An experimental and simulation study on the cold start behaviour of particulate filters with wall integrated three way catalyst.

Highlights: [•] Temperature step experiments are used to compare the dynamic cold-start behaviour. [•] A significantly delayed light-off is observed for the particulate filter. [•] A numerical simulation model for the gasoline particulate filter is presented. [•] The experimentally observed delayed light-off is well predicted by the model. [•] Sensitivity analyses identify the physical effects contributing to this delay. [ABSTRACT FROM AUTHOR]