Fault detection and diagnosis for refrigerator from compressor sensor

Title: Fault detection and diagnosis for refrigerator from compressor sensor

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Abstract

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.

Inventors:: Keres, Stephen L.; Gomes, Alberto Regio; Litch, Andrew D.

Issue Date:: 2016-12-06

Research Org.:: Whirlpool Corporation, Benton Harbor, MI (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1334649

Patent Number(s):: 9,513,043

Application Number:: 13/531,707

Assignee:: Whirlpool Corporation (Benton Harbor, MI) DOEEE

DOE Contract Number:: EE0003910

Resource Type:: Patent

Resource Relation:: Patent File Date: 2012 Jun 25

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

Citation Formats


                    Keres, Stephen L., Gomes, Alberto Regio, and Litch, Andrew D. Fault detection and diagnosis for refrigerator from compressor sensor.  United States: N. p., 2016. 
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                    Keres, Stephen L., Gomes, Alberto Regio, & Litch, Andrew D. Fault detection and diagnosis for refrigerator from compressor sensor.  United States.

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                    Keres, Stephen L., Gomes, Alberto Regio, and Litch, Andrew D. Tue .  
        "Fault detection and diagnosis for refrigerator from compressor sensor".  United States.  https://www.osti.gov/servlets/purl/1334649.

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@article{osti_1334649,

  title        = {Fault detection and diagnosis for refrigerator from compressor sensor},

  author       = {Keres, Stephen L. and Gomes, Alberto Regio and Litch, Andrew D.},

  abstractNote = {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.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2016},

  month        = {12}

}

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