Patent ID: 6707392
Filing Date: 2004-03-16
Classification: B60W,G07C,G08G

Abstract:
A system for controlling a speed of a vehicle, said system comprising:a first communications unit located in a first vehicle and coupled to an engine controller for controlling an engine of said first vehicle, said first communications unit comprising a first sending unit for sending a first message to said engine controller; a second communications unit located in a second vehicle remote from said first vehicle; said second communications unit comprising a second sending unit configured to send a second message to said first communications unit, said second message comprising an interrogation signal having a unique return address for said comminications unit; said second sending unit comprising a second laser transmitter and said first communications unit comprising a first laser receiver, said second sending unit configured to selectively send said second message in response to an indication from a user, said second sending unit configured to selected among a plurality of vehicles to send said second message to said first communications unit in response to said indication from the user, and said second sending unit configured to send said second message during movement of said first vehicle and said second vehicle; said first communications unit comprising a third sending unit having a first laser transmitter, said first communications unit configured to respond to said second message from said second communications unit via a third message, said third message providing an identification signal relating to said first communications unit to said second communications unit; and said second sending unit configured to send a fourth message to said first communications unit to cause said first communications unit to send said first message to cause said engine controller to control a speed of said first vehicle.