Research The Superposed Energy Ingition System On Lean Burn And Fast Burn Engines

As the society and technology going on developing, the requirement of material for people is correspond to improve. During such the times' background, the number of the cars around the world increases quickly. However, because of some problems about the traditional engine whose fuel economy is low and the emission is serious, it will lead the entironment around the whole world to deteriorate step by step. It can not only make energy source crisis, such as oil, but also it will bring us great trouble to the entironment which people's life rely on. Accordingly, saving the energy source and protecting the environment have been ranked as the chief aim and standard of the development of the engine industry in the new century. Nowadays, the harder and harder standard of the world about the vehicle energy source economy and low emission forces the technology research on the spark-ignition combustion. During that, the lean burn and fast burn is the key research direction to the engines' combustion technique. However, the research on the new type of the ignition system is one of the key techniques for lean burn of spark-ignition engine.At the guidance of the design ideology and the basic theory on the circuit characteristic of lean burn and fast burn ignition system, this paper analyzes and studies the charging process, the discharging process and the admixture gas' ignition process of the ignition system. It adopts the charging and discharging equivalent method and demonstrates the basic design ideology's feasibility and superiority of the superposed energy type of lean burn and fast burn for a further step; At the base of analyzing and studying the theory of the traditional DC/DC voltage rising circuit, it puts forward three kinds of design methods of transformer and analyzes each excellent and lack point by contrast. Choosing the best one among them, we utilize several engineering EDA software to draw the circuit diagram and PCB map, produce the circuit board which fit the experiment requirement. Then we get contact with the factory to manufacture and improve it, put up the simple performance test; By using the simulate function of the engineering EDA software, we analyze the effect of the charging and discharging circuit characteristic which due to the changed parameters by contrast, such as the voltage and the resistance of the transformer, the number of the capacitances, the ratio of the ignition loop's number. At the base of this, the design project which compare with the two ignition circuit has been done. Choosing the best one, we design the circuit board and produce the main and the assistant ignition circuit board which will be used to the experiment; Then give an improvement to the ignition circuit board and get contact with the factory to manufacture the PCB, give a discharging test by using the equipment we own now. Later, we carry on the anti-jamming design, point out several shortcoming about the equipment and put forward a series of betterment measure; At last, put forward a conceive which integrates the circuits of the trigger, the transformer, the ignition into a circuit board and a function module, describe the future production picture, point out a direction to the industrialize improvement and application of the lean burn and fast burn ignition system.The performance test of the transformer shows that the basic capability of the transformer is nice; the anti-jamming ability toward electromagnetism is a little low. However, it can fit the need of experiment in the whole. The discharging test by using the equipment we own shows that the trigger circuit can control the ignition circuit and make it discharge. Because it still has many shortcoming on the problem of anti-jamming design and circuits' security protect, it's easy to make the spark unstabilize and the electronic components of the trigger circuit broken, so it hasn't fit the need of experiment. All the equipment still needs to be modified for a further step.