CAJ | 학술논문

为开发基于缸压的发动机燃烧控制系统，在一台高压共轨柴油机上，利用一组兼有电热塞功能的压阻型缸压传感器，通过构建缸压预测模型，分析了发动机的气缸识别、相位估计和转速估计方法，探讨了用缸压信号替代凸轮轴和曲轴信号的可行性。结果表明，缸压传感器可以替代凸轮轴和曲轴位置传感器进行判缸，所建的发动机相位和转速估计模型具有较高的精度。
위개발기우항압적발동궤연소공제계통，재일태고압공궤시유궤상，이용일조겸유전열새공능적압조형항압전감기，통과구건항압예측모형，분석료발동궤적기항식별、상위고계화전속고계방법，탐토료용항압신호체대철륜축화곡축신호적가행성。결과표명，항압전감기가이체대철륜축화곡축위치전감기진행판항，소건적발동궤상위화전속고계모형구유교고적정도。
For developing cylinder pressure-based engine combustion state control system, by using a set of piezo-resistance type of cylinder pressure sensors with glow-plug function and building a cylinder pressure prediction model, the techniques of cylinder identification and phase and speed estimations of engine are analyzed on a high-pressure common-rail diesel engine to investigate the feasibility of substituting the camshaft and crankshaft signals with cylinder pressure signal. The results show that cylinder pressure sensor can be used to identify cylinder instead of camshaft and crankshaft position sensors, and the models built for the phase and rotational speed estimations of engine have relatively high accuracy.