DPF Cleaning Period
Ash remains are left over after regeneration. These ashes largely come from the engine lubricant additive package that burns in the cylinder during regular combustion. Ash residues must be carefully removed. This cleaning procedure must be performed no more frequently than once a year or every 150,000 miles (240,000 km), whichever comes first, according to federal regulation. However, some manufacturers want to have RS service intervals that are more than 300,000 highway miles.(480,000 km).
An RS can be disabled using the OEM software to avoid activation on the shop floor since RS spark plugs are fired regularly (that is, outside of RS cycles) to reduce carbon accumulation. The majority of engine OEMs’ DPFs should typically regenerate in any situation: Although some manufacturers use DPFs with long in-operation cycles, the drawback is that they have to stop in order to regenerate.
Pyrometers, which use single and dual thermocouples to measure temperature, or PRT/RTDs. And it’s vital to remember that when these thermocouple devices are found to have failed, they should be replaced as a whole. The regeneration cycles and temperatures within the DPF are a complicated assembly that must be carefully controlled.
DPF Monitoring
A vehicle’s DPF functioning is thoroughly monitored, and several built-in safety features guard against unwelcome heat occurrences (ie, fire).
