| 摘要 |
PURPOSE: A fuel amount control method of an LPG(Liquefied Petroleum Gas) vehicle is provided to improve output of an engine and driving experience by properly a controlling air-fuel ratio according to pressure change in an LPG tank. CONSTITUTION: A fuel amount control method for an LPG vehicle comprises the steps of: measuring pressure in an LPG tank; setting up a reference fuel amount according to the amount of oxygen in an exhaust system and air sucked into an engine if a measured pressure is over a first reference value and supplying fuel to the engine according to the reference fuel amount; compensating the reference fuel amount according to the pressure of the fuel tank if the measured pressure is over a second reference value and supplying fuel to the engine according to the compensated reference fuel amount; and stopping supply of fuel to the engine if the measured pressure is less than the second reference value. Therefore, misfire due to pressure change in the fuel tank is prevented.
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