In view of the improvement measures of the optimization control algorithm for the ignition system of the hydrogen-fueled engine, the L-M neural network algorithm, Powell neural network algorithm and the
Keywords: Hydrogen-fueled Engine, L-M Algorithm, Neural Network, OptimizationCopyright © 2016 Universitas Ahmad Dahlan. All rights reserved.
IntroductionResearch on hydrogen as fuel of internal combustion engine began in the middle of nineteenth century. It fell behind for about 100 years compared with the research on traditional internal combustion engine. Although at this stage, the traditional gasoline engine and diesel engine technologies become more and more perfect and mature, but it's unable to directly use the traditional internal combustion engine for hydrogen combustion due to the particularity of hydrogen as a fuel. Its technology is not perfect and there is no commercial promotion. However, hydrogen is considered to be the most promising clean energy source in this century, with its advantages of low emission, renewable energy and so on. In the process of combustion, the ignition limit of hydrogen is wide, the combustion speed is high and the calorific value is high. This results pre-ignition, inlet backfire and other abnormal combustion phenomenon in the combustion process of internal combustion engine, so that the engine cannot operate normally [1]. How to avoid the abnormal combustion phenomenon without reducing the output power of the hydrogen-fueled engine is the research focus of the relevant researchers in various countries.Changwei, et al., have studied on the effect of hydrogen and methanol mixture combustion on the emission characteristics of hydrogen-fueled engine [2]. J.M. Gomes Antunes, et al., have studied on the influence of the high pressure direct injection technology on the hydrogen combustion characteristics of diesel engine, and the influence of homogeneous charge compression ignition technology and hydrogen injection timing and length on the performance of the hydrogen-fueled engine [3]. Xing-hua, Fu-shui Liu, et al., have studied the effects of hydrogen injection timing under different rotation speed and equivalence ratio on the formation of hydrogen mixture gas and its effect on the prevention of backfireby using computational fluid dynamics simulation [4]. The effect of EGR system on the combustion and performance of a compression ignition hydrogen-fueled engine was studied by Vinod Yadav Singh, et al., [5]. However, these studies are based on a large number of bench test or simulation process, and only a part of the operating conditions of the hydrogen-fueled engine characteristics are studied, which can't take into account the operation, emission and combustion characteristics of all the working conditions of the hydrogen-fueled engine.