Systems and methods for improving catalyst diagnostics in the presence of sensor degradation
US9261033B2 · kind B2 · utility
12Cited by
3References
7Claims
0Family size
Assignee
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Key dates
| Filing date | May 22, 2014 |
| Grant date | Feb 16, 2016 |
| Priority date | — |
| Expiry date | May 22, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Systems and methods for diagnosing operation of a catalyst are presented. In one example, threshold limits for catalyst variables are adjusted in response to attributes of a catalyst monitor sensor that may vary with sensor age. The catalyst variables may provide insight into whether or not the catalyst is degraded or operating as intended.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.