Aftertreatment developments

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.

Filtration efficiency for the developments comparison between all particles, 10-23nm and 23+nm size.

Particle count for specific development 2 over time in the 10-23nm range.