The overall aim is to develop a gasoline particulate filter (GPF) to allow vehicles to comply with upcoming Euro 6 RDE limits with particle number emissions measured to a 10nm size threshold
New aftertreatment systems including GPFs under test & development:
- Coating developed with lower cold flow and soot loaded backpressure than reference part.
- Good PN filtration over the WLTC, especially for 10-23nm particles.
- Low tail pipe PN observed on a current-technology filter screening vehicle.