Evolution of Tailpipe Particulate Emissions From GDI Turbo-Powered Mild-Hybrid SUV With Gasoline Particulate Filter Umicore Autocat USA Incorporated

Format:

Book

Conference/Event

Author/Creator:

Nipunage, Sanket, author.

Contributor:

Craig, Angus

Moser, David H.

Tao, Tinghong

Warkins, Jason

Conference Name:

SAE WCX Digital Summit (2021-04-13 : Live Online, Pennsylvania, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2021

Summary:

The wall-flow filter has now been commercialized for aftertreatment systems in light-duty gasoline engines. This technology, known as the gasoline particulate file (GPF), represents a durable solution for particulate emissions control. The goal of this study was to track the evolution of tailpipe particulate emissions of a GDI turbo-powered mild-hybrid light duty truck from a 0mile to the certification mileage of 3000 mile condition. To this purpose, a new model North American sport utility vehicle with a production GPF aftertreatment system was applied to chassis emissions dyno testing and typically road mileage accumulation. In 2018, a new model year NA SUV was purchased and the stock NAFTA aftertreatment system replaced with a production China 6b-compliant aftertreatment system comprised of a close-coupled TWC followed by a coated GPF. The vehicle was the tested at 0, 500, 1000, 1800, and 3000 mileage intervals for the evolution of tailpipe particulate emissions; for mass, PN, and size distribution. Industry standard methods and analytic methods were applied throughout this study to align with the future NA standards; California's LEVIII, and US EPA T3.Correlations are presented on the nature of FTP chassis testing strategy and soot particulate emission capture within GPF aftertreatment of new mild-hybrid GDI powered vehicles. The impact of mild hybrid and start-stop capabilities was also studied.Tailpipe emission results showed a decrease in TPM and a shift in the particle count and size range as the vehicle accumulated typical mileage to the 3000mi certification limit.Mileage accumulation and driving exposure on the aftertreatment has subsequently been completed beyond 20k miles, and GPF performance is further characterized

Notes:

Vendor supplied data

Publisher Number:

2021-01-0582

Access Restriction:

Restricted for use by site license