METHOD OF CONDITIONING A PARTICLE FILTER

摘要

A method of conditioning a particle filter provided for receiving exhaust gases from internal combustion engine is provided and includes providing a first engine control mode and a second engine control mode, wherein in the second engine control mode at least one combustion control parameter that affects the characteristics of particles emitted together with and carried by the exhaust gases from the engine is different in relation to the first control mode such that the filling rate of the particle filter with particles is increased compared to the filling rate that would have been achieved with the first engine control mode, determining a soot loading status of the particle filter, and temporarily applying the second engine control mode to the engine based on the soot loading status.

主权项

1. A method of conditioning a particle filter (9) provided for receiving exhaust gases from an internal combustion engine (1), wherein said method comprises the steps of
providing a first engine control mode and a second engine control mode, wherein in the second engine control mode at least one combustion control parameter that affects the characteristics of particles emitted together with and carried by the exhaust gases from the engine (1) is different in relation to the first control mode such that the filling rate of the particle filter (9) with particles that will increase the ability of the particle filter (9) to trap smaller particles is increased compared to the filling rate that would have been achieved with the first engine control mode, temporarily applying said second engine control mode to the engine as a response to a regeneration of the particle filter or based on a current soot loading status.