Browse Publications Technical Papers 2009-01-0732
2009-04-20

Exhaust Backpressure Estimation for an Internal Combustion Engine with a Variable Geometry Turbo Charger 2009-01-0732

Exhaust gas recirculation (EGR) is one of the key approaches applied to reduce emissions for an internal combustion engine. Recirculating a desired amount of EGR requires accurately estimating EGR mass flow. This can be calculated either from the gas flow equation of an orifice, or from the difference between charge air mass flow and fresh air mass flow. Both calculations need engine exhaust pressure as an input variable. This paper presents a method to estimate exhaust pressure for a variable geometry turbo charged diesel engine. The method is accurate and simple to fit production ECU application, therefore, saves cost of using a physical sensor.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Preview Document Add to Cart
Members save up to 16% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
JOURNAL ARTICLE

Experimental and Computational Analysis of Different EGR Systems for a Common Rail Passenger Car Diesel Engine

2009-01-0672

View Details

TECHNICAL PAPER

Selection of Injection Parameters for Various Engine Speeds in PCCI-Based Diesel Combustion with Multiple Injection

2011-01-1822

View Details

TECHNICAL PAPER

Effects of the Intake Charge Distribution in HSDI Engines

2010-01-1119

View Details

X