Experimental research of automobile fuel injector heating module

HAO Rui-dong， SUN Jian， WU Chun-chun
（Suzhou Zeontech Electronics Co. Ltd.， Suzhou 215200， China）

Abstract：Ethanol fuel is oxygenated fuel，non-toxic，no harm to environment，high heat of vaporization，engine fueled with ethanol could achieve smokeless discharge，and could significantly reduce the emission of CO. Ethanol vaporization latent heat，theoretical air-fuel ratio under the evaporation temperature is greater than that of conventional gasoline，but not easy to start. Aiming at the problems that ethanol fuel car is difficult to start，an automobile fuel injector heating control device of small size，precise control，low manufacture cost was provided， and the working principle of the automotive injector heating module was introduced in detail，and teststand software was used  to test the nozzle heating module of the input current，input and output frequency and duty cycle，Feedback-pin with Heater voltage drop，and the ethanol car nozzle heating help start experiment was simulated. The experimental results show that nozzle heating module can effectively help the ethanol vehicle start，and has broad application prospects.
Key words： ethanol fuel； automobile fuel injector heating module； engine control unit（ECU）