Patent ID: 7246000

Claim:
A harsh braking-applied vehicle warning apparatus, which is to give a warning of existence of a harsh braking-applied vehicle to which harsh braking was applied, to a vehicle to be warned, on a basis of a harsh braking information sent from the harsh braking-applied vehicle, said apparatus comprising: a reception device for receiving the harsh braking information, said harsh braking information including information, which is indicative that the harsh braking has been applied to said harsh braking-applied vehicle, and another information, which is indicative of a position of the harsh braking-applied vehicle; a position detection device for detecting a position of the vehicle to be warned; a forward side vehicle judgment device for judging as whether or not said harsh braking-applied vehicle is a preceding vehicle, which drives in front of the vehicle to be warned, on a basis of the position of said harsh braking-applied vehicle and the position of said vehicle to be warned; a warning device for giving a warning of existence of said harsh braking-applied vehicle to said vehicle to be warned, when it is judged that said harsh braking-applied vehicle is said preceding vehicle; and a distance calculation device for calculating distance between said harsh braking-applied vehicle and said vehicle to be warned, on a basis of the position of said harsh braking-applied vehicle and the position of said vehicle to be warned, wherein said warning device gives the warning at a level, which varies in accordance with said distance, wherein said harsh braking information further includes another information, which is indicative of a driving velocity of said harsh braking-applied vehicle; a velocity detection device for detecting a driving velocity of said vehicle to be warned; and a reaching time-calculating device for calculating a period of time required for said vehicle to be warned to reach the position of said harsh braking-applied vehicle, on a basis of the position of said vehicle to be warned, the position of said harsh braking-applied vehicle, the driving velocity of said vehicle to be warned and the driving velocity of said harsh braking-applied vehicle, wherein said warning device gives the warning at a level, which varies in accordance with said period of time.