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For homogeneous charge compression ignition (HCCI) combustion, the auto-ignition process is very sensitive to in-cylinder
conditions, including in-cylinder temperature, in-cylinder components and concentrations. Therefore, accurate control is required
for reliable and efficient HCCI combustion. This paper outlines a simplified gasoline-fueled HCCI engine model implemented
in Simulink environment. The model is able to run in real-time and with fixed simulation steps with the aim of cycle-to-cycle
control and hardware-in-the-loop simulation. With the aim of controlling the desired amount of the trapped exhaust gas recirculation
(EGR) from the previous cycle, the phase of the intake and exhaust valves and the respective profiles are designed to vary
in this model. The model is able to anticipate the auto-ignition timing and the in-cylinder pressure and temperature. The
validation has been conducted using a comparison of the experimental results on Ricardo Hydro engine published in a research
by Tianjin University and a JAGUAR V6 HCCI test engine at the University of Birmingham. The comparison shows the typical HCCI
combustion and a fair agreement between the simulation and experimental results. 相似文献
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半实物仿真为控制领域提供了一种高效、廉价的方法.本文阐述了基于dSPACE控制系统的开发步骤,结合键合图与MATLAB/Simulink建立仿真模型,并以此进行燃料电池汽车能量管理系统的半实物仿真,实验结果表明键合图与MATLAB/Simulink的结合简便了模型的建立,而dSPACE实时仿真系统也为控制系统的研究与开发提供了一个良好的试验平台,大大提高了研究的效率. 相似文献
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针对面贴式永磁同步电机(SPMSM),在高频信号注入无位置传感器运行控制中的系统不稳定因素及位置估计误差,研究一种改进的调制方法及位置补偿控制方法.在分析高频信号注入法的基础上,深入分析了信号调制中滤波器的相位偏移对系统稳定性的影响,以及电机高频模型不精确导致的位置估计误差.通过在Matlab/Simulink中搭建模型系统仿真和在dSPACE系统仿真平台实验的方法对控制系统进行设计验证.仿真及实验结果表明了带有改进的调制方法及位置补偿方法的控制系统具有良好稳定性及位置误差补偿效果. 相似文献
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汤晓燕 《沙洲职业工学院学报》2008,11(3)
给出了一种基于dSPACE的实现感应电机定子磁链和转速动态解耦的逆控制系统.根据感应电机调速系统的动态数学模型,证明其可逆性,并将静止两相坐标系下感应电机模型解耦成转速和定子磁链两个子系统.在此基础上,利用线性控制理论对各个调节器进行了设计;阐述了基于dSPACE实现感应电机解耦控制逆系统的构成.实验表明,控制方案有良好的静、动态性能. 相似文献