Patent ID: 8140244

Claim:
A driving evaluating apparatus that evaluates fuel-saving driving of a vehicle, the driving evaluating apparatus comprising: a deceleration area detecting unit that detects a starting point and an end point of a deceleration area as an evaluated subject for the fuel-saving driving based on an accelerator opening rate; a deceleration value information storage unit that stores therein deceleration value information representing a deceleration value per unit time at which the vehicle safely decelerates from a predetermined traveling speed to a predetermined deceleration completion speed; an actual traveling distance calculating unit that calculates an actual traveling distance that the vehicle travels during a time period from detection of the starting point by the deceleration area detecting unit to detection of the end point by the deceleration area detecting unit; a tolerance deceleration traveling distance calculating unit that acquires the deceleration value corresponding to a traveling speed at the starting point detected by the deceleration area detecting unit from the deceleration value information storage unit, and calculates a tolerance deceleration traveling distance based on the traveling speed and the deceleration value; and a timing judging unit that judges deceleration timing at the starting point based on a result of comparison between the actual traveling distance calculated by the actual traveling distance calculating unit and the tolerance deceleration traveling distance calculated by the tolerance deceleration traveling distance calculating unit.