CUED Publications database

UEGO based measurement of EGR rate and residual gas fraction

Welling, O and Collings, N (2011) UEGO based measurement of EGR rate and residual gas fraction. SAE 2011 World Congress and Exhibition.

Full text not available from this repository.


A technique is presented for measuring the exhaust gas recirculation (EGR) and residual gas fraction (RGF) using a fast UEGO based O2 measurement of the manifold or in-cylinder gases, and of the exhaust gases. The technique has some advantages over the more common CO2-based method. In the case of an RGF measurement, fuel interference must be eliminated and special fuelling arrangements are is required. It is shown how a UEGO-based measurement, though sensitive to reactive species in the exhaust (such as H 2), as a system reports EGR/ RGF rates faithfully. Preliminary tests showed that EGR and RGF measurements using the O2 approach agreed well with CO2-based measurements. © 2011 SAE International.

Item Type: Article
Divisions: Div A > Energy
Depositing User: Unnamed user with email
Date Deposited: 18 May 2016 19:07
Last Modified: 26 May 2016 22:45
DOI: 10.4271/2011-01-1289