Methods to adapt air-fuel (A/F) controls for catalyst aging
US9890723B2 · kind B2 · utility
1Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2015 |
| Grant date | Feb 13, 2018 |
| Priority date | — |
| Expiry date | Nov 16, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A system includes an exhaust treatment system configured to treat emissions from a combustion engine via a catalyst. The system includes a controller configured to obtain an operating parameter indicating catalyst performance. The controller is configured to determine a deterioration factor indicating deterioration of the catalyst based at least in part on the operating parameter. The controller is configured to determine an adaptation term configured to modify an air-fuel ratio command for the combustion engine to account for the deterioration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.