Emission Control Technology Assessment of the Light Duty Gasoline Vehicles based on the Comprehensive Fuzzy Evaluation

The fuzzy comprehensive evaluation method was used to evaluate the emission control technology of light gasoline vehicles. According to the characteristics of light gasoline vehicle emission control technology,a comprehensive evaluation index system including 10 indicators such as environment,economy and technology etc. was constructed,which could effectively screen out the best applicable technology as an important reference. Taking the China Ⅵ light gasoline vehicle as an example,quantitatively evaluated its environmental,economic and technical indicators for TWC,FWC,TWC + GPF,TWC + cGPF,TWC + LNT emission control technologies and programs,and examined the best available technology. The results showed that the high-performance emission control technology was the TWC + cGPF emission control technology program,which is the current mainstream technical solution for the light gasoline vehicle to reach the China Ⅵ emission regulations and to meet more stringent emission standards in the future. It also provided scientific methods for the best applicable technology assessment in the mobile vehicle industry.