Patent ID: 8010280

Claim:
A vehicle travel safety device comprising: a storage portion that stores node information and curve information from roads as road data; a self-vehicle position detecting portion that detects the position of a self-vehicle; a curve recognizing portion that recognizes the shape of a curve that exists in the traveling direction of the self-vehicle based on the road data; a vehicle condition detecting portion that detects the vehicle condition of the self-vehicle; a proper vehicle condition setting portion that sets a proper vehicle condition to be able to properly pass a curve based on the shape of the curve recognized by the curve recognizing portion; a comparing portion that compares the vehicle condition detected by the vehicle condition detecting portion and the proper vehicle condition set by the proper vehicle condition setting portion; an operating portion that operates a safety device provided in the self-vehicle when the vehicle condition of the self-vehicle is not in the proper vehicle condition according to the comparison result of the comparing portion; an operation presence determining portion that determines the presence or absence of an operation of the operating portion; and a correcting portion that corrects the road data so as to facilitate operation of the operating portion at a curve where the operating portion is determined to be inactive according to the determination result of the operation presence determining portion, wherein the operation presence determining portion determines that the operating portion is inactive when the safety device does not operate for a recognized curve that is recognized by the curve recognizing portion and also deceleration of a predetermined amount or more occurs by a deceleration operation of the driver before entering the recognized curve or while traveling through it.