Engine catalyst diagnostics
US8800356B2 · kind B2 · utility
10Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2011 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Jan 2, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Embodiments for predicting catalyst function are disclosed. One example embodiment includes applying a set of parameter readings for a given sample to a support vector machine to generate a classification output, recording a plurality of classification outputs for a plurality of successive samples over a first duration, and indicating catalyst degradation if a threshold percentage of the classification outputs indicates degraded catalyst performance. In this way, catalyst degradation may be indicated using a simplified model that does not require extensive calibration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.