Abstract: A method for controlling a defrosting operation of a refrigerator by providing a defrosting operation control method wherein a refrigerator use pattern by the user is learned. The defrosting operation control method based on the learning of the refrigerator use pattern comprises the steps of dividing a day, namely, 24 hours into a plurality of time intervals each corresponding to a predetermined period, for example, one hour, calculating the number of refrigerator door openings by time intervals, repeating the calculating step for predetermined days, storing information about arithmetic average values of the number of door openings calculated by time intervals, and performing a defrosting operation during the period that the refrigerator is not used by the user, based on the arithmetic average value information.

Abstract: A temperature control method for use in a refrigerator comprises a normal operation step for controlling a compressor and a fan to maintain a temperature inside a refrigerating compartment between a positive limit temperature and a negative limit temperature, both derived from a set temperature input by a user; a door-open control step for stopping the fan when a door-open is detected; a reset temperature setting step for setting a reset temperature based on said door-opening time; and a reset temperature operation step for executing a cooling operating by driving a compressor and a fan until the temperature inside the refrigerating compartment decreases to the reset temperature, lower than the set temperature, if it is detected during the normal operating that the reset temperature has been reset.