METHOD FOR TWO STEP CONTROLLING FUEL OF LPG GAS INJECTION TYPE FUEL PUMP

摘要

The present invention provides a method for controlling a fuel in two steps, capable of reducing noise generated in a fuel pump and supporting efficient combustion of the fuel by controlling the fuel pump in multiple steps according to an engine loading area. When a tank pressure exceeds 360 kPa which is preset information, power applied to the fuel pump is turned off. When the tank pressure exceeds 50 kPa, the fuel pump is operated by comparing a fuel flex element and the preset information.