| 多项式插值法绘制发动机万有特性曲线 |
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| 引用本文： | 李小华,罗福强,汤东. 多项式插值法绘制发动机万有特性曲线[J]. 农业工程学报, 2004, 20(5): 138-141 |
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| 作者姓名： | 李小华 罗福强 汤东 |
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| 作者单位： | 江苏大学汽车与交通工程学院,镇江,212013;江苏大学汽车与交通工程学院,镇江,212013;江苏大学汽车与交通工程学院,镇江,212013 |
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| 基金项目： | 国家自然科学基金资助项目(50176016) |
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| 摘 要： | 发动机万有特性可直观的反映发动机在其运行范围内的各项性能参数的变化情况。该文利用多项式插值法绘制发动机万有特性曲线。推导了三次多项式插值公式和三次多项式插值余项，绘制了发动机万有特性曲线。结果表明三次多项式插值法能精确地反映发动机特性，并可用该方法绘制发动机等油耗、等排放等特性曲线。为绘制发动机特性曲线、研究发动机性能提供较好的方法。
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| 关 键 词： | 发动机 万有特性曲线 多项式 |
| 文章编号： | 1002-6819(2004)05-0138-04 |
| 收稿时间： | 2004-02-06 |
| 修稿时间： | 2004-02-06 |
Drawing engine universal performance characteristics map using ploynomial interpolation |
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| Li Xiaohu,Luo Fuqiang and Tang Dong. Drawing engine universal performance characteristics map using ploynomial interpolation[J]. Transactions of the Chinese Society of Agricultural Engineering, 2004, 20(5): 138-141 |
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| Authors: | Li Xiaohu Luo Fuqiang Tang Dong |
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| Abstract: | The changing tendency of the performance of engine in its operational range can be directly showed in the engine characteristics map. An approach to represent universal performance characteristics using cubic polynomial interpolation was examined. The formulation of cubic polynomial interpolation and the remainder of cubic polynomial interpolation were deduced and the engine fuel consumption characteristics map was drawn by this method. Result shows that it can exactly reflect the performance of engine to use cubic polynomial to draw engine fuel consumption characteristics map. This method can also be used to draw the engine emission and other characteristics map. It provides a useful method for drawing the engine performance characteristics map. |
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| Keywords: | engine universal performance map polynomial |
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