Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
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A Study on the Fuel Injection System Simulating a Vehicle Driven with FTP-75 Mode for Cold Transition Period

FTP-75 냉간 주행 모드로 운전하는 차량의 연료분사 모사시스템에 관한 연구

  • 오대산 (서울과학기술대학교 자동차공학과) ;
  • 이충훈 (서울과학기술대학교, 자동차학과)
  • Received : 2011.02.21
  • Accepted : 2011.06.05
  • Published : 2011.06.30
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Abstract

A fuel injection system which is operated with a real vehicle driving simulation was developed as an alternative to a vehicle test for the fuel injectors. The sensor signals that are supplied to the ECU were measured and recorded as a data file for a vehicle driven in FTP-75 mode in a chassis dynamometer. The imperative sensor signals of the throttle position, vehicle speed, engine speed, crank position, cam position, intake air flow, and cooling water and intake air temperature were reconstructed using FPGA DAQ boards and a PXI computer. The scanning results showed good agreement with the input signals that were reconstructed. The ECU HILS system operated successfully to drive six fuel injectors, which injected fuel in the same pattern as if they were mounted in the vehicle driven in FTP-75 mode. Also, the fuel injection system developed in this research shows the possibility of application in evaluating the characteristics of fuel injection rate for injectors according to properties of injected fuel with the real driving mode of vehicles.

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References

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