Patent ID: 8154422
Filing Date: 2012-04-10
Classification: G08G

Abstract:
1. A vehicle collision avoidance method comprising the steps of: broadcasting vehicle information packages from a host vehicle to a neighboring vehicle and receiving external vehicle information packages sent from the neighboring vehicle, each of the vehicle information packages comprising coordinates, a driving speed and a driving direction of the corresponding vehicle; mapping coordinates of the host vehicle and the neighboring vehicle from world geodetic system to local navigation system (NED coordinate); categorizing collision zones by using the heading angles and the coordinates of the host vehicle and the neighboring vehicle to estimate a possible collision position, a distance from the host vehicle to the possible collision position, and a distance from the neighboring vehicle to the possible collision position; determining whether the possible collision position exists using two conditions, wherein calculating a collision time by using the driving speeds, the distance between the host vehicle to the possible collision position, and the distance between the neighboring vehicle to the possible collision position to calculate at least one collision time; and outputting warning messages containing the at least one collision time and the possible collision position.