Patent ID: 6154145
Filing Date: 2000-11-28
Classification: B60J,G07C

Abstract:
A control system for a vehicle closure comprising control means mounted on the vehicle for controlling movement of the closure, a portable transmitter unit, short range transmission means capable of transmitting signals between the transmitter unit and the control means only over distances less than a predetermined maximum distance, and long range transmission means capable of transmitting signals between the transmitter unit and the control means over distances greater than said predetermined maximum distance, wherein the transmitter unit is operable to transmit a closing signal via the long range transmission means requesting closing of the closure, the control means is arranged only upon receipt of the closing signal from the long range transmitter to transmit a confirmation request signal to the transmitter unit, the transmitter unit is arranged, upon receipt of the confirmation request signal to transmit a confirmation signal to the control means, at least one of the confirmation request signal and the confirmation signal being transmitted over the short range transmission means, and the control means is arranged to initiate closing of the closure only upon receipt of the confirmation signal from the transmission unit.