This study investigates the PN emission characteristics of direct injection petrol vehicles in Real Driving Emission (RDE) tests using a Portable Emission Measurement System (PEMS). The results of the study show that particulate matter emissions are mainly concentrated in suburban and high-speed conditions, and there is a significant positive correlation between PN emission levels and engine in-cylinder temperature. The higher the speed, the higher the emission level, but rapid acceleration will cause a large amount of particulate emissions in a short period of time. When VSP is above 0 kW/t, the higher the VSP, the higher the PN emission.


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    Title :

    PN emission characteristics of light-duty GDI vehicles under real-driving conditions


    Contributors:
    Wu, Xuan (author) / He, Chao (author)

    Conference:

    Fifth International Conference on Mechatronics and Computer Technology Engineering (MCTE 2022) ; 2022 ; Chongqing,China


    Published in:

    Proc. SPIE ; 12500


    Publication date :

    2022-12-16





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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