1981-02-01

Optimal Closed-Loop Spark Control of an Automotive Engine 810058

This work concerns the application of optimization theory to develop control laws for use in Closed-loop control strategies to minimize the effect of environmental changes, manufacturing tolerances, and time degradation. The paper describes the acquisition of engine mapping data for a 2.3L, 4 cylinder engine, the use of the data to develop analytical functions describing the fuel consumption and emissions, and the use of the functions in an optimization procedure to arrive at control strategies and driving cycle predictions of fuel consumption and emissions. The optimum schedules were then used to determine a closed-loop spark control strategy which yielded a 2% improvement in fuel economy over the open-loop control when the relative humidity was 75% at 90°F.

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:
JOURNAL ARTICLE

A General 3D Model to Analyze Particle Transport Into a Partial-Flow-Particulate-Filter

2010-01-0881

View Details

TECHNICAL PAPER

Simulation Study of the Series Sequential Turbocharging for Engine Downsizing and Fuel Efficiency

2013-01-0935

View Details

TECHNICAL PAPER

Development of a Low-Cost Fuel Injection System for Use on Small Utility Engines

1999-01-3292

View Details

X