Apparatus and method for detecting and warning of possible collision with rear of vehicle in front.

摘要

An apparatus (1) of warning a possible rear-end collision of a vehicle having the apparatus against a preceding vehicle, including a computer (2), a distance sensor (3) measuring a vehicle-to-vehicle distance to the preceding vehicle, a velocity sensor (4) measuring the velocity of the present vehicle. The computer (2) 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 (Ta) by a division of the vehicle-to-vehicle distance by the relative velocity. The computer corrects the anticipated rear-end collision time (Ta) in response to an acceleration on the relative velocity. The computer produces a warning signal (Ws) on an alarm (5) in response to the corrected anticipated rear-end collision time. A method of warning a possible rear-end collision is also disclosed.