1988-02-01

Wide Range Air-Fuel Ratio Control System 880134

A new air-fuel ratio control algorithm and its effect on automotive engine operation is described. The system consists of a wide range air-fuel ratio sensor and a single point injector with an ultrasonic fuel atomizer. The air-fuel ratio control adopts PID control and it has built-in learning control. A 16 bit microcomputer is used for the latter.
The results of three studies are given. The first deals with adaptive PID gain control for various conditions. The second is the new learning control which uses an integration terra. The third is individual cylinder air-fuel ratio control.

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

The Lean Hunting Phenomenon in Gasoline Engines

871656

View Details

TECHNICAL PAPER

A Simulation of Lean Hunting in Gasoline Engines

911809

View Details

TECHNICAL PAPER

Cylinder To Cylinder AFR Control With An Asymmetrical Exhaust Manifold in a GDI System

981064

View Details

X