摘要：In order to mitigate current environmental pol-lution, after-treatment (EAT) technologies were widely applied in vehicle diesel engines. This paper focus on the recent development of particulate mat- ter (PM) removal key EAT technologies, and pro- vide an overview of current state and shortage. At present, diesel particulates filter (DPF) can filtrate almost 99% particulates from exhaust, while the fil. tration capacity and application scope are confined by filter material properties. DPF regeneration is im- portant for normal operation of engine, researches on combining active and passive methods are necessary to investigate. As a prerequisite of timely regenera-tion, soot load determination can be realized by sen- sor methods. Model-based prediction presents huge potential in further promoting estimation accuracy(<5% now), and optimized regeneration strategy can contribute to control total CO2 emission. More accu- rate prediction methods will be established in the fu- ture with the further understanding of the mechanism of soot formation, filtration, and oxidation. Other EAT devices coupled with thermal management, also affects DPF operation and regeneration. To achieve complete clarification, the influence of inte- gration schemes on DPF performance also requires consideration, and system thermal management will be a research highlight in the near future.
