Adaptive air/fuel control applied to a single point injection system for SI engines 841297

The paper describes a method of improving the air/fuel (A/F) accuracy of a single point fuel injection system that is controlled by a microprocessor. The method develops correction factors as a function of engine speed and manifold absolute pressure. The correction factors are stored in keep alive memory (KAM) for future use. The correction factors reduce A/F deviations during both open and closed loop operation thereby improving three way catalyst (TWC) efficiency and eliminating the need for a secondary air system.


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


Members save up to 43% off list price.
Login to see discount.
Special Offer: With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.