An Engine-Dynamometer Study of the A/F Compatibility Between a Three-Way Catalyst and an Exhaust Gas Oxygen Sensor Research Staff, Ford Motor Company Dearborn, MI

Format:

Conference/Event

Author/Creator:

Hamburg, D. R., author.

Conference Name:

Passenger Car Meeting and Exposition (1983-06-06 : Dearborn, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1983

Summary:

An engine-dynamometer study was performed to quantify the air-fuel ratio (A/F) offset between the window of a three-way catalyst (TWC) and the closed-loop control point of an exhaust gas oxygen (EGO) sensor. In this study, the effects of rpm, torque, EGR, and A/F modulation were explored along with the age of the TWC and EGO sensor. In general, it was determined that the closed-loop EGO sensor control point shifts lean as a function of increasing feedgas NOx concentration, thus causing the engine A/F to move away from the high NOx conversion efficiency regime of the TWC

Notes:

Vendor supplied data

Publisher Number:

830986

Access Restriction:

Restricted for use by site license