Method for estimating the flow rate of recirculated exhaust gas passing through a valve
US10619582B2 · kind B2 · utility
7Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2016 |
| Grant date | Apr 14, 2020 |
| Priority date | — |
| Expiry date | Dec 3, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Disclosed is a method for estimating the flow rate QEGR of exhaust gases recirculated through an exhaust gas recirculation valve connecting an exhaust circuit and an intake circuit of a combustion engine, the method including the steps: —of determining a difference in pressure ΔP between the upstream and downstream sides of the valve, determining a density ρEGR of the recirculated exhaust gases passing through the valve, determining a corrected effective area Seff_cor of the valve, estimating the flow rate QEGR of the recirculated exhaust gases from these three parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.