A Study of a Gasoline-Fueled Near-Zero-Emission Vehicle Using an Improved Emission Measurement System Nissan Motor Company, Limited

Format:

Book

Conference/Event

Author/Creator:

Tayama, Akira, author.

Conference Name:

International Fall Fuels & Lubricants Meeting & Exposition (1998-10-19 : San Francisco, California, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 1998

Summary:

This paper concerns research on an emission control system aimed at reducing emission levels to well below the ULEV standards. As emission levels are further reduced in the coming years, it is projected that measurement error will increase substantially. Therefore, an analysis was made of the conventional measurement system, which revealed the following major problems.Improvements were made to the conventional measurement system with the aim of resolving these problems. As a result, a system has been established that can measure emission levels of around one-tenth of the ULEV standards with much greater accuracy than the previous system.This improved measurement system is now being used to develop an exhaust gas aftertreatment system that integrates an electrically heated catalyst (EHC), a three-way catalyst (TWC) and an HC adsorber. In addition, the individual performance of the HC adsorber and the TWC has also been improved. Although this aftertreatment system is still at the research stage, preliminary test results indicate that it has the potential to reduce emission levels to one-tenth of the ULEV limits

Notes:

Vendor supplied data

Publisher Number:

982555

Access Restriction:

Restricted for use by site license