Improvement of Power Performance of CNG/gasoline Dual-fuel Engine

Being the factors of own characteristics,the EFI gasoline engine is rebuild into gasoline-CNG engine;the engine's power performance is reduced.According this,this paper puts toward the scheme:using the TPS(Throttle Position Sensor) signal as a control signal,the engine fuels with CNG in low load,and then the CNG supply is shut off,the gasoline is supplied for combustion in order to improve the engine's dynamic performance in high load.This scheme can obviously improve the power and economy of CNG/gasoline Engine.