Study of a Exhaust After-Treatment System Applied to Hybrid Vehicle

In order to solve the problem that the exhaust after-treatment system often works in the failure zones, which is caused by the frequent start and stop of engine of hybrid vehicles, this paper presents a new exhaust after-treatment system which is specially designed for hybrid vehicle. According to the particular circumstances of hybrid vehicles (diesel-electric) and hybrid vehicles (gasoline-electric), this paper adds hydrocarbon absorber traps and activated carbon fiber canister in traditional exhaust after-treatment system which can collect and dispose of the harmful emissions when the temperature of catalytic converters is lower than their ignition temperature. In this way, the emissions of hybrid vehicles can be improved.