APPARATUS AND METHOD OF WARNING REAR-END COLLISION

摘要

An apparatus of warning a possible rear-end collision of a vehicle having the apparatus against a preceding vehicle, including a computer, a distance sensor measuring a vehicle-to-vehicle distance to the preceding vehicle, a velocity sensor measuring the velocity of the present vehicle. The computer computes a relative velocity of the present and preceding vehicles from a differential of the vehicle-to-vehicle distance and then an anticipated rear-end collision time by a division of the vehicle-to-vehicle distance by the relative velocity. The computer corrects the anticipated rear-end collision time in response to an acceleration on the relative velocity. The computer produces a warning signal on an alarm in response to the corrected anticipated rear-end collision time. A method of warning a possible rear-end collision is also disclosed.