基于dS PACE系统的电控单元硬件在环发动机控制仿真研究

HARDWARE-IN-THE-LOOP ENGINE SIMULATION FOR ELECTRONIC CONTROL UNITS BASED ON THE dSPACE SYSTEM

现代发动机电控单元 (ECU)越来越复杂 ,但却要求开发周期越来越短。为此 ,现代的ECU开发流程中都采用了ECU硬件在环发动机控制仿真技术。本文介绍了ECU硬件在环发动机控制仿真的原理、必要性、基本形式 ;阐述了dSPACE系统的软件和硬件 ;叙述了基本的建模方法 ;利用MAT LAB/Simulink开发了用于ECU研制和测试的单缸机模型 ,进行了ECU硬件在环仿真实验 ,结果表明基于dSPACE系统的ECU硬件在环发动机控制仿真是切实可行的 ,是ECU开发和测试的有力工具。

Modern electronic control units (ECU) for engines become more complicated, but their cycles of development become shorter. Thus ECU hardware-in-the-loop engine simulation comes to be adopted in their development process. The paper introduces their principle, necessity and basic form, along with software and hardware of the dSPACE system and basic modeling methods and develops a single-cylinder diesel engine model for ECU hardware-in-the-loop engine simulation using the MATLAB/Simulink; ECU hardware-in-the-loop engine simulation experiments are carried out, showing that it is a useful tool in the development and measurement of ECU.