VEHICLE CONTROLLING DEVICE AND VEHICLE HAVING THE SAME

A vehicle controlling device includes: a VSA-ECU that performs deceleration control of a host vehicle using an inter-vehicle distance between the host vehicle and another vehicle traveling in front of the host vehicle; and an engine control unit that performs idling stop control of stopping drive of an engine as a driving source of the host vehicle upon satisfying stop conditions including a condition that vehicle speed of the host vehicle enters a predetermined low vehicle speed range and performs restart control of restarting the engine upon satisfying a predetermined restart condition. A power supply mounted on the host vehicle is used in common as a power supply used in executing the deceleration control and a power supply used in executing the restart control. The engine control unit prohibits execution of the idling stop control during execution of the deceleration control.