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