Patent ID: 7258142
Filing Date: 2007-08-21
Classification: B67D

Abstract:
1. A method for correctively controlling a gas recirculation system at a filling station at which, during a refuelling process of a motor vehicle, liquid fuel is fed by a fuel pump from a storage tank into a fuel tank of the motor vehicle and a gas mixture located above the fuel in the fuel tank is recirculated into the storage tank by a gas pump, comprising: generating a fuel volume flow signal by measuring fuel volume flow using a fuel volume flow meter; generating a gas volume flow signal by measuring gas volume flow using a gas volume flow meter; generating a corrective control signal for a next refuelling process based on at least the fuel volume flow signal and the gas volume flow signal; and actuating the gas recirculation system to control the gas volume flow based on a previous corrective control signal generated during a previous refuelling process.