| 摘要 |
PURPOSE: A method for controlling an engine in low-temperature acceleration of an LPG(Liquefied Petroleum Gas) vehicle is provided to improve the sag phenomenon in low-temperature acceleration by additionally supplying a gaseous fuel to a liquid fuel depending on such conditions as engine rpm and development acceleration. CONSTITUTION: A method for controlling an engine in low-temperature acceleration of an LPG vehicle comprises the steps of deciding if the temperature of cooling water is higher than a third value(S200), deciding if an acceleration pedal open degree is maximum in the first or third speed of an automatic transmission(S230,S240), outputting a first and a second drive on control signals for supplying a gaseous fuel and a liquid fuel if the acceleration pedal open degree is maximum(S250), deciding if engine is turned off(S280), and outputting a first and a second drive off control signals in the engine off state(S290).
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