Gasoline particulate filter diagnostics
US10408114B2 · kind B2 · utility
12Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2017 |
| Grant date | Sep 10, 2019 |
| Priority date | — |
| Expiry date | Nov 8, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Methods and systems are provided for diagnostics of a gasoline particulate filter in an exhaust system. In one example, a method may include during conditions where a differential pressure sensor is exposed to changing exhaust pressure, indicating degradation of a hose coupled across a particulate filter in an exhaust system responsive to a change in differential pressure measured by the differential pressure sensor being different than an expected change, the differential pressure sensor positioned in the hose and the particulate filter positioned upstream of an exhaust tuning valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.