Performance Evaluation of Model-Based Controller with On-board Polytropic Index Prediction Model for Compression Stroke under Transient Driving Condition of CI Engine

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Other Title
  • ディーゼル機関におけるオンボード用圧縮ポリトロープ指数予測モデルを実装したモデルベースト制御器の過渡運転性能評価

Abstract

In the conventional map control, the number of calibration becomes large to make the map for transient driving conditions, which leads to extend the development period and increase the development cost. To overcome these shortcomings, the development of the model-based control is required. The previous model-based feedforward (FF) controller for diesel engines used several empirical equations based on experiments to predict the polytropic index for the compression stroke considering heat losses. To reduce the number of experiments, the authors developed the physical model for predicting the polytropic index (referred to as the present model) and implemented on the above FF controller. Under the transient driving conditions, it was found that the FF controller with the present model could predict the polytropic index with an average error of 0.31% and the indicated mean effective pressure (IMEP) with the maximum difference of 6.4 kPa, which shows that the present model can be used in place of the empirical equation.

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Details 詳細情報について

  • CRID
    1390283659845751680
  • NII Article ID
    130007789790
  • DOI
    10.11351/jsaeronbun.51.60
  • ISSN
    18830811
    02878321
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
    • KAKEN
  • Abstract License Flag
    Disallowed

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