Adaptive control of SCR urea injection to compensate errors
US8276373B2 · kind B2 · utility
13Cited by
3References
19Claims
0Family size
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Key dates
| Filing date | Jul 1, 2010 |
| Grant date | Oct 2, 2012 |
| Priority date | — |
| Expiry date | Feb 4, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method for controlling a selective catalytic reduction injection system having a storage tank, a pump, a delivery line, and an injection nozzle includes monitoring the selective catalytic reduction injection system, determining a selective catalytic reduction injector system effective area ratio, comparing the selective catalytic reduction injector system effective area ratio to a threshold, calculating a compensation factor upon surpassing the threshold, and modifying the commanded injected mass according to the calculated compensation factor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.