Optimum Control of an S.I. Engine with a λ=5 Capability University of Melbourne

Format:

Conference/Event

Author/Creator:

Lumsden, Grant, author.

Conference Name:

International Congress & Exposition (1995-02-27 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1995

Summary:

HAJI (Hydrogen Assisted Jet Ignition) is an advanced combustion initiation system for otherwise standard S.I engines. It utilises the fluid mechanics of a turbulent, chemically active jet, combined with the reliability of spark igniting rich hydrogen mixtures. The result is an extremely robust ignition system, capable of developing power from an engine charged with air-fuel mixtures as lean as λ = 5.Experiments have been performed using a single cylinder engine operating on gasoline in the speed range of 600-1800 r/minutes Data are presented in the form of maps which describe fuel efficiency, combustion stability and emissions with respect to load, speed, air-fuel ratio and throttle. The results are incorporated into a model of a known engine and vehicle and this is used to estimate performance over the Federal drive-cycle. Using an optimised fueling strategy enabled a 98% reduction in engine-out NOx emissions to be realised concomitant with a 22% reduction in fuel used, compared with using a stoichiometric strategy

Notes:

Vendor supplied data

Publisher Number:

950689

Access Restriction:

Restricted for use by site license