| The motorcycle's emission problems become more and more serious with the development of Chinese economy and the increase of motorcycle's quantity. Most of carburetor motorcycle can not reach the new emission control regulation. The paper designs the motorcycle's electronic fuel injection system. The mathematical model of the electronic fuel injection system basic fuel injection pulse-width MAP and ignition advance angle MAP is set up. At the same time, the simulating result is compared with the actual MAP. Besides, fuzzy control technology is used in motorcycle's idle speed control in order to control the idle instability and decrease the exhaust emission; Finally, engine bad experiments and motorcycle integer experiments are done. The results show that the new motorcycle is agreed with carburetor motorcycle in dynamic characteristic and fuel economic characteristic, but exhaust emission is decrease greatly.In conclusion, the set up of initial MAP model can shorten the cycle of the electronic fuel injection system design. The instability of the engine idle-speed is controlled by using fuzzy control technology. The new motorcycle can achieve the strict emission law and is worthy of being spread. |
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