基于DoE的柴油机排气能量管理优化

Optimization of exhaust energy management for diesel engine based on DoE

以柴油机排气能量管理的优化开发为例,采用CAMEO软件,对试验设计(design of experiments,DoE)在柴油机排气能量管理中的应用进行研究。按照DoE流程,设计覆盖全map的DoE点,建立排气能量模型并进行优化,进行5个典型工况的试验验证。结果表明,5个工况的模型优化与试验结果的偏差均在可接受范围内。DoE方法能够用较少的输入因子组合建立精确度较高的排放性能模型,大幅缩减试验样本容量,节省成本及标定时间。

Taking the optimization of diesel engine exhaust energy management as an example,the application of design of experiments(DoE)in diesel engine exhaust energy management is studied by Cameo software.According to the DoE process,the DOE points covering the whole map are chosen,and the model is established and optimized,five typical working conditions are tested and used for validation.The results show that the deviations between the model optimization and the test results are acceptable.DoE method can build a more accurate emission performance model with less input factors,effectively reduce the test sample size,save cost and calibration time.