cited by
3References
10Claims
0Family size
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Key dates
| Filing date | Jan 16, 2014 |
| Grant date | Jan 31, 2017 |
| Priority date | — |
| Expiry date | Jan 16, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The invention relates to a method for diagnosing a particulate filter by means of a soot sensor, the method being based on the direct analysis of the temporal signal supplied by the soot sensor (CAP) and the use of the available quantities (PAR) in the control unit of the heat engine. These data allow for a classification (CLA) of an indicator correlated to the cumulative quantity of soot (RES) in a multidimensional space (GRA). Based on the classification (CLA), the existence of a failure of the particulate filter is determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.