轻型汽油车国六排放标准可行性研究

王军方; 尹航; 王宏丽; 肖寒; 郝春晓

doi:10.3969/j.issn.1674-991X.2017.06.091

轻型汽油车国六排放标准可行性研究

doi: 10.3969/j.issn.1674-991X.2017.06.091

中国环境科学研究院机动车排污监控中心,北京 100012

详细信息

作者简介:
王军方(1979—),女,高级工程师,博士,主要从事机动车污染防治技术研究,wangjf@vecc-mep.org.cn

通讯作者:
尹航 E-mail: yinhang@vecc-mep.org.cn

中图分类号: X51
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出版历程
- 收稿日期: 2017-07-01
- 刊出日期: 2017-11-20

Study on probability of compliance with China 6 standard for the emission from light duty gasoline vehicles

Vehicle Emission Control Center, Chinese Research Academy of Environmental Sciences, Beijing 100012, China

More Information

Corresponding author: Hang YIN E-mail: yinhang@vecc-mep.org.cn

摘要

摘要: 研究了国五排放水平的缸内直喷(GDI)汽油车和普通进气道喷射(PFI)汽油车按照国六排放标准规定的测试规程在常温(23 ℃)和低温(-7 ℃)冷启动下污染物的排放特性。结果表明:PFI汽油车的CO和HC排放量比GDI汽油车高4.3%~39.5%,NO_x、颗粒物质量(PM)和颗粒物数量(PN)排放量低69.8%~82.7%。由于GDI汽油车PN的排放量较高,与PFI汽油车相比,达到国六排放标准的难度更大。2种汽油车低速时各种气态污染物的排放量远高于中速、高速和超高速,但PFI汽油车NO_x排放量在超高速下比中速和高速有所增高,仅比低速下低约22.2%。
- 汽油车 /
- 缸内直喷 /
- 国六排放标准 /
- 颗粒物 /
- 气体污染物
Abstract: The emission characteristics of the gasoline direct injection (GDI) vehicle and the common port fuel injection (PFI) gasoline vehicle at China 5 emission level were studied under the test procedure of room temperature (23 ℃) and low temperature (-7 ℃) cold-start according to China 6 standard. The results show that the CO and HC of PFI vehicles are about 4.3%-39.5% higher than those of GDI vehicles, and the emission of NO_x, particulate matter (PM) and particulate number (PN) is about 69.8%-82.7% lower. Because of the high emission of PN, GDI vehicles are more difficult to reach China 6 standard than PFI ones. In term of speeds, the emission of various gaseous pollutants at low speed is much higher than that at medium speed, high speed and super high speed. However, NO_x emissions at super high speeds have increased, only about 22.2% lower than that of low speed.
- gasoline vehicles /
- GDI /
- China 6 standard /
- particulates /
- gaseous pollutants

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