Exhaust gas recirculation system for internal combustion engine and method for controlling the same
US8001953B2 · kind B2 · utility
7Cited by
0References
14Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 11, 2008 |
| Grant date | Aug 23, 2011 |
| Priority date | — |
| Expiry date | Jul 31, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In an exhaust gas recirculation system for an internal combustion engine, which includes a turbocharger; a high-pressure EGR unit; a low-pressure EGR unit; a high-pressure EGR valve; and a low-pressure EGR valve, first, the opening amount of the high-pressure EGR valve is controlled in a feedback manner, and, then, the opening amount of a low-pressure EGR valve is controlled in a feedback manner in a transitional operation period in which the operation mode of the internal combustion engine is changing. In this way, the intake air amount is promptly adjusted to the target intake air amount without causing hunting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.