面向控制的电控单体泵柴油机仿真

为拓宽电控单元硬件在环仿真应用范围,进行了电控单体泵柴油机建模仿真。提出了面向控制的电控柴油机建模的要求和模型选择,在Matlab/Simulink中,建立了柴油机简化非线性模型以及电控单体泵系统模型,模型验证表明所建的柴油机模型具有较好的准确性;以计算时间和计算参数为衡量指标,分析和对比了不同的计算步长和计算方法对模型计算结果的影响;进行了实例模型应用试验,结果表明模型能实时准确地满足ECU硬件在环仿真要求。

Simulation of Electronic Unit Pump Diesel Engine Oriented to Control

To broaden the range of hardware in loop simulation for electronic controlled unit in application,a study on model simulation of electronic unit pump diesel engine oriented to control is made,the requirements and selection of simulation model oriented to control in electronic unit pump diesel engine are provided,and the model of simplified nonlinearity in diesel engine and electronic unit pump system are established in Matlab/Simulink.Model verification shows that this model can achieve fairly good accuracy.With the calculation time and parameter as evaluation index,different calculation steps and methods affecting the model output are analysed and compared.Real model is applied into hardware-in-loop simulation test,its results show that the model can perform real-time ECU hardware-in-loop simulation test accurately.