Study on the Characteristics of Diesel Particulate Filter (DPF) Initiative Regeneration

The characteristics of diesel particulate filter (DPF) initiative regeneration is studied in this paper.A computer model is established and the effects of diesel engine speed,oxygen concentration of exhaust gas,particulate mass,particulate activation energy,and exhaust temperature on the characteristics of DPF initiative regeneration were analyzed.The results show that in a suitable condition,it is possible to realize the DPF initiative regeneration by retarding the fuel injection timing to some extent to raise exhaust temperature and by adopting fuel additive or catalyst to decrease particulate activation energy.