Diagnosis of the condition of a particle filter
US10371600B2 · kind B2 · utility
11Cited by
2References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 6, 2013 |
| Grant date | Aug 6, 2019 |
| Priority date | — |
| Expiry date | Apr 22, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An on-board diagnostic for a particle filter of a vehicle exhaust system records repeating data about flow and pressure around the particle filter. Data is recorded in virtual data bins having successive thresholds or filters within a numerical scale. Each data point is typically recorded in several bins to permit a rapid calculation of averaged data for use in the diagnostic. Sensitivity of less frequently recorded data is preserved, while giving quickly delivery of a result from the diagnostic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.