【摘要】 通过分析笛卡尔节点集二元插值算法,将其运用于发动机特定转速下燃油消耗率的拟合,得出计算公式,文章给出了计算的具体方法,并且文章在理论分析二元插值算法的基础上,提供了基于MATLAB的插值计算程序,并以此为基础计算出车辆等速百公里油耗及等加速百公里油耗值,并且在通过试验实际测量了百公里油耗,结果显示,本文所提出的计算方法是准确的,为车辆经济性计算及速比选择提供依据。更多还原

【Abstract】 In this paper, the calculating formula is educed by analyzing the dual function interpolation algorithm based on Cartesian node set and applying it to the fitting of fuel consumption rate on a particular engine speed. And on the basis of the formula, the vehicle 100 km fuel consumption at constant speed and when accelerating is calculated, which provides reference for vehicle’s economic value and gear ratio selection. In the paper, the specific method of calculation is given, and MATLAB-based interpolation algorithm program is provided on the foundation of theoretically analyzing dual interpolation algorithm. Then the vehicle 100 km fuel consumption of constant speed acceleration is calculated, and the 100 km fuel consumption is actually measured by experiment, whose results show the calculative method is accurate.更多还原