Patent ID: 8011902

Claim:
A drive control device of a fuel pump for sucking fuel in a fuel tank of a vehicle, supplying the fuel to an internal combustion engine, and using a motor provided with a brush as a drive source thereof comprising: an idle stop control device that performs an idle stop for stopping the internal combustion engine and the fuel pump when a specified idle stop condition is satisfied while the vehicle is stopped and thereafter starts the fuel pump to automatically start the internal combustion engine when a driver performs a specified operation of starting the vehicle, wherein the idle stop control device at least one of predicts and detects at least one of a stress applied to the brush, a degree of deterioration of the brush, a rush current, a rush current peak value, a rush current duration, a state of the internal combustion engine, and a state of the vehicle at a time of starting the fuel pump, and wherein the idle stop control device switches between stop inhibition control of continuously driving the fuel pump without stopping the fuel pump even at a time of idle stop and control of stopping the fuel pump accordingly.