基于MATLAB的发动机万有特性曲面拟合

Fitting of Engine Performance Map Based on MATLAB

基于软件建模的理论研究方法在整车开发中占据了越来越重要的地位。发动机作为整车中最为重要的一个零部件,发动机的万有特性如何通过数学模型更准确地表达出来,对整车模型的计算精度有非常重要的意义。通过建立不同的数学模型,依靠MATLAB的曲面拟合计算功能,找到更为精确的发动机万有特性曲面拟合方程。

A research method of building mathematical models based on professional software is playing a more and more important role in vehicle development project. How to more accurately describe with mathematical models the performance map of engine that is one of the most important parts of vehicle is of great significance to the precision of vehicle calculation. A more accurate fitting equation for engine performance map is developed by building several different models and adopting the MATLAB fitting calculation function.