Diesel Combustion Prediction in Transient Operation Using a New Cycle-simulation (Fourth Report)

A transient engine simulation model, which consists of a zero-dimensional diesel combustion model, a one-dimensional gas flow model and an engine control model, was developed. By combining the engine control model with the previously developed engine model, it was made possible to predict the change of the combustion characteristics with the calibration of the engine control program. Application of this model to the New European Driving Cycle showed a good agreement with the measured data.0次元ディーゼル燃焼シミュレーションに、1次元ガス流れエンジンモデルと，エンジンの制御プログラムを連成，エンジン回転数，燃料噴射量，排気再循環率などが遅れを持ちつつ変化する過渡挙動を表現可能なモデルを開発した．これにより，制御プログラムのフィードバック系影響も考慮した燃焼特性予測が可能となった．