Further Development of an On-Board Distillation System for Generating a Highly Volatile Cold-Start Fuel The University of Alabama

Format:

Conference/Event

Author/Creator:

Ashford, M. D., author.

Conference Name:

SAE 2005 World Congress & Exhibition (2005-04-11 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2005

Summary:

The On-Board Distillation System (OBDS) extracts, from gasoline, a highly volatile crank fuel that enables simultaneous reduction of start-up fuel enrichment and significant ignition timing retard during cold-starting. In a previous paper we reported reductions in catalyst light-off time of >50% and THC emissions reductions >50% over Phase I of the FTP drive cycle.The research presented herein is a further development of the OBDS concept. For this work, OBDS was improved to yield higher-quality start-up fuel. The PCM calibration was changed as well, in order to improve the response to intake manifold pressure transients. The test vehicle was tested over the 3-phase FTP, with exhaust gases speciated to determine NMOG and exhaust toxics emissions. Also, the effectiveness of OBDS at generating a suitable starting fuel from a high driveability index test gasoline was evaluated.The key benefits attributable to the use of the OBDS with the improved calibrations were reductions in NMOG and CO emissions of 81% and 87%, respectively, over the FTP drive cycle. Additionally, catalyst light-off time was reduced by 55%

Notes:

Vendor supplied data

Publisher Number:

2005-01-0233

Access Restriction:

Restricted for use by site license