发明名称 Fault detection and diagnosis for refrigerator from compressor sensor
摘要 A refrigerator, a sealed refrigerant system, and method are provided where the refrigerator includes at least a refrigerated compartment and a sealed refrigerant system including an evaporator, a compressor, a condenser, a controller, an evaporator fan, and a condenser fan. The method includes monitoring a frequency of the compressor, and identifying a fault condition in the at least one component of the refrigerant sealed system in response to the compressor frequency. The method may further comprise calculating a compressor frequency rate based upon the rate of change of the compressor frequency, wherein a fault in the condenser fan is identified if the compressor frequency rate is positive and exceeds a condenser fan fault threshold rate, and wherein a fault in the evaporator fan is identified if the compressor frequency rate is negative and exceeds an evaporator fan fault threshold rate.
申请公布号 EP2679936(A1) 申请公布日期 2014.01.01
申请号 EP20130169554 申请日期 2013.05.28
申请人 WHIRLPOOL CORPORATION 发明人 KERES, STEPHEN L.;LITCH, ANDREW D.;GOMES, ALBERTO REGIO
分类号 F25B49/00 主分类号 F25B49/00
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