基于PROSIMS的汽车燃油经济性仿真与分析

Simulation and analysis for automobile fuel economy based on PROSIMS

采用曲面拟合方法描述发动机的万有特性曲线,利用最小二乘法和线性回归原理建立了发动机万有特性数学模型。建立汽车不同驾驶模式下的燃油消耗数学模型,并将所建立的模型导入过程仿真软件PROSIMS中。经对06款骐达(TIIDA)计算,结果基本符合实际情况。

The engine universal performance curve was drawn by using surface fitting method. The engine fuel consumption model was established by using the minimum double multiplying and linear regression principle. A fuel economy calculation in various driving model is also established. The simulation and calculation programs including the programs of engine fuel consumption performance model and various driving modes are written. All established models are input into Process Simulation Software （shorted for PROSIMS）. By calculation of TIIDA 2006, the effect corresponds to actual situation.