Gasoline Particulate Filter Technology for Euro6&China6

Paper #:
  • 2017-01-2378

Published:
  • 2017-10-08
Abstract:
In order to meet the challenging CO2 targets beyond 2020 despite keeping high performance engines, Gasoline Direct Injection (GDI) technology usually combined with charged aspiration is expanding in the automotive industry. While providing more efficient powertrains to reduce fuel consumption one side effect of GDI is the increased particle formation during the combustion process. For the first time for GDI from September 2014 there is a Particle Number (PN) limit of 6E12 #/km, which will be further reduced by one order of magnitude to 6E11 #/km effective from September 2017 to be the same level as applied to Diesel engines. In addition to the PN limit of the certification cycle NEDC further certification of Real Driving Emissions (RDE) including portable PN measurements are under discussion by the European Commission. RDE test procedure requires stable and low emissions in a wide range of engine operations and durable over a distance of 160 000 km. To achieve such stringent targets the ceramic wall-flow Gasoline Particulate Filter (GPF) is under discussion as one potential emission control device.
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