Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
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Comparisons of the Particle Emission Characteristics Between GDI and MPI Vehicles

GDI와 MPI 자동차의 미세입자 배출특성 비교

  • Received : 2014.09.24
  • Accepted : 2014.12.16
  • Published : 2014.12.31
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Abstract

As the regulations for Particulate Matter (PM) and Particle Number (PN) emissions from Gasoline Direct Injection (GDI) Vehicle stringent recently, a lot of studies have been made on the emission characteristics of PM and PN. In this study, PM and PN emission characteristics were compared to GDI and Multi Port Injection (MPI) Vehicles using the Condensation Particle Counter (CPC) measurement equipment. And driving mode is divided into normal driving mode (CVS-75, NEDC, NIER 6, NIER 9) and a constant speed driving mode (10 km/h, 35 km/h, 80 km/h, 110 km/h) to evaluate the characteristics in the various operating conditions. In the results, most of the driving mode, PM and PN were emitted from GDI Vehicle more than MPI Vehicle. However, in the constant speed mode of 110 km/h, PM and PN from MPI Vehicle were also a lot of emission. It is determined to cause a difficulty in the fuel injection control of the MPI Vehicle.

Keywords

References

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  1. Study on the Injection Characteristics using Injection Rate in a Direct-injection Gasoline Injector with Multi-hole vol.21, pp.1, 2016, https://doi.org/10.15435/JILASSKR.2016.21.1.20