Experimental Research on High-Efficiency Gasoline&nbsp; Engine for Extended Range Electric Vehicle

ANG Yirong; XU Huanxiang; SHEN Yuanjian; MA Shuaiying

doi:10.3969/j.issn.1001-2222.2020.06.003

Vehicle Engine >

2020 , Vol. 0 >Issue 6: 13 - 18

DOI: https://doi.org/10.3969/j.issn.1001-2222.2020.06.003

Experimental Research on High-Efficiency Gasoline Engine for Extended Range Electric Vehicle

ANG Yirong ,
XU Huanxiang ,
SHEN Yuanjian ,
MA Shuaiying

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(Zhejiang Geely New Energy Commercial Vehicles Group Co.,Ltd.,Hangzhou 311228,China)

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Abstract

The ongoing electrification of automotive powertrain makes engine upgrading more challenging,while it also provides an opportunity to design and develop high-efficiency engine. Based on a bespoke single-cylinder gasoline engine for extended range electric vehicle,the influences of homogeneous ultra-lean combustion,in-cylinder water injection cooling and EGR on in-cylinder combustion process were analyzed,and the contribution of each technology in achieving 45% effective fuel thermal efficiency was studied,which presented a new path to future high-efficiency engine design and optimization.

Key words： gasoline engine; range extender; homogeneous combustion; lean burn; incylinder water injection; cooling; EGR; electric vehicle

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ANG Yirong , XU Huanxiang , SHEN Yuanjian , MA Shuaiying . Experimental Research on High-Efficiency Gasoline Engine for Extended Range Electric Vehicle[J]. Vehicle Engine, 2020 , 0(6) : 13 -18 . DOI: 10.3969/j.issn.1001-2222.2020.06.003

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