Air-Fuel Control to Reduce Emissions, II. Engine-Catalyst Characterization Under Cyclic Conditions

Format:

Conference/Event

Author/Creator:

Wang, Weiming, author.

Conference Name:

1980 Automotive Engineering Congress and Exposition (1980-02-25 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1980

Summary:

An experimental program was carried out to investigate the effect of changing the frequency and amplitude of air-fuel fluctuation on catalyst performance. From experimental data, physical characteristics that relate the catalyst performance between the cyclic and static air-fuel conditions were identified, and a frequency domain model is established for the catalyst to allow prediction of its system performance based on its intrinsic properties. By utilizing the concept of air-fuel maldistribution in characterizing the engine exhaust and treating it in frequency domain, this catalyst model can be used to simplify the prediction of emission performance when the engine exhaust air-fuel is known, and optimized strategies for air-fuel control can be derived

Notes:

Vendor supplied data

Publisher Number:

800052

Access Restriction:

Restricted for use by site license