Browse Publications Technical Papers 2002-01-0371
2002-03-04

An Analytic Model for Cylinder Pressure in a Four Stroke SI Engine 2002-01-0371

An analytic model for cylinder pressures in spark ignited engines is developed and validated. The main result is a model expressed in closed form that describe the in-cylinder pressure development of an SI engine. The method is based on a parameterization of the ideal Otto cycle and takes variations in spark advance and air-to-fuel ratio into account. The model consists of a set of tuning parameters that all have a physical meaning. Experimental validation on two engines show that it is possible to describe the in-cylinder pressure of a spark ignited combustion engine operating close to stoichiometric conditions, as a function of crank angle, manifold pressure, manifold temperature and spark timing.

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:
TECHNICAL PAPER

SI-Engine Cylinder Pressure Estimation using Torque Sensors

2004-01-1369

View Details

TECHNICAL PAPER

A Model for Predicting Residual Gas Fraction in Spark-Ignition Engines

931025

View Details

TECHNICAL PAPER

Peak Pressure Position Estimation from Structure-Borne Sound

2005-01-0040

View Details

X