Browse Publications Technical Papers 2004-01-1369
2004-03-08

SI-Engine Cylinder Pressure Estimation using Torque Sensors 2004-01-1369

In order to maximise engine efficiency it is of interest to find the peak pressure position (PPP) of the cylinder pressure when controlling combustion engines. Cylinder mounted pressure sensors can be used to measure the pressure, but these are expensive and suffer from limited durability. Alternative pressure estimation methods using cheaper and more durable sensors are needed.
This paper shows the performance when estimating the cylinder pressure of a five cylinder SI-engine using a crankshaft integrated torque sensor. An engine model is constructed to be able to eliminate the torsional resonances in the sensed torque signal and the cylinder pressure is reconstructed using a parameterised pressure model. The performance of the estimator is studied in three different simulation cases. Finally, the performance based on measured torque is presented.

SAE MOBILUS

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

Access SAE MOBILUS »

Members save up to 18% 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:
TECHNICAL PAPER

Investigations on the Start-Up Process of a DISI Engine

2007-01-4012

View Details

TECHNICAL PAPER

Peak Pressure Position Estimation from Structure-Borne Sound

2005-01-0040

View Details

TECHNICAL PAPER

Engine Misfire Monitoring for a V12 Engine by Exhaust Pressure Analysis

980518

View Details

X