Patent ID: 7835864
Filing Date: 2010-11-16
Classification: G08G

Abstract:
1. A system, respective devices of which are adapted to be mounted in a first vehicle and in a second vehicle, for controlling the relative velocity of the first vehicle with respect to the second vehicle, the first vehicle including a first device for receiving first global positioning system (GPS) signals, generating at least one of a first time, position and velocity signal based on the received first GPS signals, generating at least one of a second time, position and velocity signal based upon the motion of the first vehicle, comparing the first and second signals, generating a corrected first vehicle signal, and the second vehicle including a second device for receiving second GPS signals, generating at least one of a third time, position and velocity signal based on the received second GPS signals, generating at least one of a fourth time, position and velocity signal based on the motion of the second vehicle, comparing the third and fourth signals, generating a corrected second vehicle signal, and transmitting the corrected second vehicle signal, the first device further being coupled to a speed control of the first vehicle to control the speed of the first vehicle, the first device further receiving the corrected second vehicle signal, and, from the corrected first vehicle signal and the corrected second vehicle signal controlling the speed of the first vehicle to reduce the likelihood of coincidence of the first and second vehicles.