SAFETY DEVICE ASSOCIATED WITH A SLIDING PANEL POWERED BY AN ELECTRIC MOTOR AND METHOD USING SAME

摘要

The invention concerns a sequential safety system associated with a mobile closure sliding panel powered by an electric motor (6), said safety system comprising means (20) using the signal derived from an optical fibre to stop or reverse the displacement direction of said mobile panel when the signal changes, and additional safety means for determining accurately the end-of-travel positions of the mobile panel by jointly using the results obtained from the measurement of the frequency of the pulses caused by the rotation of the electric motor (6) powering said mobile panel, and data derived from the optical fibre.