FUEL SUPPLY METHOD AND APPARATUS THEREOF FOR INTERNAL COMBUSTION ENGINE

摘要

PROBLEM TO BE SOLVED: To suppress an injector from being built in a large body and allow a response of the injector and a driving circuit thereof to a high pressure to be disused in a fuel supply method for supplying fuel from the injector to an engine by selecting an LPG fuel or a gasoline fuel as appropriately. SOLUTION: The fuel supply method supplies the engine with fuel from the injector by appropriately selecting either the LPG fuel or the gasoline fuel. The gasoline fuel is selected when a fuel pressure of the LPG fuel in an LPG fuel supply circuit exceeds a predetermined value. Thereafter, the LPG fuel is selected when the fuel pressure of the LPG fuel in the LPG fuel supply circuit is decreased to a level slightly lower than the predetermined value. COPYRIGHT: (C)2003,JPO