FUEL-SAVING CONTROL DEVICE AND FUEL-SAVING CONTROL METHOD

A fuel-saving control device () equipped with: a surplus drive force calculation unit () for calculating surplus drive force; a fuel-saving control unit () for executing a fuel-saving control which lowers and corrects the indicated fuel injection amount according to the accelerator position when the surplus drive force reaches or exceeds a threshold, and stopping the fuel-saving control when the surplus drive force falls below the threshold; a direction indicator operation detection unit () for detecting operation of a direction indicator; a vehicle position detection unit () for detecting the vehicle position; a map information storage unit () for storing map information; and a fuel-saving control stoppage condition determination unit () for determining whether or not a fuel-saving control should be stopped, on the basis of the map information and the vehicle position when the direction indicator operation is detected. When determined that the fuel-saving control should be stopped, the fuel-saving control unit () stops the fuel-saving control even if the surplus drive force does not fall below the threshold.