METHOD AND ARRANGEMENT FOR DE-ICING A TRANSPARENT WINDOW USING AN ELECTRIC HEATING DEVICE

摘要

The invention relates to an arrangement and to a method for de-icing a transparent window, in particular a vehicle windscreen, having an electric heating device, wherein, on the basis of a manually or automatically started de-icing process, the following steps are executed: step A): measuring the window temperature before applying a heating voltage for the first time, wherein the method is terminated if the window temperature exceeds a lower temperature threshold value, or a heating voltage of greater than 100 volts is applied to the heating device over a heating period of a maximum of 2 minutes, in particular a maximum of 90 seconds, if the window temperature is equal to or less than the lower temperature threshold, and step B) is executed; step B): measuring the window temperature after the beginning of the heating period, wherein the de-icing process is terminated if the window temperature reaches an upper temperature threshold value, or step C is carried out if the window temperature is lower than the upper temperature threshold value; step C): applying a heating voltage of greater than 100 volts to the heating device over a heating period of a maximum of 2 minutes, in particular a maximum of 90 seconds, and repeating step B). In steps B) and C), the heating voltage and the heating period are selected such that a heating power of at least 2 kilowatts (kW) per square metre (m2) of window area, in particular at least 3 kW per square metre (m2) of window area, is generated.