Patent ID: 7546182
Filing Date: 2009-06-09
Classification: G01S,G07C,G08G

Abstract:
1. A vehicular communication system adapted for use with a traveling host vehicle and a traveling remote vehicle spaced from and communicatively coupled to the host vehicle, said system comprising: at least one locator sub-system configured to determine current position coordinates for the host vehicle at multiple points along a trip, said host vehicle including a controller communicatively coupled to the sub-system, and configured to store for at least a period the position coordinates, so as to build a history of host vehicle trail coordinates, and autonomously determine a host vehicle heading, based on the current position coordinates, and history of trail coordinates, said host and remote vehicles being cooperatively configured to selectively transmit a message from the host vehicle to the remote vehicle based on the current position or trail coordinates of the host vehicle, said host vehicle being configured to broadcast the message within a zone, wherein the zone is cooperatively defined by a predetermined radius not greater than the linear distance between the position coordinates of the furthest of said multiple points and the current position of the host vehicle said at least one remote vehicle being configured to determine its current position coordinates, and receive the message only when its current position is within the zone.