Exhaust gas recirculation control
US-2015033735-A1 · Feb 5, 2015 · US
Method of controlling an EGR valve integrated in an EGR circuit of a combustion engine
US9109522B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9109522-B2 |
| Application number | US-201213644313-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 4, 2012 |
| Priority date | Oct 12, 2011 |
| Publication date | Aug 18, 2015 |
| Grant date | Aug 18, 2015 |
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Abstract
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The invention relates to a method of controlling a combustion engine ( 1 ) comprising at least one cylinder ( 2 ) and a manifold ( 3 ) and an exhaust gas recirculation (EGR) circuit including an EGR valve. The EGR valve ( 6 ) is controlled by carrying out the following stages: a) measuring a pressure difference ΔP in a portion of the exhaust gas recirculation circuit including the EGR valve; b) selecting a burnt gas fraction set point BGR sp in the intake manifold ( 3 ); c) calculating an opening set point for the EGR valve ( 6 ) from a pressure drop relation applied in a portion of the exhaust gas recirculation circuit including the EGR valve, depending on difference ΔP at the EGR valve and on the burnt gas fraction set point BGR sp in the intake manifold; and d) controlling the EGR valve ( 6 ) as a function of the opening set point of EGR valve ( 6 ).
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of controlling a combustion engine including at least one cylinder, an intake manifold, a compressor for compressing intake air and a cooler for cooling compressed intake air and an exhaust gas recirculation circuit including an EGR valve which injects exhaust gas into the intake manifold upstream from the compressor and the cooler comprising: a) measuring a pressure difference in a portion of the exhaust gas recirculation circuit including th…
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Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
- F02D41/005Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US9109522B2 cover?
- The invention relates to a method of controlling a combustion engine ( 1 ) comprising at least one cylinder ( 2 ) and a manifold ( 3 ) and an exhaust gas recirculation (EGR) circuit including an EGR valve. The EGR valve ( 6 ) is controlled by carrying out the following stages: a) measuring a pressure difference ΔP in a portion of the exhaust gas recirculation circuit including the EGR valve; b)…
- Who is the assignee on this patent?
- IFP Energies Nouvelles
- What technology area does this patent fall under?
- Primary CPC classification F02D41/005. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Aug 18 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).