Vehicle controlling device and vehicle having the same

A vehicle controlling device comprising:

• a deceleration controller 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 controller 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, wherein
• a power supply mounted on the host vehicle is used for executing the deceleration control and the restart control,
• the engine controller prohibits execution of the idling stop control during execution of the deceleration control,
• the deceleration controller performs the deceleration control of the host vehicle using a difference between a preset demanded inter-vehicle distance and an actual inter-vehicle distance between the host vehicle and another vehicle traveling in front of the host vehicle,
• the engine controller further performs acceleration control of the host vehicle using the difference between the demanded inter-vehicle distance and the actual inter-vehicle distance, and
• the engine controller prohibits execution of the idling stop control during execution of following control including the deceleration control and the acceleration control.