Patent ID: 8181472
Filing Date: 2012-05-22
Classification: F25B,F25D,Y02B

Abstract:
1. A refrigerator comprising: a refrigeration system having refrigeration components including a compressor, a condenser, an evaporator and an evaporator fan; and, an electronic control system, the electronic control system comprising: a first compressor speed control mode in which a calculated speed, ωcalc, is used to control a speed of the compressor when a freezer compartment temperature is below a freezer compartment upper temperature limit; and a second compressor speed control mode in which an adjusted speed, ωadj, is used to control the speed of the compressor when a freezer compartment temperature is above the freezer compartment upper temperature limit, wherein the electronic control system calculates ωadj using an equation that includes ωcalc and, in addition to ωcalc, further includes the freezer compartment upper temperature limit; wherein ωcalc is a polynomial equation, wherein the polynomial equation, ωcalc comprises: wherein T