点火提前角对氢发动机性能的影响及智能控制技术

PERFORMANCES OF A HYDROGEN-FUELED ENGINE IN DIFFERENT IGNITION TIMING AND ITS OPTIMIZING CONTROL WITH FUZZY-NEURAL NETWORK

进行了进气管喷射的氢发动机点火提前角对发动机性能影响的研究,试验指出了点火提前角对氢发动机动力性,经济性和排放性能有较大影响。建立了模糊神经网络控制系统对点火提前角进行优化控制,建立了一个改进的模糊神经网络系统代替传统的试验方法来求解氢发动机的最佳点火提前角(MAP)。仿真和试验结果的对比研究给出该方法具有较高的运行精度。

The performances of a hydrogen-fueled engine with intake manifold in jection in various ignition times were carried out. The experimental results showed that ignition timing has great effect on power output, economy of fuel and characteristic of exhaust gas. Fuzzy-neural network (FNN) control system was set up to control optimizing ignition timing, and a improved FNN system was adopted as substitutes for traditional ignition timing map gotten by experiments in for optimizing ignition timing. The calculating results with FNN system was agreements with experimental results.