METHOD FOR CONTROLLING IGNITING TIME OF BI FUEL CAR

摘要

A fuel conversion controlling method of a bi fuel vehicle operating an engine is provided to prevent engine torque from being lowered by operating an engine with gasoline fuel and CNG fuel in case the driving of full load condition is demanded in a CNG fuel mode. A fuel conversion controlling method of a bi fuel vehicle operating an engine comprises: a step(101,103) for receiving fuel conversion signals supplied from outside and determining whether present use fuel is gasoline fuel or not and converting the fuel mode into a CNG fuel mode in case the present use fuel is the gasoline fuel; a step(107) for determining driving demand of full load state according to acceleration will of a driver in the CNG fuel mode; and a step(109) for operating the engine with the gasoline fuel and the CNG fuel in case the driving demand of full load state is received.