Method for predicting NOx amount and exhaust system using the same
US8776506B2 · kind B2 · utility
1Cited by
2References
14Claims
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Key dates
| Filing date | Jun 30, 2011 |
| Grant date | Jul 15, 2014 |
| Priority date | — |
| Expiry date | Feb 1, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method for predicting a NOx amount may include detecting an O2 amount in an intake air, calculating a reference O2 amount in the intake air according to a driving condition of an engine, calculating a reference NOx amount contained in an exhaust gas according to the driving condition of the engine, and primarily correcting the reference NOx amount based on the detected O2 amount in the intake air and the reference O2 amount in the intake air according to the driving condition of the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.