Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
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A Study on the Comparison of Emissions and Fuel Efficiency Performance of 2.0 Liter LPG Hybrid Engine and Vehicle

2.0 리터급 LPG 하이브리드 엔진 및 차량의 배출가스 및 연비성능 비교에 관한 연구

  • Received : 2023.11.16
  • Accepted : 2023.12.06
  • Published : 2023.12.31
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Abstract

LPG direct injection (LPDi) technology is a method of improving the weaknesses of existing LPG vehicles by directly injection into the combustion chamber. This study was conducted on the comparison of emissions and fuel efficiency performance of the engine and vehicle by applying LPDi technology. The LPDi hybrid engine's maximum output and maximum torque were measured at an equivalent level of less than 1% compared to conventional gasoline fuel. The fuel amount was corrected using the LCU controller, and the THC, CO, and NOx emissions were reduced to 90% in the operating range of the three-way catalyst through air-fuel ratio control. The analysis of THC+NOx and CO emissions in FTP-75 (CVS-75) driving mode satisfied the US LEV III SULEV30 regulation.

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Acknowledgement

본 결과물은 환경부(MOE)의 재원으로 한국환경산업기술원(KEITI)의 대기환경 관리기술 사업화 연계 기술개발사업의 지원을 받아 연구하였습니다(No. 2021003390002)

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