Systems and methods for NOx sensor diagnostics
US9388728B2 · kind B2 · utility
14Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2013 |
| Grant date | Jul 12, 2016 |
| Priority date | — |
| Expiry date | Nov 8, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Systems and methods are disclosed for diagnosing gain rationality of an NOx sensor that is downstream of a selective catalytic reduction (SCR) catalyst. Sensor diagnostics are performed while maintaining reductant dosing to the SCR catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.