Patent ID: 8534265

Claim:
A fuel supply control apparatus for controlling an electric fuel pump in an internal combustion engine provided with the electric fuel pump for pumping fuel to a fuel injection valve and a pressure regulator for regulating fuel pressure at set pressure, comprising: an electric power reducing unit which temporarily reduces driving electric power for the electric fuel pump when the internal combustion engine is in a stationary state; a pressure estimating unit which estimates a change amount of the fuel pressure for when the driving electric power is temporarily reduced; and an electric power correcting unit which corrects the driving electric power based on the change amount of the fuel pressure, herein the electric power correcting unit includes: a first comparing unit which judges whether or not the change amount of the fuel pressure is less than a first threshold; a first correcting unit which reduces the driving electric power when the change amount of the fuel pressure is less than the first threshold; a second comparing unit which judges whether or not the change amount of the fuel pressure is greater than a second threshold which is equal to or greater than the first threshold; and a second correcting unit which increases the driving electric power when the change amount of the fuel pressure is greater than the second threshold.