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Investigations on the Emission Characteristics of China VI Gasoline Passenger Cars

机译：中国VI汽油乘用车排放特性的调查

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摘要

To reduce vehicle emissions and control air pollution, China adopted CHINA VI emission standard in 2016, which is one of the most stringent emission standards in the world. In this paper, the emission characteristics of a total of 152 China VI gasoline passenger cars have been investigated in order to understand the present situation of the emission level. Results showed that considering the CHINA VIa limits, the passing rate of A-class passenger cars was higher, while that of B-class was higher. In addition, the influence of the engine types, vehicle models and origin countries on the emission characteristics is also discussed. For both A-class and B-class gasoline passenger cars, CO emissions of vehicles with T engines (Turbocharger engines) were lower, however PN and PM emissions were higher, compared to NA engines (Naturally aspirated engines). NOx, PN and PM emissions were lower for sedan compared to SUV. THC, PN and PM emissions of own independent brand vehicles need to be improved. The qualified rates of Japanese and Korean brand vehicles were the highest, whether it was CHINA VIa or CHINA VIb limits.
机译：为了减少车辆排放和控制空气污染，2016年通过中国VI排放标准，这是世界上最严格排放标准之一。本文研究了152名中国VI汽油乘用车的排放特点，以了解排放水平的现状。结果表明，考虑到中国通过限制，一流乘用车的通过率较高，而B级乘客则较高。此外，还讨论了发动机类型，车辆模型和原始国家对排放特征的影响。对于A级和B级汽油乘用车，与N发动机（天然吸气发动机）相比，使用T发动机（涡轮增压器发动机）的车辆的CO排放量较低，但是PN和PM排放量更高。与SUV相比，NOx，PN和PM排放较低，轿车较低。需要改进自己独立品牌车辆的PN，PN和PM排放。无论是中国通过或中国VIB限制，日本和韩国品牌车辆的合格率最高。

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