发动机匹配优化算法的研究  

Research of engine match optimization algorithm

作　　者：胡琰[1] 李国岫[1] 李少鹏[1] 

机构地区：[1]北京交通大学机械与电子控制工程学院,北京100044

出　　处：《北京交通大学学报》2011年第4期159-162,167,共5页JOURNAL OF BEIJING JIAOTONG UNIVERSITY

基　　金：国家"863"计划项目资助(2006AA110112)

摘　　要：依据优化标定方法,设计了基于发动机排放控制的优化方案,并建立了以发动机经济性为目标,排放性作为约束的优化数学模型.对适用于该数学模型的信赖域法、模式搜索算法、遗传算法等优化算法进行了论证.针对实际发动机排放优化问题对各种算法的优劣进行了比较,并在此基础上提出了组合算法的思想.优化结果表明,组合算法全局搜索性和优化结果良好,且计算时间、计算量等较单一优化算法时均有显著改善.A new optimization scheme based on the optimization and calibration method is designed to solve the engine emission problem. A mathematical model which aims to satisfy minimum fuel con- sumption and emission rules is established. The trust-region algorithm, ALPS algorithm and genetic algorithm, applicable to the mathematical model, are all introduced, and their performance is com- pared in a real engine emission problem. Finally, two kinds of hybrid algorithms which combine all the algorithms＇ strong points are put forward. The results show that the hybrid algorithm is good at the global search and the outcome, and the computing than other optimization algorithm. time and computing amount are significantly lower

关 键 词：载运工具 优化算法 标定 排放 优化 

分 类 号：TK432[动力工程及工程热物理—动力机械及工程]