Learning of EGR valve lift and EGR valve flow transfer function
US9267453B2 · kind B2 · utility
8Cited by
9References
19Claims
0Family size
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Key dates
| Filing date | Aug 22, 2013 |
| Grant date | Feb 23, 2016 |
| Priority date | — |
| Expiry date | Jun 6, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Methods and systems are provided for improving accuracy of delta pressure over valve (DPOV) based EGR flow measurement during low valve lift conditions by learning errors in EGR valve lift and/or EGR valve flow transfer function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.