Transformation of Burning the High Proportion Methanol Gasoline in Electronically Controlled Gasoline Engine

In order to solve the problem that the electronically controlled gasoline engine was limited by air fuel ratio self-adaptive control and unable to work normally when the engine was fueled with the high proportion methanol gasoline,a fuel injection pulse width signal processor between the electronic control unit and injector was designed.The processor was able to extend the fuel injection pulse width signal output by electronic control unit according to the optimized gain and keep the air fuel ratio near the theoretical value when the engine was fueled with the high proportion methanol gasoline.Compared with the engine fueled with gasoline,the engine fueled with M85 methanol gasoline has slight lower power,equivalent emission indicators and slight higher energy consumption rate.