Patent ID: 9695756
Date: 2017-07-04
CPC Classifications: F02D,F02M,Y02T

Claim:
1. A fuel supply control device for a bi-fuel internal combustion engine having a plurality of cylinders in which a liquid fuel and a gas fuel can be used as a fuel to be used for engine operation, wherein the fuel supply control device switches the fuel to be used for engine operation from the liquid fuel to the gas fuel, the fuel supply control device includes a processor programmed with an algorithm so that the fuel supply control device judges whether or not the gas fuel can be supplied to one of the plurality of cylinders serving as a judgment object based on a fuel parameter that fluctuates according to supply of the gas fuel to the cylinder in a state where only the gas fuel is supplied experimentally to the cylinder serving as a judgment object without supplying with the liquid fuel and the liquid fuel is supplied to the other cylinders when switching the fuel from the liquid fuel to the gas fuel, and the fuel supply control device switches the fuel to be used for engine operation from the liquid fuel to the gas fuel when the fuel supply control device judges that the gas fuel can be supplied to all of the cylinders.