支持向量机在柴油机技术状况评估中的应用

Application of Supportive Vector Machine in Technical States Evaluation of Diesel Engine

介绍了现有的柴油机技术状况评估方法，分析了这些方法的局限性和支持向量机在处理小样本、非线性、高维数等方面的优势。提出了基于支持向量机的柴油机技术状况评估模型。确定了能够表征柴油机技术状况变化的特征，并通过实车试验提取这些特征；构建了基于支持向量机的柴油机技术状况评估模型，并对部分试验车辆柴油机进行了评估。结果证明：支持向量机在装甲车辆柴油机技术状况评估中的应用是可行的。

The present evaluating methods for the technical states of diesel engines are introduced, and the shortages of these methods and the advantages of supportive vector machine in dealing with problems such as small samples, non-linear problem and high dimension are analyzed. The model for evaluating technical states of diesel engine based on supportive vector machine is proposed. The characters reflecting the change of technical states of the diesel engine are decided and extracted through tests on real vehicles. The evaluating model based on supportive vector machine is built and used to evaluate some engines on tank. The results indicate that it is feasible for supportive vector machine to be used in technical state evaluation of diesel engines.