한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제10권1호
  • /
  • Pages.59-66
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  • 2002
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  • 1225-6382(pISSN)
  • /
  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
권호 표지

HSDI Common-Rail 인젝터 모델링 및 니들 변위 추정에 관한 연구

A Study on the Model of an HSDI Common-Rail Injector and the Estimation of Needle Lift

  • 발행 : 2002.01.01
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초록

This paper presents the process of the needle lift estimation ova common-rail injector fur HSDI(High Speed Direct Injection) diesel engines. A nonlinear mathematical model of dynamic behaviors of common-rail injector is established at first. Based on the mathematical model of the common-rail injector, the methodology of estimating the injector needle lift is introduced. A sliding mode observer is applied to overcome the model uncertainties. The common-rail injector model and the needle lift estimator are verified by simulations and experiments. The simulation and experimental results indicate that the model outputs are in a good agreement with experimental data, and the proposed nonlinear sliding observer can effectively estimate the needle lift.

키워드

참고문헌

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  8. 선우명호, 윤팔주, 박승범, 성경훈, 'HSDI Common-rail 분사계 모델링 및 분사율 예측에 관한 연구,' 제8회 G7 차세대자동차기술논문집, pp.14-19, 2000