What does 'DPF regeneration in progress' mean?

[VonJuliette]

DPF regeneration in progress refers to when a certain value is reached, it will cause a decline in engine performance and fuel economy, among other aspects. The following are the methods of DPF regeneration: 1. Differential pressure sensor: Monitors exhaust backpressure through the differential pressure sensor. When the backpressure rises to a certain level, the captured particles are burned into CO2 and expelled. 2. Particulate filter: This particulate filter uses an electric heating method to create high temperatures, burning the captured particles into CO2 and expelling them. 3. Fuel: Additives are mixed into the fuel to lower the combustion temperature of particles, allowing the captured particles to burn into CO2 and be expelled at a lower temperature.